The document discusses various climate groups and biomes. It begins by defining climate and weather, noting that climate refers to long-term atmospheric conditions and patterns that determine the types of ecosystems in a region. It then describes three major climate groups (low, mid, and high latitudes), providing details on representative climates and biomes within each group, such as tropical rainforests, grasslands, and tundra. Climate is the dominant factor controlling global patterns of biomes.
This document discusses key concepts in community ecology, including definitions of communities and their structure. It describes how communities are classified based on factors like the biological and physical structure of the plant community. Vertical structure is influenced by plant life forms, while horizontal structure relates to species distribution across landscapes. Species interactions, food webs, and historical assembly processes also shape community organization.
This document discusses plant ecology and environmental factors that influence plants. It covers several climatic and edaphic factors including light, temperature, water, and soil properties.
Light is the main source of energy for photosynthesis. Intensity of light varies based on location and can influence plant structure, physiology, growth, and distribution. Temperature also varies spatially and can affect plant metabolism, reproduction, and tolerance ranges. Water is essential for plant biological processes and its physical properties like surface tension and cohesion influence plant water transport. Soil properties like composition and erosion impact plant nutrition and growth.
Ecology is the scientific study of organisms `at home' which is called as the `environment'. The term `environment' refers to those parts of the world or the total set of circumstances which surround an organism or a group of organisms.
Community ecology is the study of the interactions between species within a biological community. A community is defined as an assemblage of plant and animal species that occur together in a specific habitat. Characteristics of a community include species diversity, dominance by one or a few species, trophic structure consisting of producers, consumers, and decomposers, and successional changes over time. Communities can be classified and analyzed based on quantitative characteristics like frequency, density, and cover, and qualitative characteristics like physiognomy, phenology, and stratification. Ecotones form transitional zones between two adjacent communities, and the biological spectrum indicates the distribution of life forms in a community.
Ecology is the scientific study of interactions between organisms and their environment. The components of ecology include abiotic (non-living) factors like temperature and biotic (living) factors like other organisms. A niche describes an organism's role and interactions within its ecosystem, including how it meets its needs. Relationships between organisms in an ecosystem can be symbiotic like mutualism, or involve one organism benefiting more than the other like parasitism or commensalism. Natural selection leads to evolution as organisms with traits better suited to their environment are more likely to survive and pass on those traits, changing the gene frequency in a population over time. Speciation occurs when reproductive isolation splits one species into two distinct species.
The document discusses species endemism and hotspots of endemism. It defines endemism as species that are unique to a defined geographic location and not found elsewhere. Areas with high rates of endemic species include islands, mountains, and regions like Madagascar, Southeast Asia, the Caribbean, and South Africa. However, many of these endemism hotspots are experiencing high rates of habitat destruction. The document also notes that protecting just 1.4% of the world's land containing hotspots could preserve 44% of vascular plants and 35% of terrestrial vertebrates, but these areas contain 20% of the human population and face threats from development.
1. Biomes are defined as large regions characterized by distinct plant and animal life. The document discusses several major biomes including forests, grasslands, deserts, and aquatic biomes.
2. Each biome has unique abiotic factors like climate and soil that have shaped the adaptations of the plants and animals living there. For example, desert plants have small leaves or none at all to reduce water loss, while aquatic biomes range from freshwater to marine environments.
3. Many biomes are threatened by human activities such as deforestation, pollution, and climate change. Conservation efforts aim to protect biodiversity and restore degraded ecosystems.
Terrestrial ecosystems are ecosystems that exist on land, as opposed to aquatic ecosystems. They can vary greatly in size and include ecosystems like forests, grasslands, deserts, and tundra. Terrestrial ecosystems are characterized by greater temperature fluctuations, higher light availability, and more readily available gases than aquatic ecosystems. They contain a variety of plant life like flowering plants, conifers, and mosses, as well as many animal species including insects, birds, and mammals. Abiotic factors like temperature, sunlight, water, and wind all influence the living and non-living components of terrestrial ecosystems.
This document discusses key concepts in community ecology, including definitions of communities and their structure. It describes how communities are classified based on factors like the biological and physical structure of the plant community. Vertical structure is influenced by plant life forms, while horizontal structure relates to species distribution across landscapes. Species interactions, food webs, and historical assembly processes also shape community organization.
This document discusses plant ecology and environmental factors that influence plants. It covers several climatic and edaphic factors including light, temperature, water, and soil properties.
Light is the main source of energy for photosynthesis. Intensity of light varies based on location and can influence plant structure, physiology, growth, and distribution. Temperature also varies spatially and can affect plant metabolism, reproduction, and tolerance ranges. Water is essential for plant biological processes and its physical properties like surface tension and cohesion influence plant water transport. Soil properties like composition and erosion impact plant nutrition and growth.
Ecology is the scientific study of organisms `at home' which is called as the `environment'. The term `environment' refers to those parts of the world or the total set of circumstances which surround an organism or a group of organisms.
Community ecology is the study of the interactions between species within a biological community. A community is defined as an assemblage of plant and animal species that occur together in a specific habitat. Characteristics of a community include species diversity, dominance by one or a few species, trophic structure consisting of producers, consumers, and decomposers, and successional changes over time. Communities can be classified and analyzed based on quantitative characteristics like frequency, density, and cover, and qualitative characteristics like physiognomy, phenology, and stratification. Ecotones form transitional zones between two adjacent communities, and the biological spectrum indicates the distribution of life forms in a community.
Ecology is the scientific study of interactions between organisms and their environment. The components of ecology include abiotic (non-living) factors like temperature and biotic (living) factors like other organisms. A niche describes an organism's role and interactions within its ecosystem, including how it meets its needs. Relationships between organisms in an ecosystem can be symbiotic like mutualism, or involve one organism benefiting more than the other like parasitism or commensalism. Natural selection leads to evolution as organisms with traits better suited to their environment are more likely to survive and pass on those traits, changing the gene frequency in a population over time. Speciation occurs when reproductive isolation splits one species into two distinct species.
The document discusses species endemism and hotspots of endemism. It defines endemism as species that are unique to a defined geographic location and not found elsewhere. Areas with high rates of endemic species include islands, mountains, and regions like Madagascar, Southeast Asia, the Caribbean, and South Africa. However, many of these endemism hotspots are experiencing high rates of habitat destruction. The document also notes that protecting just 1.4% of the world's land containing hotspots could preserve 44% of vascular plants and 35% of terrestrial vertebrates, but these areas contain 20% of the human population and face threats from development.
1. Biomes are defined as large regions characterized by distinct plant and animal life. The document discusses several major biomes including forests, grasslands, deserts, and aquatic biomes.
2. Each biome has unique abiotic factors like climate and soil that have shaped the adaptations of the plants and animals living there. For example, desert plants have small leaves or none at all to reduce water loss, while aquatic biomes range from freshwater to marine environments.
3. Many biomes are threatened by human activities such as deforestation, pollution, and climate change. Conservation efforts aim to protect biodiversity and restore degraded ecosystems.
Terrestrial ecosystems are ecosystems that exist on land, as opposed to aquatic ecosystems. They can vary greatly in size and include ecosystems like forests, grasslands, deserts, and tundra. Terrestrial ecosystems are characterized by greater temperature fluctuations, higher light availability, and more readily available gases than aquatic ecosystems. They contain a variety of plant life like flowering plants, conifers, and mosses, as well as many animal species including insects, birds, and mammals. Abiotic factors like temperature, sunlight, water, and wind all influence the living and non-living components of terrestrial ecosystems.
The document describes several different biomes: tropical rainforests, temperate rainforests, temperate deciduous forests, taiga, savannas, grasslands and prairies, deserts, and tundra. For each biome, it provides data on average annual rainfall, average temperature, climate, landforms, dominant plant and animal species.
The document defines a biome as a major region characterized by its climate, soil, and dominant plants and animals. It then lists and describes several biomes: tundra, desert, grassland, coniferous forest, temperate deciduous forest, and tropical rainforest. For each biome, it provides information on climate, location, vegetation, and other distinguishing features.
This document defines key terms related to organisms and their environment, including biosphere, ecology, habitat, population, and community. It also discusses the components of a community, including producers, consumers (herbivores, carnivores, omnivores), and decomposers. Additionally, it covers topics like primary/secondary/tertiary consumers, predator-prey relationships, ecosystems, and how energy flows through trophic levels in a food chain and food web.
1. Productivity refers to the rate of biomass production and has two kinds: primary and secondary.
2. Primary productivity is production at the first trophic level by photosynthesis and chemosynthesis, and has two aspects: gross primary productivity which is the total biomass produced, and net primary productivity which is the biomass produced minus respiration.
3. Secondary productivity refers to the rate at which energy is transferred between trophic levels through heterotrophic organisms.
This document defines and classifies different types of climaxes in plant succession. A climax is the final stable plant community for a given environment. There are several types of climaxes, including climatic, edaphic, pre-climax, post-climax, biotic, catastrophic, and disclimax. Each type is distinguished based on the factors influencing the plant community, such as climate, soil conditions, biotic interactions, or human disturbances. The climax community is balanced and resistant to changes in environmental conditions.
Ecology is the study of living organisms and their interactions with each other and their environments. It has many branches that study specific areas like behavior, physiology, evolution, ecosystems, populations, communities, and landscapes. Key branches also include conservation biology, restoration ecology, ecotoxicology, and molecular ecology. Solving ecological problems requires considering biotic factors like competition, quantitative factors like population sizes, climatic factors like temperature and chemistry, taxonomy, and genetic/evolutionary aspects. Ecology blends aspects of other biological sciences to study the complex relationships between organisms and their environments.
Wind
Types of wind
Causes of wind
Temperature a main cause of blowing wind
Effects of wind on Vegetation
Measurement of wind
Advantages of winds
Disadvantages of winds
Effects on Pollination
Effects on Fruits and seed dispersal
This document provides an overview of biogeography, which is the study of the distribution of species across different regions. It discusses the history of biogeography, with Alfred Russel Wallace seen as the "Father of Biogeography" for his early research. There are three main types of biogeography: historical biogeography focuses on origins and extinctions of taxa; ecological biogeography examines current distributions based on environmental interactions; and conservation biogeography works to protect environments. The document also describes different terrestrial and aquatic biomes across the world, highlighting their defining characteristics, climates, plants, and animals.
Ecology is the scientific study of the interactions between organisms and their environment. It was coined in 1866 by Ernst Haeckel from the Greek words "oikos" meaning house or environment, and "logos" meaning study. Ecology studies the distribution and abundance of organisms and the interactions between organisms and their physical and biological environment. It examines these relationships at different levels of organization from organisms to ecosystems. Ecology is important for understanding how to maintain a healthy biosphere and sustainable use of natural resources through principles of conservation.
This document discusses the scope of ecology, including applied ecology, forestry, rangeland management, fish farming, and wildlife management. Applied ecology involves understanding ecosystem needs, problems, and solutions to aid conservation efforts. Forestry is important for resources, habitat, and environmental benefits. Rangeland management maintains grasslands, soil, and acts as a natural mulch. Fish farming provides food and nutrition to meet the increasing demand for meat. Wildlife management is necessary to protect threatened and endangered species from extinction and maintain ecosystem balance.
This presentation intends to give a bird's eye view of different abiotic ecological factors with special reference to light, temperature, fire and wind and their impact on ecosystem.
Plants can be classified based on their light requirements as heliophytes, which grow best in full sunlight, or sciophytes, which grow best in lower light intensities. Temperature affects many physiological processes in plants, such as increasing transpiration and the optimal rate for photosynthesis between 25-35°C. Topographic factors like altitude, slope, and direction of mountain chains influence regional climate and precipitation patterns, which in turn impact vegetation types and distributions. Rainfall determines the formation of biomes and vegetation types, and influences animal life through effects on habitat, metabolism, reproduction, and growth.
This document discusses ecophysiology, which studies how an organism's physiology adapts to environmental conditions. It focuses on three big challenges for plants: obtaining energy and nutrients, maintaining temperature, and obtaining and holding onto water. The document then examines how various environmental factors like light, temperature, and water availability affect plants, and describes adaptations plants have evolved for different environments, such as waxy coatings in desert plants, underwater flexibility in aquatic plants, and hair/needles in cold climate plants.
This document discusses taxonomy, systematics, and taxonomic categories. It defines taxonomy as the classification of organisms based on observable characteristics into hierarchical taxa. Systematics is the study of relationships between organisms. There are defined taxonomic categories including species, genus, family, order, class, division/phylum, and kingdom. Each category represents a rank in the taxonomic hierarchy and groups organisms with decreasingly similar characteristics as the category level increases. The categories are used to systematically classify all known organisms.
Water as an Ecological Factor by Salman Saeed Lecturer BotanySalman Saeed
Water as an Ecological Factor
lecture for Biology, Botany, Zoology, and Chemistry Students by Salman Saeed lecturer Botany University College of Management and Sciences Khanewal, Pakistan.
About Author: Salman Saeed
Qualification: M.SC (Botany), M. Phil (Biotechnology) from BZU Multan.
M. Ed & B. Ed from GCU Faisalabad, Pakistan.
Email: Salmanbotanist@gmail.com
Ecological Succession is the process of change in the species structure of an ecological community over a period of time.
But, over a long period of time, the climate conditions of an ecosystem is bound to change.
No ecosystem has existed or will remain unchanged over a Geological Time Scale.
Ecological restoration is the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed. It aims to re-establish the structure, functions, and species diversity of the original ecosystem. The director of the Gurukula Botanical Center demonstrates how 40 years of conservation techniques, gardening, and restoration practices have helped restore habitats and species in the degraded Western Ghats region of India. She advocates an approach of diagnostic healing and restoration rather than simply conserving what remains or "greening" areas, in order to recreate a healthy alliance between people and their environment.
Climate change and biodiversity are closely linked: climate change has severe direct and indirect impacts on biodiversity and is predicted to be a dominant driver of future biodiversity loss; at the same time, the loss of biodiversity magnifies the adverse effects of climate change.
The document discusses using genetic techniques like PCR, PCR-RFLP, microsatellites, and gene sequencing to study behavior, species identification, and population sizes in various organisms like parasitoid wasps and grizzly bears. It also examines reproductive behaviors like lekking in buff-breasted sandpipers and monogamy versus polygamy in blue and great tits. Population size and evidence of bottlenecks are investigated using Hardy-Weinberg equilibrium calculations on microsatellite data from Joshua tree populations.
The document describes several different biomes: tropical rainforests, temperate rainforests, temperate deciduous forests, taiga, savannas, grasslands and prairies, deserts, and tundra. For each biome, it provides data on average annual rainfall, average temperature, climate, landforms, dominant plant and animal species.
The document defines a biome as a major region characterized by its climate, soil, and dominant plants and animals. It then lists and describes several biomes: tundra, desert, grassland, coniferous forest, temperate deciduous forest, and tropical rainforest. For each biome, it provides information on climate, location, vegetation, and other distinguishing features.
This document defines key terms related to organisms and their environment, including biosphere, ecology, habitat, population, and community. It also discusses the components of a community, including producers, consumers (herbivores, carnivores, omnivores), and decomposers. Additionally, it covers topics like primary/secondary/tertiary consumers, predator-prey relationships, ecosystems, and how energy flows through trophic levels in a food chain and food web.
1. Productivity refers to the rate of biomass production and has two kinds: primary and secondary.
2. Primary productivity is production at the first trophic level by photosynthesis and chemosynthesis, and has two aspects: gross primary productivity which is the total biomass produced, and net primary productivity which is the biomass produced minus respiration.
3. Secondary productivity refers to the rate at which energy is transferred between trophic levels through heterotrophic organisms.
This document defines and classifies different types of climaxes in plant succession. A climax is the final stable plant community for a given environment. There are several types of climaxes, including climatic, edaphic, pre-climax, post-climax, biotic, catastrophic, and disclimax. Each type is distinguished based on the factors influencing the plant community, such as climate, soil conditions, biotic interactions, or human disturbances. The climax community is balanced and resistant to changes in environmental conditions.
Ecology is the study of living organisms and their interactions with each other and their environments. It has many branches that study specific areas like behavior, physiology, evolution, ecosystems, populations, communities, and landscapes. Key branches also include conservation biology, restoration ecology, ecotoxicology, and molecular ecology. Solving ecological problems requires considering biotic factors like competition, quantitative factors like population sizes, climatic factors like temperature and chemistry, taxonomy, and genetic/evolutionary aspects. Ecology blends aspects of other biological sciences to study the complex relationships between organisms and their environments.
Wind
Types of wind
Causes of wind
Temperature a main cause of blowing wind
Effects of wind on Vegetation
Measurement of wind
Advantages of winds
Disadvantages of winds
Effects on Pollination
Effects on Fruits and seed dispersal
This document provides an overview of biogeography, which is the study of the distribution of species across different regions. It discusses the history of biogeography, with Alfred Russel Wallace seen as the "Father of Biogeography" for his early research. There are three main types of biogeography: historical biogeography focuses on origins and extinctions of taxa; ecological biogeography examines current distributions based on environmental interactions; and conservation biogeography works to protect environments. The document also describes different terrestrial and aquatic biomes across the world, highlighting their defining characteristics, climates, plants, and animals.
Ecology is the scientific study of the interactions between organisms and their environment. It was coined in 1866 by Ernst Haeckel from the Greek words "oikos" meaning house or environment, and "logos" meaning study. Ecology studies the distribution and abundance of organisms and the interactions between organisms and their physical and biological environment. It examines these relationships at different levels of organization from organisms to ecosystems. Ecology is important for understanding how to maintain a healthy biosphere and sustainable use of natural resources through principles of conservation.
This document discusses the scope of ecology, including applied ecology, forestry, rangeland management, fish farming, and wildlife management. Applied ecology involves understanding ecosystem needs, problems, and solutions to aid conservation efforts. Forestry is important for resources, habitat, and environmental benefits. Rangeland management maintains grasslands, soil, and acts as a natural mulch. Fish farming provides food and nutrition to meet the increasing demand for meat. Wildlife management is necessary to protect threatened and endangered species from extinction and maintain ecosystem balance.
This presentation intends to give a bird's eye view of different abiotic ecological factors with special reference to light, temperature, fire and wind and their impact on ecosystem.
Plants can be classified based on their light requirements as heliophytes, which grow best in full sunlight, or sciophytes, which grow best in lower light intensities. Temperature affects many physiological processes in plants, such as increasing transpiration and the optimal rate for photosynthesis between 25-35°C. Topographic factors like altitude, slope, and direction of mountain chains influence regional climate and precipitation patterns, which in turn impact vegetation types and distributions. Rainfall determines the formation of biomes and vegetation types, and influences animal life through effects on habitat, metabolism, reproduction, and growth.
This document discusses ecophysiology, which studies how an organism's physiology adapts to environmental conditions. It focuses on three big challenges for plants: obtaining energy and nutrients, maintaining temperature, and obtaining and holding onto water. The document then examines how various environmental factors like light, temperature, and water availability affect plants, and describes adaptations plants have evolved for different environments, such as waxy coatings in desert plants, underwater flexibility in aquatic plants, and hair/needles in cold climate plants.
This document discusses taxonomy, systematics, and taxonomic categories. It defines taxonomy as the classification of organisms based on observable characteristics into hierarchical taxa. Systematics is the study of relationships between organisms. There are defined taxonomic categories including species, genus, family, order, class, division/phylum, and kingdom. Each category represents a rank in the taxonomic hierarchy and groups organisms with decreasingly similar characteristics as the category level increases. The categories are used to systematically classify all known organisms.
Water as an Ecological Factor by Salman Saeed Lecturer BotanySalman Saeed
Water as an Ecological Factor
lecture for Biology, Botany, Zoology, and Chemistry Students by Salman Saeed lecturer Botany University College of Management and Sciences Khanewal, Pakistan.
About Author: Salman Saeed
Qualification: M.SC (Botany), M. Phil (Biotechnology) from BZU Multan.
M. Ed & B. Ed from GCU Faisalabad, Pakistan.
Email: Salmanbotanist@gmail.com
Ecological Succession is the process of change in the species structure of an ecological community over a period of time.
But, over a long period of time, the climate conditions of an ecosystem is bound to change.
No ecosystem has existed or will remain unchanged over a Geological Time Scale.
Ecological restoration is the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed. It aims to re-establish the structure, functions, and species diversity of the original ecosystem. The director of the Gurukula Botanical Center demonstrates how 40 years of conservation techniques, gardening, and restoration practices have helped restore habitats and species in the degraded Western Ghats region of India. She advocates an approach of diagnostic healing and restoration rather than simply conserving what remains or "greening" areas, in order to recreate a healthy alliance between people and their environment.
Climate change and biodiversity are closely linked: climate change has severe direct and indirect impacts on biodiversity and is predicted to be a dominant driver of future biodiversity loss; at the same time, the loss of biodiversity magnifies the adverse effects of climate change.
The document discusses using genetic techniques like PCR, PCR-RFLP, microsatellites, and gene sequencing to study behavior, species identification, and population sizes in various organisms like parasitoid wasps and grizzly bears. It also examines reproductive behaviors like lekking in buff-breasted sandpipers and monogamy versus polygamy in blue and great tits. Population size and evidence of bottlenecks are investigated using Hardy-Weinberg equilibrium calculations on microsatellite data from Joshua tree populations.
Todds Intro To The Ecology Of Global English 2010 02 01teh6
The document discusses concerns with the current dominant "industrial-consumer paradigm" model of education and the global economy. It proposes alternative models that focus on human happiness rather than consumption, view knowledge as dependent on relationships with the environment, and aim to organize society, technology, and the economy to provide satisfying lives for all while protecting the biosphere. The author hopes to educate students to answer questions about improving conditions for workers and maximizing happiness without harming the environment.
This document provides an overview of an online PhD course titled "From Local to Global: Political Ecology, Natural Resource Conflicts and Environmental Peacebuilding". The course is divided into three modules that cover key concepts in environmental governance at different scales, the political dimensions of environmental governance, and applying theory to case studies of natural resource conflicts. The first session introduces foundational concepts like different understandings of the environment, global and local environmental governance, political ecology, and environmental politics. Political ecology examines the political dynamics surrounding environmental issues and emphasizes local power dynamics and conflicts over common-pool resources.
The document discusses how humans have altered the global carbon cycle through burning fossil fuels, deforestation, and burning trees. Burning fossil fuels increases the rate of carbon moving from rocks to the atmosphere. Deforestation and burning trees decreases the rate of carbon moving from the atmosphere to living organisms. This has increased the level of carbon dioxide in the atmosphere, which is a greenhouse gas that absorbs and reradiates infrared radiation, contributing to global climate change. The Mauna Loa curve shows increasing carbon dioxide levels in the atmosphere since the 1950s.
Life processes are the basic functions performed by living organisms to maintain their life on this Earth.
Generally these are the life processes that are basic and common in all living organisms-
Nutrition
Respiration
Transportation
Excretion
The document provides an overview of key concepts in ecology including the biosphere, biomes, ecosystems, and nutrient cycles. It defines important terminology like community, biome, abiotic and biotic components. It describes the major biomes like tundra, grasslands, forests and aquatic biomes. It explains the abiotic factors that influence organisms like temperature, water, light and soil. It outlines the biotic components including producers, consumers and decomposers. It discusses energy flow through ecosystems in food chains, webs and pyramids. It also summarizes important nutrient cycles like nitrogen, carbon, oxygen and water.
The document provides information about ecosystems, including:
1) An ecosystem is a dynamic system consisting of organisms and their environment that influence each other. There are terrestrial and aquatic ecosystems.
2) Ecosystem structure includes stratification, and functions include productivity, decomposition, energy flow, and nutrient cycling.
3) Primary productivity is the production of biomass by plants, while secondary productivity is the production of new biomass by consumers.
This document summarizes a 3-mile forest ecology and geology hike through Cane Creek Gorge in Tennessee. It describes the hike route, which includes waterfalls, geological features, forest structures, and native plants and wildlife. It provides details about the forest composition, nutrient cycle, rock formations, and Falls Creek Falls, the tallest waterfall east of the Rocky Mountains.
The document outlines the biotic components of an ecosystem, categorizing them as producers, consumers, and decomposers. Producers are autotrophic organisms like plants that use photosynthesis to produce food from inorganic substances. Consumers include heterotrophic organisms like animals that obtain energy and nutrients by consuming producers and other organisms. Consumers are divided into primary, secondary, and tertiary consumers based on trophic level. Decomposers such as fungi and bacteria break down dead organic matter from producers and consumers, recycling nutrients back into the ecosystem.
The document discusses key topics in ecology including ecosystems, energy flow, matter recycling, and ecological niches. It then covers threats to global ecosystems like pollution, climate change, and how introducing new species can disrupt ecosystems. The document argues that burning fossil fuels increases carbon dioxide levels, which is a greenhouse gas that contributes to rising global temperatures and climate change debates.
Biomes are large ecosystems defined by their climate and organisms. A biome's location is determined by latitude, altitude, and climatic conditions like solar radiation, seasons, atmospheric circulation, and the ratio of precipitation to evaporation. These factors influence biome temperature and precipitation, which act as limiting factors for what types of communities can exist in different parts of the world.
This document provides an introduction to key concepts in ecology, including biomes, ecological niches, succession, energy and biomass pyramids, and nutrient cycles. It defines ecology as the study of interactions among organisms and between organisms and their environment. It also describes the main biomes like tundra, taiga, grasslands, and rainforests. Primary and secondary succession are discussed as ways communities develop over time.
The document outlines the five key themes of geography: (1) Location, (2) Place, (3) Human-Environment Interaction, (4) Movement, and (5) Regions. Location refers to where places are located and their absolute and relative positions. Place examines the physical and human characteristics of locations. Human-Environment Interaction considers how humans impact and are impacted by their environments. Movement discusses how people, goods, and ideas flow between places. Regions looks at how the world can be divided into defined areas based on various characteristics.
The powerpoint talks about the three tipes of existing tundras, the animals and plants that live there and the consequences that the global warming has on it.
This document introduces the concepts of ecology, ecosystems, biotic and abiotic factors. It defines ecology as the study of relationships between living and non-living things in environments. An ecosystem includes all biotic factors such as plants, animals and microbes as well as abiotic factors like air, water and soil. Biotic factors interact with each other and abiotic factors in complex ways. The document also discusses biomes as large regional communities defined by climate and plant life, and provides examples of biomes and ecosystems.
The document summarizes and compares two ecosystems in Puerto Rico: Bosque Seco de Guánica and El Yunque National Forest. It describes the different forest areas within each ecosystem, including the types of trees and canopy layers. It also discusses the differences in rainfall, soil composition, and how each ecosystem has adapted. Finally, it provides details on some of the unique flora and fauna found in each forest and some environmental problems currently facing them.
There are four major types of ecosystems: grassland, forest, aquatic, and desert. Each ecosystem is defined by its biotic and abiotic factors. Biotic factors include living organisms, while abiotic factors include non-living elements like air, soil, water, and sunlight. Ecosystems are classified based on these factors and provide important functions such as purifying water, recycling nutrients, and supporting biodiversity.
This presentation was originally rendered as an Apple Keynote presentation designed for use with IB Environmental Systems - For the new IB Environmental Systems and Societies course the topic numbers are incorrect but the content still applies. The presentation is also suitable for use with Ecology and Environmental science Courses. Copyright of sciencebitz.com
more sciencebitz resources on iTunesU and iBooks https://itunesu.itunes.apple.com/enroll/DEZ-HWS-HNJ https://itun.es/gb/ymzI6.n
This course introduces students to the concepts of environmental sustainability and provides skills to work in sustainability fields. The course objectives are to provide a blend of environmental disciplines including ecology, conservation, and sustainability related to water, agriculture, development and energy. Learning outcomes include solving large-scale problems using tools from different areas, demonstrating understanding of socioecological systems and how they are impacted by globalization, and applying critical thinking to provide sustainable solutions and build resilient communities. The first module introduces basic concepts like ecosystems, climate change, and elements of sustainable development. Topic 1 defines ecosystems and their structure and components. Topic 3 discusses the Brundtland Commission and sustainable development.
This document provides an overview of ecology and the environment. It discusses the four spheres of Earth (atmosphere, hydrosphere, lithosphere, biosphere). It then explains ecosystems, including their abiotic and biotic factors. Finally, it discusses different types of ecosystems like forests, grasslands, and deserts, as well as biological cycles within ecosystems.
Chapter no 1 introduction. environmental chemistryAwais Bakshy
The document provides an introduction to environmental chemistry. It discusses the objectives of studying environmental chemistry and defines key terms like environment, environmental chemistry, and the components of the environment. It then covers various types of pollution like water, air, soil, noise, radioactive, and thermal pollution. It also discusses the impacts of modern lifestyle on environmental quality, including increased resource use, pollution, deforestation, and water degradation.
The document summarizes the major compartments that make up the global ecosystem, including oceans, freshwaters, atmosphere, and land. It describes the flows of energy and materials between these compartments through biogeochemical cycles like the carbon, nitrogen, and phosphorus cycles. Human activities are impacting these natural cycles and global climate through fossil fuel usage and increased greenhouse gases in the atmosphere.
ECOSYSTEMS AND ENERGY FLOW - Moore 1LIVING WITH THE EARTH.docxmadlynplamondon
ECOSYSTEMS AND ENERGY FLOW - Moore 1
LIVING WITH THE EARTH
ECOSYSTEMS AND ENERGY FLOW - Moore 2
Objectives for this Chapter
• A student reading this chapter will be able to:
– 1. Discuss and define the concepts of biosphere and
climate.
– 2. List and explain the factors influencing climate.
– 3. Define the term biome. List the major global
biomes and discuss their primary features.
ECOSYSTEMS AND ENERGY FLOW - Moore 3
Objectives for this Chapter
– 4. Describe the flow of energy through ecosystems.
Describe and explain the various trophic levels.
– 5. List and explain the various nutrient cycles
including the carbon, nitrogen, and phosphorous
cycles.
– 6. Define the term succession, explain the mechanisms
of succession, and discuss the types of human
intervention that interfere with succession.
ECOSYSTEMS AND ENERGY FLOW - Moore 4
LIVING WITH THE EARTH
ECOSYSTEMS AND ENERGY FLOW
• INTRODUCTION
– We are immersed in life.
– Conditions for most life are found in a layer about the
globe that extends from approximately 5 miles in the
atmosphere (where some microbial spores and insects
may be found) to 5 miles below the ocean surface.
ECOSYSTEMS AND ENERGY FLOW - Moore 5
BIOSPHERE
– This theoretical “layer of life”, is called a biosphere
because life is thought not to exist outside this area.
– Most life occurs in a narrow layer extending from
about a 600 foot depth in the ocean where sunlight is
able to penetrate, to the summer snow line of high
mountain peaks where a thin layer of soil supports
plant life such as lichens and mosses.
ECOSYSTEMS AND ENERGY FLOW - Moore 6
BIOMES
– Biomes are based on the dominant types of vegetation
which are strongly correlated with regional climate
patterns.
ECOSYSTEMS AND ENERGY FLOW - Moore 7
CLIMATE - What is it?
– Climate can be viewed as average weather within a
geographical area viewed over years, or even
centuries.
– Climate, like weather, includes temperature,
precipitation, humidity, wind velocity and direction,
cloud cover, and associated solar radiation.
ECOSYSTEMS AND ENERGY FLOW - Moore 8
What Causes Climate?
– (1) changes in ocean temperatures;
– (2) changes in the earth’s orbital geometry;
– (3) volcanic activity with increased atmospheric dust
and reduced sunlight penetration;
– (4) variations in solar radiation; or
– (5) increases in atmospheric gases that absorb heat
energy.
ECOSYSTEMS AND ENERGY FLOW - Moore 9
How is Climate Affected?
– Climate is most affected by temperature
– The amount of sunlight striking the earth varies by
region and time.
– The seasons are caused by the tilt of the earth on its
axis as it revolves around the sun. (Figure 1-1).
ECOSYSTEMS AND ENERGY FLOW - Moore 10
Fig. 1-1
ECOSYSTEMS AND ENERGY FLOW - Moore 11
How is Climate Affected?
– The sun impacts the earth in bands of decreasing
energy extending north and south from the equator
(Fig. 1-2).
Fig. 1-2
ECOSYSTEMS A ...
The document discusses major ecosystems of the Earth. It defines an ecosystem as consisting of biotic (living) and abiotic (non-living) components that interact. The major ecosystems discussed are aquatic ecosystems including freshwater, estuarine, and marine ecosystems, and terrestrial ecosystems. Specific biomes within terrestrial ecosystems mentioned include alpine, chaparral, and tropical rainforests.
The structural components of an ecosystem consist of nonliving arena and the living organisms.
They are terms as Abiotic compounds and Biotic compounds.
The Earth is like a big team where different parts work together to make everything work well. There are four main parts: the air around us (atmosphere), the water all around (hydrosphere), the solid ground beneath our feet (lithosphere), and all living things (biosphere). Each part has its special job.
The air around us is important because we need it to breathe and live. The water, like oceans and rivers, is a big part too. The solid ground is what we walk on, and all the living things, from plants to animals, make up the biosphere.
These parts work together to make sure everything is balanced and that life can happen. Learning how these parts work together helps us understand how our planet works and changes. It's like a big puzzle, and each piece is important!
1. Atmosphere
The Earth's atmosphere is a complex and dynamic system that surrounds the planet. It is a mixture of gases that are held in place by the Earth's gravity. The atmosphere plays a crucial role in supporting life on Earth by providing the necessary gases for respiration, regulating temperature, and protecting the planet from harmful solar radiation.
2.Biosphere (Living Things)
The biosphere refers to the part of Earth where life exists. It includes the surface of the land, the ocean, the lower atmosphere, and the upper lithosphere. The biosphere is a complex and interconnected system that sustains and supports life.
.Hydrosphere (Water)
The hydrosphere refers to the total amount of water on Earth's surface, including oceans, seas, lakes, rivers, groundwater, and even the water vapor in the atmosphere. It is a critical component of the Earth system and plays a crucial role in supporting life and influencing climate.
4.Lithosphere (Land)
The lithosphere is the outermost shell of the Earth and is composed of the Earth's crust and the uppermost part of the mantle. It is one of the Earth's four major spheres, along with the hydrosphere (water), atmosphere (air), and biosphere (living organisms). The term "lithosphere" comes from the Greek words "lithos," meaning rock, and "sphaira," meaning sphere.
Marine ecosystems are complex with many interdependencies. Phytoplankton are the base of the food web and help reduce climate change through carbon uptake. Coral reefs protect associated communities by providing habitat and refuge from predators. Seagrasses and seaweeds also form productive habitats. However, these ecosystems face many threats from pollution, climate change, and other human impacts that can degrade their biodiversity and stability. Maintaining healthy marine ecosystems supports ocean life.
Global climate change poses challenges for human health through various pathways. Rising temperatures lead to more extreme heat waves which can cause illnesses and death. Climate change also alters infectious disease patterns by changing the range of disease-carrying insects and the transmission of water and food-borne pathogens. Long term climate change impacts health indirectly through threats to food security, clean air and water from environmental degradation. Addressing climate change requires global cooperation to transition away from fossil fuels and reduce greenhouse gas emissions per the recommendations of the Intergovernmental Panel on Climate Change.
1. The document provides information about various types of ecosystems including terrestrial, aquatic, forest, grassland, desert, pond, lake, marine and ocean ecosystems.
2. It describes the key components of an ecosystem as biotic factors (living organisms) and abiotic factors (non-living physical components).
3. Energy flows through ecosystems via food chains and food webs with plants at the base converting solar energy to chemical energy which is then transferred between trophic levels.
Ecology is the scientific study of interactions between organisms and their environment. These interactions determine species distributions and abundances. Ecologists use observations and experiments to understand why species are distributed and abundant as they are. Key factors include climate, habitat, resources, and interactions with other species. Ecosystems consist of all organisms in a community along with their abiotic environment. Energy flows through ecosystems while matter cycles within them. Primary producers convert light energy to chemical energy, which is then transferred through food webs to consumers and decomposers.
This document discusses different ecosystem types and how energy flows through them. It begins by defining ecosystems and their components like habitats and communities. It then explains how plants get energy through photosynthesis while animals get energy by consuming other organisms or their waste. The document outlines the processes of photosynthesis and cellular respiration and how they transfer energy. It describes trophic levels and how energy is lost at each level. Different ecosystem types are then discussed like forests, grasslands, aquatic systems, and wetlands. Key aspects of each system and the flows of energy are summarized.
Ecology is the scientific study of interactions between organisms and their environments, focusing on energy transfer. The environment consists of biotic factors like other living organisms and abiotic factors like temperature, soil, sunlight, and water. Together biotic and abiotic factors define an organism's habitat and niche, where its niche represents its ecological role. Climate and weather patterns are influenced by factors like the Earth's rotation and tilt, which help define global patterns of biomes and influence local ecosystems.
The document provides an overview of environmental management and the components that make up the environment. It discusses the atmosphere, hydrosphere, lithosphere, and biosphere. It also summarizes several important biogeochemical cycles including the nitrogen cycle, water cycle, carbon cycle, and oxygen cycle. The cycles describe the circulation and recycling of key elements like nitrogen, water, carbon, and oxygen between living organisms and their surroundings.
The document discusses the components of the environment. It is divided into three main sections:
1) The physical component includes abiotic factors like soil, air, water, climate and temperature that determine habitat conditions. It is divided into atmosphere, hydrosphere and lithosphere.
2) The biological component contains all living things that interact with the physical environment to form ecosystems. It includes producers, consumers and decomposers.
3) The social component consists of human and animal populations and their social structures and interactions. Humans are social animals that establish laws and policies for societies.
The document discusses the components of the environment. It is divided into three main sections:
1) The physical component includes abiotic factors like soil, air, water, climate and temperature that determine habitat conditions. It is divided into atmosphere, hydrosphere and lithosphere.
2) The biological component contains all living things that interact with physical factors to form ecosystems. It includes producers, consumers and decomposers.
3) The social component consists of human and animal populations and their social structures and interactions. Humans are social animals that establish laws and policies for societies.
The document discusses ecosystems, defining them as interconnected systems of living organisms and non-living components that interact. It describes the key components of ecosystems - abiotic (non-living) factors like water, air, minerals; and biotic (living) factors like producers, consumers, and decomposers. The two main types of ecosystems are aquatic (marine and freshwater) and terrestrial (forests, deserts, grasslands, mountains). Forest ecosystems are further divided into tropical and temperate rainforests, deciduous forests, taiga, etc. The ecosystem is a dynamic system formed by interactions between its living and non-living parts.
MENAKA PPT PN ENVIRONMENT : TO KNOW ABOUT THE SURRENDERINGvivekanandaroy2003
The document provides information on different types of environments and ecosystems. It begins with defining the natural environment as consisting of land, water, air, plants and animals. It then describes different ecosystem types, including terrestrial (forest, grassland, tundra, desert) and aquatic (freshwater, marine). For each ecosystem type, it provides one or two defining characteristics. Finally, it defines the human environment as the physical, social and economic factors that determine living conditions for those affected by human activities.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
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The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
AI 101: An Introduction to the Basics and Impact of Artificial IntelligenceIndexBug
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UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
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Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
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Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
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Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
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Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
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We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
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Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
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* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
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We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
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Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
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Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
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How to Get CNIC Information System with Paksim Ga.pptx
Global ecology
1.
2. The term ecosystem was coined by A.G. Tansley in 1935.
An ecosystem is an interaction between a biotic community and
its abiotic environment.
3. • The term weather and climate both refer to atmospheric
conditions- temperature, humidity, precipitation, wind
direction and wind velocity- but they refer to different
time scales.
• Weather- ―It is the short-term state of atmospheric
conditions at a particular place and time‖.
• Climate – “Refers to average atmospheric condition,
and the extent of their variation, at a particular place
over a longer time.‖
4. Climate is the state factor that most strongly governs the global
pattern of ecosystem structure and processes.
5. • Climate gives rise to predictable types of ecosystems.
• Climate is a key mechanism by which ecosystems interact with
the total Earth System.
6. World biomes are controlled by climate. The climate of a region will
determine what plants will grow there, and what animals will inhabit it. All
three components, climate, plants and animals together form a biome.
Three major climate groups.
Three major climate groups show the dominance of special combinations
of air-mass source regions.
Group I : Low-latitude Climates - i Tropical Moist Climates
ii Wet-Dry Tropical Climates
iii Dry Tropical Climates
Group II : Mid-latitude Climates - i Dry Mid Latitude Climates
ii Mediterranean Climates
iii Moist Continental Climates
Group III : High-latitude Climates - i Boreal Forest Climates
ii Tundra Climates
iii Highland Climates
7. 1.Tropical Moist Climates (RAINFOREST)
• Average temperature: 18 °C
• Annual Precipitation: 262 cm. (103 in.)
• Latitude Range: 10° S to 25 ° N
• Global Position: Amazon Basin; Congo
Basin of equatorial Africa; East Indies,
from Sumatra to New Guinea.
Group I : Low-latitude Climates - These climates are controlled by
equatorial a tropical air masses.
8. 2.Wet-Dry Tropical Climates (SAVANNA)
• Temperature Range: 16 °C
• Annual Precipitation: 0.25 cm.
• Latitude Range: 15 ° to 25 ° N and S
• Global Range: India, Indochina, West Africa ,
southern Africa, South America and
the north coast of Australia
3.Dry Tropical Climate (DESERT BIOME)
• Temperature Range: 16° C
• Annual Precipitation: 0.25 cm.
• Range: 15° - 25° N and S.
• Global Range: southwestern United States
and northern Mexico Argentina; north Africa;
south Africa; central part of Australia.
9. Group II : Mid-latitude Climates- Climates in this zone are affected by
two different air-masses. The tropical air-masses are moving towards
the poles and the polar air-masses are moving towards the equator.
These two air masses are in constant conflict. Either air mass may
dominate the area, but neither has exclusive control.
1.Dry Mid latitude Climates (STEPPE)
• Temperature Range: 24° C (43° F).
• Annual Precipitation: less than 10 cm in the
driest regions to 50 cm in the moister steppes.
• Latitude Range: 35° - 55° N.
• Global Range: Western North America ,
Eurasian interior, from steppes of eastern Europe
to the Gobi Desert and North China.
10. 2.Mediterranean Climate
(CHAPARAL BIOME)
• Temperature Range: 7 °C (12 °F)
• Annual Precipitation: 42 cm (17 in).
• Latitude Range: 30° - 50° N and S
• Global Position: central and southern California; coastal bordering the
Mediterranean Sea; Cape Town region of South Africa.
3.Moist Continental Climate
(DECIDIOUS FOREST BIOME)
• Temperature Range: 31 °C (56 ° F)
• Average Annual Precipitation: 81 cm
• Latitude Range: 30° - 55° N and S
(Europe: 45° - 60° N).
• Global Position: eastern parts of the United States and southern
Canada; northern China; Korea; Japan; central and eastern Europe.
11. Group III : High-latitude climates - Polar and arctic air masses
dominate these regions. Canada and Siberia are two air-mass sources
which fall into this group. A southern hemisphere counterpart to these
continental centers does not exist. Air masses of arctic origin meet
polar continental air masses along the 60th and 70th parallels.
1.Boreal forest Climate (TAIGA BIOME)
• Temperature Range: 41 °C, lows; -25 °C, highs; 16 °C
• Average Annual Precipitation: 31 cm (12 in).
• Latitude Range: 50° - 70° N and S.
• Global Position: central and western Alaska;
Canada, from the Yukon Territory to Labrador;
Eurasia, from northern Europe across all of
Siberia to the Pacific Ocean.
12. 2.Tundra Climate (TUNDRA BIOME)
• Temperature Range: -22 °C to 6 °C (-10 °F to 41 °F).
• Average Annual Precipitation: 20 cm (8 in).
• Latitude Range: 60° - 75° N.
• Global Position: arctic zone of North America;
Hudson Bay region; Greenland coast; northern
Siberia bordering the Arctic Ocean.
3.Highland Climate (ALPINE BIOME)
• Temperature Range: -18 °C to 10 °C (-2 °F to 50°F)
• Average Annual Precipitation: 23 cm (9 in.)
• Latitude Range: found all over the world
• Global Position: Rocky Mountain Range in
North America, the Andean mountain range in
South America, the Alps in Europe, Mt. Kilimanjaro
in Africa, the Himalayans in Tibet, Mt. Fuji in Japan.
13. Ecosystem is an open system.
It is broad and flexible.
The function of an ecosystem is related to energy
flow and material cycling through and within the
system.
Some of the major natural ecosystems are forests,
grasslands, deserts, mountains, seas, rivers, lakes,
ponds, etc.
14. The functioning of an ecosystem comprises the following three aspects:
ENEERGY FLOW
PRODUCTIVITY
BIOGEOCHEMICAL CYCLING
There are two essential components of an ecosystem. They are:
1.Abiotic factors and 2.Biotic factors
15. The ultimate source
of energy for life on
earth is SUN!!!
Energy flows in only one
direction from producers
to tertiary consumers
16. Consumers: Organisms that obtains energy by feeding on other
organisms. (Heterotrophs)
There are 3-Types of consumers:
1.Herbivores
2.Carnivores
3.Scavengers and decomposers.
Producers: Organisms that use the energy from the sun to produce
their own food.
Ex : Plants, algae and some bacteria.
17. 1. Herbivores: Heterotrophs
that consume plants only. (First
order consumers).
Ex : cows , deer, rabbits..
2. Carnivores: Heterotrophs that
consume other animals. (Second
order consumers.)
Ex : Humans , cats…
3.(i) Scavengers: Organisms
that feed on dead organisms.
Ex: vultures
(ii) Decomposers: Break down
wastes and dead organisms and
return the raw materials to the
ecosystem.
Ex : Bacteria and fungus.
18. Food chain - a model that shows how
matter and energy moves through an
ecosystem. Energy moves from
producer to consumer to decomposer.
Food web: many overlapping food chains forms Food web
19. Productivity of an ecosystem means the amount of organic matter
produced or accumulated by plants or producers per unit of time and area.
Types Of Productivity:
1. Primary Productivity
2. Secondary Productivity
3. Net Productivity.
20. Primary productivity - the amount of organic matter made in a
given time by green plants in an ecosystem.
Primary productivity is of two types:
Gross primary production – total organic matter used up in
respiration during a particular period.
Net primary production – the amount of organic matter
produced or stored in plant tissues in excess of that used up by
the plants during respiration.
Secondary productivity – the capacity of energy storage at
the consumer level or 2nd trophic level.
Net productivity - the rate of storage of organic matter not
used by the consumer level or 2nd trophic level.
21. The natural flow of water through various components of
environment resulting in the global circulation is called water cycle.
22. Steps in Hydrological Cycle:
Evaporation: Surface water is heated by sun and evaporates to become
water vapour, water vapour floats in the air.
Condensation: As water vapour rises into the air it gradually cools and
condenses and become minute droplet of water.
Clouds: Tiny droplets of water together forms clouds.
Precipitation: The fall of water on earth surface in any form of water it
may be in the form of dew, drizzle, rain is known as precipitation.
Runoff: Precipitated rain water accumulates and flows on the surface
and sub- surface towards rivers, streams, and underground stores and
ultimately reaches to sea.
Percolation: The process of stored water flowing under earth, merge to
the ground water source is called percolation and infiltration.
Transpiration: The water which directly evaporates from leaves of
plants is called Transpiration.
Completion of Cycle: All the water bodies continues its journey towards
the natural slope and meet the sea where the cycle starts again
23. • The earth's water supply stays the same but humans can alter the
cycle. As population increases, and living standards rise this can
increase the demand for water.
• Humans impact the water cycle by polluting the water in rivers,
streams, reservoirs etc.
• We are polluting it with harmful chemicals and disgusting
substances by dumping waste into the ocean.
• These reasons can create an imbalance and change the quality and
quantity of the water.
Human Impacts On Hydrological Cycle
24. Biological and geochemical processes move nutrients between organic
and inorganic parts of the ecosystem
Chemical elements are available to ecosystems only in limited amounts.
Life on Earth depends on the recycling of essential chemical elements.
Nutrient circuits involve both biotic and abiotic components of
ecosystems and are called Biogeochemical cycles.
There are two general categories of biogeochemical cycles:
Gaseous forms of carbon, oxygen, sulfur, and nitrogen occur in the
atmosphere, and cycles of these elements are global.
Sedimentary forms: Elements that are less mobile in the environment,
such as phosphorus, potassium, calcium, and trace elements generally
cycle on a more localized scale in the short term.
25.
26. The concentration of carbon in living matter (18%) is almost 100
times greater than its concentration in the earth (0.19%). So living
things extract carbon from their nonliving environment. For life to
continue, this carbon must be recycled.
Carbon exists in the nonliving environment as:
carbon dioxide (CO2) in the atmosphere and dissolved in water
(forming HCO3
−)
carbonate rocks (limestone and coral = CaCO3)
deposits of coal, petroleum, and natural gas derived from
once-living things
dead organic matter, e.g., humus in the soil
27. Carbon enters the biotic world through the action of autotrophs:
• primarily photoautotrophs, like plants and algae, that use the
energy of light to convert carbon dioxide to organic matter.
• and to a small extent, chemoautotrophs — bacteria and archea
that do the same but use the energy derived from an oxidation of
molecules in their substrate.
Carbon returns to the atmosphere and water:
• by respiration (as CO2)
• burning
• decay (producing CO2 if oxygen is present, methane (CH4) if it is not.
28. Since the Industrial Revolution approximately 150 years ago,
human activities such as the burning of fossil fuels and deforestation
have begun to have an effect on the carbon cycle and the rise of
carbon dioxide in the atmosphere. Human activities affect the carbon
cycle through emissions of carbon dioxide (sources) and removal of
carbon dioxide (sinks).
When oil or coal is burned, carbon is released into the
atmosphere at a faster rate than it is removed. As a result, the
concentration of carbon dioxide in the atmosphere increases.
Deforestation is the permanent removal of trees from forests.
This large-scale removal of trees from forests by people results in
increased levels of carbon dioxide in the atmosphere which causes
Green House Effect.
Human Impacts On Carbon Cycle
29.
30. All life requires nitrogen-compounds, e.g., proteins and nucleic acids.
Air, which is 79% nitrogen gas (N2), is the major reservoir of nitrogen.
The nitrogen molecule (N2) is quite inert . Organisms cannot use
nitrogen in this form.
Plants must secure their nitrogen in "fixed" form, i.e., incorporated in
compounds such as:
nitrate ions (NO3
−)
ammonia (NH3)
urea (NH2)2CO
The Nitrogen cycle involves four major processes:
Nitrogen fixation
ammonification
Nitrification
Denitrification
31. 1. Nitrogen Fixation: To break nitrogen molecule(N2) apart so that its
atoms can combine with other atoms requires the input of substantial
amounts of energy. Three processes are responsible for most of the
nitrogen fixation in the biosphere:
atmospheric fixation by lightning
industrial fixation
biological fixation by certain microbes.
2. Ammonification: When a plant or animal dies, or an animal expels
waste, the initial form of nitrogen is organic. Bacteria like proteus,
streptomyces etc., or fungi in some cases convert the organic nitrogen
within the remains back into ammonium (NH4
+) and the process is called
ammonification or mineralization
32. 4. Denitrification: The three processes above remove nitrogen from
the atmosphere and pass it through ecosystems. Denitrification
reduces nitrates to nitrogen gas, thus replenishing the atmosphere. .
This process is performed by bacterial species such as pseudomonas
and Clostridium in anaerobic conditions.They use the nitrate as an
electron acceptor in the place of oxygen during respiration. These
facultatively anaerobic bacteria can also live in aerobic conditions.
3. Nitrification: Ammonia can be taken up directly by plants usually
through their roots. Most of the ammonia produced by decay is
converted into nitrates. This is accomplished in two steps:
Bacteria of the genus Nitrosomonas oxidize NH3 to nitrites (NO2
−).
Bacteria of the genus Nitrobacter oxidize the nitrites (NO2
−) to
nitrates (NO3
−).
It is important for the ammonia to be converted to nitrates because
accumulated nitrites are toxic to plant life.
33. Many human activities have a significant impact on the nitrogen cycle.
Burning fossil fuels, application of nitrogen-based fertilizers, and other
activities can dramatically increase the amount of biologically available
nitrogen in an ecosystem.
In terrestrial ecosystems, the addition of nitrogen can lead to nutrient
imbalance in trees, changes in forest health, and declines in biodiversity.
In agricultural systems, fertilizers are used extensively to increase
plant production, but unused nitrogen, usually in the form of nitrate, can
leach out of the soil, enter streams and rivers, and ultimately make its
way into our drinking water.
Additionally, increases in nitrogen in aquatic systems can lead to
increased acidification in freshwater ecosystems.
Human Impacts On Nitrogen Cycle
34.
35. Sulfur is the 10th most abundant element in the environment, with atomic
number 16. It is a bright yellow crystalline solid in its normal state, with most
of it stored underground in rocks and minerals and in ocean floor deposits.
Sulfur is used for fertilizers, gunpowder, matches, and in insecticides and
fungicides. It is a part of vitamins, proteins and hormones.
Steps of Sulfur Cycle :
The cycle begins with the weathering of rocks, which releases stored
sulfur.
Sulfur comes into contact with the air, converting it to sulfate (SO4).
Sulfate is taken up by plants and microorganisms and is changed to
organic form.
Sulfur moves up the food chain.
36. When organisms die, some of the sulfur is released back to sulfate
and enter microorganisms.
Natural sources emit sulfur into the air.
Sulfur eventually settles back to the Earth or comes through
rainfall, with some also going to the ocean.
Sulfur is also drained to rivers and lakes, eventually to the oceans.
Some of the sulfur from oceans go back to the atmosphere
through the sea spray .
Remaining sulfur go to ocean floor and form ferrous sulfide, which
is responsible for the black color of most marine sediments.
37. Effects of Sulfur Cycle on Nature
Sulfur is one of the processes that allow natural weathering and other
natural processes .
Sulfur Cycle does not allow acid rains because it regulates the amount
of sulfur present in the atmosphere, hydrosphere, and lithosphere .
Sulfuric acid forms sulfuric acid smog when it mixes with water vapor.
Effects of Human Progress on the Sulfur Cycle
Human activities since the start of the Industrial Revolution contributed
to most of the sulfur that enters the atmosphere. One-third of all sulfur
that reaches the atmosphere comes from human activities.
Emissions from human activities react to produce sulfate salts that
create acid rain .
Sulfur dioxide aerosols absorb ultraviolet rays, which cools areas and
offsets global warming caused by greenhouse effect.
38.
39. PROCESS:
Phosphorus enters environment from rocks or deposits.
Apatite is the phosphate rock where phosphate is available.
Weathering and erosion releases phosphate ions that are soluble in water.
Phosphate then acts as fertilizers or nutrients for land plants.
When animals and plants die, phosphates will return to the soils or oceans.
Again during decay,
Phosphorus cycles through plants and animals much faster than it does
through rocks and sediments.. A lot of phosphate goes into the water from
erosion and leaching Water plants use this phosphate as nutrients.
Phosphorus and phosphorus-based compounds are usually solids.
Phosphorus normally occurs in nature as part of a phosphate ion (PO4).
Phosphorus is an essential nutrient for plants and animals in the form of
ions.
Phosphate is a component of nucleotides, it forms nucleic acids.
40. Human Impacts On Phosphorus Cycle
Humans effect the phosphorus cycle by moving phosphorus around
and it becomes runoff. When it is in run-off in can end up in large
stores of water and the phosphorous can cause eutrophication to
occur and this can kill animals and plants in the water.
In many areas, excess phosphates from large amounts of fertilizer
used in agriculture are a problem. Phosphates are also a common
ingredient in pesticides. Other major sources of phosphates in
aquatic ecosystems include outflow from sewage treatment
facilities and runoff of animal waste from livestock feedlots.
Phosphate pollution of lakes and rivers results in heavy growth of
algae and cyanobacteria, making the water murky. Microbes
consume a great deal of oxygen as they decompose the extra
biomass, a process that depletes the water of dissolved oxygen.
These changes lead to reduced species diversity.