Ecosystem is a defined place in which interactions take place between a community, with all its complex interrelationships and the physical environment.
Ecology derived from two Greek word “oikos” means house, habitation or place of living & “logos” means study.
Definition: Ecology is the study of interrelationship between living organism and their physical and biological environment.
Environment is what is surrounding us, whether living or non-living. Things wecan see and feel, things we cannot see but feel e.g. air, people and theirpractices and landforms also the weather
ecosystem topic will help you in understanding the basic means and other components like structure, functions, types, ecological pyramid, energy flow in ecosystem and many more environment related studies.
Ecology derived from two Greek word “oikos” means house, habitation or place of living & “logos” means study.
Definition: Ecology is the study of interrelationship between living organism and their physical and biological environment.
Environment is what is surrounding us, whether living or non-living. Things wecan see and feel, things we cannot see but feel e.g. air, people and theirpractices and landforms also the weather
ecosystem topic will help you in understanding the basic means and other components like structure, functions, types, ecological pyramid, energy flow in ecosystem and many more environment related studies.
Ecology is the scientific study of the intricate relationships between living organisms and their environment. It seeks to understand how organisms interact with one another and their surroundings, from the smallest microorganisms to the largest ecosystems. One fundamental aspect of ecology is the examination of biogeochemical cycles, which are essential processes that govern the flow of elements and compounds through the Earth's ecosystems. These cycles encompass the movement of essential elements like carbon, nitrogen, phosphorus, and water between the living and non-living components of the environment. For example, the carbon cycle involves the exchange of carbon dioxide between the atmosphere, plants, and animals, regulating the levels of this greenhouse gas in the atmosphere and influencing climate. The nitrogen cycle is another vital process, as it controls the availability of nitrogen for plants and, subsequently, for all organisms in a given ecosystem. Biogeochemical cycles are critical to maintaining the delicate balance of nutrients and elements necessary for life on Earth, and any disruptions to these cycles can have profound ecological consequences. Understanding these cycles is crucial for environmental conservation and for addressing global challenges like climate change and nutrient pollution. In sum, ecology and biogeochemical cycles are intimately linked, providing the foundation for understanding how life and the environment are intricately interconnected and interdependent.
Understandings:
Most species occupy different trophic levels in multiple food chains
A food web shows all the possible food chains in a community
The percentage of ingested energy converted to biomass is dependent upon the respiration rate
The type of stable ecosystem that will emerge in an area is predictable based on climate
In closed ecosystems energy but not matter is exchanged with the surroundings
Disturbance influxes the structure and rate of change within ecosystems
Applications:
Conversion ratio in sustainable food production practices
Consideration of one example how humans interfere with nutrient cycling
Skills:
Comparison of pyramids of energy from different ecosystems
Analysis of a climograph showing the relationship between temperature, rainfall and the type of ecosystem
Construction of Gersmehl diagrams to show the inter-relationships between nutrient stores and flows between taiga, desert, and tropical rainforest.
Analysis of data showing a primary succession
An investigation into the effect of an environmental disturbance on an ecosystem
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skills
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
BREEDING METHODS FOR DISEASE RESISTANCE.pptxRASHMI M G
Plant breeding for disease resistance is a strategy to reduce crop losses caused by disease. Plants have an innate immune system that allows them to recognize pathogens and provide resistance. However, breeding for long-lasting resistance often involves combining multiple resistance genes
2. Ecology
Greek word, Eco: House; Logy: Study.
“The study of one’s house”
It is the study of systems that include interactions
among and between the organisms and also their
interaction with non living Environment.
The interactions involve energy and matter.
One of the interaction which focus on ecological
relationships is ecosystem.
3. Ecosystem
It is a defined space in which interactions take place
between a community, with all its complex
interrelationships, and the physical environment.
It is the basic functional unit and includes both
organisms and abiotic environment.
The cycling of materials between living and non-
living factors is an ecological system or ecosystem.
Sustained life on earth, is a characteristic of
ecosystems, not of individual organisms or
populations.
5. Structure of Ecosystem
• Biotic components: On the basis of their trophic
status, organisms in an ecosystem are broadly
divided into autotrophs and heterotrophs.
• Autotrophs are organisms that can produce their
own food such as green plants (with chlorophyll) and
certain bacteria, which obtain their energy from the
sun and through photosynthesis. These are usually
known as producers.
• Heterotrophs, known as consumers, depend directly
or indirectly upon the autotrophs for their food.
6. Consumers are grouped into:
• Primary consumers: These include herbivorous animals (e.g.,
rodents, cows, deer, goats, buffaloes, etc.), which depend on
green plants for their food.
• Secondary consumers: These include carnivores and
omnivores (e.g., sparrows, crows, foxes, wolves, dogs, etc.).
• Tertiary consumers: These are top carnivores (e.g., lions,
tigers, hawks, vultures, etc.), which prey upon herbivores and
omnivores.
• Decomposers and transformers: These are the living
components of the ecosystem such as fungi and bacteria.
They decompose the dead remains of the producers and
consumers and convert the complex organic substances into
simple organic compounds. These are further broken down by
bacteria and converted into inorganic forms, which are taken
up by green plants.
8. • Abiotic components: Abiotic components of the
ecosystem include a variety of organic compounds
and basic inorganic elements and compounds such
as soil, water, oxygen, calcium, carbonates and
phosphates. The physical factors such as moisture,
wind direction and solar radiation also form part of
abiotic components. The amount of nonliving
components (e.g., calcium, phosphorous and
nitrogen) present at any given time is known as
standing state.
9. Food Chain and Food Web
• One way individuals in a community interact is by feeding
on one another. The food chain shows how each living
thing gets its food from the other to gain energy for its
growth and survival.
• Energy, chemical elements, and some compounds are
thus transferred from creature to creature along food
chains and in complex cases called food webs.
• Food web is representation of the interlocking food
chains that connect all organisms in an ecosystem.
• The transfer of energy from the autotrophs (i.e., plants)
through a series of organisms that consume and are
consumed is called the food chain.
• At each transfer, a proportion (often as much as 80 or
90%) of the potential energy is lost as heat. Therefore the
shorter the food chain the greater is the energy available
to that population.
10. Food chains are of two basic types,
and these are:
• Grazing food chain, which, starting from a green
plant base, goes to grazing herbivores and on to
carnivores;
• Detritus food chain, which goes from non-living
organic matter into micro organisms and then to
detritus-feeding organisms (detritivores) and their
predators.
11. Biological production
• Biological production involves the capture of usable
energy and the production of organic compounds.
• This includes all living things and their products.
• The use of energy in organic matter in both
heterotrophy and autotrophy is accomplished
through respiration.
• In respiration, an organic compound is combined
with oxygen to release energy and produce carbon
dioxide and water.
• There are three measures of production, viz.,
biomass, energy content and carbon content.
12. • Biomass is usually measured as the amount of total
organic matter per unit surface area of the earth.
• The change in biomass over a given period of time is
called net production.
• Net production = Gross production - Respiration
• For example, the net production of the tree is energy
contained in what is left at the end of the year and
includes new wood laid down in the trunk, new buds
that will develop into leaves and flowers the next
year, and new roots. Net production results in the
increase of total weight, energy content and stored
carbon (Botkin and Keller, 1995).
13. Energy in ecological systems:
• The first law of thermodynamics, states that energy
may be transformed from one type into another but
is neither created nor destroyed.
• According to the second law of thermodynamics, no
process involving an energy transformation will
spontaneously occur, unless there is a degradation of
the energy from a concentrated form into a
dispersed form.
• Ecosystems and organisms are, accordingly open,
non-equilibrium, thermodynamic systems that
exchange energy and matter with the environment
continuously.
14. Energy flow
• Energy flow is the movement of energy through an
ecosystem – from the external environment through
a series of organisms and back to the external
environment.
• One path is energy fixed by organisms, other path is
heat transferred by the air or water currents or by
convention through soils and sediments and warms
lining things.
• For example if warm air passes over a forest, heat
energy is transferred from the air to the land and to
the organisms.
17. General relation between biomass (B)
and net production (NP).
• B2 = B1 + NP Equation 1
• NP = B2 - B1 Equation 2
• Where B2 is the biomass at the end of the time period;
B1 is the amount of biomass at the beginning of the
time period and NP is the change in biomass during the
time period. The general production equations are:
• GP = NP + R Equation 3
• NP = GP – R Equation 4
• Where GP is the gross production; NP the net
production and R is respiration.
18. Energy Efficiency and Transfer
Efficiency
• Energy flow in an ecosystem is the flow from one tropic
level to the other.
• While energy is getting transferred there is a need for
us to understand the efficiency of flow.
• Transfer of matter and energy to next tropic level is
considered as low efficient process.
• The rule of thumb for ecological trophic energy
efficiency is not more than 90% of all energy
transferred between trophic levels is lost as heat.
• Hence 10% energy and transfer rule was depicted. This
can be explained with the help of an ecological
pyramid
19. Ten % energy and transfer rule Lindemann (1942) has given ten percent law
for the transfer of energy from one tropic level to the next. According to the
law, during the transfer of organic food from one tropic level to the other
only 10 percent of organic matter is stored as flesh and the remaining is lost
during transfer or broke down during respiration process.
21. Types of pyramids
• Ecological pyramids is a graphical presentation of relation
between numbers, biomass and energy content of the
primary producers, consumers of first and second orders
and so on to top carnivores in the ecosystem. These are of
three types of ecological pyramids
• 1. Pyramid of numbers: It shows the number of organisms
at each trophic level (number/m2).
• 2. Pyramid of biomass: It shows the total dry weight or any
other suitable measure of the total amount of living matter
(g/m2).
• 3. Pyramid of energy: It shows the amount of energy flow
and/or productivity at successive trophic levels
(calories/m2/year).
22. A. Pyramid of numbers, B. Pyramid of
Biomass, C. Pyramid of Energy
23. Succession
• Ecosystem changes over time and space, then areas without
life on earth can be filled with living beings. There are two
stages of succession .
• Primary succession which is an initial establishment and
development of the ecosystem. Forests that develop on new
lava flows or at the edge of a retreating glacier are examples
of primary succession.
• Secondary succession is a reestablishment of an ecosystem.
In secondary succession, there are remnants of a previous
biological community, including such things as organic
matter and seeds in the soil of a forest. By contrast, in
primary succession such remnants are non-existent or
negligible. A forest that develops on an abandoned pasture
or one that grows after a flood or fire is an example of
secondary succession.
24. Ecological Footprint:
• The ecological footprint measures the demand upon our
natural resources and our available bio-capacity to generate
resources and provide services.
• A survey is made in assessing the biologically productive land
and marine area required to generate the enough resources
for growing population and also work out the corresponding
waste.
• At the end of the survey the data is categorized for food,
carbon, housing, goods and services along with level of
consumption that indicates total footprint number to sustain
worlds population.
• Now a days, ecological footprint is called as indicator of
environmental sustainability.
27. Examples:• Taiga Ecosystems:
Forest ecosystem
In the far northern regions of the world. Also called boreal forests,
Consist mainly of evergreen, coniferous trees.
• Desert Ecosystems:
Sparse vegetation,
Number of insects and animals is also relatively limited.
Deserts aren’t necessarily hot; they can lie in temperate zones as
well.
Nor must they be sandy; many deserts feature rock floors.
• Tundra Ecosystems:
Located in polar regions or on the tops of high mountains, are
frozen and snow-covered most of the year.
Life is hard in these white, treeless swaths, but during the brief
summer, snows may melt enough to expose lichens or small
wildflowers and attract migrating birds.
28. • A riparian zone or riparian area is the interface
between land and a river or stream.
Plant habitats and communities along the river
margins and banks are called riparian vegetation,
characterized by hydrophilic plants.
• The littoral zone is the part of a sea, lake or river that
is close to the shore.
In coastal environments the littoral zone extends
from the high water mark, which is rarely inundated,
to shoreline areas that are permanently submerged.
29. • Coral Reefs:
Coral reefs are often referred to as the“rainforests of the
ocean” because these ecosystems team with life -- an
estimated one-quarter of marine species rely on them
for food or shelter.
In addition to corals and brightly-colored fish, sponges,
sea anemones, sea urchins make their homes in coral
reefs.
30.
31. THANK YOU
I bequeath myself to the dirt to grow from the grass I
love, If you want me again look for me under your
boot-soles.
- Walt Whitman