Environmental issues
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We are a social species that shapes the ecosystem through our decisions and values, which are reflected in environmental issues like pollution, deforestation, and overpopulation that need solutions. Environmental laws regulate human impacts on wildlife through prohibitions, limits, and conservation of natural resources, while ensuring research and public awareness of ecology.
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Biodiversity and indicators of climate change
This document discusses biodiversity indicators of climate change in coastal and marine environments in India. It outlines several macro-level climate change indicators that are monitored using remote sensing tools, including rising temperatures, sea level rise, and changes in ocean chemistry and coastal geomorphology. It then describes various coastal and marine habitats that are vulnerable to climate change impacts, such as coral reefs, mangroves, lagoons, estuaries, mudflats, and islands. Specific impacts to these habitats include coral bleaching, changes in mangrove community composition and zonation, and loss of islands. Case studies on marine turtles and the Sunderbans reserve demonstrate recorded and projected climate change impacts.
Effect of climate change on biodiversity and ecosystems
Climate change is causing problems like loss of glaciers, decreased ocean salinity, and changes to ocean currents and habitats. Warmer temperatures allow pine beetles to survive winter and devastate forests, while increased sea temperatures can cause coral bleaching and ecosystem death due to lack of coral. Decreased salinity ruins habitats and causes species die-offs. Ecologically rich areas like the Great Barrier Reef and Wet Tropics of Australia and New Zealand are at serious risk of biodiversity loss due to extreme weather. Once affected, coral reefs and tropical areas can take a long time to recover and may lose many species. Humans rely on surrounding ecosystems for agriculture and survival, and climate change threatens food webs and
Terrestrial Biodiversity (Sustainable Development)
Explanation about terrestrial biodiversity with relationship of Goals 15 of sustainable development by United Nation
Vulnerability of lake ecosystems to species invasions in Washington
Presented by Julian D. Olden at the Annual Meeting of the Washington Lake Protection Association (2008)
Biodiversity and Climate Change: Avenues for Adaptation
Biodiversity and climate change - Avenues for adaptations by Sarath Ekanayake discusses how biodiversity in Sri Lanka provides essential services but is threatened by climate change, and outlines strategies to help biodiversity adapt. Sri Lanka has a great diversity of ecosystems and species, and biodiversity underpins the country's economy, food/water security, and tourism. However, climate change is causing issues like increased flooding and drought that impact forests, agriculture, and human-wildlife conflict. The document recommends identifying vulnerable biodiversity, reducing non-climate pressures, and enhancing resilient landscapes through actions like conserving forests, controlling fires, and accommodating wildlife in urban areas to help biodiversity adapt to climate change impacts.
The future biogeography of freshwater fishes
This document discusses the threats to global freshwater fish biodiversity and how the biogeography of freshwater fishes has changed due to human activities. It notes that over a third of freshwater fish species are threatened with extinction due to habitat loss, pollution, overexploitation, invasive species, and climate change. Historically, river basins formed isolated areas for fish populations but humans have increased connectivity through activities like shipping, bait bucket releases, and transport of fish for sport fishing and aquaculture. This has challenged conservation efforts by changing the historical biogeography of native fishes through invasions. Ecologists now need to reconcile native fish distributions with expanding invasive species to effectively conserve freshwater fish diversity.
Marine biodiversity
The document discusses marine plant diversity. It notes that oceans occupy 70% of the Earth and contain over 5 million unclassified plant species. Marine plants include sea grasses and algae, which have a variety of forms and play an important role in the ecosystem by producing oxygen and providing nutrients. However, human activities like pollution, development, and climate change are threatening marine plant biodiversity by destroying habitats and accelerating extinction rates. International agreements have sought to promote more sustainable practices and conservation of biological diversity in the oceans.
Biodiversity and climate change
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.
Recommended
Biodiversity and indicators of climate change
This document discusses biodiversity indicators of climate change in coastal and marine environments in India. It outlines several macro-level climate change indicators that are monitored using remote sensing tools, including rising temperatures, sea level rise, and changes in ocean chemistry and coastal geomorphology. It then describes various coastal and marine habitats that are vulnerable to climate change impacts, such as coral reefs, mangroves, lagoons, estuaries, mudflats, and islands. Specific impacts to these habitats include coral bleaching, changes in mangrove community composition and zonation, and loss of islands. Case studies on marine turtles and the Sunderbans reserve demonstrate recorded and projected climate change impacts.
Effect of climate change on biodiversity and ecosystems
Climate change is causing problems like loss of glaciers, decreased ocean salinity, and changes to ocean currents and habitats. Warmer temperatures allow pine beetles to survive winter and devastate forests, while increased sea temperatures can cause coral bleaching and ecosystem death due to lack of coral. Decreased salinity ruins habitats and causes species die-offs. Ecologically rich areas like the Great Barrier Reef and Wet Tropics of Australia and New Zealand are at serious risk of biodiversity loss due to extreme weather. Once affected, coral reefs and tropical areas can take a long time to recover and may lose many species. Humans rely on surrounding ecosystems for agriculture and survival, and climate change threatens food webs and
Terrestrial Biodiversity (Sustainable Development)
Explanation about terrestrial biodiversity with relationship of Goals 15 of sustainable development by United Nation
Vulnerability of lake ecosystems to species invasions in Washington
Presented by Julian D. Olden at the Annual Meeting of the Washington Lake Protection Association (2008)
Biodiversity and Climate Change: Avenues for Adaptation
Biodiversity and climate change - Avenues for adaptations by Sarath Ekanayake discusses how biodiversity in Sri Lanka provides essential services but is threatened by climate change, and outlines strategies to help biodiversity adapt. Sri Lanka has a great diversity of ecosystems and species, and biodiversity underpins the country's economy, food/water security, and tourism. However, climate change is causing issues like increased flooding and drought that impact forests, agriculture, and human-wildlife conflict. The document recommends identifying vulnerable biodiversity, reducing non-climate pressures, and enhancing resilient landscapes through actions like conserving forests, controlling fires, and accommodating wildlife in urban areas to help biodiversity adapt to climate change impacts.
The future biogeography of freshwater fishes
This document discusses the threats to global freshwater fish biodiversity and how the biogeography of freshwater fishes has changed due to human activities. It notes that over a third of freshwater fish species are threatened with extinction due to habitat loss, pollution, overexploitation, invasive species, and climate change. Historically, river basins formed isolated areas for fish populations but humans have increased connectivity through activities like shipping, bait bucket releases, and transport of fish for sport fishing and aquaculture. This has challenged conservation efforts by changing the historical biogeography of native fishes through invasions. Ecologists now need to reconcile native fish distributions with expanding invasive species to effectively conserve freshwater fish diversity.
Marine biodiversity
The document discusses marine plant diversity. It notes that oceans occupy 70% of the Earth and contain over 5 million unclassified plant species. Marine plants include sea grasses and algae, which have a variety of forms and play an important role in the ecosystem by producing oxygen and providing nutrients. However, human activities like pollution, development, and climate change are threatening marine plant biodiversity by destroying habitats and accelerating extinction rates. International agreements have sought to promote more sustainable practices and conservation of biological diversity in the oceans.
Biodiversity and climate change
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.
Effect of climate change on biodiversity and ecosystems
Climate change is causing problems like loss of glaciers, decreased ocean salinity, and changes to ocean currents and habitats. Warmer temperatures allow pine beetles to devastate forests without being killed off in winter. Coral bleaching and ecosystem death can occur as sea temperatures increase, and lower salinity ruins habitats. Ecologically rich areas like the Great Barrier Reef and Wet Tropics are at serious risk of biodiversity loss due to extreme weather. Once affected, coral reefs and tropical areas can take a long time to recover and may experience continued species loss. Humans and ecosystems are impacted by species loss through disrupted agriculture and food webs.
THREATS AND CONSERVATION OF TERESTIAL AND AQUATIC BIODIVERSITY
This document provides a summary of threats to terrestrial and aquatic biodiversity and approaches for conservation. It discusses how human activities like habitat loss, pollution, overexploitation are reducing biodiversity on land and in water. Specific threats include deforestation, agricultural intensification, urban expansion, invasive species, climate change, and pollution from development. The document then outlines approaches to conserve biodiversity like protecting habitats through reserves, restoring degraded areas, sustainable land and water management, reducing pollution, and increasing environmental awareness.
Habitate destruction
Habitat destruction occurs when a habitat is damaged or destroyed, reducing the environment's capacity to support the species living there. Key causes of habitat destruction include increasing food production, mining, forest fires, overgrazing, and urban development. The effects are widespread and include animal extinction, disruption of food chains, loss of resources, and increased pollution and climate change. Conservation efforts aim to protect habitats through limiting disruptive activities, monitoring environmental quality, and protecting coastal and marine areas. However, fully protecting the complex, variable environment remains a significant challenge.
Threats to marine biodiversity
Threats to marine biodiversity include climate change, overfishing, habitat damage, pollution, and ecosystem alterations. Climate change causes increased ocean temperatures and acidity. Overfishing depletes fish populations and damages habitats. Bottom trawling severely damages coral reefs and seafloors. Pollution such as nutrients, plastics, noise, and chemicals harm marine life. Introduced species alter ecosystems. Protections include limiting fishing and gear, protecting habitats through refuges and preserves, reducing pollution, and international agreements on climate change.
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Estuaries1
Estuaries are semi-enclosed bodies of water where freshwater from rivers meets and mixes with saltwater from the ocean. They represent a close interaction between land and sea and are among the most productive environments on Earth. Estuaries contain distinct communities that are adapted to the mixing of fresh and salt water and the tidal fluctuations, including open water, mudflats, salt marshes, and mangrove forests. Organisms in the intertidal zone between high and low tide lines have adaptations to withstand periods of wetness and dryness from the tides.
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CONSERVING BIODIVERSITY AMIDST CLIMATE CHANGE
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United Nations Regional Champion for Disaster Risk Reduction and Climate Change Adaptation
Proximate Causes of Biodiversity Loss
Habitat destruction, overexploitation, invasive species, pollution, and climate change are the five main proximate causes of biodiversity loss. Habitat destruction has affected over 85% of threatened species through activities like urbanization and agriculture. Overexploitation harvests plants and animals faster than their reproduction rates can keep up. Invasive species harm native species through competition, disease transmission, and predation. Pollution disrupts ecosystems through contamination of water, soil and air. Climate change alters habitats and some species may be unable to adapt quickly enough to its effects, potentially leading to the extinction of 15-37% of species by 2050.
Direct And Indirect Drivers of Biodiversity
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Loss of biodiversity
The document discusses the loss of biodiversity due to various human activities. It defines biodiversity as the variety of life on Earth, including diversity within and between species and ecosystems. Key threats to biodiversity discussed include overexploitation of species, invasive alien species, climate change, habitat loss, pollution, and natural hazards. Managing biodiversity loss requires quantifying diversity and understanding which species losses will have the most harmful impacts on ecosystems.
Management of wetlands by biomanipulation studies
This document discusses the management of wetlands through biomanipulation. It begins by outlining the need for wetland management as natural wetlands have been altered by pollution, especially excess nutrients. It then describes the effects of increased nutrients and turbidity, which can include toxic algal blooms. The document introduces biomanipulation as a tool to improve water quality by adjusting the biological community. Specific mechanisms discussed include using fish and zooplankton to control phytoplankton levels and promote macrophyte growth. Criteria for successful biomanipulation applications include shallow lake areas less than 4 hectares with dominant Daphnia zooplankton populations.
Freshwater protected areas and defining a conservation blueprint for desert f...
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This document summarizes a study that aimed to identify priority areas for conserving freshwater fish diversity in the Lower Colorado River Basin. The study developed species distribution models for 40 native and non-native fish species. Using these models and metrics of taxonomic, functional, and phylogenetic diversity, a conservation prioritization algorithm identified the top conservation priorities. The study found opportunities for conservation but also trade-offs between different diversity targets and challenges from contemporary and future threats.Biodiversityconcepts in biodiversity and factors influencing aquatic biodiver...
Biodiversityconcepts in biodiversity and factors influencing aquatic biodiver...College of Fisheries, KVAFSU, Mangalore, Karnataka
The document discusses biodiversity, defining it as the variety of life on Earth including diversity within and between species and ecosystems. It describes the different types of biodiversity as genetic, species, and ecosystem diversity. Aquatic biodiversity is specifically the variety of freshwater and marine lifeforms and ecosystems. The document outlines factors threatening biodiversity like habitat loss, pollution, and climate change and their impacts. Threats to aquatic biodiversity include overexploitation of resources, pollution, and destruction of natural habitats from urbanization.Oceans are at risk
Oceans are at risk due to threats like overfishing, pollution, climate change, and plastic debris. These threats endanger many ocean species such as marine turtles, dolphins, seahorses, sharks, monk seals, and whales. Unless action is taken to protect endangered marine species, many may not survive for future generations.
Resilience v3
This document discusses resilience challenges for five key landscapes in the North East region of Australia: urban centres, lifestyle, agricultural productivity, forests, and alpine areas. For each landscape, it identifies challenges related to issues like land use planning, population changes, climate variability, fire management, and pest impacts. It asks readers to comment on an online forum if any resilience challenges are missing from the list.
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its explains biodiversity and different types of biodiversity also habitat loss and ho it occurs and its effects and causes
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The document discusses how IUCN addresses the impacts of climate change on biodiversity through various programs. It outlines IUCN's work in conserving biodiversity at species, genetic, and ecosystem levels. It also discusses IUCN's initiatives related to climate change adaptation and mitigation like ecosystem-based adaptation and guidelines for precautionary principles. Furthermore, it mentions how climate change threatens biodiversity through habitat loss, range shifts, and impacts on life cycles and physiology. It provides examples of climate change impacts and threats to species in different parts of the world.
Biodiversity and Evolution
Causes of Species Extinction
There are several causes of species extinction according to the document. Hunting, trapping, habitat destruction, pollution, and overharvesting can all directly cause populations to decline and potentially go extinct. Indirect causes of extinction mentioned include climate change, water and air pollution, and human activities that destroy coastal and forest habitats. As human populations and activities increase, they place greater pressure on global biodiversity by contributing to problems like deforestation, pollution, and overexploitation of natural resources. Maintaining sustainable practices is important to prevent further species losses.
Threats to marine biodiversity
There are several major threats to marine biodiversity according to the document. These include overexploitation of marine resources through overfishing and recreational fishing, pollution from various sources, habitat destruction through activities like coastal development, and the introduction of invasive species. Climate change is also a growing threat as it can cause rising water temperatures, acidification, and sea level rise. If left unaddressed, these threats will have severe economic, social, and environmental consequences.
VCE Environmental Science Unit 3: Biodiversity and conservation management.
Learning intentions:
To understand how biodiversity is identified and managed in Australia.
Success Criteria:
Be able to apply categories of conservation status and describe how degree of threat is determined.
Know the three biodiversity categories and how they relate to each other.
Be able to explain how remnant vegetation, corridors and conservation reserves can be used to support biodiversity.
Describe Global, Australian and Victorian legislation and conventions and a current biodiversity issue which refers to each.
Posting Animals.pdf
Wildlife plays a crucial role in maintaining the balance of our ecosystems. Each species, no matter how big or small, contributes to the intricate web of life.
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Effect of climate change on biodiversity and ecosystems
Climate change is causing problems like loss of glaciers, decreased ocean salinity, and changes to ocean currents and habitats. Warmer temperatures allow pine beetles to devastate forests without being killed off in winter. Coral bleaching and ecosystem death can occur as sea temperatures increase, and lower salinity ruins habitats. Ecologically rich areas like the Great Barrier Reef and Wet Tropics are at serious risk of biodiversity loss due to extreme weather. Once affected, coral reefs and tropical areas can take a long time to recover and may experience continued species loss. Humans and ecosystems are impacted by species loss through disrupted agriculture and food webs.
THREATS AND CONSERVATION OF TERESTIAL AND AQUATIC BIODIVERSITY
This document provides a summary of threats to terrestrial and aquatic biodiversity and approaches for conservation. It discusses how human activities like habitat loss, pollution, overexploitation are reducing biodiversity on land and in water. Specific threats include deforestation, agricultural intensification, urban expansion, invasive species, climate change, and pollution from development. The document then outlines approaches to conserve biodiversity like protecting habitats through reserves, restoring degraded areas, sustainable land and water management, reducing pollution, and increasing environmental awareness.
Habitate destruction
Habitat destruction occurs when a habitat is damaged or destroyed, reducing the environment's capacity to support the species living there. Key causes of habitat destruction include increasing food production, mining, forest fires, overgrazing, and urban development. The effects are widespread and include animal extinction, disruption of food chains, loss of resources, and increased pollution and climate change. Conservation efforts aim to protect habitats through limiting disruptive activities, monitoring environmental quality, and protecting coastal and marine areas. However, fully protecting the complex, variable environment remains a significant challenge.
Threats to marine biodiversity
Threats to marine biodiversity include climate change, overfishing, habitat damage, pollution, and ecosystem alterations. Climate change causes increased ocean temperatures and acidity. Overfishing depletes fish populations and damages habitats. Bottom trawling severely damages coral reefs and seafloors. Pollution such as nutrients, plastics, noise, and chemicals harm marine life. Introduced species alter ecosystems. Protections include limiting fishing and gear, protecting habitats through refuges and preserves, reducing pollution, and international agreements on climate change.
NE Mosaic approach: Managing habitats for species - introduction
Introduction to the Mosaic approach: A series of visual, interactive guides designed to help land managers manage habitats in a way that supports multiple species by developing “mosaics” of different environmental features at a landscape scale, within a range of habitat types.
Estuaries1
Estuaries are semi-enclosed bodies of water where freshwater from rivers meets and mixes with saltwater from the ocean. They represent a close interaction between land and sea and are among the most productive environments on Earth. Estuaries contain distinct communities that are adapted to the mixing of fresh and salt water and the tidal fluctuations, including open water, mudflats, salt marshes, and mangrove forests. Organisms in the intertidal zone between high and low tide lines have adaptations to withstand periods of wetness and dryness from the tides.
Fisheries brochure with rf log
Climate variability and change poses challenges for livelihoods and ecosystems in Uganda. About 30% of Ugandans depend on agriculture, forestry, livestock, and fisheries, which are sensitive to climate fluctuations. 20% of Uganda contains lakes, rivers, and wetlands that provide important resources but are vulnerable to climate impacts. Changes in temperature, precipitation, and other factors can affect water levels, circulation, species composition, and food webs in aquatic systems. Local communities have adapted practices like diversifying livelihoods, but coordinated efforts are needed to strengthen resilience through policies, awareness-raising, and capacity building. The National Fisheries Resources Research Institute is collecting data on climate impacts in lakes Wamala and Kawi to
CONSERVING BIODIVERSITY AMIDST CLIMATE CHANGE
CONSERVING BIODIVERSITY AMIDST CLIMATE CHANGE
SEN. LOREN LEGARDA
United Nations Regional Champion for Disaster Risk Reduction and Climate Change Adaptation
Proximate Causes of Biodiversity Loss
Habitat destruction, overexploitation, invasive species, pollution, and climate change are the five main proximate causes of biodiversity loss. Habitat destruction has affected over 85% of threatened species through activities like urbanization and agriculture. Overexploitation harvests plants and animals faster than their reproduction rates can keep up. Invasive species harm native species through competition, disease transmission, and predation. Pollution disrupts ecosystems through contamination of water, soil and air. Climate change alters habitats and some species may be unable to adapt quickly enough to its effects, potentially leading to the extinction of 15-37% of species by 2050.
Direct And Indirect Drivers of Biodiversity
A power point to practice working out whether the drivers that change biodiversity are direct or indirect, as described in the Millennium Ecosystem Assessment
Loss of biodiversity
The document discusses the loss of biodiversity due to various human activities. It defines biodiversity as the variety of life on Earth, including diversity within and between species and ecosystems. Key threats to biodiversity discussed include overexploitation of species, invasive alien species, climate change, habitat loss, pollution, and natural hazards. Managing biodiversity loss requires quantifying diversity and understanding which species losses will have the most harmful impacts on ecosystems.
Management of wetlands by biomanipulation studies
This document discusses the management of wetlands through biomanipulation. It begins by outlining the need for wetland management as natural wetlands have been altered by pollution, especially excess nutrients. It then describes the effects of increased nutrients and turbidity, which can include toxic algal blooms. The document introduces biomanipulation as a tool to improve water quality by adjusting the biological community. Specific mechanisms discussed include using fish and zooplankton to control phytoplankton levels and promote macrophyte growth. Criteria for successful biomanipulation applications include shallow lake areas less than 4 hectares with dominant Daphnia zooplankton populations.
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This document summarizes a study that aimed to identify priority areas for conserving freshwater fish diversity in the Lower Colorado River Basin. The study developed species distribution models for 40 native and non-native fish species. Using these models and metrics of taxonomic, functional, and phylogenetic diversity, a conservation prioritization algorithm identified the top conservation priorities. The study found opportunities for conservation but also trade-offs between different diversity targets and challenges from contemporary and future threats.Biodiversityconcepts in biodiversity and factors influencing aquatic biodiver...
Biodiversityconcepts in biodiversity and factors influencing aquatic biodiver...College of Fisheries, KVAFSU, Mangalore, Karnataka
The document discusses biodiversity, defining it as the variety of life on Earth including diversity within and between species and ecosystems. It describes the different types of biodiversity as genetic, species, and ecosystem diversity. Aquatic biodiversity is specifically the variety of freshwater and marine lifeforms and ecosystems. The document outlines factors threatening biodiversity like habitat loss, pollution, and climate change and their impacts. Threats to aquatic biodiversity include overexploitation of resources, pollution, and destruction of natural habitats from urbanization.Oceans are at risk
Oceans are at risk due to threats like overfishing, pollution, climate change, and plastic debris. These threats endanger many ocean species such as marine turtles, dolphins, seahorses, sharks, monk seals, and whales. Unless action is taken to protect endangered marine species, many may not survive for future generations.
Resilience v3
This document discusses resilience challenges for five key landscapes in the North East region of Australia: urban centres, lifestyle, agricultural productivity, forests, and alpine areas. For each landscape, it identifies challenges related to issues like land use planning, population changes, climate variability, fire management, and pest impacts. It asks readers to comment on an online forum if any resilience challenges are missing from the list.
extinction of species loss of habitat and biodiversity types of biodiversity ...
its explains biodiversity and different types of biodiversity also habitat loss and ho it occurs and its effects and causes
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The document discusses how IUCN addresses the impacts of climate change on biodiversity through various programs. It outlines IUCN's work in conserving biodiversity at species, genetic, and ecosystem levels. It also discusses IUCN's initiatives related to climate change adaptation and mitigation like ecosystem-based adaptation and guidelines for precautionary principles. Furthermore, it mentions how climate change threatens biodiversity through habitat loss, range shifts, and impacts on life cycles and physiology. It provides examples of climate change impacts and threats to species in different parts of the world.
Biodiversity and Evolution
Causes of Species Extinction
There are several causes of species extinction according to the document. Hunting, trapping, habitat destruction, pollution, and overharvesting can all directly cause populations to decline and potentially go extinct. Indirect causes of extinction mentioned include climate change, water and air pollution, and human activities that destroy coastal and forest habitats. As human populations and activities increase, they place greater pressure on global biodiversity by contributing to problems like deforestation, pollution, and overexploitation of natural resources. Maintaining sustainable practices is important to prevent further species losses.
Threats to marine biodiversity
There are several major threats to marine biodiversity according to the document. These include overexploitation of marine resources through overfishing and recreational fishing, pollution from various sources, habitat destruction through activities like coastal development, and the introduction of invasive species. Climate change is also a growing threat as it can cause rising water temperatures, acidification, and sea level rise. If left unaddressed, these threats will have severe economic, social, and environmental consequences.
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NE Mosaic approach: Managing habitats for species - introduction
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Freshwater protected areas and defining a conservation blueprint for desert f...
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Biodiversityconcepts in biodiversity and factors influencing aquatic biodiver...
extinction of species loss of habitat and biodiversity types of biodiversity ...
extinction of species loss of habitat and biodiversity types of biodiversity ...
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Similar to Environmental issues
VCE Environmental Science Unit 3: Biodiversity and conservation management.
Learning intentions:
To understand how biodiversity is identified and managed in Australia.
Success Criteria:
Be able to apply categories of conservation status and describe how degree of threat is determined.
Know the three biodiversity categories and how they relate to each other.
Be able to explain how remnant vegetation, corridors and conservation reserves can be used to support biodiversity.
Describe Global, Australian and Victorian legislation and conventions and a current biodiversity issue which refers to each.
Posting Animals.pdf
Wildlife plays a crucial role in maintaining the balance of our ecosystems. Each species, no matter how big or small, contributes to the intricate web of life.
Biodiversity conservation
This document discusses biodiversity and the threats facing it. It defines biodiversity as including all organisms, species, populations, and their genetic variation. Biodiversity exists at the genetic, species, and ecosystem levels. The document estimates that there are millions of species but many remain undiscovered. Natural processes can cause extinction, but the current rate is much higher than in the past due to human threats like habitat destruction, overexploitation, invasive species, pollution, climate change and more. India is a megadiverse country facing severe threats and has established protected areas and laws to promote conservation.
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Edangered species
An endangered species is a species facing a high risk of extinction. There are currently over 3070 endangered animal species and 2655 endangered plant species worldwide. The main cause of species endangerment and extinction is habitat destruction and fragmentation due to human activities like pollution, deforestation, and destruction of coral reefs. When a species goes extinct it can disrupt the balance of the entire ecosystem. International efforts aim to protect endangered species through conservation programs and biodiversity action plans.
Zoology Seminar 2011
The document summarizes a zoology seminar on biodiversity and conservation. It defines biodiversity and describes the different levels of biological diversity. It then discusses threats to biodiversity such as habitat loss and overexploitation. The document advocates for biodiversity conservation and outlines several steps to conserve biodiversity, including protecting ecosystems, sustainable agriculture, and combating climate change.
Human impact on biodiversity
This document discusses human impact on biodiversity. It begins with defining biodiversity as the variety of life on Earth, including diversity within and between species and ecosystems. It then outlines threats to biodiversity from habitat loss, pollution, overexploitation, invasive species, and climate change. The document emphasizes that biodiversity provides many benefits to humans through resources like food and medicine, as well as ecological functions. However, biodiversity loss is now occurring rapidly due to human activities. Conservation efforts are needed to protect biodiversity through both on-site and off-site methods.
Biodiversity and wildlife
The document discusses biodiversity and wildlife conservation. It defines biodiversity as the variety of life forms on Earth, including species, ecosystems, and genes. There are three main types of biodiversity: species diversity, ecosystem diversity, and genetic diversity. Biodiversity provides both consumptive value through resources like food and medicine, and non-consumptive value through benefits like recreation and research. Wildlife faces threats from habitat loss, overexploitation, invasive species, pollution, climate change, and more. India is home to significant biodiversity and many endangered species. The government plays an important role in wildlife conservation through laws and programs like Project Tiger to protect threatened species and their habitats.
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This document discusses the application of eco-informatics in wildlife conservation and management. Eco-informatics involves gathering, integrating, and disseminating ecological knowledge through information systems. Wildlife management aims to protect endangered species and habitats while also managing game species and agricultural animals. It involves habitat restoration, population control through regulated hunting or translocation, and protecting critical habitats and endangered species. The document also provides examples of how eco-informatics is applied to study soil contamination, model agricultural systems, and facilitate collaborative environmental research.
Biodiversity conservation
The document discusses biodiversity hotspots, with a focus on India and the state of Kerala. It defines genetic, species, and ecosystem diversity, and explains the criteria for designating areas as biodiversity hotspots. It notes that 25 major hotspots represent only 1.4% of the earth's land but contain 44% of plant and 35% of terrestrial vertebrate species. It provides details on the biodiversity found in India, particularly in Kerala, including the high levels of endemism among plants and animals. It also discusses the economic value of ecosystems in Kerala and conservation efforts underway.
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what is protected area,biosphere reserve,wildlife sanctuary,national park of India, environmental legislation,sacred grove
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Habitat destruction, overexploitation, poaching, and climate change are major threats to wildlife. Habitat destruction decreases the areas where wildlife can live and fragments habitats. Overexploitation harvests animals and plants faster than populations can recover. Poaching targets endangered species for illegal wildlife trade. Climate change leads to habitat destruction and impacts species ranges through changing conditions. Conservation efforts include afforestation, controlling fires, regulating forest resource use, and developing protected areas while controlling hunting and overexploitation to preserve biodiversity.
Biodiversity presentation copy
Biodiversity refers to the variety of plant and animal species in a particular region. Each species is interconnected and dependent on others for survival. Loss of biodiversity threatens ecosystem balance. Key threats include habitat loss, pollution, overexploitation, introduction of invasive species, and climate change. Areas with exceptionally high biodiversity that are also under threat, like the Eastern Himalayas and Western Ghats in India, are considered biodiversity hotspots.
BIODIVERSITY AND EVOLUTION.ppt
A balanced ecosystem is one where all living and nonliving things interact successfully. When species diversity is reduced, it can negatively impact the ecosystem's ability to sustain remaining species and perform important functions. Loss of biodiversity threatens the healthy functioning of ecosystems.
yogesh kumar
The document discusses biodiversity and conservation. It defines biodiversity as the variety of life forms at genetic, species, and ecosystem levels. It notes that biodiversity is highest in the tropics and identifies three levels - genetic, species, and ecological diversity. Major threats to biodiversity include habitat loss, overexploitation, invasive species, and co-extinctions. Strategies for conservation include both in-situ methods like protected areas and ex-situ approaches such as seed banks and zoos. International agreements aim to reduce biodiversity loss globally and nationally.
Eco Systems and their relation with tourism
The document discusses various ecosystems and their importance for tourism, including wetlands, coral reefs, and mangroves. It notes that wetlands provide important ecological functions and that their management requires a multidisciplinary perspective. Coral reefs are described as highly diverse ecosystems that are home to 25% of marine fish species but are severely threatened by pollution, climate change, and other human impacts. Mangroves are introduced as coastal forests adapted to tidal conditions that provide habitat for many species.
Enviroment project
Endangered species are at risk of extinction due to threats like habitat loss, hunting, and climate change. Conservation aims to protect biodiversity by preserving habitats, restoring degraded areas, and protecting species. Some common conservation actions include habitat preservation, restoration, captive breeding programs, anti-poaching measures, and wildlife corridors. Individuals can help endangered species by reducing their environmental impact, supporting conservation organizations, and volunteering.
Biodiversity
Biodiversity refers to the variety of genes, species, and ecosystems on Earth. It is divided into genetic, species, and ecological diversity. Genetic diversity refers to variety within a species. Species diversity measures variety between species in a region. Ecological diversity looks at diversity at the community and ecosystem levels. Biodiversity provides humans with resources and is declining at an alarming rate due to habitat loss, overexploitation, invasive species, and co-extinctions. Conservation efforts focus on in situ protection of habitats and species in their natural environment and ex situ conservation of threatened species in special care units.
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3. deforestation
Deforestation refers to the destruction of primary or old-growth forests, which are biologically diverse with a full canopy structure and multiple layers. Secondary forests that regrow after destruction have less diversity and a less developed canopy, with more light reaching the ground. Deforestation reduces forest areas worldwide and impacts biodiversity.
3. deforestation
Deforestation refers to the destruction of primary or old-growth forests, which are biologically diverse with a full canopy structure and multiple layers. Secondary forests that regrow after destruction have less diversity and a less developed canopy, with more light reaching the ground. Deforestation reduces forest area and biodiversity globally.
Soil erosion
The document discusses various causes of soil erosion including depletion of minerals from overproduction, loss of organic matter from disturbing natural balances through frequent planting and harvesting, and erosion from poor farming methods. Soil erosion can lead to water problems as well by depleting groundwater through overconsumption and heavy runoff reducing water supply. Proper management of soil and plant cover is needed to prevent issues like droughts and floods.
Soil pollution
The document discusses various causes of soil erosion including depletion of minerals from overproduction, loss of organic matter from disturbing natural balances through frequent planting and harvesting, and erosion from poor farming methods. Soil erosion can lead to water problems as well by depleting groundwater through overconsumption and heavy runoff reducing water supply. Proper management of soil and plant cover is needed to prevent issues like droughts and floods.
Overpopulation
The world population has grown exponentially from 1 billion in 1800 to over 7 billion today, overwhelming the planet's limited resources. Species are disappearing 1,000 times faster than normal background rates due to growing human numbers and their increasing demand for water, land, trees, and fossil fuels. At the current pace, the global population is projected to reach 8 billion by 2020 and 9 billion by 2050, straining the planet further unless actions are taken to decrease population growth rates.
Forests
The forest is a complex ecosystem consisting of trees and supporting many life forms. Trees clean the air, cool temperatures, and absorb sound. Forests in the Philippines include primary forests in lowlands as well as secondary forests developed through illegal logging or burning. However, forests are often misused through unsustainable practices like immature tree cutting, fires, and indiscriminate logging beyond reforestation rates, damaging the ecosystem. Forests provide resources like lumber, paper, and other products while supporting wildlife.
13. blood
Blood makes up 7% of the human body and contains red blood cells, white blood cells, and platelets suspended in plasma. Red blood cells carry oxygen throughout the body using hemoglobin, while white blood cells defend against pathogens and platelets help with clotting. There are four main blood types - A, B, AB, and O - which are determined by the presence or absence of antigens on red blood cells and the antibodies that correspond. A person's blood type affects their compatibility for receiving or donating blood.
16. common heart problems
Coronary heart disease is caused by plaque buildup in the arteries that supply the heart, reducing blood flow. Risk factors include diabetes, high blood pressure, high cholesterol, smoking, being overweight, and lack of exercise. Common symptoms are chest pain and fatigue. Inflammatory heart diseases like myocarditis, pericarditis, and endocarditis involve inflammation of the heart muscle, surrounding sac, or inner lining from infection. Heart failure occurs when the heart can no longer sufficiently pump blood due to conditions like coronary artery disease or cardiomyopathy, where the heart muscle deteriorates over time.
Smoking and risks_to_the_lungs
This document discusses several lung disorders including chronic bronchitis, emphysema, and lung cancer. Chronic bronchitis causes a persistent cough and mucus production and is often caused by smoking. Emphysema destroys lung tissue and causes shortness of breath. Lung cancer is uncontrolled cell growth in the lungs that can metastasize to other organs. Smoking is a major risk factor for all of these conditions.
15. the heart
The heart is a pear-shaped muscle located in the chest cavity on the left side of the body beneath the ribs. It is divided into four chambers - two upper chambers called atria and two lower chambers called ventricles. The heart continuously pumps oxygen-rich blood throughout the body via a cycle of contraction and relaxation called the heartbeat or cardiac cycle, consisting of systole when the ventricles contract and blood is pumped out, and diastole when the ventricles relax and fill with blood from the atria. The heart works nonstop to supply all parts of the body with blood.
14. pulmonary and systemic circulation
1) The pulmonary circulation carries deoxygenated blood from the heart to the lungs and returns oxygenated blood to the heart.
2) The systemic circulation carries oxygenated blood away from the heart to the body and returns deoxygenated blood to the heart.
3) The pulmonary circuit begins in the right ventricle and ends in the left atrium, while the systemic circuit starts in the left ventricle and ends in the right atrium.
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Environmental issues
- 3. We are a social species. We shape and reshape the ecosystem at will. Our ecosystem reflects our values, attitudes, skills, and knowledge or ignorance behind our decisions.
- 4. Environmental Issues that Need to be Solved pollution deforestation wildlife overpopulati interference on
- 5. awareness and research on acknowledgemen ecology t control of laws environmental health hazards conservation cooperation efforts
- 6. What Environmental Laws Ensure regulation of taking, prohibition of the possessing, selling, and destruction of wildlife exchanging of animal species species limiting the catch and declaration of a regulation of logging hunting season setting aside areas as national parks and ban of deadly weapons wildlife offices
- 7. Conservation water conservatio the use of soil n (controls natural conservatio floods and n (prevents prevents resources to get soil loss) drought) the maximum benefit for the maximum number of
- 8. THANK YOU FOR LISTENING.