Conservation and biodiversity
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Conservation involves protecting and sustainably managing the natural environment and native species. Biodiversity refers to the variety of lifeforms including plants, animals, and microorganisms within ecosystems. Western Australia has high biodiversity with 26 bioregions and thousands of species including over 6,000 types of cryptogams, 80,000 insect species, and 12,000 vascular plants. However, many native species are at risk of extinction due to threats such as introduced species, fire hazards, habitat destruction, salinity, and dieback disease.
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Uses of biodiversity by Md shadab khan
Biodiversity provides essential ecosystem services like maintaining atmospheric gas composition, climate control, pest control, pollination, soil formation and protection, water purification and nutrient cycling. It also helps prevent and mitigate natural disasters by reducing erosion, nutrient loss, landslides, and absorbing flood waters. Biodiversity is an important source of food, medicines, and industrial materials. Many crops and livestock are used globally for food, while medicines like morphine, quinine, and taxol are derived from biological sources. Industrial materials like building materials, fibers, dyes, resins, gums, adhesives, and rubber are obtained from biological organisms. Biodiversity also has aesthetic and cultural benefits through ecotourism,
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http://www.fao.org/asiapacific/events/detail-events/en/c/1262/
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1) Shark finning involves cutting the fins off live sharks and throwing their bodies back into the ocean, where they die a slow death. It is done to supply the demand for shark fin soup, especially in Asian cultures.
2) Laws against shark finning exist in many places but are poorly enforced, and sharks continue to be harvested at unsustainable rates.
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Biodiversity provides essential ecosystem services like maintaining atmospheric gas composition, climate control, pest control, pollination, soil formation and protection, water purification and nutrient cycling. It also helps prevent and mitigate natural disasters by reducing erosion, nutrient loss, landslides, and absorbing flood waters. Biodiversity is an important source of food, medicines, and industrial materials. Many crops and livestock are used globally for food, while medicines like morphine, quinine, and taxol are derived from biological sources. Industrial materials like building materials, fibers, dyes, resins, gums, adhesives, and rubber are obtained from biological organisms. Biodiversity also has aesthetic and cultural benefits through ecotourism,
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1) Shark finning involves cutting the fins off live sharks and throwing their bodies back into the ocean, where they die a slow death. It is done to supply the demand for shark fin soup, especially in Asian cultures.
2) Laws against shark finning exist in many places but are poorly enforced, and sharks continue to be harvested at unsustainable rates.
3) If shark finning continues unabated, it could drive many shark species extinct and have devastating effects on the marine ecosystem.
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The document discusses the issue of overfishing and its negative consequences. It provides background on overfishing, including its definition as catching more fish than can be replaced through natural reproduction. The document outlines some consequences of overfishing like species extinction and decreases in fish sizes. It examines specific examples of overfishing problems like the collapse of Atlantic cod populations. Additionally, the document discusses concepts like bycatch and different fishing methods, and proposes solutions such as no-take zones to help mitigate overfishing.
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Overfishing occurs when more fish are caught than can naturally replenish, threatening the balance of aquatic ecosystems. Methods like bottom trawling are especially destructive as they involve dragging heavy nets along the seafloor and result in substantial unintended bycatch. The effects of overfishing include decreased biodiversity, disruption of food webs and ecosystem balance, destruction of habitats like reefs, and depletion of a major food source that can ruin fishing industries. No-take zones that prohibit fishing have been established in some areas to allow fish populations to recover and ensure long-term prosperity of fishing. Additional measures proposed to combat overfishing include catch limits, improved enforcement, alternative fisheries, and abolishing destructive practices.
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The document summarizes key points from the documentary Seaspiracy about the negative impacts of commercial fishing on marine ecosystems and life. It argues that commercial fisheries are driving marine destruction through overfishing, bycatch that kills millions of sharks, turtles and other species each year, and pollution from abandoned fishing gear. It notes that fishing subsidies could instead end world hunger, and that without top predators like sharks, ocean ecosystems cannot be sustained. The document criticizes certifications like MSC as greenwashing and says current fishing practices will empty the oceans by 2048 if unchanged.
Overfishing2
Overfishing is catching too many fish and depleting fish populations. It occurs in three main ways: harvesting fish before maturity, leaving insufficient adults to reproduce, and overfishing predator species which disrupts ecosystems. Global fish catches peaked in 2006 at 144 million tons but over half of fish stocks are now fully or overexploited. Destructive fishing practices like bottom trawling and cyanide fishing damage ocean habitats while bycatch wastes untargeted species. Overfishing led to the complete collapse of Newfoundland cod fisheries in the 1990s. Bluefin tuna faces extinction due to overfishing and uncertain catch quotas.
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The document discusses the issue of overfishing and its negative impacts. It defines overfishing as catching fish faster than populations can replenish. While the world's oceans could theoretically support four planets' worth of fish, many species have become reduced or extinct due to overfishing. The document also examines fishing down the food chain, bycatch, bottom trawling, and how both overfishing and government subsidies of the fishing industry can harm marine ecosystems.
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Major threats to aquatic biodiversity include habitat loss, invasive species, pollution, climate change, and overexploitation, which are exacerbated by human population growth. The greatest marine biodiversity is found at coral reefs, estuaries, and on the deep ocean floor. While protections for whales have led to recovery of some populations, others are still threatened by illegal hunting. Invasive species like the Asian swamp eel and lionfish degrade ecosystems, while activities such as agriculture, development, and waste dumping pollute waterways and oceans. Climate change poses a growing threat through sea level rise, warming, and acidification. Overfishing has driven many fish species toward extinction.
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The document discusses several issues with overfishing, including depleting fish populations, discarding unwanted catch, and bottom trawling damaging seafloor habitats. It provides examples of overfishing causing the cod population collapse in Canada in 1992, which resulted in economic crisis and job losses. Additionally, it discusses threats from shark finning and issues with aquaculture. Solutions proposed include creating no-take zones to help species regenerate and moving to more sustainable aquaculture practices.
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2) It explores what sustainability means ecologically, in terms of maintaining surplus production and compensatory improvements in fish populations.
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Overfishing occurs when more fish are caught than can naturally replenish, threatening the balance of aquatic ecosystems. Methods like bottom trawling are especially destructive as they involve dragging heavy nets along the seafloor and result in substantial unintended bycatch. The effects of overfishing include decreased biodiversity, disruption of food webs and ecosystem balance, destruction of habitats like reefs, and depletion of a major food source that can ruin fishing industries. No-take zones that prohibit fishing have been established in some areas to allow fish populations to recover and ensure long-term prosperity of fishing. Additional measures proposed to combat overfishing include catch limits, improved enforcement, alternative fisheries, and abolishing destructive practices.
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Overfishing2
Overfishing is catching too many fish and depleting fish populations. It occurs in three main ways: harvesting fish before maturity, leaving insufficient adults to reproduce, and overfishing predator species which disrupts ecosystems. Global fish catches peaked in 2006 at 144 million tons but over half of fish stocks are now fully or overexploited. Destructive fishing practices like bottom trawling and cyanide fishing damage ocean habitats while bycatch wastes untargeted species. Overfishing led to the complete collapse of Newfoundland cod fisheries in the 1990s. Bluefin tuna faces extinction due to overfishing and uncertain catch quotas.
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Overfishing is causing major damage to ocean ecosystems. Trawling fishing methods kill many unintended fish and discard them, while also damaging ocean floors. Popular fish like the Chilean Sea bass are being overfished to the point of endangerment. If overfishing continues at the current rate, experts predict we will deplete all fish stocks by 2048. This is unbalancing ocean environments by reducing predator populations and increasing jellyfish and rays, which leads to more algae blooms and the growth of "dead zones" - areas devoid of life. To ensure a sustainable food source for future generations, we need stronger laws against illegal fishing and overfishing to help reverse some of the damage done to oceans.
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This document discusses ex-situ conservation, which involves removing species from their natural habitats and placing them in human care, such as in zoos, seed banks, and gene banks. Ex-situ conservation is often used as a last resort when populations become too small and are at high risk in their natural environments. While not ideal, ex-situ conservation helps preserve biodiversity through various techniques like captive breeding programs, botanical gardens, and gene banking. It faces challenges but can be an important part of conservation when used strategically along with in-situ methods.
Biodiversity and its conservation
Biodiversity conservation is important as the Earth is home to millions of plant and animal species. Biodiversity can be conserved through both in-situ and ex-situ methods. In-situ conservation involves protecting habitats and ecosystems within protected areas like national parks, sanctuaries, biosphere reserves, and sacred forests. Ex-situ conservation involves protecting species outside their natural habitats in facilities like seed banks, gene banks, tissue culture banks, zoos, and botanical gardens. With increasing threats from habitat loss, poaching, and human-wildlife conflict, both in-situ and ex-situ conservation efforts are needed to prevent the extinction of endangered species and maintain Earth's biodiversity.
jwl330_princ_of_biodiv_conserv_muchai_notes_sep_2019_ok_final.pdf
This document provides an overview of a course on biodiversity conservation. The course aims to provide students with knowledge of basic biodiversity concepts and for students to be able to identify biodiversity resources and challenges, describe ecological functions, and design conservation solutions. The document outlines the expected learning outcomes, course content including definitions and descriptions of biodiversity, threats to biodiversity, and conservation methods. It also lists the instructional materials, assessment methods and recommended reference materials for the course.
P Drobnicki Conservation Curriculum Oakland Zoo
This document provides information about forest ecology and wildlife conservation related to otters in the Bay Area of California. It discusses habitats in the area, characteristics of mammals like otters, adaptations otters have for swimming, how those adaptations evolved over time, problems otters face with pollution and habitat loss, and potential solutions for conservation like protecting forests and reducing water usage.
Biodiversity basics
This document discusses biodiversity and its importance. It begins by defining biodiversity as the variety of all life forms, including different plants, animals and microorganisms, as well as their genes and ecosystems. It then discusses the three types of biodiversity: genetic, species, and ecological diversity. The document emphasizes the importance of biodiversity, noting how it increases ecosystem productivity and provides many benefits to humans like medicines, food, wood products, and more. It also outlines some major threats to biodiversity such as habitat destruction and pollution. Specific areas with high biodiversity, like rainforests and coral reefs, are highlighted. The conclusion provides suggestions for how individuals can help protect biodiversity.
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.
textbook.docx
This document discusses biodiversity conservation. It begins by defining biodiversity as the variety of living organisms on Earth, including ecosystems and genetic diversity within species. Biodiversity is important for maintaining ecological balance. The document then discusses biodiversity conservation methods, including in-situ conservation of protecting species within their natural habitats through national parks, wildlife sanctuaries, biosphere reserves, and sacred groves. Ex-situ conservation protects species outside their natural habitats in botanical gardens, zoological parks, and gene banks. The goal of conservation efforts is to protect biodiversity for future generations.
8th text book very famous
This document discusses biodiversity conservation. It begins by defining biodiversity as the variety of living organisms on Earth, including ecosystems and genetic diversity within species. Maintaining biodiversity is important for ecological balance. The document then discusses threats to biodiversity from human activity and the need for conservation. It outlines two main approaches: in-situ conservation of species within their natural habitats, including through national parks and wildlife sanctuaries; and ex-situ conservation of species outside their natural habitats, including through zoos, botanical gardens, and gene banks. The goal is to educate about biodiversity and promote its conservation.
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.
conservationofbiodiversityinindiaspeciesofindia-160912053726.pdf
1) The document discusses endangered and endemic species found in India and efforts towards conservation of biodiversity.
2) It provides examples of critically endangered, endangered and vulnerable species in India including the tiger, Asiatic lion, and Ganges river dolphin.
3) The main techniques for conservation of biodiversity mentioned are in-situ conservation of species within their natural habitat and ex-situ conservation outside their natural habitat such as botanical gardens, seed banks, and gene banks.
Similar to Conservation and biodiversity (20)
jwl330_princ_of_biodiv_conserv_muchai_notes_sep_2019_ok_final.pdf
jwl330_princ_of_biodiv_conserv_muchai_notes_sep_2019_ok_final.pdf
conservationofbiodiversityinindiaspeciesofindia-160912053726.pdf
conservationofbiodiversityinindiaspeciesofindia-160912053726.pdf
Conservation and biodiversity
- 1. Conservation and biodiversity Year 11 Outdoor education
- 3. Conservation Conservation is the protection, maintenance, management, sustainable use, restoration and enhancement of the natural environment. It is the safe guarding of the natural environment and of the native species of plants and animals. Who should this be a concern to?
- 4. Leave no trace principles… Plan Ahead and Prepare Travel and Camp on Durable Surfaces Dispose of Waste Properly Leave What You Find Minimise Campfire Impacts Respect Wildlife Be Considerate of Your Hosts and Other Visitors
- 5. The world in your hands….THE WORLD IS IN YOUR HANDS…
- 7. Biodiversity is… The variety of all life forms, the different plants, animals, fungi and microorganisms, the genes they contain and the ecosystems they form. Western Australia is one of the most diverse, biological regions in the world..
- 9. How many bioregions does Western Australia have? 26
- 10. How many mammals exist in Western Australia? 226
- 11. How many species of birds exist in Western Australia? 613
- 12. How many types of reptiles live in Western Australia?? 560
- 13. How many species of freshwater fish inhabit Western Australian waterways? 73
- 14. Other interesting biodiversity's of Western Australia… There are more than 6000 named species of cryptogams (algae, fungi, lichens and bryophytes) An estimated 80,000 species of insects More than 12, 000 species of vascular plants
- 15. Risks to biodiversity 204 native animals and 378 native plants are formally listed as threatened with extinction A further 400 native animals and 450 native plants are at risk of extinction because of salinity levels More than 3000 native plants are susceptible to phytophthora (die back) Introduced species, fire hazards habitat destruction and climate change (next week)