6 main threats to biodiversity pdf

Atmospheric carbon dioxide levels fluctuate in a cyclical manner. Often species, or biodiversity, declines in response to more than one category of threat, and the real threat is the combined or synergistic impact of changes brought about. In this diagram, anthropogenic drivers equate to the pressures as described in section 6. Quantifying threats to imperiled species in the united states assessing the relative importance of habitat destruction, alien species, pollution, overexploitation, and disease david s. New and emerging threats, particularly climate change and water scarcity, are intensifying and will persist well into the future. Deforestation, land usecover changes, overutilization of natural resources, poaching, pollution, etc. In recent years, it has been retreating to higher elevations. There are many threats to our natural world, which include. Vulnerability assessments have particular meaning in the natural hazards and socioeconomic fields but are used more loosely and encompass a variety of methods in the field of biodiversity and climate change. Focal area addressing the major threats to biodiversity, including those arising from invasive alien species, climate change, pollution, and habitat change five main threats to biodiversity are commonly recognized in the programmes of work of the convention. Huge pressure from the worlds rapidly increasing population. Cellulose, one of the main components of wood, is proving to be remarkably useful when broken into nanosized bits. Wilcove, david rothstein, jason dubow, ali phillips, and elizabeth losos. Marmot pelts are being traditional goods for illegal trade to russia for many years.

To learn about the threats to biodiversity we are going to attach a very small and lightweight camera to a bird weve name bob. While earths biodiversity is so rich that many species have yet to be discovered, many species are being threatened with extinction due to human activities, putting the earths magnificent biodiversity at risk. Major threats biodiversity is under serious threat as a result of human activities. World conservat ion u nion cons ervat ion me asure s. Climate change has proven to affect biodiversity and evidence supporting the altering effects is widespread.

Threats to biodiversity 6 major loss of biodiversity. The using of bomb isnt only lead the fish to death but also damaging the coral reef so badly. Threats to biodiversity infrastructure development such as major industries, road networks, irrigation, water resources, power and energy projects affect biodiversity. We also present the major climate change threats that are specific to various ecosystems, as well as the opportunities for mitigation and adaptation. Threats to biodiversity 6 major loss of biodiversity biology explorer. Modernhumanactionsthreatenbiologicaldiversityona worldwidescale, overanextremelyshortgeologicaltime period. The proportion of livestock breeds at risk of extinction is increasing. Threats to biodiversity pollution threats to biodiversity.

Species are becoming extinct at the fastest rate known in geological history and. Elk, musk deer, argali, wolves, and bears are traded regularly into china. Habitat loss is directly linked to human induced pressures on land. Fisherman will do anything to catch their prey as much as they can. This loss is a direct result of human activity and constitutes a direct threat to human wellbeing in all regions of the world. Pdf the biodiversity, diversity in life forms, suffers greater threat from. Habitat loss and d e s t r u c t i o n this is one of the greatest threats to biodiversity. They include demographic, economic, sociopolitical, cultural, religious, scientific and technological factors, which influence human activities that directly impact on. And over all these threats is climate change which is already seriously impacting british columbia and is the foremost threat to biodiversity. Impacts of climate change on biodiversity and ecosystem. Areas that concentrate on rare and potentially endangered species. The global warming trend is recognized as a major biodiversity threat, especially when combined with other threats.

Pdf pdf threats to biodiversity hot logging was ranked as the major threat to biodiversity conservation in the park by 42. Through usaids first biodiversity policy, usaid and its partners will support and mobilize resources to chart a development pathway that nourishes, rather than depletes, natural capital. Dr ag p pict ur t e o op pllac eh iccon to oa o lde r o add or cliick k. Biodiversity and conservation although india h as only 2. There are several methods and tools to assess the impact of climate change on biodiversity and ecosystem services. Threats to biodiversity bingo, cut out the clues, and place them in a container. Threats to aquatic biodiversity threats to freshwater species 20% of freshwater fishes extinct or in serious decline extinctatrisk salmonsteelhead runs outnumber healthy by 3. Biodiversity is vital to boost productivity in ecosystems where species depend on to live. Major threats to biodiversity not only emerge from everincreasing human population but also multiplied by it. Current extinction rates are about 2,500 times the background rate at. Major threats freshwater fishes may now be the most threatened group of vertebrates, based on more than 5,000 species assessed, to date, by the iucn reid et al. Threats to biodiversity habitat destruction important to protect habitat in order to protect biodiversity within it. Wildlife are under threat from many different kinds of human activities, from directly destroying habitat to spreading invasive species and disease. An estimated 18 million acres of forest are lost each year, due in part to logging and other human practices, destroying the ecosystems on which many species depend.

May 05, 2015 study finds climate change as threat to 1 in 6 species the american pika lives in rocky mountain areas and bouldercovered hillsides. To play bingo, the instructor will need to make a copy of attachment 1, biodiversity 1. Study finds climate change as threat to 1 in 6 species. The loss of biodiversity is a significant issue for scientists and policymakers and the topic is finding its way into living rooms and classrooms. The threats to australias plants, animals and ecological systems are numerous and wide ranging.

Biodiversity biological diversity is the total variety of living organisms in all ecosystems on earth, the genetic differences between them, and the communities and ecosystems in which they occur. Habitat loss is the next threats to marine biodiversity. Through increased adoption of sustainable practices, we can reduce habitat loss and its consequences. Major threats iucn freshwater fish specialist group. Overall, the diversity of crops present in farmers fields has declined and threats to crop diversity are increasing. Deforestation is a direct cause of extinction and loss of biodiversity. The threats to biodiversity can be summarized in the following main points. Designed to test whether we are reversing the rate of biodiversity loss under the convention for biological diversity pros. Habitat destruction deforestation, invasive species, genetic pollution, climate changes, diseases and human population. This includes deforestation for wood for cooking food.

Cornitermes cumulans brazilian termites make bulky, rich and. Global climate change change in a biotic elements of ecosystems leading to biotic change. Learn how serious these threats are in contributing to the loss of biodiversity in our planet. Quantifying threats to imperiled species in the united states. Pdf biodiversitythreats and conservation researchgate. May 23, 2015 deforestation is a direct cause of extinction and loss of biodiversity.

The third focal area of the 2010 framework concerns the five major threats to biodiversity. Gibbs background although species extinctions are part of the evolutionary process, current extinction rates are much greater than at any time in the last several million years. Industrial activities, agriculture, aquaculture, mining, deforestation, and water extraction are all central causes of habitat loss. Habitat destruction is also a major threat to biodiversity. The main dangers worldwide are population growth and resource consumption, climate change and global warming, habitat conversion and urbanisation, invasive alien species, overexploitation of natural resources and environmental degradation. The usaid biodiversity policy builds upon the agencys long history of conserving a global biological heritage. Bobs going to fly around the world and well get to see whats.

Today, ifad recognizes that biodiversity loss is one of the main threats to smallholders and their communities without biodiversity, livelihoods are not sustainable and food security and nutrition for the entire planet is weakened ifad, 2016a. Many threats to forests and forest biological diversity emanate from nonforest sectors such as agriculture, land use, industry, energy and others. Threats to biodiversity the nature trust of british columbia. Habitat fragmentation, the loss of large units of habitat, is also a serious threat to biodiversity.

Nearly 45,000 species of plants and twice as many of animals have been recorded from india. Below, we discuss six of the major threats to biodiversity. However, the burning of fossil fuels in recent history has caused a dramatic increase in the levels of carbon dioxide in the earths atmosphere, which have now reached levels never before seen on earth. China national biodiversity conservation strategy and action plan. Threats to biodiversity chapter 4 flashcards quizlet. The main reasons for poaching are hunting for food, trade market demand for skins and bodies of the animals and lack of enforcement control. They can use various way to do fisheries such as the using of trawl, bomb, and dope. That is what makes our country one of the 12 mega diversity countries of the world. Study finds climate change as threat to 1 in 6 species the. Two basic criteria of keystone species have been proposed by mills et al. Biodiversity refers to the variety of living species on earth, including plants, animals, bacteria, and fungi. Some of the major values of biodiversity are as follows. Each new threat puts additional stress on already weakened ecosystems and their wildlife.

The australian landscape shows the legacy of past threats that are still actively impacting on our biodiversity. In this booklet, we highlight some of the causes of climate change and its impacts on biodiversity, as well as the various links between biodiversity and climate change. The main dangers worldwide are population growth and resource. Tropical rainforests in particular, such as the amazon. Study finds climate change as threat to 1 in 6 species the american pika lives in rocky mountain areas and bouldercovered hillsides. The sources of danger to biodiversity include taxonomicallyspeci.

Global warming is a major threat to global biodiversity. It is the natural wealth of the earth, which supplies all our food and much of our shelter and raw materials. Biodiversity is the most precious gift of nature mankind is blessed with. Taking natures pulse concluded that of the six major stresses that threaten biodiversity in bc, the three most significant ones are ecosystem conversion, ecosystem degradation and alien species. Many key components of biodiversity for food and agriculture at genetic, species and ecosystem levels are in decline. Despite the benefits from biodiversity, todays threats to species and ecosystems are increasing day by day with alarming rate and virtually all of them are caused by human mismanagement of. Biodiversity is under serious threat as a result of human activities. The forest biodiversity losses ultimately arise from major economic and political trends in the societies.