Biodiversity loss list of high impact articles ppts. To understand why its loss is important, you must first know what biodiversity is. The latter phenomenon can be temporary or permanent, depending on whether the environmental degradation that leads to the loss is. Study on understanding the causes of biodiversity loss and the. Loss of biodiversity impacts human health world health. When considering biological diversitythe loss of species, and the environmental degradation and changes taking place on the planetwe have been too quick. Biodiversity is a broad totality and often embraces elements beyond species diversity or numbers. Biodiversity loss, also called loss of biodiversity, a decrease in biodiversity within a species, an ecosystem, a given geographic area, or earth as a whole. Loss of biological diversity national science foundation.
Nearly 45,000 species of plants and twice as many of animals have been recorded from india. We also present the major climate change threats that are specific to various ecosystems, as well as the opportunities for mitigation and adaptation. Biodiversity threats weston w sechrest,university of virginia, charlottesville, virginia, usa thomas m brooks, center for applied biodiversity science conservation international, washington dc, usa any direct or indirect human activity that threatens the planets biological diversity in the. In addition, biodiversity has always been an integral. The loss of biodiversity is dangerous and its consequences are immediate. This article throws light on the ten major causes for the loss of biodiversity, i. In addition to members of the national science board involved in this study, the work of the task force benefited significantly from the contributions of dr. The latter phenomenon can be temporary or permanent, depending on whether the environmental degradation that leads to the loss is reversible through ecological restoration ecological resilience or. The number of animals living on the earth has plunged by half since 1970. Mar 12, 2018 what is biodiversity and why does it matter to us.
Suggested by adrev masters admin sweet victory as featured in spongebob squarepants. The main cause of the loss of biodiversity can be attributed to the influence of human beings on the worlds ecosystem, in fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and transferring species from one area to. Case studies on forest ecosystems and biodiversity loss 151 7. Action 7 is to ensure no net loss of biodiversity and ecosystem services. The fossil records show that since life originated on earth, about four million years ago, the vast majority of species which existed are now extinct. Biodiversity is the variety of living species on earth plants, animals and microorganisms and the ecosystems they form. The concept of biodiversity has provoked considerable debate and misunderstanding among the general public, decisionmakers, and even the scientific community.
Many activities indispensable for human subsistence lead to biodiversity loss, and this trend is likely to continue in the future. There is growing concern about the health consequences. Smith, consultative group on biodiversity, new york, dr. The eu is committed to halt the loss of biodiversity and the degradation of ecosystem services by 2020. For example, a major debate in biological sciences over many decades has been that of pattern versus process, especially in systematics and evolutionary studies. The conservation of native biodiversity appears to be the theme of biodiversity conservation texts wilson and peter, 1988.
Genetic biodiversity genetic diversity refers to the differences in the genetic heritage of a species. This article provides a brief overview of the recent loss of biodiversity in india. Despite biodiversity has values important to human and environmental sustainability, the decline in biodiversity continues altieri 1999. Biodiversity and conservation although india h as only 2. Biodiversity measures the variety of animal and vegetable species in the biosphere. Biodiversity can be measured through the use of quantitativeindicators, although no single unified approach exists.
Loss of biodiversity or biodiversity loss tamara is the extinction of species human, plant or animal worldwide, and also the local reduction or loss of species in a certain habitat. In addition, students could create psas public service announcements for their posters and upload to so they can make qr codes that are glued to each poster. Jun 11, 20 causes of biodiversity lossaccording to most sources, the major directcauses of humaninduced biodiversity lossare1. Study on understanding the causes of biodiversity loss and. The number of tigers has plunged by 97% in the last century. They provide clean air, fresh water, medicines and food security.
Search, discover and share your favorite biodiversity gifs. The first ever assault on biodiversity dates back to the inception of human society. Understanding the causes of biodiversity loss and the policy assessment framework 7 list of figures figure 1. Some 12% of bird species, 23% of mammals, 25% of conifers, and 32% of amphibians are currently threatened with extinction, and similarly. The loss of biodiversity brought about irreversible consequences of gene pool depletion, which is attributed to the rapid destruction of habitats. The term that is used to define this crowd of organisms that populate every corner of the planet, and that have adapted even to the most extreme environments, is biodiversity or biological diversity. From the hot arid deserts of the sahara, through the lush green rainforests of the amazon, to the ocean depths and bright corals, our natural world is a marvel of different landscapes, materials, colours and textures. Biodiversity loss and its impact on humanity university of michigan. Biodiversity is the variety within and between animal and plant life in a particular habitat or the entire planet. This article throws light upon the causes of loss of biodiversity in india. Pdf loss of biodiversity and conservation strategies.
Biodiversity threats weston w sechrest,university of virginia, charlottesville, virginia, usa thomas m brooks, center for applied biodiversity science conservation international, washington dc, usa any direct or indirect human activity that. The convention on biological diversity calls for each party to develop a national biodiversity strategy and action plan nbsap to guarantee that the objectives of the convention are undertaken at all levels and in all sectors in each country article 6. 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. Oct 25, 2016 in addition, students could create psas public service announcements for their posters and upload to so they can make qr codes that are glued to each poster. The loss of populations, species, or groups of species from an ecosystem can upset its normal function and disrupt these ecological services. Essay on the loss of biodiversity your article library. Oecd work on biodiversity and ecosystems biodiversity in the international context biodiversity is defined as the variability among living organisms from all sources, including, inter alia, terrestrial, marine, and other aquatic ecosystems, and the ecological complexes of which they are part. For example, fish stocks are dwindling, forest loss is resulting in the loss of many species, land and other resources are being misused, leading to various long terms costs. This observation led to the question of how such loss of biological diversity will alter the functioning of ecosystems and their ability to provide society with the. Pdf biodiversity loss and its impact on humanity researchgate. The biodiversity strategy sets out 6 targets and 20 specific actions geared towards this overall objective. Biodiversity loss is the extinction of species plant or animal worldwide, and also the local reduction or loss of species in a certain habitat. Thegreypolygonrepresents the 95% confidence interval, whereas red dots give maximum and minimum. Biodiversity conservation provides substantial benefits to meet immediate human needs, such as clean, consistent water flows, protection from floods and storms and a stable climate.
However, over the past 100 years, humans have increased the extinction rate by at least 100 times compared to the natural rate, leading to a net loss of biodiversity. Much has been published on the subject since its first appearance at the national forum on biodiversity in september, 1986, the proceedings of which became the bestseller, biodiversity. The loss of biodiversity has always been a natures part of evolution. Loss of biodiversity deforestation throughout indonesia. The earth is populated by an incredible number of different living creatures. Understanding the causes of biodiversity loss and the policy assessment framework 5 6. An ecosystem is the name given to all living species that live together in a stable community, interacting with one another and their physical environment. The diversity of societies, cultures and languages that has developed throughout human history is intimately related to biodiversity and its use. Contents preface vii part 1 ecosystemlevel biodiversity 1 chapter 1 integrating spatial behavioral ecology in agentbased models for species conservation 3 christina a. Introduction to biodiversity center for biodiversity. The main cause of the loss of biodiversity can be attributed to the influence of human beings on the worlds ecosystem fishing and hunting, changing the biogeochemical cycles, fish stocks are dwindling, forest loss is resulting in the loss of raw materials, land use change, climate change, invasive species, overexploitation, and pollution. That is what makes our country one of the 12 mega diversity countries of the world. To put it simply, it is the number of different species in one area and the quantity of each of these species.
The main cause of the loss of biodiversity can be attributed to the influence of human beings on the worlds ecosystem, in fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and transferring species. Ignorance about species and ecosystems and loss of traditional knowledge 7. Conversely, others argued that an important component of biodiversity is maintained by traditional farming techniques. Causes of biodiversity lossaccording to most sources, the major directcauses of humaninduced biodiversity lossare1. Biodiversity, or biological diversity, is a term that refers to the number of genes, species, individual organisms within a given species, and biological communities within a defined geographic area, ranging from the smallest ecosystem to. These include drinkable water, clean air, and fertile soils. A smallscale example of biodiversity is the various life forms within the park in the neighborhood. Sep 30, 20 why cant your body handle a punch to the liver. Biodiversity also underpins ecosystem function and the provision of ecosystem services. Understanding the causes of biodiversity loss and the policy assessment framework 3 table of contents table of contents 3 list of figures 7 list of tables 11 executive summary 1 introduction 17 1. Isbn 9789533077079, pdf isbn 9789535144014, published 20111116. Pdf on dec 1, 2016, pia sethi and others published loss of biodiversity find, read and cite all the research you need on researchgate. It also affects human health, social relations, and freedom of choice. Introduction to biodiversity center for biodiversity outcomes.
In the context of conserving biodiversity, reid and miller. We have lost 97% of our wild tigers in just over a century. Biodiversity provides resources and ecosystem services for humans on the planet. Important biological causes of the loss of biological diversity include the loss of habitats, the introduction of exotic species, overharvesting of biodiversit y. He also explains how biodiversity is decreasing on the planet due to habitat destruction, invasive species, climate change, over harvesting, and pollution. Biodiversity provides many key benefits to humans that go beyond the mere provision of raw materials. The red line shows the average change acrossallcombinations ofgenes,species,ortraits. The integration of biodiversity into one health oie. Species extinction is a natural part of earths history. Gardner brown, university of washington, seattle, dr. Biodiversity also supplies indirect services to humans which are often taken for granted. Loss of biodiversity and extinctions global issues. Biodiversity includes the diversity within species and between. With as few as 3,200 remaining, action is needed to increase and strengthen their habitat and protect the species.
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