Biodiversity is the variety of different forms of life on earth, including the different plants, animals, micro-organisms, the genes they contain and the ecosystem they form. What are the five major threats to biodiversity? Poor soil conservation in agriculture, and (4). 1. Scientists have named three different levels of biodiversity: genetic diversity, species diversity, and ecosystem diversity. 1. Ø Over exploitation of biodiversity occurs in the form of (1). Overpopulation has led to more and more habitats being degrade in order to accommodate human activities like agriculture, which is needed to support the human population. Most ecosystems are facing multiple threats. Overhunting, (2). Biodiversity conservation3. habitat fragmentation-a road cuts across wildeness areas, and as building projects expand into new areas, many habitats are becoming virtual islands. The four key benefits are: (1) Biodiversity Provides the Natural Resource, (2) Biodiversity Provides the Genetic Resource, (3) Biodiversity Maintains a Stable Ecosystem, and (4) Biodiversity Ensures Optimum Utilization and Conservation of Abiotic Resources in an Ecosystem. Recent illegal introduction of a fish for aquaculture poses a threat to indigenous cat fishes in our rivers. Excessive release of greenhouse gases and the resultant global warming and climate are real threats to biodiversity. Ø Illegal wildlife trade is the “largest threat” to biodiversity in Asia Threats to Biodiversity We use cookies to analyse how visitors use our website and to help us provide the best possible experience for users. In the 21st century, the nation’s forests and grasslands face four threats. Describe the conflicting demands that may accompany species conservation 6. Biodiversity is important because it allows for organisms to adapt to their environment, and to survive dramatic environmental changes. The four major components of biodiversity are species diversity, ecological diversity, genetic diversity, and functional diversity. More than 50 percent are estimated to exist in these areas. (See Figure 3.10) For terrestrial ecosystems, the most important direct driver of change in the past 50 years has been land cover change (C4.3, SG7). We can look at the ecological biodiversity of Mississippi. Let’s look at the devastating threats to the world’s biodiversity. What is the IUCN and what four categories do they list species in? There are several methods and tools to assess the impact of climate change on biodiversity and ecosystem services. Additionally, many of the factors that threaten the biodiversity of this hotspot also directly threaten these same communities. Indirect drivers play a major role in influencing direct drivers of biodiversity and ecosystem change, as well as strongly influencing other indirect drivers. Socio-economic and demographic trends heavily influence consumption patterns with subsequent environmental implications. habitat loss-when a rainforest is made into cattle pasture, a meadow made into a small parking lot, a swamp draining for house etc. Here we report an analysis of threat information gathered for more than 8,000 species. Biodiversity, or Biological Diversity, is the sum of all the different species of plants, animals, fungi and microbial organisms that live on Earth, including the various ecosystems in which they live on. One easy example is bringing a backpack or a reusable bag to the grocery store so that you don't use new bags. Other species include the (b) Sumatran tiger and the (d) Sumatran elephant, both of which are critically endangered. Name it. Climate change is recognized as a major extinction threat, particularly when combined with other threats such as habitat loss. First, it is rare that humans intend to make a species go extinct or to threaten biodiversity in some other way. Cite any two examples of these exotic species in your locality. Or of China. Meaning of Biodiversity: ADVERTISEMENTS: ‘Biological diversity’ encompasses all species of plants, animals, and microorganisms and the ecosystems and ecological processes of which they are parts. Cependant, abandonner complètement les possibilités de la médecine, même si la randonnée un médecin est considéré comme inacceptable, on ne peut pas. While learning about the negative impacts of humans on biodiversity, please keep a few things in mind. Tropical area and coral reefs are the major areas where numerous species are believed to be unknown to science. Each new threat puts additional stress on already weakened ecosystems and their wildlife. How co-extinctions affects biodiversity? Define and compare the small-population approach and the declining-population approach 4.Distinguish between the total population size and the effective population size 5. Habitat: habitat loss is the major cause of loss of biodiversity, which is caused by human activities either destroying or changing natural habitats. Habitat Loss and Deforestation Biodiversity on land is highly concentrated in the tropical rainforests. Habitat loss and destruction- major contributing factor in the inhabitation of human beings and the use of land for economic gains. There are four types of biodiversity. List the three major threats to biodiversity and give an example of each 3. How is biodiversity loss linked to poverty in some countries? What are the supply and demand factors involved? Broadly utilitarian reasons5. Due to unsustainable resource-use, once productive forests and grasslands have been turned into deserts and wastelands have increased all … The area can be large or small. 3. Scientists disagree about the likely magnitude of the effects, with extinction rate estimates ranging from 15 percent to 40 percent of species committed to extinction by 2050. Define biodiversity hot spots and explain why they are important 7. Biodiversity refers to the changes and variability of the living organisms on Earth. View our Cookie Policy . Biodiversity also includes the genetic information that these organisms contain. Explore its types and importance only @ BYJU'S. Major Threats to Biodiversity. Healthy forests make for a healthy nation. Ecosystem services make human life possible by, for example, providing nutritious food and clean water, regulating disease and climate, supporting the pollination of crops and soil formation, and providing recreational, cultural and spiritual benefits. The greatest threat to biodiversity is the size and rate of growth of human population. Therefore, on a smaller scale, you can use biodiversity to Illegal wildlife trade. Rainforest habitat is being removed to make way for (e) oil palm plantations such as this one in Borneo’s Sabah Province. Among the threats behind environmental destruction and degradation in the Amazon are the lack of policy frameworks to support sustainable development and natural resource protection, political instability, the inability of some institutional and governmental entities to establish and enforce legislation for nature conservation, and poverty and inequality. Science Fair Project on the Major Threats to Biodiversity Science Fair Project on the Hot Spots of Biodiversity ; Science Fair Project # 1. List four major threats to biodiversity and give specific examples of them as shown in the video. The smaller the area of the habitat, the lower would be the number of species. Again, less garbage means less loss of biodiversity from expanding landfills. 5. The variety and richness of all the plants and animals species at different scales in space-locally, in a region, in the country and the world. Efforts are being made by science to discover and describe new species more rapidly as compared to past. “Global biodiversity information facility and the species 2000” is the project which is attempting to discover new species faster than ever before. Habitat loss, invasive species, population, pollution, overexploitation (HIPPO) ... For example, if the temperature was to get warmer, some plants may dry out and then the animals that eat those plants lose their food source. Vulnerability assessments have particular meaning in the natural hazards and socio-economic fields but are used more loosely and encompass a variety of methods in the field of biodiversity and climate change. State three reasons why you think it is necessary to conserve the world’s biodiversity. Forest Service Chief Dale Bosworth names them as: (a) fire and fuels, (b) invasive species, (c) loss of open space, and (d) unmanaged recreation. Biodiversity:- Biodiversity is that part of nature which includes the differences in genes among the individuals of a species. 4. An example of the latter is Amazon forest dieback. Threats to Biodiversity: Habitat loss is mainly due to human population growth, industrialization and changes in the land use patterns, poaching of wild life and man wildlife conflicts.Man has begin to overuse or misuse most of these natural ecosystems. Four Threats to the Health of the Nation's Forests and Grasslands. Biodiversity and threats to it Biodiversity and threats to it 4. Everyday, more people need more space, consume more resources and generate more waste as world population continues to grow at an alarming rate. See our Home Organization articles for more great ideas. 1. Shrinking habitat: The habitat areas in most cases have got shrunk due to many reasons and stand as isolated patches or islands. The core threat to biodiversity on the planet, and therefore a threat to human welfare, is the combination of human population growth and resource exploitation. Biodiversity Examples. For example, a link between ... Overexploitation and invasive species have been important as well and continue to be major drivers of changes in biodiversity (C4.3). 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 planet’s biological diversity in the