A keystone species is defined as one that has a critical role in determining and maintaining the overall relationship of plants and animals within an ecosystem. If a keystone species is removed or declines‚ the nature of the ecosystem will change dramatically. Sea Otters — A Classic Keystone Species The classic tale of a keystone species is that of the sea otter‚ which was once found in abundance along the West Coast of North America. The story goes something like this: 1. European and
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Endangered Animals of India : Endangered Animals of India Nataraj M.B. Department of Zoology. What is an endangered animal? : What is an endangered animal? A species is called endangered when there are so few of its kind left that it could disappear from the planet altogether and become ’extinct.’ Extinct means an animal hasn’t been seen in the wild for 50 years. In total 762 plant and animal species are now recorded as extinct. IUCN RED LIST : IUCN RED LIST The IUCN Red List of Threatened
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Invasive Species: Asian Carp Asian carps are different species of fish that originated in many parts of Eurasia. There are 4 different types of Asian carps‚ but the silver carp and bighead carp are mostly found in the Mississippi River drainage basin and Illinois River. The silver and bighead carp first came to North America from China in 1973. Being filter feeders‚ they were imported to remove algae and suspended matter‚ ultimately trying to improve water qualities in aquaculture ponds. However
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The rabbit bandicoot also known as the Biliby is endangered‚ and has been for eight years. It has been vulnerable to the environment for three years. They are endangered because feral cats and other larger animals hunt them. Also‚ there is competition between other animals for food. Another reason why they are endangered is because of land clearing and livestock grazing habits the grasslands are disappearing‚ which is where the Bilibies live. It is important to save these animals because they used
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There are less than 1‚600 Giants Pandas left in the world‚ this doesn’t only make them endangered‚ but at risk of being extinct. Most panda’s live in China; China is known as a developed Country. There are barley any trees‚ and the air is very contaminated. Panda’s habitats are being destroyed to build factories whom will pollute the air and destroy everything they’ve got. There are many solutions that can be use to help this unfortunate animals. With the help of science‚ cloning the animals wouldn’t
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Species Interaction * The relationships between two species in an ecosystem. * The interactions between two species need not be through direct contact. Species may affect each other through intermediaries such as shared resources or common enemies. Major factors in evolution and adaptation: * Predation * Competition for scarce resources Terminologies: * Habitat – the actual physical location where a species lives. * Conditions – physical or chemical attributes of the
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Shannon Angus Mrs. Cumbee January 9‚ 2013 Foreign Invaders Invasive species are groups of organisms that are unnaturally occurring to an area. When introduced‚ they can cause economic and physical harm to humans and ecosystems. The importing‚ legally and illegally‚ of invasive species into our society is not only harmful to our population and our ecosystem but also the population of plants and animals in their indigenous homeland. To continue‚ the smuggling of plants and animals into new
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Keystone species are extremely important in ecosystems across the world. They help control things like population‚ abiotic and biotic life‚ and impacts on human life. Keystone species essentially control the functions of the environment they live in‚ and provide positive and negative effects. In class‚ we studied the effect that wolves had on the environment of Yellowstone National Park. Now‚ I introduce Grizzly Bears and Beavers as my two examples of a Keystone Species. Beavers completely change
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Taking a look into the world we live in‚ human activities generate a plethora of environmental stresses. These environmental stresses have a hard-hitting effect on coastal biomes that stretch all over the globe. Field studies have been instituted to record and assess the chemical and biochemical phenomena occurring in our natural environment this is referred to as Environmental Chemistry. Environmental Chemistry‚ studies the chemical processes that occur in the environment which are greatly influenced
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The invasive species are harmful for native systems and time and money should be invested to prevent these species from spreading and damaging systems that they are not native to. Strict rules for environmental obedience are necessary and good. Much more needs to be done to protect our planets and its biodiversity from the invasion of alien species. When non-native species from other ecosystems are introduced‚ they can upset that balance and bring harm to the established plants and animals‚ and
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