Saturday, September 28, 2013

What are Ecological Niches?

Definition of Niche: the full range of biotic and abiotic conditions nether which an existence lives. Because of competition and limited resources, organisms with similar requirements tend to discriminate into more or less different bionomical inlets. pattern of competitive exclusion - two species exit not take over exactly the same niche. The concept of the bionomic niche is very(prenominal) great one; it helps us to pull in how organisms in an ecosystem act with each other. The concept is described by Odum as follows: The ecologic niche of an organism depends not sole(prenominal) on where it lives but in addition on what it does. By analogy, it whitethorn be said that the habitat is the organisms address, and the niche is its barter, biologically speaking. Odum - basic principle of Ecology - W B Saunders 1959 What do oak trees do? If you can conclude that question you know the oak trees profession or its ecological niche. Perhaps you think that oak trees onl y when stand there looking pretty and not doing very much, but in reality they do a lot. Oak trees: 1.          draw and prat sunlight by photosynthesis; 2.         absorb water and mineral salts from the primer; 3.         provide shelter for many animals and other plants; 4.         act as a support for creeping plants; 5.
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        serve as a source of food for animals; 6.         cover the ground with their dead leaves in the autumn. These six things are the profession or ecological niche of the oak tree; you can think of it as organism a kin d of job description. If the oak trees were ! cut saddle or destroyed by fire or storms they would no longer be doing their job and this would cast a dingy effect on all the other organisms living in the same habitat. Hedgehogs in a garden also chip in an ecological niche. They search... If you want to get a full essay, straddle it on our website: OrderCustomPaper.com

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