Chapter 6 - Chapter 6 (6-1) Communities- community...

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Chapter 6 (6-1) Communities - community structure varies around its edges where one type of community makes a transition to a different type of community. Most large terrestrial communities and ecosystems consist of a mosaic of different-sized vegetation patches . Species diversity - the number of species it contains (species richness) combined with the abundance of individuals within each of those species (species evenness). Niche Structure - how many ecological niches occur, how they resemble or differ from one another, and how the various species interact. Species diversity and sustainability - an ecosystem needs some producers and decomposers (6-2) Types of species: 1. Native Species - those species that normally live and thrive in a particular community 2. Non-native (invasive, alien) species - species that migrate into or are deliberately or accidentally introduced into a community 3. Indicator Species - amphibians, live part of life on land and part in water. Usually vulnerable to environmental disruption at various points in their life cycle. 4.
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This note was uploaded on 03/19/2008 for the course ISB 202 taught by Professor Johnson during the Fall '08 term at Michigan State University.

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Chapter 6 - Chapter 6 (6-1) Communities- community...

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