EEB365H1 Study Guide - Midterm Guide: Landscape Connectivity, Global Change, Transpiration
25 Jan 2016
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Document Summary
Tropical forest and andes is where most species are lost. How numbers of indivudals change in a population with changes in limited resources. How community arrangements change in space and time. Removes disease agents ( the last thing to make them extinct) All local - need to start locally and add up several areas. Habitat loss and degradation is the most important threat to species then second is habitat fragmentation. Most important threat : cannot nd food or mate , more cascade effect- more spending of energy to nd food and mates in lower quality spots. Some species are doubly affected like amphibions who need water and land to live. Invasive species more threat to boreal forests- less species there so less buffer when an invasive species comes about. Agriculture land will be a barrier for some species. Biodiversity : phsycial(invasive) , chemical(disease) and temporal(disturbances)barriers to limit the soread of processes that disturb the ecosystem as a whole.
