GEOG 304 Study Guide - Midterm Guide: Tree Farm, Ecosystem Services, Ecological Succession
20 Apr 2017
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Document Summary
* native species- are those species that normally live and thrive in a particular ecosystem. * nonnative species- other species that migrate into, or are deliberately or accidentally introduced in and ecosystem. (also called invasive or alien species) * indicator species- species that provide warnings of damage to a community or an ecosystem. (ex: birds) * keystone species- species whose roles have a large effect on the types and abundance of other species in an ecosystem. * five major ways species interact: interspeci c competition, predation, parasitism mutualism, and commensalism. * interspeci c competition- occurs when members of two or more species interact to gain access to the same limited resources such as food, water, light or space. * - resource partitioning- occurs when species competing for similar resources evolve specialized traits that allow them to use shared resources at different times, in different places, or in different ways.
