b112_Lecture_50

b112_Lecture_50 - BIOL 112 Chapter 50 Ecology & the...

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BIOL 112 – Chapter 50 Ecology & the Biosphere
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What is Ecology? The study of organisms and how they interact with their environment and one another. Historically descriptive, now more experimental Involves studying both abiotic and biotic factors Includes a great deal of interdisciplinary research
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Organismal ecology Population ecology Community ecology Ecosystem ecology
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Ecological studies can be the basis for environmental decisions Ecological studies are generally not as definitive as politicians or environmentalists prefer
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Factors Affecting Distributions of Organisms
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Dispersal Limits Natural Examples 9-banded armadillo Woodland birds & the Great Plains Human Caused Examples Fire ant Cheatgrass Starlings
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An organism’s “familiarity” with its usual habitat may limit expansion. Examples
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This note was uploaded on 06/18/2009 for the course BIOL- 112 taught by Professor Bryanness during the Fall '09 term at Pacific Union.

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b112_Lecture_50 - BIOL 112 Chapter 50 Ecology & the...

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