Bio 201 F09 Lowry lect 38 (L38) biodiversity

Bio 201 F09 Lowry lect 38 (L38) biodiversity - Ecosystems...

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1 Ecosystems and Biodiversity Patterns in Species Changes During Succession Eugene Odum (1969) 3) ABILITY TO MAINTAIN The Stability of the “Climax” Community • Higher Species diversity • Evolution of species long associated with one another - reduce direct competition – Leads to greater resource partitioning • More species may contribute to greater stability of community structure Ecosystems Ecology - Studying the processes that maintain an ecosystem, which is a functioning biological area, often including multiple communities Ecosystem = a contained space or area of the Earth, including all of the organisms along with all the components of the abiotic environment Involves inputs and outputs of energy and material
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2 Where is an Ecosystem ? Ecosystem processes: nutrients Biogeochemical cycles : path of nutrients through an ecosystem • Nutrients accumulate in ind. or pop. = "pools" of nutrients • Nutrients cycle between pools – Meteorological – Geological – Biological transport Ray Lindeman 1942 First Ecosystem model
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3 Eugene Odum 1953. Silver Springs, Florida.
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This note was uploaded on 03/22/2010 for the course BIO 200 taught by Professor Stone during the Spring '10 term at SUNY Stony Brook.

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Bio 201 F09 Lowry lect 38 (L38) biodiversity - Ecosystems...

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