Ecological Relationships 10

Ecological Relationships 10 - Chapter 11: Ecological...

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Unformatted text preview: Chapter 11: Ecological Relationships ECOLOGY Study of how organisms interact with each other and their environment. Environment: abiotic factors (non-living) water, sunlight, oxygen, temperature, salinity, pH biotic factors (living) other organisms that share that same habitat Today, examine Energy flow Nutrient cycling Pollution Behavioral Ecology Levels of organization Population A group of individuals of the same species living in an area Community A group of populations of different species in an area Ecosystem Community of organisms in an area and the physical (non-living) factors with which those organisms interact Biosphere the global ecosystem, the total sum of living organisms (biomass or biota) Trophic Levels (feeding relationships) Producer photosynthetic autotrophs 1 consumer herbivore 2 consumer primary carnivore 3 consumer secondary carnivore Decomposers or saprobes (fungi , bacteria and protists, insects) Parasites Food Chain vs. Food Web...
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This note was uploaded on 08/28/2011 for the course BISC 13004 taught by Professor Wetzer during the Spring '09 term at USC.

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Ecological Relationships 10 - Chapter 11: Ecological...

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