13 Herbivory 10-14-09

13 Herbivory 10-14-09 - Ecology 203 Overview Geographic...

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Unformatted text preview: Ecology 203 Overview Geographic Distributions Geographic Distributions Populations Communities Ecosystems Applications Gregg Hartvigsen Populations Population parameters (C8) Population growth (C9) Population growth (C9) Competition (C10) Predation (C11) Herbivory and Mutualism (C12) Disease and Parasitism (C13) Regulation of Populations (C14 Regulation of Populations (C14) Harvesting Populations (C15) Pest Control (C16) Conservation Biology (C17) Herbivory Definition Why is the world green? Additional questions Six reasons world is green (Krebs 2001): 1. Green represents energy, but plants are poor in nutrients are poor in nutrients. 2. Plants are defended against herbivory. 3. Herbivores limited by abiotic factors. 4. Spatial and temporal heterogeneity of plants make them hard to find. 5. Herbivore populations self-regulated by intraspecific competition, territoriality, cannibalism, etc. 6. Predators limit herbivore abundance . Plants are relatively poor food - Animals need nitrogen Animals need nitrogen Six reasons world is green (Krebs 2001): 1. Green represents energy, but plants are poor in nutrients are poor in nutrients....
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This note was uploaded on 07/11/2010 for the course BIO 209 taught by Professor Hartvigsen during the Spring '09 term at SUNY Geneseo.

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13 Herbivory 10-14-09 - Ecology 203 Overview Geographic...

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