Lecture 23, Ch. 53

Lecture 23, Ch. 53 - 4 1 0011 0010 1010 1101 0001 0100 1011...

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Unformatted text preview: 4 1 0011 0010 1010 1101 0001 0100 1011 Lecture #23 Date ____ Chapter 53 ~ Community Ecology 4 1 0011 0010 1010 1101 0001 0100 1011 Community structure Community ~ an assemblage of populations living close enough together for potential interaction Richness (number of species) & abundance. Species diversity Hypotheses: Individualistic ~ chance assemblage with similar abiotic requirements Interactive ~ assemblage locked into association by mandatory biotic interactions 4 1 0011 0010 1010 1101 0001 0100 1011 Interactions Interspecific (interactions between populations of different species within a community): Predation including parasitism ; may involve a keystone species/predator Competition Commensalism Mutualism 4 1 0011 0010 1010 1101 0001 0100 1011 Predation defense Cryptic (camouflage) coloration Aposematic (warning) coloration Mimicry ~ superficial resemblance to another species Batesian ~ palatable/ harmless species...
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This note was uploaded on 09/22/2009 for the course BIOL BIOL 51 taught by Professor Janetkoprivnikar during the Spring '08 term at Pacific.

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Lecture 23, Ch. 53 - 4 1 0011 0010 1010 1101 0001 0100 1011...

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