chap 53 vocab - Interpsecific competition When ssp compete...

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- Interpsecific competition – When ssp compete for a resource in short supply, it’s a (-,-) relationship. - Competitive exclusion – Elimination of one or both spp in a local area due to interspecific competition. - Competitive exclusion principle – G.F Gause – Even a slight reproductive advantage will eventually lead to local elimination of the inferior competitor. - Ecological niche – An organism’s ecological “job”, Sum of a spp’s total use of biotic and abiotic resources in its environment. - Resource partitioning – When more then 1 spp share the same ecological niche – and does not lead to local extinction – one spp’s niche becomes modified. Enables similar spp to coexit in a community. - Character displacement – Resource partitioning among overlapping species in an area. The tendency of characteristics to be more divergent in overlapping populations of two spp’s . - Predation – (+,-) – Behavioral defences for prey, alarm calls, Active self defense, Morphological and Physiological defensive adaptations, - Cryptic coloration – or Cameouflage. Hide in plane sight - Apeosematic coloration – Bright red and black color – Warns of chemical defences. - Batesian Mimicry – Mimicking appearance or action of an another – Mimick warning signs. - Mullerian Mimicry – when two or more unplatable spp resemble each other – Yellow jacket and Cuckoo bee. Apeosematic coloration mimickry. -
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This note was uploaded on 04/17/2008 for the course BIO 201 taught by Professor Morris during the Spring '08 term at Canisius College.

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chap 53 vocab - Interpsecific competition When ssp compete...

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