Lecture 5. posted

Lecture 5 posted - P(eaten)=P(detection P(capture P(consumption Cryptic coloration ColorChange Can occur on a long timescale(months Or rapidly

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Costs of being cryptic: tied to particular habitats: Color Change: Can occur on a long timescale (months). . Or rapidly P (eaten)   =  P (detection )  + P (capture)  +  P (consumption) Cryptic coloration
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Decorator crabs take it with them… but still must move slowly for camouflage to be effective ome carry their camouflage Some don’t P (eaten)   =  P (detection )  + P (capture)  +  P (consumption) decorator crabs planthoppers stick insect
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Plant camouflage P (eaten)   =  P (detection )  + P (capture)  +  P (consumption)
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Avoiding detection: burrows P (eaten)   =  P (detection )  + P (capture)  +  P (consumption) Some remain in inaccessible locations Burrowing, habitat choice,….
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P (eaten)   = P (detection)  +  P (capture)  +  P (consumption)
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Wainwright and Richard 1995 Reducing the probability of capture: Refuges in  Size Fish Lrg. Invert Sm. Invert Plankton Prey size P (eaten)   = P (detection)  +  P (capture)  +  P (consumption) Individual size determines predator risk
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Safety in numbers… a reduced probability of capture in a gro Foraging Tradeoff? P (eaten)   = P (detection)  +  P (capture)  +  P (consumption)
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Animals can be chemically nasty,… particularly those that are slow or easily caught. So some advertise the fact that they are there and that they do not taste good P (eaten)   = P (detection)  + P (capture)  +  P (consumption)
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Animals also have “body armor”: shells, horns, spines, etc. P (eaten)   = P (detection)  + P (capture)  +  P (consumption)
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P (eaten)   =  P (detection)  +  P (capture)  +  P (consumption) Organisms often combine strategies
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Foxglove (Cardiac glycosides) Poison Oak/Ivy (urushiol) Thorns Trichomes (small hairs) P (eaten)   =  P (detection)  +  P (capture)  +  P (consumption) Unpalatable Physical defense
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Functional diversity, Part 3 Thermoregulation Definition of the niche
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This note was uploaded on 11/29/2010 for the course BIOLOGY 1211 taught by Professor Patricelli during the Spring '10 term at UC Davis.

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Lecture 5 posted - P(eaten)=P(detection P(capture P(consumption Cryptic coloration ColorChange Can occur on a long timescale(months Or rapidly

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