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COMMUNITY ECOLOGY II PP
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PREDATION (+/-) one species eats another species
predator: eater and prey: eaten Types: carnivores, herbivores
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cyclic in nature – ↑ in prey leads to ↑ in predators (vice versa)
PREY: SEA URCHINS PREDATOR: SEA STARS cyclic in nature – ↑ in prey leads to ↑ in predators (vice versa) Adaptations in prey for defense against predators
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RESPONSES TO PREDATION
camouflage: Cryptic coloration disguises an animal so it’s less visible to predators or prey
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warning coloration: intended not to camouflage an organism but to make it more noticeable
- Bright coloring, scent, or taste to warn potential aggressors
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mimicry: physical (or behavioral resemblance) of one species to another
1. natural selection of a second moth species favors moths who look like the bad tasting species (bright colors) 2. color patterns may be similar
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moment of truth defenses: action by prey just before death that is unexpected by predator
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alluring coloration: animals are colored so a predator's attention is drawn to a non-vital part of the prey's body
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