SPECIES INTERACTIONS CONT PP 403-404. PREDATION (+/-) one species eats another species predator: eater and prey: eaten Types: carnivores, herbivores.

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Presentation transcript:

SPECIES INTERACTIONS CONT PP

PREDATION (+/-) one species eats another species predator: eater and prey: eaten Types: carnivores, herbivores

cyclic in nature – ↑ in prey leads to ↑ in predators (vice versa) Adaptations in prey for defense against predators PREY: SEA URCHINS PREDATOR: SEA STARS

RESPONSES TO PREDATION camouflage: Cryptic coloration disguises an animal so it’s less visible to predators or prey

warning coloration: intended not to camouflage an organism but to make it more noticeable - Bright coloring, scent, or taste to warn potential aggressors

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

moment of truth defenses: action by prey just before death that is unexpected by predator

alluring coloration: animals are colored so a predator's attention is drawn to a non-vital part of the prey's body