01:119:115 Lecture 23: Lecture 23_ Animal Behavior
1 Dec 2017
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Document Summary
Behavior is: action carried out by muscles under control of nervous system, adaptations that aid survival, product of natural selection on phenotype, maximizes fitness. How a behavior occurs or is modified. 2: how do animal"s experiences influence response, ultimate causation. Why a behavior occurs in the context of natural selection. Ii. how does stimulus impact behavior: fixed action pattern, migration, unlearned behavior in response to a sign stimulus. Once initiated several steps carried to completed. Many behaviors occur at regular intervals linked to light and dark cycle. Crepuscular : most active at dawn, dusk, or both. Ex. breeding behaviors, migration and hibernation: signals and communication. Signal : behavior that causes a change in another animal"s behavior. Communication is the transmission and reception of mutually recognizable signals. Innate behavior : developmentally fixed and doesn"t vary among individuals-born that way. Other behaviors vary with experience and differ between individuals. Focus of this 2nd question of tinbergen"s.
