Lecture3B

Lecture3B - Songbirds grow and develop extremely rapidly...

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OTHER EFFECTS OF EXPERIENCE ON BEHAVIOR • Learning during adulthood – Spatial memory for cached food – Sex differences in spatial learning ability – Biases to learn certain things and not others – Associative learning: • E.g., avoidance of inappropriate foods and noxious stimuli
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Clark’s nutcracker ( Nucrifraga columbiana )
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Pinyon jay ( Gymnorhinus cyanocephalus )
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scrub mexican pinyon nutcracker
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scrub nutcracker mexican pinyon
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Prairie voles ( Microtus ochrogaster )
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(polygynous)
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(monogamous)
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OTHER EFFECTS OF EXPERIENCE ON BEHAVIOR • Adaptive value of developmental flexibility – Morphology-behavior matching • E.g., limb development in Anolis
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Brown anole ( Anolis sagrei ) A “trunk-ground” anole
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OTHER EFFECTS OF EXPERIENCE ON BEHAVIOR • Developmental homeostasis – Consistency in development despite environmental differences • E.g., adjustment of brain function despite wiring disruption
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NUTRITION AND BEHAVIORAL DEVELOPMENT IN SONGBIRDS • Nutritional stress hypothesis
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Unformatted text preview: Songbirds grow and develop extremely rapidly Nutrition during brain development critical to optimal song behavior development Adult song behavior honest signal of quality Level of nutritional stress may vary Or response to given level of stress may vary Great reed warbler ( Acrocephalus arundinaceus ) GREAT REED WARBLERS Males produce elaborate songs GREAT REED WARBLERS Males produce elaborate songs Females select mates based on repertoire size GREAT REED WARBLERS Males produce elaborate songs Females select mates based on repertoire size Large-repertoire males have highest reproductive success GREAT REED WARBLERS Nestlings that grow best also develop largest song repertoires Song repertoire good indicator of male quality Either males had best nutrition as nestlings Or least affected by nutritional stress...
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Lecture3B - Songbirds grow and develop extremely rapidly...

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