11Parent06x

11Parent06x - Survive, eat, attract mate, mate & run away...

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Parental care Survive, eat, attract mate, mate & run away or …
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An aside:   Language of behaviourists Proximate: mechanisms of how decision is made (e.g., choose because visually appealing; initiates cascade of neural impulses, hormones, …) Ultimate “Choose visually attractive mates because they will provide more care to offspring” organism need not be aware of consequences of decision, but ultimate wording can be misinterpreted
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Types of parental care? 1. acquiring & defending resources on which young eventually raised (vs. lek) 2. nutrients a. guard ♀ as she acquires nutrients (ducks) (vs. paternity assurance) b. courtship feeding (arthropods, terns) c. spermatophore (crickets, salamanders) d. yolk ( Daphnia , insects, . .., birds)
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e. body parts (mites hatch inside ma & eat her insides out; sharks feed on eggs or each other in reproductive tract) f. secretions (disk fish cichlid, milk) g. puking, whole food 3. heat (incubation): helpful in ectotherms,   essential in endotherms
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This note was uploaded on 02/08/2010 for the course BIOL 3143 taught by Professor Daveshutler during the Winter '10 term at Acadia.

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11Parent06x - Survive, eat, attract mate, mate & run away...

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