Animal Behavior: An Evolutionary Approach |
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Page 254
... Status ? The ground rule for a territorial species is that individuals that fail to maintain a territory fail to reproduce . This raises an evolution- ary puzzle ; why do subordinate individuals so often accept their role in life ...
... Status ? The ground rule for a territorial species is that individuals that fail to maintain a territory fail to reproduce . This raises an evolution- ary puzzle ; why do subordinate individuals so often accept their role in life ...
Page 388
... status . In the cricket Teleogryllus commodus , females accept from their males sperm encapsulated in a small spermatophore . After the transfer of the sperma- tophore ( which is accomplished promptly ) , a female becomes " restless ...
... status . In the cricket Teleogryllus commodus , females accept from their males sperm encapsulated in a small spermatophore . After the transfer of the sperma- tophore ( which is accomplished promptly ) , a female becomes " restless ...
Page 491
... status with a ready - made clan of helpers to assist them . It is the possibility of inheriting a flock of helpers that makes it attractive for some nonrelatives to attempt to join an established group . These indi- viduals come from ...
... status with a ready - made clan of helpers to assist them . It is the possibility of inheriting a flock of helpers that makes it attractive for some nonrelatives to attempt to join an established group . These indi- viduals come from ...
Contents
NATURAL SELECTION | 5 |
Alternative Hypotheses | 11 |
Experimental Tests of Evolutionary Predictions | 17 |
Copyright | |
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ability activity adaptive adult alarm calls allele animal behavior anole ants aphids bees Behavioral Ecology benefits biological birds black-headed gull bluegill brain breeding butterfly cells Chapter colony Color competition cooperation copulate courtship cues cycle damselfly defense detect developmental display dominant effects eggs environment evolution evolutionary evolved example experience feeding female's fertilize Figure flies foraging gametes genes genetic genotype gulls habitat hive honeybee hormonal human hypothesis inclusive fitness individuals infanticide insects kin selection kittiwake larvae living male's males and females mate mechanisms moth nectar nervous system nest neural neurons offspring parental pattern pheromone Photograph physiological polyandry polygyny population potential predators prediction prey produce progeny rats reared receptive receptors relatively reproductive success response Science sensory sexual selection signals snakes social Sociobiology song sounds species sperm stimulation strategy survival territory testosterone toad traits wasp white-crowned sparrow wings workers young