Animal Behavior: An Evolutionary Approach |
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Page 66
... white - crowned sparrow song , and by a deafened sparrow . These experiments indicate that a male white - crown must hear other males singing if it is to produce a detailed full song when it is mature . The isolated male , like the male ...
... white - crowned sparrow song , and by a deafened sparrow . These experiments indicate that a male white - crown must hear other males singing if it is to produce a detailed full song when it is mature . The isolated male , like the male ...
Page 181
... White- Crowned Sparrow Although white - crowned sparrows may or may not have an annual clock mechanism , they are faced with profound sea- sonal changes in conditions that make changes in behavioral priorities highly adaptive . Imagine a ...
... White- Crowned Sparrow Although white - crowned sparrows may or may not have an annual clock mechanism , they are faced with profound sea- sonal changes in conditions that make changes in behavioral priorities highly adaptive . Imagine a ...
Page 187
... white - crowned sparrows . Al- though both factors affect the onset of reproduction in these animals , tem- perature is of paramount importance for the anole , whereas photoperiod is more critical for the sparrow . Because white ...
... white - crowned sparrows . Al- though both factors affect the onset of reproduction in these animals , tem- perature is of paramount importance for the anole , whereas photoperiod is more critical for the sparrow . Because white ...
Contents
NATURAL SELECTION | 5 |
Alternative Hypotheses | 11 |
Experimental Tests of Evolutionary Predictions | 17 |
Copyright | |
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ability activity adaptive adult allele animals anole ants aphids attack auditory bank swallows bees Behavioral Ecology benefits biological birds black-headed gull brain breeding burrow butterfly Chapter colony Color copulate courtship cues cycle damselfly defense detect developmental dominant ecological effects eggs energy environment environmental evolution evolutionary evolved example experience feeding female's fertilize Figure flies foraging gametes ganglion genes genotype gulls habitat honeybee hormonal human hypothesis inclusive fitness individuals infanticide insects interactions kin selection kittiwake larvae living male's males and females mate mechanisms moth mutant nervous system nest neural neurons offspring parental pattern Photograph physiological polygyny population potential predators prediction prey produce progeny rats receptive receptors relatively reproductive success response result selection sensory sexual sexual reproduction sexual selection signals slug snakes social Sociobiology song sounds species sperm stimulation survival territory testosterone toad traits visual wasp white-crowned sparrow wings workers young