Animal Behavior: An Evolutionary Approach |
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Page 9
... population of lemmings , many of whom truly do commit suicide when population density is high . Now imagine that a mutation occurs in a member of this group that happens to cause its carrier to reproduce whenever possible , even at ...
... population of lemmings , many of whom truly do commit suicide when population density is high . Now imagine that a mutation occurs in a member of this group that happens to cause its carrier to reproduce whenever possible , even at ...
Page 50
... populations ( Arnold did that , too ) , there is much more variation in the resulting group of offspring than in either parental population , although the majority of the snakes are slug - refusing . These results confirm that the ...
... populations ( Arnold did that , too ) , there is much more variation in the resulting group of offspring than in either parental population , although the majority of the snakes are slug - refusing . These results confirm that the ...
Page 528
... population 3.0 2.0 Poorer half of population 1.0 1 10 20 30 40 50 60 70 80 Mean number of children born per female 6.0 5.0 Wealthier half of population 4.0 3.0 2.0 1.0 Poorer half of population 1 10 20 30 40 50 60 Age of mother Age of ...
... population 3.0 2.0 Poorer half of population 1.0 1 10 20 30 40 50 60 70 80 Mean number of children born per female 6.0 5.0 Wealthier half of population 4.0 3.0 2.0 1.0 Poorer half of population 1 10 20 30 40 50 60 Age of mother Age of ...
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