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 1.0 O 6.0 5.0 4.0 Wealthier half of population 2.0 Mean number of children born per female 3.0 40 1.0 Poorer half of population 0 1 10 20 30 40 50 60 70 80 10 20 30 40 Age of mother 50 60 Age of father 7 Reproductive success ...
... population 1.0 O 6.0 5.0 4.0 Wealthier half of population 2.0 Mean number of children born per female 3.0 40 1.0 Poorer half of population 0 1 10 20 30 40 50 60 70 80 10 20 30 40 Age of mother 50 60 Age of father 7 Reproductive success ...
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