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5 Cards in this Set

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Individual Selection
The animal itself benefits from the helping behavior or mutualism-both benefit
alarm calling in meercats provides protection for th caller. Courtship display in long-tailed manakins-the helper eventually becomes the breeder
Kin selection
The behavior of an animal may increase the reproductive success of relatives who share many genes in common with that animal-next generationin an individual's own offspring plus the offspring of relatives that are alive because of helping behavior- helping at the nest in Flordia scrub Jays. Helpers help the parents provide food to nestlings and protect them from predators
Alarm calling -greater risk to themselves to protect the young.
Reciprocal altruism
Vampire bats will share food with members of their groupwho have not successfully foraged. Primates form alliances and call on assistance. long-term social groups provides stability.
potential cost to males of engaging in polygyny
energy needed to maintain territory
What kind of selection do we see in pipe fish?
males are selective and will chose larger, more ornamental females