Altruistic Behavior Or Mutualism

Front 1

Individual Selection

Back 1

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

Front 2

Kin selection

Back 2

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.

Front 3

Reciprocal altruism

Back 3

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.

Front 4

potential cost to males of engaging in polygyny

Back 4

energy needed to maintain territory

Front 5

What kind of selection do we see in pipe fish?

Back 5

males are selective and will chose larger, more ornamental females