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Psy307 Evol p.12-22

vocab

TermDefinition
William D. Hamilton theory of inclusive fitness (1964)
inclusive fitness theory sum of an individual's reproductive success (classical fitness) plus the effects the individual's actions have on the success of genetic relatives
genetic relatedness .5-sibling, .25-grandparents and grandchildren, .125-first cousins, etc.
gene's eye thinking how would gene facilitate it's replication
genetic replication vehicle survival, vehicle reproduction, reproduction of vehicles with copies
adaptations promote inclusive fitness
George C. Williams wrote Adaptation and Natural Selection (1966)
group selection adaptations evolved for the group benefit through the differential survival and reproduction of groups (weak support)
adaptations evolved solutions to specific problems that contribute directly or indirectly to successful reproductions
adaptations criteria reliability, efficiency, economy
reliability mechanism develops in most members
efficiency solve adaptive problem
economy without huge costs
improbable usefulness function too precise to have arisen by chance alone
Robert Trivers reciprocal altruism among nonkin (1971), parental investment theory (1972), parent-offspring conflict (1974)
Edward O. Wilson Sociobiology: The New Synthesis (1975)
Sociobiology: The New Synthesis synthesis of cellular biology, integrative neurophysiology, ethology, comparative psychology, population biology, and behavioral ecology
genetic determanism behavior is controlled exclusively by genes with little environmental influence
interactionist framework evolved adaptations and environmental input that triggers the development and activation of these adaptations
friction free environments prevent the activation of underlying callus-triggers mechanisms
alter social behavior with knowledge of evolved social psychological adaptation and social inputs
current adaptive mechanisms not optimally designed
evolutionary time lags existing humans designed for previous environments
costs of adaptation selection favors a mechanism when the benefits outweigh the costs relative to other designs
vertebrates 500 million years ago
primates 85 million years ago
apes 35 million years ago
bipedal primate 4.4 million years ago
stone tools (Oldowan) 2.5 million years ago
human common ancester 150 thousand years ago
mammals 200 million years ago
placental mammals 114 million years ago
homo habilis 1.8 million years ago (handy man)
Created by: james22222222
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