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owingslecture12 - Owings PSC 101 Lectures recorded posted...

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1 Owings - PSC 101 Lectures recorded & posted at web site Pdf’s of Powerpoints posted at web site Exam is mostly lecture, but also a few from uncovered readings Videos also available via a web link. Name: psc101 Password: annulatus Reproductive and Social Behavior Chapter 17 Themes Biological systems organized at multiple levels Two-way interplay between levels Molecules cells tissues organs organ systems organisms reproductive units, or parent + offspring social groups populations species communities Explore reproductive & social behavior from this perspective (individual & social system) Mating systems Much variation across species in form Classification- based on number of mates per individual Monogamy - 1 male with 1 female Polygamy - individuals of one sex mate with multiple individuals of another sex more diverse then monogamy Subdivided - polygyny; polyandry
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2 Polygamy Polygyny - 1 male, multiple females; more diverse where resources/mates are economically defendable Economic defendability (Brown; Emlen & Oring) resource defense - e.g. wildebeest female defense - e.g. sea lions Where neither resources nor mates are economically defendable male dominance - includes leks, e.g. black grouse x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Economic Defendability vs Polygamy Polygyny - 1 male, multiple females, more diverse where resources are economically defendable Economic defendability (Brown; Emlen & Oring) resource defense - e.g. wildebeest female defense - e.g. sea lions Where neither resources nor mates are economically defendable male dominance - includes leks, e.g. black grouse
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3 Polygamy Polygyny - 1 male, multiple females, more diverse where resources are economically defendable Economic defendability (Brown; Emlen & Oring) resource defense - e.g. wildebeest female defense - e.g. sea lions Where neither resources nor mates are economically defendable male dominance - includes leks, e.g.
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