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Psc101 Owings 1

Psc101 Owings 1 - 1 Owings PSC 101 Lectures recorded&...

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Unformatted text preview: 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 • ClassiFcation- 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 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 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...
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Psc101 Owings 1 - 1 Owings PSC 101 Lectures recorded&...

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