ANT 201 Chapter Notes - Chapter 16: Cooperative Breeding, Coronary Circulation, Sympathetic Nervous System
11 Dec 2016
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Document Summary
Top-down despotic hierarchies: resource access skewed (social. Stability of social ranks subordination associated w/ greatest physiological indices of stress. Dominance through aggression: dominant have more stress. Dominance through intimidation: subordination related w/more stress. Cooperative breeding: equal stress b/w dominant & subordinates. Major hierarchical reorganization: dominant have social tensions most. Subordinate coping strategies coping outlets: social support (grooming, physical contact, coalition forming) Reasons for elevated stress hormone levels: high rates of being subjected to stressors, low availability of social support, minimal presence of kin. Inability to physically avoid dominant is associated w/ stress; varies by ecosystem. Go into state of arrested development in presence of dominant m. M to m competition for mating access: fierce, dangerous, cost of feeding & of affiliate behaviors. Adverse physiological profiles most pronounced among animals of the rank exposed to most physical & psychological stressors. Paucity of outlets after exposure to stressors.
