CARR, J.A.*; BROWN, C.L.; MANSOURI, R.; VENKATESAN, S.: Stress, neuropeptides, and feeding behavior: an evolutionary perspective. Stress inhibits feeding behavior in all vertebrates. Data from mammals suggest an important role for hypothalamic neuropeptides, in particular the melanocortins and corticotropin-releasing hormone (CRH), in mediating stress-induced anorexia. The effects of CRH on food intake are evolutionarily ancient, […]
sessions: S9b
Stress and pacific salmon A new look at the role of cortisol in olfaction and home-stream migration
Carruth, L.L.*; Jones, R.E.; Norris, D.O.: Stress and pacific salmon: A new look at the role of cortisol in olfaction and home-stream migration Pacific salmon (genus Oncorhynchus) exhibit an interesting and uncommon life-history pattern that combines semelparity, anadromy, and navigation (homing). During smoltification, young salmon imprint on the chemical composition of their natal stream water […]
Stress & The Augmentation of Immune Function
DHABHAR, F.S.: Stress & The Augmentation of Immune Function Stress may be defined as a sequence of events, that begins with a stimulus (stressor), that is recognized by the brain (stress perception), and which results in the activation of physiologic systems within the body (stress response). Many evolutionary selection pressures are stressors, and one of […]
Social Interaction over Time, Implications for Stress Responsiveness
SUMMERS, CLIFF H: Social Interaction over Time, Implications for Stress Responsiveness Behavioral interaction during social situations is a continuum of action, response, and reaction. The temporal nature of social interaction creates a series of stressful situations, such as aggression, displacement from resources, and the persistent psychological threat accompanying social hierarchy. The ebb and flow of […]
Corticosterone and inclement weather mechanisms underlying adaptive behavioral responses in mountain birds
Breuner, C. W.*; Hahn, T. P.: Corticosterone and inclement weather: mechanisms underlying adaptive behavioral responses in mountain birds. In seasonally-breeding migratory birds, the drive to arrive early and establish a territory on the breeding grounds carries with it the potential benefit of improved reproductive success, but also the risk of encountering potentially life-threatening inclement weather. […]