• Hypothalamic–pituitary–adrenal (HPA) axis function in the California mouse (Peromyscus californicus): Changes in baseline activity, reactivity, and fecal excretion of glucocorticoids across the diurnal cycle

      Harris, Breanna N.; Saltzman, Wendy; de Jong, Trynke R.; Milnes, Matthew R. (2012)
      The California mouse, Peromyscus californicus, is an increasingly popular animal model in behavioral, neural, and endocrine studies, but little is known about its baseline hypothalamic–pituitary–adrenal (HPA) axis activity or HPA responses to stressors. We characterized plasma corticosterone (CORT) concentrations in P. californicus under baseline conditions across the diurnal cycle, in response to pharmacological manipulation of the HPA axis, and in response to a variety of stressors at different times of day....
    • Vocal cues to male androgen levels in giant pandas

      Charlton, Benjamin D.; Keating, Jennifer L.; Kersey, David; Rengui, Li; Huang, Yan; Swaisgood, Ronald R. (2011)
      Little is known about the potential of non-human mammal vocalizations to signal information on the hormonal status of the caller. In the current study, we used endocrine data and acoustic analyses to determine whether male giant panda bleats provide reliable information about the caller's current androgen levels. Our results revealed significant relationships between acoustic features of male giant panda bleats and the caller's faecal androgen metabolite concentrations….