Creagh Breuner, Ph.D.

Photo of Dr. Creagh Breuner; Montana - Ecology of Infectious Disease (M-EID) Faculty Member

Position

Assistant Professor, Organismal Biology and Ecology

Ph.D

Behavioral Endocrinology, University of Washington, 1998

BA/BS

Zoology, University of Washington, 1991

CV

Breuner CV

Lab Page

Breuner webpage

Current Research

Animals live in rapidly changing and unpredictable environments. The ability to respond appropriately to unpredictable changes is critical for survival and reproduction. My research focuses on the behavioral and physiological changes that occur in response to unpredictable events (stressors), the hormonal and cellular mechanisms that underlie these changes, and the ecological repercussions of these changes for animals in their natural environment. I focus my studies on the adrenocortical response to stress, and the behavioral and cellular actions of glucocorticoids in three species of birds, the white-crowned sparrow (Zonotrichia leucophrys), the white-throated sparrow (Zonotrichia albicollis), and the house sparrow (Passer domesticus).

Recent Publications

Wada, H. Salvante, K.G., Wagner, E.C., Williams, T.D., and Breuner, C.W. (in review) Ontogeny and individual variation in the adrenocortical response of zebra finch (Taeniopygia guttata) nestlings. General and Comparative Endocrinology

Wada, H. and Breuner, C.W. (in review) Transient elevation of corticosterone alters begging behavior and growth of white-crowned sparrow nestlings. Journal of Experimental Biology

Wada, H., Hahn, T.P., and Breuner, C.W. (2007) Development of stress reactivity in white-crowned sparrow nestlings: total corticosterone response increases with age, while free corticosterone response remains low. General and Comparative Endocrinology 150(3): 405-413

Lynn, S.E., Hahn, T.P., and Breuner, C.W. (2007) Free-living male mountain white-crowned sparrows exhibit territorial aggression without modulating total or free plasma testosterone. Condor 109(1): 173-180

Ward, C., Fontes, C., Breuner, C., and Mendonca, M. (2007) Characterization and quantification of corticosteroid binding globulin in a southern toad, Bufo terrestris, exposed to coal combustion waste General and Comparative Endocrinology 152 (1): 82-88