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DEPE | Séminaires BEEPSS / BEEPSS Seminars » Evolution of the Stress axis in North American Ground Squirrels

Evolution of the Stress axis in North American Ground Squirrels

Last update: : Monday 13 February 2017, by Nicolas Busser

Par : Rudy Boonstra, University of Toronto Scarborough
Date : jeudi 13 juillet 2017 de 16h à 17h30
Lieu : IPHC, Amphithéâtre Grünewald, bâtiment 25

Comparative physiologists often hypothesize that animals facing similar problems will have similar solutions: that is, we expect general patterns to emerge. The alternative hypothesis is that few, if any, patterns will emerge because each species is able to so finely manipulate its physiology that there are any number of solutions to the same problem. We studied stress axis (hypothalamic-pituitary-adrenal axis) function over the course of the mating period in males of five closely related North American ground squirrel species whose life histories are well known. Our evidence support the alternative hypothesis: generality is illusive.

www.utsc.utoronto.ca/~boonstra