Pesticide effects on body temperature of torpid/hibernating rodents (Peromyscus leucopus and Spermophilus tridecemlineatus)

Tomasi, Thomas E. and Elsken-Lacy, Peta and Perry, Jean A. and Withers, Kerry (2004) Pesticide effects on body temperature of torpid/hibernating rodents (Peromyscus leucopus and Spermophilus tridecemlineatus). In: 12th International Hibernation Symposium, 25-31 July 2004, Alaska, USA.

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Abstract

Environmental contaminants have been shown in the lab to alter thyroid hormone concentrations. Despite the role these hormones play in the physiological ecology of small mammals, no one has investigated the possible effects of thyroid-disrupting chemicals on mammalian thermal ecology and thermoregulatory ability. Because the energetic impact of such a disruption is likely to be most dramatic during times already energetically stressful, we investigated the effects of two common pesticides (atrazine and lindane) on the use of daily torpor in white-footed mice, and the use of hibernation in 13-lined ground squirrels. Fortunately, we found that these strategies for over-wintering success were not impaired.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited with permission of publisher.
Depositing User: Dr Kerry Withers
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 01:20
Last Modified: 02 Jul 2013 22:49
Uncontrolled Keywords: pesticides, hibernation, mammal ecology, torpor, rodents
Fields of Research (FOR2008): 06 Biological Sciences > 0606 Physiology > 060699 Physiology not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/3093

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