Lactating red squirrels experiencing high heat load occupy less insulated nests

Biology Letters

Volumn 5, Issue 2, 2009, Pages 166-168

  Guillemette, Christina U ^a   Fletcher, Quinn E ^a   Boutin, Stan ^b   Hodges, Ryan M ^c   McAdam, Andrew G ^d   Humphries, Murray M ^a  

^a MCGILL UNIVERSITY   (Canada)

^b UNIVERSITY OF ALBERTA   (Canada)

^c University of Guelph ^*  (United States)

^d UNIVERSITY OF GUELPH   (Canada)

Author keywords

Endothermy; Heat dissipation limit hypothesis; Heat stress; Parental care

Indexed keywords

ENDOTHERMY; ENERGY DISSIPATION; ENERGY FLOW; HYPOTHESIS TESTING; INSULATION; LACTATION; LITTER; NESTING BEHAVIOR; PARENTAL CARE; RODENT;

ANIMAL EXPERIMENT; ARTICLE; ENVIRONMENTAL TEMPERATURE; FEMALE; HEAT LOSS; HEAT STRESS; HEAT TRANSFER; LACTATION; NESTING; NONHUMAN; PREDICTION; PRIORITY JOURNAL; PROGENY; SQUIRREL; ANIMAL; HEAT; PHYSIOLOGY; PREGNANCY; PSYCHOLOGICAL ASPECT; SCIURIDAE;

MAMMALIA; SCIURIDAE; TAMIASCIURUS; TAMIASCIURUS HUDSONICUS;

ANIMALS; FEMALE; HOT TEMPERATURE; LACTATION; NESTING BEHAVIOR; PREGNANCY; SCIURIDAE;

EID: 65349125885     PISSN: 17449561     EISSN: 1744957X     Source Type: Journal    
DOI: 10.1098/rsbl.2008.0592     Document Type: Article

References (16)

1. Bacigalupe, L. D. & Bozinovic, F. 2002 Design, limitations and sustained metabolic rate: lessons from small mammals. J. Exp. Biol. 205, 2963-2970.
2. Bronson, F. H. 1985 Mammalian reproduction: an ecological perspective. Biol. Reprod. 32, 1-26.
3. Clutton-Brock, T. H. 1991 The evolution of parental care. Princeton, NJ: Princeton University Press.
4. Farmer, C. G. 2000 Parental care: the key to understanding endothermy and other convergent features in birds and mammals. Am. Nat. 155, 326-334.
5. Hammond, K. A. & Diamond, J. 1997 Maximal sustained energy budgets in humans and animals. Nature 386, 457-462. (doi:10.1038/386457a0) (Pubitemid 27164065)
6. Knight, F. M. 1987 The development of pelage insulation and its relationship to homeothermic ability in an altricial rodent Peromyscus leucopus. Physiol. Zool. 60, 181-190.
7. Koteja, P. 2000 Energy assimilation, parental care and the evolution of endothermy. Proc. R. Soc. B 267, 479-484. (doi:10.1098/rspb.2000.1025) (Pubitemid 30148214)
8. Król, E. & Speakman, J. R. 2003 Limits to sustained energy intake. VI. Energetics of lactation in laboratory mice at thermoneutrality. J. Exp. Biol. 206, 4255-4266.
9. Król, E., Murphy, M. & Speakman, J. R. 2007 Limits to sustained energy intake. X. Effects of fur removal on reproductive performance in laboratory mice. J. Exp. Biol. 210, 4233-4243.
10. Lamprecht, I. & Schmolz, E. 2004 Thermal investigations of some bird nests. Thermochim. Acta 415, 141-148.
11. McAdam, A. G., Boutin, S., Sykes, A. K. & Humphries, M. M. 2007 Life histories of female red squirrels and their contributions to population growth and lifetime fitness. Écoscience 14, 362-369. (doi:10.2980/1195- 6860(2007)14[362:LHOFRS]2.0.CO;2) (Pubitemid 47559494)
12. Newkirk, K. D., Cheung, B. L. W., Scribner, S. J. & Wynne-Edwards, K. E. 1998 Earlier thermoregulation and consequences for pup growth in the Siberian versus Djungarian dwarf hamster (Phodopus). Physiol. Behav. 63, 435-443.
13. Puchalski, W., Bulova, S. J., Lynch, C. B. & Lynch, G. R. 1988 Photoperiod, temperature and melatonin effects on thermoregulatory behavior in Djungarian hamsters. Physiol. Behav. 42, 173-177. (doi:10.1016/0031-9384(88) 90294-6) (Pubitemid 18044311)
14. Redman, P., Selman, C. & Speakman, J. R. 1999 Male short-tailed field voles (Microtus agrestis) build better insulated nests than females. J. Comp. Physiol. B 169, 581-587. (doi:10.1007/s003600050258) (Pubitemid 30018246)
15. Speakman, J. R. 1997 Doubly-labelled water: theory and practice. Dordrecht, The Netherlands: Kluwer Academic.
16. Thompson, S. D. 1992 Gestation and lactation in small mammals: basal metabolic rate and the limits of energy use. In Mammalian energetics: interdisciplinary views of metabolism and reproduction (eds T. E. Tomasi & T. H. Horton), pp. 213-259. New York, NY: Cornell University Press.