Advertisement

Journal of Chemical Ecology

, Volume 17, Issue 7, pp 1333–1341 | Cite as

Measurement of short-term changes in heart rate and in plasma concentrations of cortisol and catecholamine in a small marsupial

  • D. Michael Stoddart
  • A. J. Bradley
Article

Abstract

Using a chronically placed jugular catheter and a silver electrode, it was possible to monitor short-term changes in the plasma concentration of cortisol and catecholamine in the marsupial sugar glider (Petaurus breviceps) and to monitor both heart and respiration rates. Males judged to be low in the social hierarchy of a particular group were exposed to the whole-body odor of a dominant male from the same social group, a foreign dominant male, or a castrate male. While there was no evidence of a change in any of the physiological parameters when a male was exposed to either a castrate male or a female, a rapid increase occurred in heart rate and plasma concentrations of cortisol, glucose and catecholamine when the donor was a dominant male from the same or a different social group.

Key Words

Sugar glider Petaurus breviceps Marsupialia heart rate respiration rate stress cortisol catecholamine 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bambino, T., andHseuh, A. 1981. Direct inhibitory effect of glucocorticoids upon testicular luteinizing hormone receptors and steriodogenesis in vivo and in vitro.Endocrinology 108:2142–2153.Google Scholar
  2. Bradley, A.J. 1987. Stress and mortality in the red-tailed phascogalePhascogale calura (Marsupialia: Dasyuridae).Gen. Comp. Endocrinol. 67:85–100.Google Scholar
  3. Bradley, A.J. 1990. Failure of glucocorticoid feedback during breeding in the male red-tailed phascogalePhascogale calura (Marsupialia: Dasyuridae).J. Steroid Biochem. 37:155–163.Google Scholar
  4. Bradley, A.J., andStoddart, D.M. 1990. Metabolic effects of cortisol, corticotrophin and adrenalin in the marsupial sugar glider,Petaurus breviceps (Marsupialia: Petauridae).J. Endocrinol. 127:203–212.Google Scholar
  5. Brain, P.F., andNowell, N.W. 1970. The effects of differential grouping on endocrine function in mature male albino mice.Physiol. Behav. 5:907–910.Google Scholar
  6. Eberhart, J.A., Keverne, E.B., andMeller, R.E. 1980. Social influences on plasma testosterone levels in male talapoin monkeys.Harm. Behav. 15:247–266.Google Scholar
  7. Hugget, A., andNixon, D.A. 1957. Enzymic determination of blood glucose. Biochem. J. 66:12P.Google Scholar
  8. Hulse, G., andColeman, G. 1983. The role of endogenous opioids in the blockade of reproductive function in the rat following exposure to acute stress.Pharmacol. Biochem. Behav. 19:795–801.Google Scholar
  9. Johnson, B., Welsh, T., andJuniewicz, P. 1982. Suppression of luteinizing hormone and testosterone secretion in bulls following adrenocorticotropin hormone treatment.Biol. Reprod. 26:305–310.Google Scholar
  10. Lee, A.K., andMcDonald, I.R. 1985. Stress and population regulation in small mammals, pp. 261–304. in Oxford Reviews of Reproductive Biology. Oxford University Press, Oxford.Google Scholar
  11. McNeilly, A., Sharpe, R., andFraser, H. 1983. Increased sensitivity to the negative feedback effect of testosterone induced by hyperprolactinemia in the adult male rat.Endocrinology 112:22–28.Google Scholar
  12. Mykytowycz, R. 1973. Reproduction in mammals in relation to environmental odours.J. Reprod. Fertil. Suppl. 19:433–446.Google Scholar
  13. Rose, R., andSachar, E. 1982. Psychoendocrinology, p. 1383, in R.H. Williams (ed.). Textbook of Endocrinology. W.B. Saunders, Philadelphia.Google Scholar
  14. Rose, R.M., Holoday, J.W., andBernstein, I.S. 1971. Plasma testosterone, dominance rank and aggressive behaviour in male rhesus monkeys.Nature 231:366–368.Google Scholar
  15. Sapolsky, R.M. 1985. Stress-induced suppression of testicular function in the wild baboon: Role of glucocorticoids.Endocrinology 116:2273–2278.Google Scholar
  16. Schilling, A., Perret, M., andPredine, J. 1984. Sexual inhibition in a prosimian primate: A pheromone-like effect.J. Endocrinol. 102:143–151.Google Scholar
  17. Scott, M.P. 1986. The timing and synchrony of seasonal breeding in the marsupialAntechinus stuartii: Interaction of environmental and social cues.J. Mammal. 67:551–560.Google Scholar
  18. Scott, M.P. 1987. The effects of mating and agonistic experience on adrenal function and mortality of maleAntechinus stuartii (Marsupialia).J. Mammal. 68:479–486.Google Scholar

Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • D. Michael Stoddart
    • 1
  • A. J. Bradley
    • 1
  1. 1.Department of ZoologyUniversity of TasmaniaHobartAustralia

Personalised recommendations