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Social stress and reproductive success in the female Syrian hamster: Endocrine and behavioral correlates

Chelini, Marie Odile Monier ; Palme, Rupert ; Otta, Emma

Physiology & Behavior, 24 October 2011, Vol.104(5), pp.948-954 [Peer Reviewed Journal]

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  • Title:
    Social stress and reproductive success in the female Syrian hamster: Endocrine and behavioral correlates
  • Author: Chelini, Marie Odile Monier ; Palme, Rupert ; Otta, Emma
  • Description: In many mammal species, reproduction is not shared equally among the members of a social unit. Even though reproductive skew seems unlikely in females of solitary species, this phenomenon could result from environmental factors. Although solitary in the wild, captive Syrian hamsters ( ) are generally housed in groups. We investigated whether social stress produces some degree of reproductive skew in this solitary species and whether female reproductive success varies as a function of social rank. To assess the physiological relationship between social stress and fertility, we monitored reproductive hormones and glucocorticoids of solitary and pair-housed females during pregnancy by means of recently established non-invasive methods for measuring hormone metabolites in the feces. The patterns of fecal progesterone, estrogen and glucocorticoid metabolites were similar to those found in blood and reported in the literature for pregnant hamsters. As expected, dominant...
  • Is Part Of: Physiology & Behavior, 24 October 2011, Vol.104(5), pp.948-954
  • Identifier: ISSN: 0031-9384 ; E-ISSN: 1873-507X ; DOI: 10.1016/j.physbeh.2011.06.006
  • Subjects: Hamster ; Social Stress ; Reproductive Success ; Sociobiology ; Cortisol ; Estrogens ; Progesterone ; Fecal Metabolites ; Non-Invasive Monitoring ; Endocrinology ; Anatomy & Physiology ; Psychology
  • Language: English
  • Source: ScienceDirect Journals (Elsevier)

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