Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
A Testosterone-Mediated Trade-Off Between Parental and Sexual Effort in Male Mongolian Gerbils (Meriones unguiculatus )
Ist Teil von
Journal of comparative psychology (1983), 1999-12, Vol.113 (4), p.388-395
Ort / Verlag
United States: American Psychological Association
Erscheinungsjahr
1999
Quelle
MEDLINE
Beschreibungen/Notizen
Effects of testosterone (T) on parental behavior of male
Mongolian gerbils (
Meriones
unguiculatus
) were examined. After
undergoing gonadectomy, castrated males were implanted with empty
capsules or capsules containing T; sham-operated males were
implanted with empty Silastic capsules. Subsequently, each male was
paired with a pregnant female, and after delivery, families were
observed 15 min/day for 20 days. Gonadectomized males without T
spent more time in contact with, huddling over, and licking pups
than did either sham-operated males or gonadectomized males with T.
When given a choice between nest sites and displaced pups, females
and males with low T preferred pups, whereas intact males and
castrated males with T preferred nest sites. The findings are
consistent with
E. D. Ketterson and V. Nolan's (1994)
hypothesis implicating T in mediating trade-offs between parental
and sexual effort.