Linked Life Data

3065802

Source:http://linkedlifedata.com/resource/pubmed/id/3065802

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1989-3-23
pubmed:abstractText
Pairs of female hamsters were acclimated to seminatural enclosures and permitted to interact for brief periods on days 12-14 of gestation or on days 2-4 of lactation. In one experimental paradigm, food was provided in excess of the daily requirements while in a second, food rations were restricted. Control females were similarly housed and fed but were not exposed to another animal. Paired females readily established dominant-subordinate relationships. Dominant females successfully removed food from the subordinate females and, as a result, accumulated larger food hoards. Subordinate females gave birth to fewer pups than either dominant or subordinate animals when social interactions occurred late in pregnancy and maintained smaller litters when interactions occurred during lactation. Reductions in the fecundity of subordinate females were more pronounced when the food ration was restricted. Under ad lib feeding conditions dominant females also maintained fewer young than control animals, but when food was restricted they were more successful than the control group. Subordinate females successfully defended their burrows against intrusions by dominant animals; maternal cannibalism accounted for most reductions in litter size. These results suggest that a defensible burrow and the acquisition of a food hoard are essential for successful reproduction in this species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0031-9384
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
313-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Social dominance and reproductive success in pregnant and lactating golden hamsters (Mesocricetus auratus) under seminatural conditions.
pubmed:affiliation
Department of Biology, Princeton University, NJ 08544.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't