Daily energy expenditure during lactation is strongly selected in a freeliving mammal
نویسندگان
چکیده
selected in a free-living mammal Quinn E. Fletcher*, John R. Speakman, Stan Boutin, Jeffrey E. Lane, Andrew G. McAdam, Jamieson C. Gorrell, David W. Coltman and Murray M. Humphries Department of Natural Resource Sciences, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada; Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen,AB24 2TZ, UK; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, 1 West Beichen Road Chaoyang, Beijing 100080, China; Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada; and Department of Integrative Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada;
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The energetics of lactation in cooperatively breeding meerkats Suricata suricatta.
Species may become obligate cooperative breeders when parents are unable to raise their offspring unassisted. We measured the daily energy expenditure of mothers, helpers and offspring during peak lactation in cooperatively breeding meerkats Suricata suricatta using the doubly labelled water technique. Lactating mothers expended more energy per day than allo-lactating subordinate females, non-l...
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