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Author (up) Nguyen, N.; Van Horn, R.; Alberts, S.; Altmann, J. doi  openurl
  Title “Friendships” between new mothers and adult males: adaptive benefits and determinants in wild baboons (Papio cynocephalus) Type Journal Article
  Year 2009 Publication Behavioral Ecology and Sociobiology Abbreviated Journal Behav. Ecol. Sociobiol.  
  Volume 63 Issue 9 Pages 1331-1344  
  Keywords Biomedical and Life Sciences  
  Abstract Close associations between adult males and lactating females and their dependent infants are not commonly described in non-monogamous mammals. However, such associations [sometimes called friendships (Smuts 1985)] are regularly observed in several primate species in which females mate with multiple males during the fertile period. The absence of mating exclusivity among friends suggests that males should invest little in infant care, raising questions about the adaptive significance of friendship bonds. Using data from genetic paternity analyses, patterns of behavior, and long-term demographic and reproductive records, we evaluated the extent to which friendships in four multi-male, multi-female yellow baboon (Papio cynocephalus) groups in Amboseli, Kenya represent joint parental care of offspring or male mating effort. We found evidence that mothers and infants benefited directly from friendships; friendships provided mother–infant dyads protection from harassment from other adult and immature females. In addition, nearly half of all male friends were the genetic fathers of offspring and had been observed mating with mothers during the days of most likely conception for those offspring. In contrast, nearly all friends who were not fathers were also not observed to consort with the mother during the days of most likely conception, suggesting that friendships between mothers and non-fathers did not result from paternity confusion. Finally, we found no evidence that prior friendship increased a male’s chances of mating with a female in future reproductive cycles. Our results suggest that, for many male–female pairs at Amboseli, friendships represented a form of biparental care of offspring. Males in the remaining friendship dyads may be trading protection of infants in exchange for some resources or services not yet identified. Our study is the first to find evidence that female primates gain social benefits from their early associations with adult males.  
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  Publisher Springer Berlin / Heidelberg Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0340-5443 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5243  
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Author (up) Silk, J.B.; Alberts, S.C.; Altmann, J. url  doi
openurl 
  Title Social Bonds of Female Baboons Enhance Infant Survival Type Journal Article
  Year 2003 Publication Science Abbreviated Journal Science  
  Volume 302 Issue 5648 Pages 1231-1234  
  Keywords  
  Abstract Among nonhuman primates, females often form strong bonds with kin and other group members. These relationships are thought to have adaptive value for females, but direct effects of sociality on fitness have never been demonstrated. We present 16 years of behavioral data from a well-studied population of wild baboons, which demonstrate that sociality of adult females is positively associated with infant survival, an important component of variation in female lifetime fitness. The effects of sociality on infant survival are independent of the effects of dominance rank, group membership, and environmental conditions. Our results are consistent with the evidence that social support has beneficial effects on human health and well-being across the life span. For humans and other primates, sociality has adaptive value.  
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  Notes 10.1126/science.1088580 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5151  
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Author (up) Weik, H.; Altmann, J. openurl 
  Title The effect of L(+)-lactate on rat and horse adipose tissue in vitro Type Journal Article
  Year 1972 Publication Zentralblatt fur Veterinarmedizin. Reihe A Abbreviated Journal Zentralbl Veterinarmed A  
  Volume 19 Issue 6 Pages 514-518  
  Keywords Adipose Tissue/analysis/*drug effects; Animals; Fatty Acids, Nonesterified; Glycerol/metabolism; Horses; Lactates/*pharmacology; Lipid Metabolism; Male; Rats  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0514-7158 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:4626300 Approved no  
  Call Number refbase @ user @ Serial 132  
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