Reproduction in wild female olive baboons

The purpose of this paper is to evaluate several factors that influence female reproduction in a large troop of wild olive baboons (Papio cynocephalus anubis) based on 4 consecutive years of demographic data. Interbirth intervals were significantly shorter for females whose infants died before their next conception than for females whose infants survived. High‐ranking mothers of surviving infants had significantly shorter birth intervals than comparable low‐ranking mothers, independent of maternal age. This occurred mainly because the interval from resumption of cycling to conception was significantly shorter for high‐vs. low‐ranking females. Dominance rank did not influence sex ratio at birth, infant survival in the first 2 years, or adult female mortality. Age was also significantly related to interbirth intervals, with older females having shorter intervals. Primiparous females had consistently longer reproductive intervals than did multiparous females, but this difference reached statistical significance only for females whose infants died before the next conception. Primiparous females also experienced significantly higher infant mortality. Data on body size and estrous cycle length indicated no differences between high‐ and low‐ranking females. Nutritional and stress‐related mechanisms that may underlie the reproductive advantages of high rank are discussed.

[1]  M. Gomendio.  Suckling behaviour and fertility in rhesus macaques (Macaca multatta) , 1989 .

[2]  Julie A. Johnson.  Dominance rank in juvenile olive baboons, Papio anubis: the influence of gender, size, maternal rank and orphaning , 1987, Animal Behaviour.

[3]  A. Harcourt,et al.  Dominance and fertility among female primates , 1987 .

[4]  Phyllis C. Lee.  Nutrition, fertility and maternal investment in primates , 1987 .

[5]  D. Abbott.  Behaviourally mediated suppression of reproduction in female primates , 1987 .

[6]  B. Smuts.  Sex and friendship in baboons , 1987 .

[7]  C. V. van Schaik,et al.  Evolutionary Effect of the Absence of Felids on the Social Organization of the Macaques on the Island of Simeulue (Macaca fascicularis fusca, Miller 1903) , 1985 .

[8]  M. Wilson,et al.  Consequences of first pregnancy in rhesus monkeys. , 1983, American journal of physical anthropology.

[9]  A. Loudon,et al.  Nutrition and lactational control of fertility in red deer , 1983, Nature.

[10]  L. Fedigan,et al.  Behavioural dominance and reproductive success in female Japanese monkeys (Macaca fuscata) , 1982, Animal Behaviour.

[11]  J. Altmann,et al.  Long-Term Consistency of Dominance Relations Among Female Baboons (Papio cynocephalus) , 1982, Science.

[12]  M. Seibel,et al.  Biological rhythm of the luteinizing hormone surge in women. , 1982, Fertility and sterility.

[13]  M. Seibel,et al.  Emotional aspects of infertility. , 1982, Fertility and sterility.

[14]  J. Silk,et al.  Differential reproductive success and facultative adjustment of sex ratios among captive female bonnet macaques (Macaca radiata) , 1981, Animal Behaviour.

[15]  R. Wrangham.  Drinking competition in vervet monkeys , 1981, Animal Behaviour.

[16]  D. Post.  Activity patterns of yellow baboons (Papio cynocephalus) in the amboseli National Park, Kenya , 1981, Animal Behaviour.

[17]  M. Simpson,et al.  Infant-related influences on birth intervals in rhesus monkeys , 1981, Nature.

[18]  Robert M. Seyfarth,et al.  The distribution of grooming and related behaviours among adult female vervet monkeys , 1980, Animal Behaviour.

[19]  J. Walters.  Interventions and the development of dominance relationships in female baboons. , 1980, Folia primatologica; international journal of primatology.

[20]  J. Altmann,et al.  Primate infant's effects on mother's future reproduction. , 1978, Science.

[21]  I. Bernstein,et al.  Timing of Births and Reproductive Success in Rhesus Monkey Social Groups 1 , 1978, Journal of medical primatology.

[22]  S. Hrdy,et al.  Hierarchical Relations Among Female Hanuman Langurs (Primates: Colobinae, Presbytis entellus) , 1976, Science.

[23]  K. Armitage,et al.  Socioecology of Marmots: Female Reproductive Strategies , 1976 .

[24]  T. Rowell.  Baboon menstrual cycles affected by social environment. , 1970, Journal of reproduction and fertility.

[25]  R. Sadleir.  The Ecology of Reproduction in Wild and Domestic Mammals , 1969, Springer Netherlands.

[26]  E. Kaplan,et al.  Nonparametric Estimation from Incomplete Observations , 1958 .

[27]  S. Wasser,et al.  Proximate and ultimate causes of reproductive suppression among female yellow baboons at Mikumi National Park, Tanzania , 1988, American journal of primatology.

[28]  J. Silk.  Social mechanisms of population regulation in a captive group of bonnet macaques (Macaca radiata) , 1988, American journal of primatology.

[29]  Robert M. Seyfarth,et al.  The reproductive success of vervet monkeys , 1988 .

[30]  A. Harcourt,et al.  Determinants of Fertility in Wild Gorillas and Other Primates , 1988 .

[31]  J. Altmann.  Determinants of reproductive success in savannah baboons, Papio cynocephalus , 1988 .

[32]  Fred B. Beicovrtch,et al.  Female weight and reproductive condition in a population of olive baboons (Papio anubis) , 1987, American journal of primatology.

[33]  P. Lunn.  Maternal nutrition and lactational infertility: the baby in the driving seat , 1987 .

[34]  Robin I. M. Dunbar.  Primate social systems , 1987 .

[35]  S. Hrdy,et al.  Secondary sex ratios by maternal rank, parity, and age in captive rhesus macaques (Macaca mulatta) , 1986, American journal of primatology.

[36]  A. Mcneilly,et al.  Endocrine control of lactational infertility. I. , 1985 .

[37]  E. Keverne,et al.  Social influences on sex differences in the behavior and endocrine state of talapoin monkeys. , 1984, Progress in brain research.

[38]  L. Fairbanks,et al.  Determinants of fecundity and reproductive success in captive vervet monkeys , 1984, American journal of primatology.

[39]  J. A. Johnson.  Social relationships of juvenile olive baboons , 1984 .

[40]  A. Paul,et al.  Timing of Birth, Female Reproductive Success and Infant Sex Ratio in Semifree-Ranging Barbary Macaques (Macaca sylvanus) , 1984 .

[41]  P. Whitten,et al.  Diet and dominance among female vervet monkeys (Cercopithecus aethiops) , 1983, American journal of primatology.

[42]  C. Schaik.  Why Are Diurnal Primates Living in Groups , 1983 .

[43]  W. Dixon,et al.  BMDP statistical software , 1983 .

[44]  S. Wasser.  13 – Reproductive Competition and Cooperation among Female Yellow Baboons* , 1983 .

[45]  H. Ohsawa,et al.  Population dynamics of Japanese monkeys with special reference to the effect of artificial feeding. , 1982, Folia primatologica; international journal of primatology.

[46]  S. Strum,et al.  Variations in fecundity with age and environment in olive baboons (Papio anubis) , 1982, American journal of primatology.

[47]  G. Hausfater,et al.  Feeding behavior of yellow baboons (Papio cynocephalus): relationship to age, gender and dominance rank. , 1980, Folia primatologica; international journal of primatology.

[48]  Jeanne Altmann,et al.  Baboon mothers and infants , 1980 .

[49]  L. C. Drickamer.  A ten-year summary of reproductive data for free-ranging Macaca mulatta. , 1974, Folia primatologica; international journal of primatology.

[50]  David R. Cox,et al.  Regression models and life tables (with discussion , 1972 .