作者: AndreasPaul Kuesterl , Joachim Arnemann
DOI: 10.1007/BF00170600
关键词: Offspring 、 Reproductive success 、 Macaca sylvanus 、 Ecology 、 Sex ratio 、 Biology 、 Reproduction 、 Population 、 Sexual selection 、 Animal ecology 、 Demography
摘要: Paternity determination by oligonucleotide fingerprinting confirms that maternal rank affects the reproductive success of male Barbary macaques (Macaca sylvanus). High-born males began to reproduce significantly earlier and sired more infants surviving at least 1 year age during first 4 years their career than low-born males. This relation was independent natal/non-natal status males, not affected external conditions such as level intrasexual competition or number fertilizable females. Since high-ranking females in this population produced offspring low-ranking females, data on sex ratio adjustment comparative breeding sons daughters are consistent with predictions Trivers-Willard hypothesis.