Sexual Selection in Primates: Mating conflict in primates: infanticide, sexual harassment and female sexuality

摘要: INTRODUCTION In a variety of mammals and few birds, newly immigrated or dominant males are known to attack kill dependent infants (Hausfater & Hrdy, 1984; Parmigiani vom Saal, 1994; van Schaik Janson, 2000). Hrdy (1974) was the first suggest that this bizarre behaviour product sexual selection: by killing they did not sire, these advanced timing mother's next oestrus and, owing their new social position, would have reasonable probability siring female's infant. Infanticide therefore be one most dramatic expressions conflict (Smuts Smuts, 1993; Gowaty, 1997, volume). Although interpretation, indeed phenomenon itself, has been hotly debated for decades (e.g. Dolhinow, 1977; Boggess, Bartlett et al ., Sussman 1995), on balance, hypothesis provides far better fit with observations primates than any alternatives (cf. Schaik, 2000a). First, several detailed studies showed never attacked killed own offspring (Borries 1999; Soltis 2000), in accordance more anecdotal information compiled from all directly observed cases infanticide wild (van Second, large-scale estimated time gained infanticidal male amounts 25 per cent, 26 cent 32 mean interbirth interval (Crockett Sekulic, Sommer, Borries, 1997).