作者: Joyce A. Parga
DOI: 10.1007/S10764-005-9006-Z
关键词: Mate choice 、 Reproductive success 、 Lemur 、 Biology 、 Animal ecology 、 Agonistic behaviour 、 Demography 、 Fecundity 、 Lemur catta 、 Ecology 、 Sexual selection
摘要: Though females are generally more selective in mate choice, males may also derive reproductive benefits from exercising selectivity if one or factors limit male success and differ potential. I used mating effort as a proxy for choice ring-tailed lemurs (Lemur catta). calculated the rate of male-male agonism during each female's estrous period 30 min before after first last mountings with intromission. collected data on 1 free-ranging Lemur catta troop 2 consecutive breeding seasons St. Catherines Island, USA. In both yrs, differed significantly among once adjusted agonistic rates to reflect intensity, corrected number observed mates per female (2000: χ2 = 27.43, df 3, p < 0.0001; 2001: 21.10, 0.001). Results strongly suggest choice. Contrary expectation, did not expend greatest highest dominance status nor success. Males preferred that either: (1) belonged age class which fecundity infant survival is at this site (4–9 yrs), 2) were older (≥10 yrs) high Female potential appears be an important variable determining catta.