作者: Rune Gerell , Karin Lundberg
DOI: 10.1007/BF00317567
关键词: Reproduction 、 Polygyny 、 Pipistrellus pipistrellus 、 Sexual dimorphism 、 Population 、 Survival rate 、 Mating system 、 Sexual difference 、 Ecology 、 Demography 、 Biology
摘要: A pipistrelle bat (Pipistrellus pipistrellus) population in southernmost Sweden was studied for eight consecutive breeding seasons by means of boxes. Survival rates were calculated using Cormack's stochastic technique. The mean survival rate adult females exceeded that territorial males. Annual variations most evident males, low being observed years following wet autumns. Energy constraints imposed on males the mating system, a resource defence polygyny, assumed to account differences obtained between sexes.