Gopukumar N, Manikandan M, Arivarignan G
Department of Animal Behaviour and Physiology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, India.
Indian J Exp Biol. 2002 Oct;40(10):1187-90.
Development of roosting patterns under a limited resource was studied in the short-nosed fruit bat C. sphinx in captivity. Spatial fidelity during the resting period (day time) and the individual male bat's presence/absence in the roost (occupancy index) were estimated during the active period (night time). Results show the presence of three groups on the basis of spatial fidelity. The first group was associated with the tent consisting of a harem male and seven females. The second group stayed near to the harem. The third group consisting of two males showed little occupancy index and no spatial fidelity. Female turnover between the first and second groups, and harem male replacement were observed. These findings of male groupings and female loyalty on the basis of "resource", suggest that resource defence polygyny is the primary mating strategy in C. sphinx.
在圈养条件下，对短鼻果蝠（C. sphinx）在资源有限情况下栖息模式的发展进行了研究。在活跃期（夜间）估算了休息期（白天）的空间保真度以及单个雄性蝙蝠在栖息地的出现/缺席情况（占用指数）。结果显示，根据空间保真度可分为三组。第一组与由一只后宫雄性和七只雌性组成的群体相关。第二组靠近后宫群体。由两只雄性组成的第三组占用指数较低且没有空间保真度。观察到第一组和第二组之间的雌性更替以及后宫雄性的替换。这些基于“资源”的雄性分组和雌性忠诚度的研究结果表明，资源防御型一夫多妻制是短鼻果蝠的主要交配策略。
