Reckardt Karsten, Kerth Gerald
Verhaltensbiologie, Zoologisches Institut, Universität Zürich, Zurich, Switzerland.
Parasitol Res. 2006 Feb;98(3):237-43. doi: 10.1007/s00436-005-0051-5. Epub 2005 Dec 10.
We studied the reproductive ecology of the bat fly Basilia nana on free-ranging colonial female and solitary male Bechstein's bats (Myotis bechsteinii) during one reproductive season. The reproduction of B. nana took place from April to September, and the production of puparia in bat roosts was high. The metamorphosis of the flies took a minimum of 30 days, and at least 86% of the puparia metamorphosed successfully. However, only about 30% of flies from puparia deposited in female roosts and 57% of flies from puparia deposited in male roosts emerged in the presence of Bechstein's bats and were thus able to survive. The significantly higher emergence success of bat flies in male roosts was caused by the higher roost fidelity of the solitary males compared with the social females. Our results indicate that bats can control the reproductive success of bat flies by switching and selecting roosts.
我们在一个繁殖季节里，对自由放养的群居雌性和独居雄性贝希斯坦蝙蝠（Myotis bechsteinii）身上的蝙蝠蝇纳氏巴西蝇（Basilia nana）的繁殖生态学进行了研究。纳氏巴西蝇的繁殖期为4月至9月，在蝙蝠栖息地中蛹的产量很高。蝇的变态发育至少需要30天，至少86%的蛹成功变态。然而，在贝希斯坦蝙蝠存在的情况下，只有约30%来自雌性栖息地中蛹的蝇以及57%来自雄性栖息地中蛹的蝇羽化，从而得以存活。与群居雌性相比，独居雄性更高的栖息地忠诚度导致雄性栖息地中蝙蝠蝇的羽化成功率显著更高。我们的研究结果表明，蝙蝠可以通过切换和选择栖息地来控制蝙蝠蝇的繁殖成功率。
