HOME-RANGE SIZE, MOVEMENTS, AND NEST-SITE USE IN THE SIBERIAN FLYING SQUIRREL, PTEROMYS VOLANS
HOME-RANGE SIZE, MOVEMENTS, AND NEST-SITE USE IN THE SIBERIAN FLYING SQUIRREL, PTEROMYS VOLANS
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西伯利亚飞鼠 Pteromys Volans 的活动范围大小、活动和巢穴利用
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
V. Selonen
中科院分区：
文献类型：
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作者：
I. Hanski;P. Stevens;Petri Ihalempiä;V. Selonen
摘要西伯利亚飞鼠(Pteromys Volans)是一种生活在北方针叶林中的夜间食草性树栖啮齿动物。1996-1998年在芬兰南部用无线电遥测技术研究了翼鸟的活动范围、活动和筑巢行为。对37只动物进行了追踪。用100%最小凸多边形法测得的平均家庭范围大小，雄性为59.9公顷，雌性为8.3公顷。两性的活动都集中在核心区，分别占雄性和雌性活动区域的9%和11%。根据体重，雄性和雌性的栖息地比预测的要大几倍。同样，翼鸟的栖息地比其他滑行的食草动物要大得多。雄鸟尤其表现出很大的活动能力；夜间从巢中迁徙的平均距离为292米，记录的最长距离为2公里。翼鸟活动范围大、机动性大的一个合理的解释是它的滑行能力；两性都可以到达家园的远处觅食，雄性也可以到达愿意接受食物的雌性的远处。翼鸟有几个巢，既有洞，也有巢(树枝上的巢)，它们经常改变。
Abstract The Siberian flying squirrel (Pteromys volans) is a herbivorous, nocturnal, and arboreal rodent living in boreal coniferous forests. Home-range sizes, movements, and nest-use behavior of Pteromys were studied by radiotelemetry in southern Finland in 1996–1998. Thirty-seven animals were tracked. Average home-range size measured by 100% minimum convex polygons was 59.9 ha for males and 8.3 ha for females. Both sexes concentrated their activities in core areas that represented 9% and 11% of the home-range areas in males and females, respectively. Home ranges of males and females were several times larger than predicted according to body mass. Similarly, home ranges of Pteromys were much larger than in other gliding herbivores. Males especially showed great mobility; the average distance moved from the nest at night was 292 m, and the longest distances recorded were >2 km. A plausible explanation for the large home ranges and great mobility of Pteromys is its gliding ability; both sexes can reach distant parts of the home range for foraging, and males also can reach distant parts for receptive females. Pteromys had several nests, both cavities and dreys (nests in branches of trees), which they changed frequently.