Home range and habitat use by the serotine bat, Eptesicus serotinus, in England
Home range and habitat use by the serotine bat, Eptesicus serotinus, in England
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英国塞洛汀蝙蝠 (Eptesicus serotinus) 的活动范围和栖息地使用
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
R. Stebbings
中科院分区：
文献类型：
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作者：
M. Robinson;R. Stebbings
发现少于20只蝙蝠的长尾棕苗圃的栖息地范围至少为24至77平方公里，核心活动区为13至33平方公里。如果更多的个体被跟踪，范围的大小可能会进一步增加，因为研究的四个群体中有三个还没有到达它们的渐近线。4个鹭群的总活动范围面积为127.36平方公里。不包括非繁殖蝙蝠，估计密度为每120公顷1只蝙蝠。然而，实际密度可能会更高，如果有额外的非繁殖期的雌性和未成熟的，而不是在苗圃。殖民地的家园范围和核心区域重叠，来自不同殖民地的个体在同一地点觅食。个体住宅范围（n= 32）从0.16平方公里到47.58平方公里不等，但这些范围并非完全由一个个体使用。在蜂群核心区域和繁殖地周围，一个蜂群的所有个体都使用家庭范围。只有离核心区域更远的地方才会出现个人使用的范围。从栖息地到觅食地的距离最长可达7.4公里，但蝙蝠通常沿着树木、树篱和牧场往返。这就导致他们比直接飞行的距离更远。平均而言，个体每晚往返于觅食区域之间的距离为8公里，最大距离超过41公里。他们每晚访问0到10个喂食点（平均= 2.89）。
Serotine nursery roosts with less than 20 bats were found to have home ranges of at least 24 to 77 km2 and core areas of activity from 13 to 33 km2. The size of the range may have increased further if more individuals had been tracked, as three of the four colonies studied had not reached their asymptotes. The total home-range area covered by four serotine colonies was 127.36 km2. Excluding non-breeding bats, a density of one bat per 120 ha was estimated. However, actual density was likely to be higher if there were additional non-breeding females and immatures that were not in nursery roosts. Colonial home ranges and core areas overlapped, with individuals from different colonies feeding at the same sites. Individual home ranges (n= 32) varied from 0.16 to 47.58 km2, but these were not used exclusively by one individual. Around the colonial core area and breeding roosts, home ranges were used by all individuals from a single colony. It is only further from the core area that ranges appeared to be used by individuals. The distance from roost to feeding areas varied by up to 7.4 km, but the bat usually commuted along lines of trees and hedges and over pastures. This resulted in greater distances being travelled than if they had flown by a direct route. On average, individuals commuted distances of 8 km each night between feeding areas, with a maximum distance of over 41 km. They visited between 0 and 10 feeding sites each night (mean = 2.89).