Commuting, shifting or remaining? Different spatial utilisation patterns of wild boar Sus scrofa L. in forest and field crops during summer
Commuting, shifting or remaining? Different spatial utilisation patterns of wild boar Sus scrofa L. in forest and field crops during summer
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DOI：
10.1016/j.mambio.2008.05.007
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发表时间：
2009-01-01
影响因子：
1.6
通讯作者：
Roth, Mechthild
中科院分区：
文献类型：
--
作者：
Keuling, Oliver;Stier, Norman;Roth, Mechthild
在德国东北部的一项无线电遥测研究中，我们分析了 21 个野猪群中 22 只雌性野猪 (Sus scrofa) 在夏季（2003-2006 年）的空间利用情况。我们将夏季的活动范围（5 月 16 日至 8 月 15 日）与“田间活动范围”（即第一次出现到最后一次出现在谷物田之间的时间段）进行了比较。野猪在谷物和油菜花开始开花时出现在田野里，通常在收获时消失。定义了三种类型的空间利用模式：“田间母猪”，将其家园完全转移到田野中； “通勤者”，在森林和田野之间漫游；以及留在森林中的“森林母猪”。一岁猪主要是通勤者，而家庭群体不会四处游荡，而是转移到田野或留在森林中。田间母猪的平均田间活动范围比夏季总范围小，而通勤母猪和森林母猪没有表现出差异。所有三个群体在活动范围大小方面没有显着差异，但从春季到夏季活动范围的平均变化有所不同。不同空间模式的母猪的饲养范围大小相似，因为所有资源在整个研究区域都是永久可用的。然而，错位到有利可图的营养栖息地（例如夏季的农田）可能会扩大通勤者和田间母猪的年度活动范围。 (C) 2008 德国Gesellschaft fur Saugetierkunde。由爱思唯尔有限公司出版。版权所有。
In a radiotelemetry study in North-East Germany, we analysed spatial utilisation of 22 female wild boar (Sus scrofa) out of 21 wild boar groups during summer (2003-2006). We compared summer season home ranges (16 May-15 August) with "field home ranges", i.e. periods between first and last appearance within cereal fields. Wild boar appeared inside fields with beginning of grain and rapeseed flowering and vanished usually with harvest. Three types of spatial utilisation patterns were defined: "field sows", who shifted their home range entirely into fields; "commuters", who roamed between forest and fields; and "forest sows", who remained in the forest. Yearlings were predominantly commuters, whilst family groups did not roam but either shifted to fields or stayed in forest.Field sows had smaller mean field home ranges than total summer home ranges, whereas commuters and forest sows showed no differences. All three groups did not differ significantly in home range size measures but, however, showed different mean shifts from spring to summer home range. The home range sizes of sows of the different spatial patterns were similar, as all resources were permanently available all-over the study area. However, dislocations into outstanding profitable nutritional habitats (e.g. agricultural fields in summer) may enlarge annual home ranges of commuters and field sows. (C) 2008 Deutsche Gesellschaft fur Saugetierkunde. Published by Elsevier GmbH. All rights reserved.