• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oryx >The bush dog Speothos venaticus: area requirement and habitat use in cultivated lands
【24h】

The bush dog Speothos venaticus: area requirement and habitat use in cultivated lands

机译：丛林犬Speothos venaticus：耕地的面积要求和栖息地使用

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We radio-tracked a pack of bush dogs Speothos venaticus (7-10 individuals) near Agua Boa in Mato Grosso, Brazil, for 18 months to investigate their use of habitat in cultivated land. The pack's home range was 709 km(2) (fixed-kernel 95%), which exceeds estimates of home range for the largest Neotropical carnivore, the jaguar Panthera onca. Of the 245 locations where the dogs were recorded 95% were within native vegetation (savannah and forest), even though these habitats comprised only 34% of the pack's home range. This indicates a preference for native vegetation, and this was reinforced by composition analysis of habitat use, which showed that the pack used savannah and forest more than expected and cultivated areas less than expected. Analysis of activity showed that the bush dogs were moving quickly in more than half of the locations in cultivated areas, foraging in most savannah locations and resting in most forest locations. Our results indicate that bush dogs can live in areas with a high proportion of cultivated land (66%), possibly because of the structural connectivity of the landscape (80% of the native habitat is within a single patch). However, their home range appears to be inflated compared to that of other carnivores, which may have a negative effect on the species in the long term.
机译：我们用无线电跟踪了巴西马托格罗索州阿瓜博阿附近的一群野狗Speothos venaticus（7至10个人），历时18个月，调查了它们在耕地中的栖息地使用情况。该背包的飞行范围为709 km（2）（固定内核95％），超过了最大的新热带食肉动物美洲虎Panthera onca的飞行范围估计。在记录有狗的245个地点中，有95％位于本地植被（稀树草原和森林）内，尽管这些栖息地仅占该背包家园范围的34％。这表明人们偏爱本地植被，栖息地利用的成分分析进一步证明了这一点，该地区的大草原和森林使用量超过了预期，耕地面积却少于预期。活动分析表明，丛林犬在耕地中一半以上的地方快速移动，在大多数大草原地区觅食，在大多数森林地区休息。我们的结果表明，丛林犬可以生活在耕地比例高（66％）的地区，这可能是由于景观的结构连通性（80％的原生栖息地都在单个斑块内）。但是，与其他食肉动物相比，它们的居所范围似乎膨胀了，从长远来看可能会对物种产生负面影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号