...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Wildlife Society Bulletin >Use of artificial nests to investigate predation on freshwater turtle nests
【24h】

Use of artificial nests to investigate predation on freshwater turtle nests

机译：使用人工巢调查淡水龟巢上的捕食行为

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

Habitat fragmentation has raised concerns that populations of generalist predators have increased and are affecting a diverse group of prey. Previous research has included tile use of artificial nests to investigate the role of predation on birds that nest on or near the ground. Because predation also is a major factor limiting populations of fresh water turtles, we examined the potential of using artificial nests in identifying factors that limit recruitment. We buried eggs of northern bobwhites (Colinus virginianus) to simulate turtle nests and placed remotely triggered cameras at a sample of nests to identify predators. Twenty-two percent of all nests were either depreciated Or disturbed within 7 days of placement. The proportion of nests depredated decreased with increasing distance from the edge of ponds. Predation was greater on nests within 50 m of pond edges than nests farther from pond edges. Clumped nests were depreciated at a greater rate than scattered nests. Remotely triggered cameras at nests indicated that raccoons (Procyon lotor) were the most frequent nest predators. Some potential biases associated with file use of artificial nests in avian studies (e.g., lack of parental care) might not apply to the application of artificial nests in studies of turtle demography. We conclude that artificial nests might be useful to investigate factors that limit populations of freshwater turtle.
机译：生境的碎片化引起了人们的关注，即通才捕食者的数量增加了，并且正在影响各种各样的猎物。先前的研究包括使用人造巢来调查捕食对筑巢在地面上或附近的鸟类的作用。由于捕食也是限制淡水龟种群的主要因素，因此我们研究了使用人工巢穴识别限制招募因素的潜力。我们将北部美洲白鲑（Colinus virginianus）的卵埋入水中以模拟海龟的巢，然后将远程触发的相机放在巢的样本上以识别掠食者。所有巢穴中有22％在放置后的7天内折旧或受到干扰。随着距池塘边缘距离的增加，不宜使用的巢的比例降低。池塘边缘50 m以内的巢穴比离池塘边缘较远的巢穴的捕食量更大。块状巢的折旧率比分散的巢大。巢穴中的遥控摄像头表明，浣熊（Procyon lotor）是最常见的巢穴掠食者。在鸟类研究中与人工巢的档案使用相关的一些潜在偏见（例如，缺乏父母的照顾）可能不适用于乌龟人口统计学研究中的人工巢。我们得出的结论是，人工巢可能有助于研究限制淡水龟种群的因素。

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