...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Journal of Zoology >Investigation of cues used by predators to detect Snapping Turtle (Chelydra serpentina) nests
【24h】

Investigation of cues used by predators to detect Snapping Turtle (Chelydra serpentina) nests

机译：调查捕食者用来探测鳄龟（Chelydra serpentina）巢的线索

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

Nest prédation is the leading cause of reproductive mortality in oviparous tetrapods and can limit population growth in some species. Rates of nest prédation could be influenced through modification of the cues used to find nests, but this requiresa clear understanding of how nests are located. Here, we used a buffet-style choice experiment to test the relative role of three cue types (visual, tactile, and chemosensory) on the detection and depredation of Snapping Turtle (Chelydra serpentina (L.,1758)) nests by a suite of predators dominated by raccoons (Procyon lotor (L., 1758)). We created sets of artificial nests along an authentic nesting site, presenting single or multiple cues. We interspersed artificial nests with authentic nests and monitored prédation rates on both. Predators used all three cues to locate potential nests for investigation. However, nests with tactile cues were significantly more likely to be depredated than nests with only visual and chemosensory cues. Multiple cues had additive effects on prédation probability. Addition of chemosensory cues to tactile treatments increased the probability of prédation. The importance of tactile cues in this system supports the use of nest cages to protect nests in early stages of development, but cannot explain the recently described late-stage peak in prédation.
机译：巢式掠食是卵形四足动物生殖死亡的主要原因，并且可能限制某些物种的种群增长。可以通过更改用于查找嵌套的提示来影响嵌套的嵌套率，但这需要对嵌套的位置有清晰的了解。在这里，我们使用自助餐风格的选择实验来测试三种提示类型（视觉，触觉和化学感应）在检测和淘汰Sn龟（Chelydra serpentina（L.，1758））巢中的相对作用，该巢穴是一组掠食者以浣熊为主（Procyon lotor（L.，1758））。我们沿着一个真实的筑巢地点创建了一组人工巢，展示了单个或多个线索。我们在人造巢中穿插地道的巢，并监控两者的繁殖率。捕食者利用这三个线索找到潜在的巢穴进行调查。但是，具有触觉提示的巢比仅具有视觉和化学感应提示的巢更可能被弃用。多个提示对p杀概率具有加性影响。在触觉治疗中增加化学感觉提示会增加被掠食的可能性。触觉提示在此系统中的重要性支持在开发的早期阶段使用鸟笼保护鸟巢，但无法解释最近描述的后期繁殖高峰。

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