• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ethology >Maternal Care and Infanticide by Males in Helvibis longicauda (Araneae: Theridiidae)
【24h】

Maternal Care and Infanticide by Males in Helvibis longicauda (Araneae: Theridiidae)

机译：Helvibis longicauda（Araneae：Theridiidae）中男性的孕产妇保健和杀婴

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

Maternal care in spiders varies from just the construction of a protective silken structure for the eggs and the selection of a safe site to place them, to a long period of association between the mother and spiderlings. Such extended care may involve the active protection from predators and parasitoids, food regurgitation, the production of trophic eggs and even matriphagy. In this study, we describe extended maternal care in Helvibis longicauda (Theridiidae) and evaluate the effectiveness of maternal protection against predators of eggs and spiderlings. We conducted experiments comparing the frequency of egg sac destruction and mortality of spiderlings in the presence and absence of mothers. We also observed the behaviour of the mother and spiderlings during prey capture events and interactions with possible predators. Helvibis longicauda females guard their egg sacs until the emergence of the young and guard the spiderlings for several instar stages, ?ghting possible predators, including conspeci?cs. We found that aggressive behaviour by females increased the survival of both eggs and spiderlings in our experiments. Intruder males were the main source of mortality in the absence of females. The bene?ts of maternal care for the young also include the acquisition of prey items that are captured, immobilized and pre-digested by the mother. Effective maternal protection and the extended period of supplying food to juveniles probably contribute to the late dispersal of offspring in H. longicauda.
机译：蜘蛛的产妇护理不仅包括为鸡蛋构造保护性的丝质结构，还选择了放置卵子的安全场所，还包括母亲与幼鸟之间长期的交往。此类扩展护理可能涉及积极保护，以免受捕食者和寄生物，食物反流，滋养卵的产生，甚至母体吞噬。在这项研究中，我们描述了在长尾Helicobis longicauda（Theridiidae）中扩大的孕产妇保健，并评估了孕产妇保护免受卵和蜘蛛幼虫侵害的有效性。我们进行了实验，比较了有无母亲的情况下卵囊破坏的频率和蜘蛛的死亡率。我们还观察到了猎物捕获事件以及与可能的掠食者互动期间母亲和幼鸟的行为。 Helvibis longicauda雌性保护卵囊直到幼年出现，并在几个成年阶段保护蜘蛛幼虫，以寻找可能的捕食者，包括特定的天敌。我们发现，在我们的实验中，雌性的攻击行为增加了卵和蜘蛛的存活率。在没有女性的情况下，男性入侵者是主要的死亡来源。青年人的产妇保健的好处还包括获得母亲捕获，固定和预先消化的猎物。有效的孕产妇保护和向少年提供食物的时间延长可能是导致长绒猴的后代较晚扩散的原因。

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