• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Avian research >Nestling discrimination and feeding habits during brooding of Chestnut Thrushes
【24h】

Nestling discrimination and feeding habits during brooding of Chestnut Thrushes

机译：栗子鹅口疮育雏期间雏鸟歧视和喂养习惯

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

BackgroundNestling discrimination and feeding habits during brooding are important factors affecting host selection of parasitic birds. Some host birds can avoid being parasitized by discriminating their nestlings or feeding food not suitable for parasitic nestlings. Thrushes are common medium-sized birds with widespread distribution and an open nesting habit, but they are rarely parasitized. It remains controversial whether this is due to feeding habits and/or nestling discrimination.MethodsIn this study, we tested the nestling discrimination ability and feeding habits of Chestnut Thrushes ( Turdus rubrocanus ) which is distributed in China’s multi-cuckoo parasitism system. Their nestling discriminability and feeding habits during brooding were studied by cross-fostering experiments and video recording to examine evolutionary restrictions on nestling discrimination and whether feeding habits are consistent with the growth of cuckoo nestlings.ResultsOur results indicate that Chestnut Thrushes using earthworms as the main brooding food can feed and maintain cuckoo nestlings and show no nestling discrimination.ConclusionsThe present study confirms that feeding habits cannot be regarded as the main factor affecting Chestnut Thrushes being rarely parasitized by cuckoos but suggests that egg rejection is likely to limit the evolution of nestling discrimination in thrushes.
机译：背景下的歧视和饲养习惯是影响寄生鸟类宿主选择的重要因素。一些宿主鸟类可以通过鉴别它们的雏鸟或喂食不适合寄生雏鸟的食物来避免寄修。鹅口疮是普通的中型鸟类，具有广泛的分布和开放的筑巢习惯，但很少寄予寄生。无论这是由于喂养习惯和/或雏鸟的鉴别，它仍然存在争议。本研究中，我们测试了栗子鹅口疮（Turdus rubrocanus）的雏鸟歧视能力和饲养习惯，这些血库血库血库血库属于中国的多咕咕寄生系统。通过交叉培养实验和视频记录研究了他们雏鸟期间的雏鸟歧视性和喂养习惯，以研究雏鸟歧视的进化限制，以及喂养习惯是否与杜鹃雏鸟的生长一致。结果表明栗子使用蚯蚓作为主要育雏血腥食物可以喂养和维持咕咕族雏鸟并没有显示雏鸟歧视。本研究证实，喂养习惯不能被视为影响栗子鹅口疮的主要因素很少被杜鹃寄出，但表明蛋抑制可能会限制雏鸟歧视的演变鹅口疮。

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