期刊
FRONTIERS IN ECOLOGY AND EVOLUTION
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fevo.2021.705748
关键词
alarm calls; brood parasite; hawk mimicry; nest parasitism; nest predator
类别
资金
- Hainan Provincial Natural Science Foundation of China [320CXTD437, 2019RC189]
- National Natural Science Foundation of China [31672303]
- Open Foundation of Hebei Key Laboratory of Wetland Ecology and Conservation [hklk201903]
- Natural Science Foundation of Hebei Province of China [C2020101002]
The study demonstrates that nest parasites can harm hosts, leading to the evolution of anti-parasitic behaviors in hosts. In the case of oriental reed warblers, hosts showed stronger responses during the nestling stage compared to the egg stage, indicating potential differences in their perception of different threats.
Cuckoo nest parasites lay eggs in host nests and thereby transfer all reproduction costs to the hosts. This greatly reduces host fitness. Parasitism has selected for the evolution of anti-parasitic strategies in hosts, including nest defense. The dynamic risk assessment hypothesis holds that nest parasitism only threatens the nests during the egg stage, so hosts should reduce the level of defense against nest parasites after the egg stage. We studied the behavioral and acoustic responses of oriental reed warblers (Acrocephalus orientalis), during both the egg and nestling stages, toward the common cuckoo (Cuculus canorus), sparrowhawks (Accipiter nisus) and oriental turtle doves (Streptopelia orientalis). A. orientalis can visually distinguish cuckoos from sparrowhawks and doves, indicating that hawk mimicry did not work for the cuckoos. The behavioral response of hosts in the nestling stage was stronger than in the egg stage, which supports the offspring value hypothesis and suggests that cuckoos may also act as nest predators. However, there was no difference in the alarm calls A. orientalis produce in response to different invaders, indicating that different types of alarm calls may not contain specific information.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据