Nest raiding by bonnet macaques (Macaca radiata) and the response of nest guarding birds in a suburban habitat.

IF 1.3 4区 生物学 Q2 ZOOLOGY Primates Pub Date : 2024-10-26 DOI:10.1007/s10329-024-01167-z
Vinothini Govindharaj, Mildred Berlena Blessy Herald Victor, Paul A Garber, Thiruchenthil Nathan Parthasarathy
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Abstract

In many primate species, nest raiding is a form of opportunistic foraging behavior designed to acquire protein-rich eggs and nestlings. In urban environments, this is a significant cause of nest failure in birds. Here, we describe nest raiding and egg predation in bonnet macaques (Macaca radiata) inhabiting a suburban area of Salem, Tamil Nadu, India. During nest raiding, large-billed crows (Corvus macrorhynchos) and house crows (Corvus splendens), actively defended their nest from the macaques. When several macaque foragers jointly raided the nest, they were successful in obtaining and consuming the eggs. In contrast, when a solitary macaque attempted to raid the nest, it was unsuccessful. Bird size appeared to play an important role in nest defense. Small birds, such as the scaly breasted munia (Lonchura punctulata) and the purple sunbird (Cinnyris asiaticus) were not able to protect their nests from lone bonnet macaques. These observations indicate that in urban landscapes, bonnet macaques are egg predators of many bird species. When macaques coordinate their actions and forage in small subgroups, they were more successful in preying on the eggs of larger-bodied bird species.

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郊区猕猴的盗巢行为和护巢鸟类的反应
在许多灵长类动物中,袭巢是一种机会主义觅食行为,目的是获取富含蛋白质的蛋和雏鸟。在城市环境中,这是鸟类筑巢失败的一个重要原因。在这里,我们描述了栖息在印度泰米尔纳德邦塞勒姆郊区的喙猕猴(Macaca radiata)的袭巢和捕食鸟蛋行为。在袭巢过程中,大嘴乌鸦(Corvus macrorhynchos)和家鸦(Corvus splendens)积极保护自己的巢不被猕猴捕食。当几只猕猴觅食者联合袭击巢穴时,它们都能成功地获得并吃掉鸟蛋。相反,当一只猕猴单独试图袭击巢穴时,却没有成功。鸟类的大小似乎在巢穴防御中起着重要作用。小型鸟类,如鳞胸胭脂鱼(Lonchura punctulata)和紫阳雀(Cinnyris asiaticus),无法保护它们的巢免受独居猕猴的攻击。这些观察结果表明,在城市景观中,匙形猕猴是许多鸟类的鸟蛋捕食者。当猕猴协调行动并以小群体形式觅食时,它们能更成功地捕食体型较大的鸟类的卵。
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来源期刊
Primates
Primates 生物-动物学
CiteScore
3.10
自引率
17.60%
发文量
71
审稿时长
>12 weeks
期刊介绍: Primates is an international journal of primatology whose aim is to provide a forum for the elucidation of all aspects of primates. The oldest primatological journal, Primates publishes original papers that advance the scientific study of primates, and its scope embraces work in diverse fields covering biological bases of behavior, socio-ecology, learning and cognition, social processes, systematics, evolution, and medicine. Contributions relevant to conservation of natural populations and welfare of captive primates are welcome. Studies focusing on nonprimate species may be considered if their relevance to primatology is clear. Original Articles as well as Review Articles, News and Perspectives, and Book Reviews are included. All manuscripts received are initially screened for suitability by members of the Editorial Board, taking into account style and ethical issues, leading to a swift decision about whether to send the manuscript for external review.
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