Predation behaviour of the bridle snake (Lycodon cf. davisonii) on asian tropical evergreen forest bird nests

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Khamcha D., Gale G.A.

ปีที่เผยแพร่ (ค.ศ.): 2020

วารสาร: Raffles bulletin of Zoology (0217-2445)

Volume number: 68

หน้าแรก: 803

หน้าสุดท้าย: 809

จำนวนหน้า: 7

นอก: 0217-2445

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100618846&doi=10.26107%2fRBZ-2020-0091&partnerID=40&md5=6fbaafe5448b23005a35b8951acd1384

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

Nest predators are responsible for the majority of reproductive failures in birds in multiple habitats globally. Snakes are likely one of the main nest predators, but few studies have focused on snake nest predation patterns in the tropics where the diversity of snakes and nesting birds is highest. Here we examined nest predation patterns of the bridle snake (Lycodon cf. davisonii), a poorly known species, but potentially a major nest predator of understorey nesting birds in Asian tropical evergreen forests. In an ongoing, long-term study of nest survival in a dry evergreen forest in northern Thailand, we monitored 478 natural nests of 23 bird species during breeding seasons of 2013–2019 with video cameras placed near active nests to assess nest predator species and their predation activities. We documented 308 predation events from 15 species of nest predators. Bridle snake was the third most important nest predator accounting for 13% of all predation events; it was exclusively nocturnal and preyed solely on eggs. Bridle snakes, unlike the other four top nest predators in our system, which were likely generalists, appeared to prefer open-cavity nests relative to other nest types, and was responsible for > 45% of nest failures of open-cavity nesting birds. This preference of the bridle snake is likely to influence nest survival rates of open-cavity nesting birds. Thus, further study of the factors influencing its predation behaviours and activity patterns, particularly its response to human disturbance, could be useful for the management of tropical forest birds. © National University of Singapore.

คำสำคัญ

Open-cavity nests