Sarah J. McGrath, Nicholas Malone, Alison M. Behie
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引用次数: 0
Abstract
Wild animals are increasingly subjected to noisier environments as the scale and scope of human activities, such as development and resource extraction, encroach into their habitats. Anthropogenic noise alters the behaviour and vocalisations of wild animals including primates, yet our understanding of how noise affects small apes is limited. The large population of endangered northern yellow‐cheeked crested gibbons (Nomascus annamensis) inhabiting Veun Sai‐Siem Pang National Park (VSSP), in northeastern Cambodia, is frequently exposed to noise produced from illegal selective logging activities within the park. To determine the impacts of chainsaw noise on the gibbons' activity budgets and calling probability, we collected behavioural data on the only habituated gibbon group in VSSP during two consecutive dry seasons between 2017 and 2019. Our analyses of scan and focal‐animal samples revealed that when chainsaws were active, the group rested more and scanned less. The gibbons called more on mornings when there was no chainsaw activity; however, the trend was non‐significant. These findings suggest that despite long‐term exposure, chainsaw noise variably impacts important aspects of gibbon behaviour.
期刊介绍:
WILDLIFE BIOLOGY is a high-quality scientific forum directing concise and up-to-date information to scientists, administrators, wildlife managers and conservationists. The journal encourages and welcomes original papers, short communications and reviews written in English from throughout the world. The journal accepts theoretical, empirical, and practical articles of high standard from all areas of wildlife science with the primary task of creating the scientific basis for the enhancement of wildlife management practices. Our concept of ''wildlife'' mainly includes mammal and bird species, but studies on other species or phenomena relevant to wildlife management are also of great interest. We adopt a broad concept of wildlife management, including all structures and actions with the purpose of conservation, sustainable use, and/or control of wildlife and its habitats, in order to safeguard sustainable relationships between wildlife and other human interests.