Ranging Behavior of Wild Silvery Lutungs (Trachypithecus cristatus) in the Coastal Forest of West Sumatra, Indonesia

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-13 DOI:10.1007/s10764-024-00425-7

Muhammad Azhari Akbar, Dyah Perwitasari-Farajallah, Rizaldi, Ani Mardiastuti, Muhammad Ikhsan, Thoriq Alfath Febriamansyah, Kanthi Arum Widayati, Yamato Tsuji

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Abstract

Ranging behavior, including home range use and daily travel distance, provides valuable information on the behavioral responses of primates to their habitats. We evaluated the ranging behavior of wild silvery lutungs (Trachypithecus cristatus) inhabiting a coastal forest in West Sumatra, Indonesia, for 614 h over 15 months in 2018–2021, focusing on the relationships between ranging behavior and activity budgets, dietary composition, and food availability. The annual home range was 8.1 ha (minimum convex polygon) and 11.7 ha (95% kernel), and the mean (± standard deviation [SD]) daily travel distance was 926 ± 385 m. Daily travel distance showed a positive correlation with percent resting and negative correlations with percent feeding and moving. Furthermore, daily travel distance was correlated positively with percent young leaf feeding and negatively with percent mature leaf feeding, ripe fruit feeding, and dietary diversity. In contrast, home range size did not vary significantly across the study period, and we found few significant correlations between home range size and dietary composition or activity budget. The longer daily travel distances in food scarce season are likely due to the lutungs needing to travel further to find trees bearing young leaves. We conclude that the silvery lutungs’ ranging behavior is linked to their high-risk, high-return strategy.

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印度尼西亚西苏门答腊沿海森林中野生银纹鹿（Trachypithecus cristatus）的巡游行为

包括家园范围使用和每日旅行距离在内的游走行为为灵长类动物对其栖息地的行为反应提供了宝贵的信息。我们评估了栖息于印度尼西亚西苏门答腊岛沿海森林的野生银纹鹿（Trachypithecus cristatus）在2018-2021年15个月内614小时的游走行为，重点研究了游走行为与活动预算、食物组成和食物可获得性之间的关系。年家域面积为 8.1 公顷（最小凸多边形）和 11.7 公顷（95% 内核），平均（± 标准差 [SD]）日旅行距离为 926 ± 385 米。日旅行距离与休息百分比呈正相关，与取食和移动百分比呈负相关。此外，日旅行距离与采食嫩叶的百分比呈正相关，而与采食成熟叶片的百分比、采食成熟果实和食物多样性呈负相关。相比之下，家园范围的大小在整个研究期间变化不大，而且我们发现家园范围大小与食物组成或活动预算之间几乎没有显著的相关性。在食物稀缺的季节，银纹鹿每天的旅行距离较长，这可能是因为银纹鹿需要走得更远才能找到长有嫩叶的树木。我们的结论是，银纹鹿的活动范围与其高风险、高回报的策略有关。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.