Shawon Raf Ana Rabbi, Rahman Md Matiur, Iqbal Md Mehedi, Russel Mahfuz A, Moribe Junji
Laboratory of Wildlife Resources, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Laboratory of Food and Environmental Hygiene, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Animals (Basel). 2024 Dec 10;14(24):3568. doi: 10.3390/ani14243568.
The Chattogram Hill Tracts (CHTs) in Bangladesh have a rich biodiversity, hosting a wide range of wild mammal species, underscoring the importance of systematic monitoring focused on conservation efforts. This study aims to assess the diversity and abundance of small- and medium-sized wild mammal species in Pittachhara Forest in the CHTs. A comprehensive wildlife monitoring survey was conducted in this forest using strategically placed camera traps to identify the wild species diversity, and we evaluated the activity patterns and seasonal variations for the period of February 2023 to August 2024. The camera trap identified eight species of small- and medium-sized wild mammals: the Bengal slow loris, northern pig-tailed macaque, leopard cat, large Indian civet, common palm civet, crab-eating mongoose, northern tree shrew, and black rat. The activity patterns showed distinct temporal behaviors among these wild mammals, with nocturnal activity dominating for the Bengal slow loris and leopard cat, while the northern pig-tailed macaque exhibited diurnal activity. Seasonal variations demonstrated a significant difference in increased activity among most wild mammal species throughout the summer, particularly the large Indian civet and crab-eating mongoose, likely due to favorable environmental conditions, and decreased activity in the winter ( < 0.05). The findings suggest an intricate connection between species-specific behaviors and environmental factors that influence activity patterns, with increased activity in summer and a decrease in winter, indicating that summer conditions may enhance the movement and foraging behaviors of mammals. This study underscores the necessity for continuous biodiversity monitoring followed by conservation efforts in Pittachhara Forest to reduce the threats of habitat fragmentation, human disturbances, and inadequate protection, thus protecting the survival of endangered wild mammal species and maintaining the environmental harmony of this small, protected area.
孟加拉国的吉大港山区（CHTs）拥有丰富的生物多样性，栖息着种类繁多的野生哺乳动物，这凸显了专注于保护工作的系统监测的重要性。本研究旨在评估吉大港山区皮塔查拉森林中小型野生哺乳动物物种的多样性和丰富度。在这片森林中进行了一项全面的野生动物监测调查，利用精心放置的相机陷阱来识别野生物种的多样性，并评估了2023年2月至2024年8月期间的活动模式和季节变化。相机陷阱识别出了八种中小型野生哺乳动物：孟加拉懒猴、北豚尾猕猴、豹猫、大印度麝猫、椰子狸、食蟹獴、北树鼩和黑家鼠。活动模式显示，这些野生哺乳动物具有明显的时间行为差异，孟加拉懒猴和豹猫以夜间活动为主，而北豚尾猕猴表现出日间活动。季节变化表明，大多数野生哺乳动物物种在整个夏季的活动增加存在显著差异，特别是大印度麝猫和食蟹獴，这可能是由于有利的环境条件，而在冬季活动减少（<0.05）。研究结果表明，物种特定行为与影响活动模式的环境因素之间存在复杂的联系，夏季活动增加，冬季活动减少，这表明夏季条件可能会增强哺乳动物的活动和觅食行为。本研究强调了在皮塔查拉森林持续进行生物多样性监测并随后开展保护工作的必要性，以减少栖息地破碎化、人类干扰和保护不足的威胁，从而保护濒危野生哺乳动物物种的生存并维持这个小保护区的环境和谐。
