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Hydropower reservoir reduces Great Argus Argusianus argus density in proximity to its shore
Bird Conservation International ( IF 1.6 ) Pub Date : 2021-11-12 , DOI: 10.1017/s0959270921000368
TIWA ONG-IN 1 , TOMMASO SAVINI 2
Affiliation  

Habitat degradation due to hydropower development within protected areas has a marked negative effect on resident wildlife species. However, efforts to develop appropriate conservation and management plans are hampered by a general lack of quantitative information and a poor understanding of relevant ecological constraints. Great Argus Argusianus argus, a large galliform species sensitive to habitat degradation, can reflect the impacts of the Chiew Larn reservoir in southern Thailand on local wildlife. Great Argus abundance in the remaining lowland areas of Khlong Saeng Wildlife Sanctuary (KSWS) was estimated using line transects along the Chiew Larn reservoir edges and in the forest interior between February and April 2017. The population estimate for KSWS was 108 individuals (95% CI: 41–272) based on the sampled area of 18.06 km2, with a density estimate of 5.9 calling males/km2. The abundance increased with increased distance from the reservoir shoreline, which might be related to the high level of direct and indirect human disturbance close to the hydropower reservoir.



中文翻译:

水力发电水库降低了靠近海岸的大乌鳢Argusianus argus的密度

保护区内水电开发导致的栖息地退化对当地野生动物物种产生了显着的负面影响。然而,由于普遍缺乏定量信息和对相关生态限制的了解不足,制定适当的保护和管理计划的努力受到阻碍。大乌雉Argusianus argus是一种对栖息地退化敏感的大型鸡形物种,可以反映泰国南部 Chiew Larn 水库对当地野生动物的影响。2017 年 2 月至 4 月期间,使用沿着 Chiew Larn 水库边缘和森林内部的线样线估算了 Khlong Saeng 野生动物保护区 (KSWS) 剩余低地地区的大阿格斯数量。KSWS 的种群数量估计为 108 只(95% CI :41-272)基于18.06 km 2的采样面积,密度估计为5.9 只雄性/km 2。丰度随着距水库岸线距离的增加而增加,这可能与水电站水库附近直接和间接的人类干扰程度较高有关。

更新日期:2021-11-12
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