评估泰国西北部Salawin河沿岸干燥森林中绿孔雀“预期据点”的状况

IF 1.5 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION
Niti Sukumal, Somying Thunhikorn, T. Savini
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引用次数: 1

摘要

摘要在过去的一个世纪里,由于广泛的人为退化,濒危绿孔雀的适宜栖息地减少了80%。目前,东南亚大陆只剩下六个据点。虽然有人估计其中五个物种的存在和地位,但第六个物种,被定义为位于泰国和缅甸之间萨拉温河沿岸合适的干燥森林中的“预期据点”,并没有很好的记录。这项研究通过估计1)种群密度,2)合适栖息地的当前扩展,以及3)对绿孔雀生存的威胁,评估了该地区作为绿孔雀长期生存据点的地位。该地区的估计密度为0.27只雄蛛/平方公里(CI=0.07–1.01),栖息在9154平方公里的马赛克森林类型中,包括混合干燥松树、落叶混合林和干燥龙脑花。据报告,其他据点的估计数更高,包括勃固约马(缅甸)的0.8只/平方公里、泰国东北部的15.8只/平方米、怀康野生动物保护区(泰国)的1.13–11.34只/平方平方公里、柬埔寨北部的0.15–1.7只/平方公里以及柬埔寨东部/越南中南部的0.15–4.69只/平方千米。狩猎、栖息地干扰和人类的存在对整个调查区域的物种构成了最大的危险。我们的研究结果证实了该地区对该物种长期生存的潜力。然而,这个“预期的据点”,与其他高质量据点一样,可以维持每平方公里超过10名男性的人口,迫切需要一个全面的管理计划来帮助减少人为压力。归根结底,泰国和缅甸之间的跨界管理对于这个据点的长期人口恢复至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the status of the Green Peafowl’s “expected stronghold” in dry forests along the Salawin River, north-west Thailand
Summary The suitable habitats of the Endangered Green Peafowl Pavo muticus have declined by 80% over the past century due to extensive anthropogenic degradation. Currently, only six strongholds remain in mainland South-east Asia. While there are estimates of the species’ presence and status in five of these, the sixth one, defined as an “expected stronghold” located in the suitable dry forest along the Salawin River between Thailand and Myanmar, is not well documented. This study assessed the status of the area as a stronghold for the Green Peafowl’s long-term survival by estimating 1) the population density, 2) the current extension of suitable habitats, and 3) the threats to its survival. The area had an estimated density of 0.27 calling males/km2 (CI = 0.07–1.01) inhabiting 9,154 km2 of a mosaic of forest types, including mixed dry pine, mixed deciduous, and dry dipterocarp forests. Higher estimates were reported in other strongholds, including 0.8 birds/km2 in Bago Yoma (Myanmar), 15.8 birds/km2 in north-east Thailand, 1.13–11.34 birds/km2 in HuaiKhaKhaeng Wildlife Sanctuary (Thailand), 0.15–1.7 birds/km2 in northern Cambodia, and 0.15–4.69 birds/km2 in eastern Cambodia / south-central Vietnam. Hunting, habitat disturbance, and the presence of humans posed the greatest danger to the species across the surveyed area. Our results confirm the potential of the area for the species’ long-term survival. However, this “expected stronghold,” which could sustain a population of over 10 calling males/km2 like other high-quality strongholds, is in dire need of a comprehensive management plan to help reduce anthropogenic pressure. Ultimately, transboundary management between Thailand and Myanmar is crucial for the long-term repopulation of this stronghold.
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来源期刊
CiteScore
3.40
自引率
6.20%
发文量
50
审稿时长
>12 weeks
期刊介绍: Bird Conservation International is a quarterly peer-reviewed journal that seeks to promote worldwide research and action for the conservation of birds and the habitats upon which they depend. The official journal of BirdLife International, it provides stimulating, international and up-to-date coverage of a broad range of conservation topics, using birds to illuminate wider issues of biodiversity, conservation and sustainable resource use. It publishes original papers and reviews, including targeted articles and recommendations by leading experts.
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