阿拉伯鹧鸪分布范围北部边界的丰度及其限制因素

Q4 Agricultural and Biological Sciences Western Birds Pub Date : 2023-04-20 DOI:10.3390/birds4020015
A. Soultan, Moayyed Sher Shah, A. M. Almalki, S. Browne, N. Arcilla
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引用次数: 1

摘要

阿拉伯鹧鸪(Alectoris melanocephala),是阿拉伯沙漠特有的鸟类,群居,栖息在有斑驳植被的岩石山坡上。在整个活动范围内,阿拉伯鹧鸪与狩猎和栖息地破坏作斗争,这些因素可能会限制它们的分布和数量。虽然这个物种的丰度被认为是稳定的,但没有对其种群规模进行实际估计。我们评估了阿拉伯鹧鸪在沙特阿拉伯北部边界的分布和丰度。在Harrat Uwayrid生物圈保护区,阿拉伯鹧鸪的密度和丰度分别为25.6 (6.16 SE)只/km2和~118只/km2,在受干扰较少的地点和靠近岩石露头和山坡的地方个体数量较多。在有狩猎活动的地方,如有狩猎庇护所所示,鹧鸪的数量极低或根本没有。我们的研究首次对阿拉伯鹧鸪在其活动范围的北部极限进行了定量评估,并强调了减少狩猎、放牧和野驴威胁的必要性,并采取保护措施以减轻与鹧鸪数量减少相关的因素。
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Arabian Partridge Abundance and Limiting Factors at the Northern Boundary of Its Range
The Arabian Partridge (Alectoris melanocephala), is an endemic bird species of the Arabian Desert that lives in groups and inhabits rocky hillsides with patchy vegetation. Throughout their range, Arabian Partridges contend with hunting and habitat destruction, factors that may limit their distribution and abundance. Although the abundance of this species has been assumed to be stable, no actual estimate of its population size has been undertaken. We assessed the distribution and estimated the abundance of the Arabian Partridge at the northern boundary of its range in Saudi Arabia. The estimated density and abundance of the Arabian Partridge in Harrat Uwayrid Biosphere Reserve was 25.6 (6.16 SE) birds/km2 and ~118 individuals, respectively, with higher numbers of individuals in less disturbed sites and near rocky outcrops and hillsides. In sites where hunting occurred, as indicated by the presence of hunting shelters, partridge numbers were extremely low or absent. Our study provides the first quantitative assessment of the Arabian Partridge at the northern limit of its range and highlights the need to reduce threats from hunting, livestock grazing, and feral donkeys and to undertake conservation measures to mitigate factors associated with partridge decline.
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Western Birds
Western Birds Agricultural and Biological Sciences-Animal Science and Zoology
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