利用不同家域计算方法对野骆驼栖息地空间利用的比较
收稿日期: 2022-03-30
录用日期: 2022-07-05
网络出版日期: 2023-01-10
基金资助
甘肃省林业和草原科技计划项目(2020kj073);国家自然科学基金青年科学基金(31800324);新疆罗布泊野骆驼国家级自然保护区综合科学考察项目
Wild camel space use as determined by different home range estimators
Received date: 2022-03-30
Accepted date: 2022-07-05
Online published: 2023-01-10
周永祥 , 薛亚东 , 刘少创 , 刘建泉 , 周多良 . 利用不同家域计算方法对野骆驼栖息地空间利用的比较[J]. 兽类学报, 2023 , 43(1) : 102 -108 . DOI: 10.16829/j.slxb.150672
Satellite tracking and positioning technology has been widely used to estimate species home ranges, habitat selection, and migration behavior, which can provide the scientific basis necessary for endangered species conservation and management. In this study, the home ranges of two wild camels (Camelus ferus) were determined using minimum convex polygons, Kernel density estimators, and dynamic Brownian Bridge Movement Models (dBBMM).The advantages, disadvantages, and applicable scenarios of these methods were discussed and key habitats and conservation priority areas of wild camels were identified. The dBBMM home range was the most accurate in relation to the distribution of the camels studied. The average home range (95% dBBMM) and the average core home range (50% dBBMM) were 300.11 km2 and 7.02 km2, respectively. The average monthly home range (95% dBBMM) of the two wild camels was 164.98 km2 and 39.67 km2, respectively, and the average monthly core home range (50% dBBMM) was 4.69 km2 and 2.71 km2, respectively. The northern and western regions of the nature reserve harbored key habitats for wild camels, and should be regarded as conservation priority areas. We propose the use of a multi-method estimation to comprehensively and holistically identify key habitats. The dBBMM home range calculations of wild camels at different life history stages can identify their stopover sites and corridors, which is helpful for the development of management measures and fine-scale conservation actions.
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