在英格兰的皮克地区,山的数量下降了七年
Carlos P E Bedson1,2, Katherine Walsh1, Humphrey Q P Crick1
1Natural England, Eastbrook Cambridge UK.
Ecology and evolution
|March 19, 2025
概括
英国山在皮克地区的数量在2017年至2024年期间大幅下降,超过66%. 这种临灭绝的形动物在英国面临灭绝的危险,如果没有紧急的保护工作.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 野生动物管理 野生动物管理
背景情况:
- 英格兰的山 (Lepus timidus scoticus) 是19世纪70年代苏格兰转移后建立的剩余种群.
- 这种亚种只在峰区发现,使其成为独特而脆弱的野生动物特征.
研究的目的:
- 为了监测2017年至2024年的峰区山的种群密度和丰度.
- 评估不同息地类型山密度的变化,并评估总体人口趋势.
主要方法:
- 利用远程抽样分析用于2017年至2024年的标准化人口监测.
- 在两个关键地点Bleaklow和Margery Hill收集数据,使用一致的调查技术.
- 根据息地类别的分层密度估计,包括恢复的毛毯沼泽,酸性草原和草沼泽.
主要成果:
- 山密度的统计显著下降,从2017年的15.9头/平方公里下降到2024年的6.7头/平方公里 (p=0.0001).
- 在恢复的毛毯沼泽地 (27.9头/平方公里) 观察到最高密度,明显高于其他息地.
- 峰区的人口丰富度从估计的3562人减少到1038人,其中最大的下降是草沼泽.
结论:
- 英格兰山种群的数量急剧下降,如果目前的趋势继续下去,灭绝的风险很高.
- 恢复的毛毯沼泽息地似乎对山的持久性至关重要.
- 迫切的保护干预是必要的,以防止这种独特的Lagomorph人口的消失.
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