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Joah R Madden¹, Maureen I A Woodburn², Clive E Bealey³

¹Center for Research in Animal Behaviour, Psychology University of Exeter Exeter UK.

Ecology and evolution

|March 6, 2026

概括

被释放的鸟会影响释放地点500米以内的林地. 对植物群落和土壤营养素的生态影响随着距离的增长而减少,这表明目前的500米缓冲区适合保护古代半自然森林 (ASNW).

科学领域:

生态生态学生态生态学
保护生物学保护生物学
游戏鸟管理游戏鸟管理

背景情况:

被释放的羊 (Phasianus colchicus) 在英国森林中很常见,用于狩猎.
羊的高密度可以通过掠食,践踏和营养物质的改变对动植物产生负面影响.
除了释放地点之外,这些生态影响的空间范围尚不清楚.

研究的目的:

为了确定从释放的距离,可以检测狩猎鸟的生态影响.
评估羊密度对土壤营养,植物群落和枯木的影响.
为古代半自然森林 (ASNW) 提供野生动物管理和保护策略的信息.

主要方法:

在英格兰和威尔士的ASNW进行了20次射击,从释放中测量了1公里的截面.
记录了羊的数量,苗/小树的密度,血管植物的丰富性和枯木腐烂.
分析了土壤营养物质,裸露的土壤,以及耐性/指标物种的存在.

主要成果:

羊数量和负面的生态影响 (少种苗,较低的植物丰富性) 随着距离的距离而下降.
这些冲击通常在500米以上没有被检测到.
土壤营养和古老林地指标没有显示与距离一致的变化;一些杂草物种在更远的地方更常见.

结论:

在ASNW中释放羊的直接负面生态影响仅限于释放地点500米以内.
目前在许可证中使用的500米缓冲区似乎适合保护指定森林.
在评估对林地生态系统的潜在影响时,管理策略应考虑这种空间限制.

关键词:

这是古老的半自然林地.生物多样性生物多样性狩猎狩猎狩猎狩猎 pheasants pheasants 是一种小鸟类.土壤营养物质土壤营养物质

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