鸟类社区对森林到沼泽地恢复的反应不同
Colin Guilfoyle1, John Lusby2, Elvira de Eyto3
1Marine and Freshwater Research Centre, Atlantic Technological University, Old Dublin Rd, Galway, H91 T8NW, Ireland; Marine Institute, Newport, Mayo, F28 PF65, Ireland.
Journal of environmental management
|December 24, 2024
概括
恢复爱尔兰的森林覆盖沼泽地改善了鸟类群落,特别是稀有物种,在16-20年后取得了部分成功. 息地结构的变化会随着时间的推移显著影响鸟类的恢复.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 鸟类生态学 鸟类生态学
背景情况:
- 自20世纪90年代以来,非本土针叶树的植林对爱尔兰和英国的毛毯沼泽产生了影响.
- 恢复工作旨在恢复水文功能和泥炭地生物多样性.
- 评估鸟类社区对恢复的反应对于保护战略至关重要.
研究的目的:
- 为了评估毛毯沼泽恢复的保护效益,干预后16-20年.
- 为了比较鸟类群落 (丰富度,密度,组成) 在恢复,近自然,和森林的沼泽.
- 为了确定影响恢复后鸟类社区组成的息地变量.
主要方法:
- 实地研究比较了三个地点类型的鸟类群落:爱尔兰西部的恢复,近自然和森林覆盖的低地毯沼泽.
- 收集有关鸟类丰富度和密度的数据,包括爱尔兰保护关注的鸟类 (BoCCI).
- 分析结构性息地变量 (例如,针叶覆盖,灌木高度,枯木) 以解释社区的变化.
主要成果:
- 恢复并没有改变鸟类的整体丰富性,但降低了鸟类的整体密度.
- 重要的是,与森林相比,BoCCI的丰富性在恢复的地点增加.
- 恢复后的沼泽地区的鸟类群落更像是接近自然的地区,而不是森林覆盖的地区,这表明部分成功.
- 针叶覆盖,矮灌木高度,枯木和宽叶覆盖是影响社区组成的关键息地变量.
结论:
- 森林到沼泽的恢复在使鸟类社区受益方面取得了部分成功,特别是红色名单上的物种.
- 鸟类群落的恢复是一个漫长的过程,受到不断变化的息地结构和水文恢复有效性的影响.
- 持续管理和考虑当地条件对于成功的长期沼泽恢复结果至关重要.
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