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哺乳动物轨迹丰富度与森林景观完整度指数之间的相关性验证了森林实际生态完整性的有效性
Francesca Malcangi1, Andreas Lindén2, Janne Sundell3
1Lammi Biological Station, University of Helsinki, Pääjärventie 320, 16900, Lammi, Finland. francesca.malcangi@helsinki.fi.
Oecologia
|September 4, 2024
概括
森林景观完整性指数 (FLII) 有效评估森林退化对哺乳动物种群的影响. 本地物种在高度完整的森林中壮成长,而适应性和入侵性哺乳动物更喜欢受干扰的地区.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 环境科学 环境科学
背景情况:
- 人类干扰对森林生态完整性和相关物种产生负面影响.
- 现有的森林完整性指数往往缺乏与生物多样性评估的直接联系.
- 了解森林退化对野生动物的影响对于保护至关重要.
研究的目的:
- 评估全球森林景观完整性指数 (FLII),以评估人为森林退化.
- 分析森林完整性与芬兰哺乳动物物种丰富性之间的关系.
- 确定FLII是否可以预测物种适应人类修改的森林环境的适应性.
主要方法:
- 与芬兰中南部的FLII分数相关的哺乳动物冬季轨道数据 (17个物种,2016-2020年).
- 纳入森林和树冠覆盖数据以完善息地偏好分析.
- 在不同的FLII级别中比较本地和非本地/侵入性物种的丰富性.
主要成果:
- FLII与哺乳动物丰富度有显著的相关性,反映出森林完整性的差异.
- 本地北极哺乳动物在高FLII地区更为丰富;适应性/侵入性哺乳动物更喜欢低FLII地区.
- 森林和树冠覆盖提供了额外的息地偏好洞察力,这些洞察力仅仅由FLII捕获.
结论:
- FLII是评估森林完整性对哺乳动物群落的影响的宝贵工具.
- 将FLII与本地数据结合起来,可以更好地了解物种对人类修改的景观的反应.
- 这些研究结果支持针对退化森林中的物种制定有针对性的保护战略.
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