一种新的方法,用于评估人类修改的景观中的通用指标物种群的时空息地可用性
Nivedita Varma Harisena1, Adrienne Grêt-Regamey1, Maarten J van Strien1
1Planning of Landscape and Urban Systems PLUS, Department of Civil, Environmental and Geomatic Engineering, ETH Zurich, Stefano-Franscini-Platz 5, CH-8093 Zurich, Switzerland.
概括
历史息地可用性显著预测了当前物种的出现,揭示了对景观变化的时间滞后反应. 这种方法有助于修改景观中的保护规划.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 景观生态学 景观生态学
背景情况:
- 景观变化影响物种息地的可用性,可能导致灭绝债务.
- 了解物种对息地变化的时间滞后反应对于人类修改的景观中的生物多样性保护至关重要.
研究的目的:
- 为了分析113年来瑞士高原的息地可用性变化.
- 评估历史息地可用性和当前物种发生率之间的关系.
主要方法:
- 计算可用息地量 (AHA) 使用耐力表面和内核随着时间的推移.
- 分析了使用K-Means时间序列集群的时空-空间AHA模式.
- 将AHA轨迹与物种发生情况和当前最佳实践方法进行比较.
主要成果:
- 确定了十个不同的AHA轨迹,许多显示下降.
- 较高的历史AHA与较大的当前物种存在有显著的相关性.
- 1933年的息地可用性显示出与当前物种的最强联系,表明时间滞后的反应.
结论:
- 历史性息地可用性动态是了解物种分布和时间滞后反应的关键.
- 开发的方法有效地将过去的景观变化与当前的生物多样性联系起来.
- 这种方法支持在人类改变的环境中有效的保护规划.
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