城市化和气候推动了整个沙漠城市生态系统的长期鸟类社区趋势
Jeffrey D Haight1, Fabio S de Albuquerque2, Heather L Bateman2
1Global Institute of Sustainability and Innovation, Arizona State University, Tempe, Arizona, USA.
概括
城市化和气候变化对沙漠城市的鸟类社区产生了负面影响,影响了物种丰富和丰富. 了解这些动态对于管理城市生物多样性和生态系统服务至关重要.
科学领域:
- 生态生态学 生态生态学
- 城市生态城市生态学
- 保护生物学 保护生物学
背景情况:
- 生物多样性丧失是一个越来越令人担忧的问题,特别是在城市化地区和气候变化.
- 多种环境压力因素对野生动物,特别是城市沙漠生态系统的综合影响尚不清楚.
- 数据的局限性阻碍了对生态系统服务至关重要的各种物种和功能群体对环境变化后果的预测.
研究的目的:
- 调查城市化和气候变化如何影响亚利桑那州城的鸟类社区动态.
- 分析跨年和年内景观变化对鸟类物种丰富度,丰富度和功能群体的影响.
- 评估20多年来环境驱动因素与鸟类群落特征之间的关系.
主要方法:
- 利用了两十年 (2001-2016) 的多季度空间数据集,将环境条件 (城市化,植被,温度) 与鸟类社区数据 (物种丰富,繁多) 结合起来.
- 分析季节性数据 (冬季和春季),以捕捉鸟群的动态变化.
- 研究了环境因素的长期趋势和空间变化,以及它们与鸟类社区指标的相关性.
主要成果:
- 增加的不透气表面面积和土地表面温度与总体的鸟类繁多和物种丰富度有负相关性,特别是在冬季.
- 城市化和温度的影响在不同鸟类功能群体之间有很大的差异.
- 调查结果表明,城市鸟类社区提供的生态系统服务和服务缺失的结果是混合的.
结论:
- 环境驱动因素的长期趋势在很大程度上影响了城市干旱地区的野生动物社区动态.
- 了解这些关系对于有效的景观管理和评估人野生动物相互作用至关重要.
- 结果为保护城市生物多样性和保持快速发展地区的生态系统服务提供了洞察力.
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