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时间序列利基建模揭示了山区保护区息地适宜性和生态功能的下降趋势
Inês Freitas1, João Alírio2,3, Nuno Garcia4
1Faculty of Sciences, CICGE-Centro de Investigação em Ciências GeoEspaciais, University of Porto, Vila Nova de Gaia, Portugal. ifinesfreitas92@gmail.com.
Environmental management
|February 18, 2026
概括
保护区的生物多样性监测显示,在过去二十年中,息地适合性正在下降. 这影响了所有物种群体,功能特征影响了脆弱性,突出了保护需求.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 遥感 遥感 遥感 遥感
背景情况:
- 在保护区有效监测生物多样性对于减轻生物多样性丧失和评估保护政策成功至关重要.
- 整合卫星遥感,生态利基模型和时间序列分析,为跟踪息地适宜性和物种脆弱性提供了强大的方法.
- 葡萄牙东北部的Montesinho/Nogueira特别保护区作为本次生物多样性评估的研究地点.
研究的目的:
- 通过使用综合技术实施和评估监测生物多样性趋势的框架.
- 在22年期间 (2001-2023) 评估息地适应性和物种脆弱性的变化.
- 识别影响物种和特定群体对环境变化反应的因素,在保护区内.
主要方法:
- 通过使用MaxEnt算法和中等分辨率成像光谱辐射仪 (MODIS) 卫星数据,为342种物种生成了生态利基模型.
- 时间序列分析 (2001-2023) 和曼-肯达尔测试被用来检测息地适应性的趋势.
- 分析包括单个物种,主要分类组,功能组和保护状况.
主要成果:
- 在过去二十年中,在所有分类组 (血管植物,两动物,爬行动物,鸟类,哺乳动物) 和生态功能中观察到息地适宜性的显著下降.
- 息地适应性趋势在物种和群体之间表现出很高的变化,表明生物多样性对环境变化的复杂反应.
- 由于息地减少,与大西洋亲属的物种,与耕地和湿地相关的物种以及食虫物种被确定为面临更高风险的物种.
结论:
- 该研究强调,迫切需要在保护区开展全面的生物多样性监测计划.
- 结合遥感,利基建模和时间序列分析的综合框架有效地为基于证据的保护战略提供信息.
- 调查结果强调了这种方法对面临环境变化的保护区的全球保护工作的有用性.
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