保护区对鸟类食物网的混合影响
Lucie Thompson1, Nuria Galiana2, Konstans Wells1
1Department of Biosciences, Swansea University, Swansea, UK.
Proceedings. Biological sciences
|June 3, 2025
概括
保护区 (PAs) 增加了鸟类的物种丰富性和体量,但它们对复杂的食物网的影响各不相同. 有效的保护需要考虑PA网络特征和明确的管理目标.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 生物多样性研究 生物多样性研究
背景情况:
- 保护区对于减轻生物多样性丧失和物种灭绝至关重要.
- 虽然PA增强了物种的丰富性和丰富性,但它们对物种相互作用的影响仍未得到充分研究.
- 了解食物网的动态对于评估对全球环境变化的保护有效性至关重要.
研究的目的:
- 评估欧洲保护区 (PAs) 对鸟类食物网结构的影响.
- 确定影响PA在保护物种丰富之外的生物多样性方面的有效性因素.
- 为优化PA指定和管理提供基于证据的建议.
主要方法:
- 在45个欧洲PA网络中利用了376,556个公民科学记录,记录了45个欧洲PA网络中的509种鸟类.
- 分析了食物网指标的变化,包括物种丰富性,人体质量和相互作用复杂性.
- 相关的PA网络特征 (偏远,息地多样性,人类压力,农业) 与食物网的反应.
主要成果:
- 保护区 (PAs) 总体上增加了鸟类物种丰富度和顶级和中间物种的体质.
- PAs对其他食物网特征 (例如相互作用多样性) 的影响在整个欧洲是可变的.
- PA网络特征显著影响了食物网的反应,其中偏远和息地多样性显示出显著的影响.
- 具有特定保护目标的PA,如欧洲鸟类指令下的PA,支持更复杂的食物网.
结论:
- 在维护复杂的食物网方面,PA的有效性是混合的,并且取决于环境.
- PA网络的地理和环境因素极大地影响了它们的保护结果.
- 将明确的管理目标和环境背景整合到PA指定中对于加强生物多样性保护至关重要.
- 保护战略必须超越简单的物种丰富度指标,涵盖复杂的物种相互作用.
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