在气候变化下的地中海盆地社区的地理
Damiano Baldan1,2, Yohann Chauvier-Mendes3,4, Diego Panzeri1
1National Institute of Oceanography and Applied Geophysics - OGS, Trieste, Italy.
Global change biology
|January 29, 2026
概括
预计气候变化将导致地中海海底物种分布发生重大变化,许多物种向北移动,面临范围收缩. 保护战略必须适应这些预测的海洋生物多样性变化.
科学领域:
- 海洋生态海洋生态学
- 气候变化生物学 气候变化生物学
- 生物多样性信息学 生物多样性信息学
背景情况:
- 海底生态系统提供关键的功能和服务,支持海洋生物必不可少的多样化的谷底生物.
- 岩物种对气候变化的影响,如气温上升和海洋酸化,非常脆弱.
- 在气候变化情景下,对未来地生物种的分布和多样性变化的评估有限.
研究的目的:
- 预测大约350个地中海盆地物种的当前和未来分布.
- 评估盆地社区的α-多样性 (α-多样性) 和β-多样性 (β-多样性) 预测的变化.
- 根据预测的物种分布转移和多样性变化,确定保护规划的关键区域.
主要方法:
- 训练有素的物种分布模型使用超过10万种物种的发生记录.
- 从最先进的物理和生物地球化学海洋模型中纳入预测因素.
- 根据各种未来气候情景,在地中海地区预测的物种分布和多样性变化.
主要成果:
- 预计大多数物种的分布将向北转移,高达60%的物种经历了范围的收缩,77%的物种向北移动.
- 显著的变化包括范围的碎片化 (20%) 和向更深的水域转移 (30%),受影响最大的是适应寒冷的物种.
- 预计北方的α多样性将增加,地中海南部的多样性将减少;β多样性的变化表明特定地区的物种交换量很大.
结论:
- 气候变化需要适应性保护战略,以保护地中海脆弱的盆地物种.
- 海洋空间规划应优先考虑高流量地区的连接性和稳定多样性区域的保护区.
- 基于这些预测的生态系统管理对于有效的海洋保护至关重要.
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