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移动中的东北大西洋弹性分支群:作为应对气候变化的功能重组

Noémie Coulon¹, Sophie Elliott², Nils Teichert¹

¹Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), MNHN, CNRS, IRD, SU, UCN, UA, Dinard, France.

Global change biology

|January 26, 2024

概括

气候变化正在改变东北大西洋的弹性鱼 (鱼和滑板) 息地,适合的地区正在扩大并向东北和更深处转移. 这些变化影响了弹性枝状的特征,社区组成和热带水平,需要基于特征的保护.

科学领域:

海洋生物学海洋生物学
气候变化生态学气候变化生态学
渔业科学渔业科学

背景情况:

在全球变化下,海洋鱼类的空间分布变化已知,但弹性分支的反应未得到充分研究,可能低估了威胁.
藻类扮演着至关重要的生态系统角色,面临着高度的灭绝风险,使其应对气候变化变得至关重要.

研究的目的:

调查气候变化对1997年至2020年东北大西洋九种弹性枝条物种空间分布的影响.
分析息地适合性的变化如何影响弹性枝社区和特征组成.

主要方法:

利用了24年的时间序列,科学地底拖网调查数据 (1997-2020).
采用了物种群落的层次模型 (联合物种分布模型).
综合物种特征以评估社区组成的变化.

主要成果:

适合四种弹性枝条物种的息地平均增加了1.6.的因素.
六种物种表现出向东北和/或更深的水域分布转移.
息地适合性的变化改变了弹性枝状特征的组成,社区深度,平均热量水平,成熟时的平均尺寸和生育能力.

结论:

气候变化在东北大西洋显著改变了弹性枝的空间分布和社区结构.
将物种特征纳入管理对于识别脆弱物种和减轻气候变化和渔业压力的不可逆转影响至关重要.

关键词:

气候变化气候变化气候变化社区社区社区社区社区社区社区社区社区弹性分支弹性分支联合物种分布建模的联合物种分布建模.范围的变化范围的变化范围.品种特征品种特征品种特征

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