The Impact of Climate Change on High-Priority Areas of Conservation for Amphibians in North American Drylands

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography Pub Date : 2025-05-10 DOI:10.1111/jbi.15155

Jared E. Johnson, Heather L. Bateman, Adam Stein, Fábio Suzart de Albuquerque

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引用次数: 0

Abstract

Aim

The goals of this study were to (1) identify how climate change impacts the distribution of amphibian species and high-priority conservation areas (HPCA) in the drylands of the Southwest United States and Northern Mexico, (2) describe the relationship between environmental variables and spatial configurations of HPCA and (3) explore how climate change will impact the distribution of HPCA and investigate the relationship between HPCA and protected area (PA) network.

Location

Southwest United States and Northern Mexico.

Taxon

Amphibians.

Methods

We used distribution maps for 209 amphibian species to estimate surrogates of amphibian diversity, assessed by rarity-weighted richness (RWR), site importance (Zonation) and species richness. Then, we used species accumulation curves to assess their efficiency in representing amphibians in the least number of sites. Next, we used the most effective surrogate to identify HPCA for amphibians. We used environmental variables, usually related to amphibian distribution, and random forest models to assess the impact of climate on the spatial configuration of HPCA in the current and future times. We also used PA networks to assess their representation.

Results

RWR produced a similar spatial configuration of HPCA as Zonation but could not depict the same level of connectivity. HPCAs were observed mainly across California, central Texas and western Mexico. The spatial distribution of HPCA was mostly influenced by precipitation, temperature and solar radiation. Climate change will influence the future distribution of HPCA. The overlay between HPCA and PA is weak.

Main Conclusion

Climate change is becoming an ever-increasing issue for conservation efforts, especially in dryland ecosystems where natural resources are already scarce for native species. Results show an alteration in the spatial configuration of amphibian HPCA, and much is still needed to protect and manage them.

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气候变化对北美旱地两栖动物高优先保护区的影响

本研究的目的是：(1)确定气候变化如何影响美国西南部和墨西哥北部旱地两栖动物物种和高优先保护区（HPCA）的分布；(2)描述环境变量与保护区资源资源空间配置的关系；(3)探讨气候变化对保护区资源资源分布的影响，并研究保护区资源资源资源与保护区网络的关系。地理位置：美国西南部和墨西哥北部。分类单元两栖动物。方法利用209种两栖动物分布图，通过稀有加权丰富度（RWR）、样地重要性（地带性）和物种丰富度评价两栖动物多样性的替代物。然后，我们利用物种积累曲线来评估它们在最少的地点代表两栖动物的效率。接下来，我们使用最有效的替代物来鉴定两栖动物的HPCA。我们使用环境变量（通常与两栖动物分布有关）和随机森林模型来评估气候对当前和未来HPCA空间结构的影响。我们还使用PA网络来评估它们的表征。结果RWR产生了与分区相似的HPCA空间构型，但不能描述相同水平的连通性。hpca主要在加利福尼亚、德克萨斯中部和墨西哥西部观测到。HPCA的空间分布主要受降水、温度和太阳辐射的影响。气候变化将影响未来HPCA的分布。HPCA和PA之间的叠加较弱。气候变化正在成为保护工作日益严重的问题，特别是在自然资源对本地物种来说已经稀缺的旱地生态系统中。结果表明，两栖动物种群的空间格局发生了变化，对它们的保护和管理仍有很多工作要做。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Biogeography 环境科学-生态学

CiteScore

7.70

自引率

5.10%

发文量

203

审稿时长

2.2 months

期刊介绍： Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.