Areas of endemism and environmental heterogeneity: a case study in Mexican legumes

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-02-22 DOI:10.1071/SB21037

Maribel Arenas-Navarro, T. Escalante, César Miguel-Talonia, A. Silva-Galicia, O. Téllez-Valdés

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Abstract

Abstract. Fabaceae is a monophyletic family comprising more than 22 000 species worldwide. In Mexico, it is the second-most species rich family, inhabiting multiple ecosystems with a high diversity of life forms. Our aims were to (1) identify areas of endemism (AEs) by using endemicity analysis at different cell sizes (1°, 0.5° and 0.25°) for 488 Mexican legumes, (2) describe the climatic and topographic heterogeneity of AE, (3) determine whether there is a positive relationship between AEs and climatic and topographic heterogeneity and (4) examine the conservation status of legumes that defined the AEs. We found six general AEs, supported by 63 species, with endemicity index values ranging from 2.05 to 6.86. These general areas had zones where biogeographical provinces intersected and exhibited a higher environmental heterogeneity. Areas detected at 1° showed a positive relationship between endemicity index and environmental heterogeneity. Legume species currently lack legal protection in Mexico, 69% of the endemic species do not have an evaluation category according to the International Union for Conservation of Nature, and eight species are in some risk category. Future conservation efforts should focus on protecting endemism areas from accomplishing representative natural protected areas.

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地方病区域和环境异质性：以墨西哥豆科植物为例

摘要蚕豆科是一个单系家族，在全世界有22000多种。在墨西哥，它是物种第二多的家族，栖息在多种生态系统中，生命形式高度多样。我们的目的是（1）通过对488种墨西哥豆科植物在不同细胞大小（1°、0.5°和0.25°）下的地方性分析，确定地方病（AE）区域；（2）描述AE的气候和地形异质性，（3）确定AE与气候和地形异质性之间是否存在正相关关系，以及（4）检查定义AE的豆类的保护状况。我们发现了6个一般AE，有63个物种支持，地方性指数值在2.05到6.86之间。这些一般地区有生物地理省份交叉的区域，并表现出更高的环境异质性。在1°处检测到的区域显示出地方性指数与环境异质性之间的正相关。豆类物种目前在墨西哥缺乏法律保护，根据国际自然保护联盟的数据，69%的特有物种没有评估类别，8个物种属于某种风险类别。未来的保护工作应侧重于保护地方性地区，使其不成为具有代表性的自然保护区。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.