全球两栖动物新物种描述的时间和生物地理模式

IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES
Alessandro Frachea, Giovanni Amori, Corrado Battisti, Luca Luiselli
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引用次数: 0

摘要

对 1758-2017 年期间两栖动物新物种描述的时间趋势进行了研究,以了解活跃的分类学家数量的增加是否会影响多年来发现物种数量的增加,以及各个时期对两栖动物三个主要目(Anura、Caudata 或 Gymnophiona)之一的关注是否存在差异。我们使用一套统计方法对这些方面进行了研究。我们强调,两栖动物类群之间的时间效应在统计上并不一致,仅对无尾目而言,年份(1758-2017 年)对物种描述数量的影响非常大。我们还发现,活跃的分类学家数量(近几十年来显著增加)与每年发现的两栖动物物种数量之间存在显著的正相关关系。此外,我们还发现,在新热带地区,每年新描述的增加速度明显更快。今后,我们有必要将观察到的模式与不同生物地理区域内国家的具体历史结合起来,包括 "殖民时代 "的遗产、殖民化后的影响、"冷战 "和现代等方面。此外,还就物种与生物地理变量、稀有性类型、威胁类别和生态行为特征之间的相关性提出了进一步的研究建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Temporal and biogeographical patterns of new species descriptions in worldwide amphibians

Temporal and biogeographical patterns of new species descriptions in worldwide amphibians

The temporal trends in species’ descriptions of new amphibian species in the period 1758–2017 were studied to understand whether the increase in the number of active taxonomists could have influenced the increase in the number of species discovered over the years, and whether there was any differential attention during the various periods towards especially one of three main orders of amphibians (Anura, Caudata or Gymnophiona). These aspects were studied using a suite of statistical methods. We highlighted that the temporal effect was not statistically homogeneous among the amphibian taxa, with a very strong effect of the years (1758–2017) on the species description numbers for only the order Anura. We also showed that there was a significant positive correlation between the number of active taxonomists (that increased remarkably in recent decades) and the yearly number of discovered amphibian species. Moreover, we showed that the rise of new descriptions by year was significantly quicker in the Neotropical region. In future years, it would be interesting to place the observed patterns within the specific history of the countries situated within the various biogeographic regions, including such aspects as the legacy of the ‘colonial time’, the post-colonization effect, the ‘cold war’, and the modern times. Further suggestions on possible research about correlation to biogeographic variables, type of rarity, threat category, and eco-behavioral traits of the species have been added.

Graphical abstract

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来源期刊
Rendiconti Lincei-Scienze Fisiche E Naturali
Rendiconti Lincei-Scienze Fisiche E Naturali MULTIDISCIPLINARY SCIENCES-
CiteScore
4.10
自引率
10.00%
发文量
70
审稿时长
>12 weeks
期刊介绍: Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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