Zooming in on amphibians: Which is the smallest vertebrate in the world?

IF 2.3 2区生物学 Q2 EVOLUTIONARY BIOLOGY

Zoologica Scripta Pub Date : 2024-02-07 DOI:10.1111/zsc.12654

Wendy H. Bolaños, Iuri Ribeiro Dias, Mirco Solé

引用次数: 0

Abstract

During the last decades several miniaturized frogs have been described from different parts of the world. Those frogs, measuring less than 25 mm, show similar miniaturization features as the loss of phalanges in both the anterior and posterior limbs and the reduction of bone elements. However, there seems to be a limit regarding the minimum size of frogs and here we wanted to find an answer to the question: which is the smallest amphibian in the world? In 2019, an endemic species of toad known only from two localities in southern Bahia, Brazil, was studied. When we compared the size of adult representatives of this species with those of other species discovered in various parts of the world in the last decade, we observed that individuals of Brachycephalus pulex are the amphibians with the smallest total length recorded, thus qualifying them to bear the title of the tiniest anuran amphibian, and also tiniest vertebrate in the world.

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放大两栖动物：世界上最小的脊椎动物是哪一种？

在过去的几十年里，世界不同地区描述了几种小型化的青蛙。这些体型小于 25 毫米的蛙类表现出类似的小型化特征，如前后肢趾骨缺失和骨元素减少。然而，蛙类的最小体型似乎是有限制的，在此，我们希望找到问题的答案：世界上最小的两栖动物是哪一种？2019 年，我们研究了一种仅产于巴西巴伊亚州南部两个地方的特有蟾蜍。当我们将该物种成年代表的体型与过去十年中在世界各地发现的其他物种的体型进行比较时，我们发现蟾蜍（Brachycephalus pulex）的个体是有记录以来总长度最小的两栖动物，因此它们有资格被称为世界上最小的无尾两栖动物，也是世界上最小的脊椎动物。

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

Zoologica Scripta 生物-动物学

CiteScore

5.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologica Scripta publishes papers in animal systematics and phylogeny, i.e. studies of evolutionary relationships among taxa, and the origin and evolution of biological diversity. Papers can also deal with ecological interactions and geographic distributions (phylogeography) if the results are placed in a wider phylogenetic/systematic/evolutionary context. Zoologica Scripta encourages papers on the development of methods for all aspects of phylogenetic inference and biological nomenclature/classification. Articles published in Zoologica Scripta must be original and present either theoretical or empirical studies of interest to a broad audience in systematics and phylogeny. Purely taxonomic papers, like species descriptions without being placed in a wider systematic/phylogenetic context, will not be considered.