Abstract Amphibians are very diverse, widely distributed, and the most endangered class of vertebrates. As with other taxa, effective conservation of amphibians needs to be supported by detailed scientific knowledge. However, species rich and broadly distributed taxa are typically characterized by high variability in research effort. Our objective was therefore to understand which factors (ecological and cultural) have led some amphibian species to be more researched than others. We used two proxies of research effort: i) the total number of articles on Web of Science (WoS) that mention the scientific name (or synonyms) of each species, and; ii) the number of conservation science articles on WoS that mention the scientific name (or synonyms) of each species. These measures were used as dependent variables in zero hurdle regression models with the aim of identifying the most important factors driving species-level knowledge production. Well researched species (generally, and for conservation) tend to have a longer history of scientific research, come from countries with high scientific capacity, have large body size, and to be present in man-made habitats. Endangered species tend to be less researched, generally and for conservation, possibly because they are often more difficult to study: many endangered amphibians are restricted to small, fragmented and remote habitats in countries with low scientific capacity. We conclude with a discussion of how taxonomic biases in research effort on amphibians can be addressed given the limited funds available for conservation research.

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两栖动物研究中的分类偏差：研究人员是否对保护需求做出反应？

摘要 两栖动物种类繁多，分布广泛，是脊椎动物中最濒危的一类。与其他分类群一样，两栖动物的有效保护需要详细的科学知识的支持。然而，物种丰富且分布广泛的分类群通常以研究工作的高度可变性为特征。因此，我们的目标是了解哪些因素（生态和文化）导致某些两栖动物比其他两栖动物受到更多的研究。我们使用了两个研究工作的代表：i) Web of Science (WoS) 上提及每个物种的科学名称（或同义词）的文章总数；ii) WoS 上提及每个物种的科学名称（或同义词）的保护科学文章的数量。这些措施被用作零障碍回归模型中的因变量，目的是确定推动物种水平知识生产的最重要因素。经过充分研究的物种（一般来说，为了保护）往往具有较长的科学研究历史，来自具有高科学能力的国家，体型较大，并且存在于人造栖息地中。濒危物种的研究通常较少，一般而言，保护方面的研究较少，可能是因为它们通常更难研究：许多濒危两栖动物仅限于科学能力低的国家的小而分散和偏远的栖息地。鉴于可用于保护研究的资金有限，我们最后讨论了如何解决两栖动物研究工作中的分类偏差。