ABSTRACT

The lack of information on biological aspects of small mammals in Brazil fits into two of the main gaps in knowledge of biodiversity – the Linnean and Wallacean shortfall. We performed a broad compilation of studies developed in the Paraná state to consolidate the first list of non-volant small mammal species. Furthermore, we indicate which regions lack information and greater sampling efforts to understand the biological aspects of small mammals. We listed 50 species belonging to 30 genera, five families, and two orders, which represent 37% of marsupials and small rodent species occurring in the Brazilian Atlantic Forest. Our results indicate that are regions in the Paraná state, such as the southwest, without a single record of small mammals, reveling a Wallacean shortfall of approximately 138.584 km². Studies on the small-bodied mammal fauna in the state of Paraná are influenced by accessibility bias, concentrated at sites less than 50 kilometers distant from cities, roads, or airports. New research will not only have the challenge of knowing the species richness in regions that are still poorly or hitherto no studied, but also evaluate the state and the population dynamics of the species that persist in densely anthropized areas.

摘要

巴西缺乏关于小型哺乳动物生物学方面的信息，这与生物多样性知识的两个主要差距——林奈和华莱士的不足相吻合。我们对在巴拉那州开展的研究进行了广泛的汇编，以巩固第一份非自愿小型哺乳动物物种的清单。此外，我们指出哪些地区缺乏信息和更大的抽样努力来了解小型哺乳动物的生物学方面。我们列出了属于 30 属、5 科和 2 目的 50 种，占巴西大西洋森林中出现的有袋动物和小型啮齿动物的 37%。我们的结果表明，在巴拉那州的某些地区，例如西南部，没有任何小型哺乳动物的记录，华莱士缺口约为 138.584 km ². 对巴拉那州小型哺乳动物的研究受到可及性偏差的影响，这些研究集中在距离城市、道路或机场不到 50 公里的地点。新的研究不仅要了解仍然缺乏研究或迄今为止尚未研究的地区的物种丰富度，还要评估在人类密集地区持续存在的物种的状态和种群动态。