ABSTRACT In Brazil, the Caatinga ecoregion is the only biome that lies completely within the country, covering approximately 11% of the national territory. This biome exhibits a strong climatic seasonality that may affect the activity of its fauna. We aimed to assess the effects of seasonality on scorpion foraging activity in an area of hypoxerophytic Caatinga, located in the municipality of Caetés, Pernambuco. Scorpions were collected through active nocturnal searching using ultraviolet flashlights during the rainy (May, June, and July) and dry (September, October, and November) seasons in 2017. A total of 96 specimens were collected, belonging to the Buthidae and Bothriuridae families, comprising seven species, Ananteris sp., Tityus pusillus, T. stigmurus, T. neglectus, Jaguajir rochae, Bothriurus asper, and B. rochai. No differences in foraging activity (rainy season, n = 47; dry season, n = 49) were found between rainy and dry seasons. These findings indicate that the studied area has a high scorpion richness, emphasizing the importance of conserving the area, as these animals are sensitive to habitat changes. In addition, the lack of variation between seasons found in this work may reflect the ecotonal nature of hypoxerophytic Caatinga.

中文翻译：

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季节性对巴西季节性热带干燥森林残余物中蝎类（蛛形纲：蝎子）觅食活动的影响

摘要 在巴西，卡廷加生态区是唯一完全位于巴西境内的生物群落，覆盖了约 11% 的国家领土。该生物群落表现出强烈的气候季节性，可能会影响其动物群的活动。我们旨在评估季节性对位于伯南布哥 Caetés 市缺氧植物 Caatinga 地区的蝎子觅食活动的影响。在 2017 年雨季（5 月、6 月和 7 月）和旱季（9 月、10 月和 11 月）期间，通过使用紫外线手电筒主动夜间搜索收集蝎子。共收集了 96 份标本，分别属于蝎科和蛇蝎科，包括七个物种，Ananteris sp.、Tityus pusillus、T. stigmurus、T. ignoreus、Jaguajir rochae、Bothriurus asper 和 B. rochai。在雨季和旱季之间没有发现觅食活动（雨季，n = 47；旱季，n = 49）的差异。这些发现表明，研究区域的蝎子丰富度很高，强调了保护该区域的重要性，因为这些动物对栖息地的变化很敏感。此外，在这项工作中发现的季节之间没有变化可能反映了缺氧植物卡廷加的生态系统性质。