Anurans of Sete Cidades National Park, Piauí state, northeastern Brazil

Abstract The Sete Cidades National Park is located in the Brazilian municipalities of Piracuruca and Brasileira, Piauí state, in a transitional zone between the Caatinga and Cerrado biomes. Studies on its herpetofauna were limited to anuran distribution notes and a snake checklist. Thus, here we present an unpublished species list of anurans from Sete Cidades National Park, Piauí state, northeastern Brazil. We recorded one of the two highest species richness for all northeastern National Parks, and also increased the geographic distribution of one species in the state of Piauí. Most species observed are common of both Caatinga and Cerrado biomes or have wide distribution in Brazil. The anuran assemblage of Sete Cidades National Park is more similar to those registered at the Delta do Parnaíba Environmental Protection Area, Ceará, Piauí and Maranhão states, and Ubajara National Park, Ceará state. These results increase our knowledge on anuran diversity in northeastern Brazil, providing basic information for management and conservation actions of an important Brazilian National Park.

摘要 塞特西达迪斯国家公园（Sete Cidades National Park）坐落于巴西皮奥伊州（Piauí）的皮拉库里卡（Piracuruca）与布拉西莱拉（Brasileira）两市，地处卡廷加生物群系（Caatinga）与塞拉多生物群系（Cerrado）之间的过渡地带。此前针对该区域两栖爬行动物区系（herpetofauna）的研究仅局限于无尾目（anuran）分布记录与蛇类名录（snake checklist）。为此，本文公布巴西东北部皮奥伊州塞特西达迪斯国家公园的无尾目未发表物种名录。本次调查记录的物种丰富度位列巴西东北部所有国家公园前两位，同时拓展了皮奥伊州内1个物种的地理分布范围。本次观测到的多数物种常见于卡廷加与塞拉多生物群系，或在巴西境内拥有广泛分布。塞特西达迪斯国家公园的无尾类群落（anuran assemblage）与帕纳伊巴三角洲环境保护区（Delta do Parnaíba Environmental Protection Area，横跨塞阿拉州（Ceará）、皮奥伊州与马拉尼昂州（Maranhão））以及塞阿拉州乌巴雅拉国家公园（Ubajara National Park）所记录的群落相似度较高。本研究加深了学界对巴西东北部无尾目两栖动物多样性的认知，可为这座重要巴西国家公园的管理与保护行动提供基础信息支撑。