Abstract
Sete Cidades National Park is located in northeastern Piauí State, Brazil, and comprises several vegetation types characteristic of the Brazilian Cerrado. This study contributes to understanding the composition and distribution of Brazilian bryoflora and provides a list of bryophytes of Sete Cidades National Park. A total of 520 samples representing 90 species were collected, of which 53 represent new occurrences for Piauí, 25 for the Cerrado and four for the Northeast Region of Brazil. About 55% of the species have broad distributions in the country. This study highlights the relevance of Sete Cidades National Park for the conservation of species and the importance of continued bryofloristic studies in Piauí.
Highlights
The conservation of biodiversity represents one of the major challenges facing today’s society due to the high level of anthropic disturbances of natural ecosystems (Viana and Pinheiro 1998)
Sete Cidades National Park is located in northeastern Piauí State, Brazil, and comprises several vegetation types characteristic of the Brazilian Cerrado
We identified the samples and incorporated them into the Herbarium da Universidade Estadual do Piauí (HUESPI), Campus Heróis do Jenipapo
Summary
The conservation of biodiversity represents one of the major challenges facing today’s society due to the high level of anthropic disturbances of natural ecosystems (Viana and Pinheiro 1998). The state of Piauí is in an area of ecological tension with transitional or ecotonal vegetation (IBGE 1992) being influenced by three phytogeographical domains— Amazon Forest, Cerrado, and Caatinga (Rizzini 1963; Andrade 1968)—along with transitional areas of Forest/Cerrado and Caatinga/Cerrado (CODEVASF 2006). These conditions are reflected in spatial heterogeneity that provides a great variety of microhabitats for the establishment of bryophytes. The first record of bryophytes for the state was that of Lützelburg (1922), who cited 11 species of mosses belonging to five families. This was followed by the work of Castro et al (2002), who recorded 22 species of mosses for Sete Cidades National Park, and Yano et al (2009), Check List 16 (4)
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