| Autor: |
Do Carmo Barbosa, Morgana Maria, Ferreira Pinto Machado, Anderson, Almeida Dos Santos, Andrea Karla, De Sá-Neto, Raymundo José, Martins Corrêa, Michele |
| Předmět: |
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| Zdroj: |
Journal of Mountain Science; Jun2023, Vol. 20 Issue 6, p1526-1539, 14p |
| Abstrakt: |
The municipality of Boa Nova, in northeastern Brazil, is in an ecotone zone between the Caatinga and Atlantic Forest phytogeographic domains. The transition phytophysiognomy is seasonal forest and known locally as mata de cipó. In these phytophysiognomies there are lajedos, which are rock outcrops colonized by vegetation well-adapted to extreme microclimatic variation and vegetation diversity is affected by the vegetation types of the surrounding areas. Due to the singularity of these environments and the relevance of floristic studies for conservation, this work aimed to identify the species richness and compare the similarity of the flora on four rock outcrops in Boa Nova. The flora was surveyed during exploratory walks along lajedos between 2016 and 2019. In total, 162 species were identified on the Boa Nova outcrops. The flora has a composition and structure similar to semiarid outcrops, as well as endemic species that also occur in surrounding phytophysiomies. Despite the proximity, a similarity index revealed there is floristic dissimilarity between the areas. Nine new occurrences were recorded for the region, five species are threatened with extinction (Aosa gilgiana, Ficus cyclophylla, Hippeastrum stigmovittatum, Pleroma caatingae and Trixis pruskii), and 43 species are common in anthropogenic areas. This reinforces the importance of actions to conserve these areas. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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