Prediction of the natural distribution and conservation of Urena lobata L. in Brazil
ABSTRACT Urena lobata L. is a commercial species used for fiber extraction in the Brazilian states of Amazonas and Pará that presents relevant socioeconomic importance for the Amazon region. Despite its importance and wide distribution throughout Brazil, there are no data on the species response to...
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Veröffentlicht in: | Pesquisa agropecuária tropical 2022, Vol.52, p.e72594 |
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Zusammenfassung: | ABSTRACT Urena lobata L. is a commercial species used for fiber extraction in the Brazilian states of Amazonas and Pará that presents relevant socioeconomic importance for the Amazon region. Despite its importance and wide distribution throughout Brazil, there are no data on the species response to global climate change. This study aimed to present the potential geographical distribution of U. lobata in the current period (2009-2019) and predict areas of climatic suitability for its occurrence in two future scenarios (RCP 4.5 and RCP 8.5), at two time intervals (2020-2050 and 2051-2070), in the face of global climate change. A total of 19 bioclimatic variables were obtained from the WorldClim database and four algorithms (Climate Space Model, Envelope Score, Niche Mosaic and Environmental Distance), from which the Envelope Score was the most representative model for the species to verify its occurrence along the Brazilian phytogeographic domains (Amazon, Caatinga, Cerrado, Pantanal, Atlantic Forest and Pampa). Vulnerability was observed for the species, since there were losses of favorable areas in the Amazon, Pantanal, Atlantic Forest, Cerrado and Caatinga, becoming practically extinct in the worst scenario (RCP 8.5), in the year 2070. However, for this same scenario and year, there was a significant area increase in the Pampa.
RESUMO Urena lobata L. é uma espécie comercial, utilizada para a extração de fibras nos estados do Amazonas e Pará, que apresenta relevante importância socioeconômica para a região Amazônica. Apesar de sua importância e vasta distribuição pelo Brasil, não existem dados sobre a resposta da espécie às mudanças climáticas globais. Objetivou-se apresentar a distribuição geográfica potencial de U. lobata no período atual (2009-2019) e prever áreas de adequabilidade climática para sua ocorrência em dois cenários futuros (RCP 4.5 e RCP 8.5), em dois intervalos de tempo (2020-2050 e 2051-2070), diante das mudanças climáticas globais. Foram utilizadas 19 variáveis bioclimáticas obtidas do WorldClim e quatro algoritmos (Climate Space Model, Envelope Score, Niche Mosaic e Environmental Distance), dos quais o Envelope Score foi o modelo mais representativo para a espécie, para verificar sua ocorrência ao longo dos domínios fitogeográficos brasileiros (Amazônia, Caatinga, Cerrado, Pantanal, Mata Atlântica e Pampa). Observou-se vulnerabilidade para a espécie, já que houve perdas de áreas favoráveis na Amazônia, Pantanal, Mata Atlântica, Cerrado |
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ISSN: | 1517-6398 1983-4063 1983-4063 |
DOI: | 10.1590/1983-40632022v5272594 |