Cereus jamacaru DC. and Pilosocereus pachycladus F. Ritter (Cactaceae) in the Northeast region of Brazil: future perspectives and distribution

Thamires Kelly Nunes Carvalho, José Ribamar Farias Lima, Ramon Santos Souza, João Everthon da Silva Ribeiro, Ezequiel da Costa Ferreira, Denise Dias da Cruz, Reinaldo Farias Paiva de Lucena

Resumo


The Caatinga covers 912,529 km² throughout most of the Northeast region of Brazil and accounts for 28.6 million people. This region is characterized by high aridity and long drought periods. In 2013, the International Panel on Climate Change (IPCC) warned that tropical regions, including the semi-arid region of Brazil (mostly covered by Caatinga), will be affected by global climate change. Species of ecological and socio-cultural importance may be impacted by climate change, culminating in a local vulnerability scenario. Our goal was to elaborate maps to predict the future distribution of Cereus jamacaru DC. subsp. jamacaru and Pilosocereus pachycladus F. Ritter subsp. pernambucoensis (F. Ritter) Zappi as a function of climatic changes. The results indicate that C. jamacaru will increase its distribuition in 2050 (in the RCP8.5 scenario) while P. pachycladus will decrease in suitable habitat These findings reaffirm the prediction of desertification in the Caatinga. The interrelationship between man and the studied species, as plant resources, should also be considered to evaluate the social impact and vulnerability conditions of populations that depend on plant resources.

 


Palavras-chave


Climate change; Cactaceae; Semi-arid Brazil; Caatinga.



DOI: https://doi.org/10.26848/rbgf.v13.6.p%25p

Licença Creative Commons
Esta obra está licenciada sob uma licença Creative Commons Atribuição 4.0 Internacional.

      

Revista Brasileira de Geografia Física - ISSN: 1984-2295

Creative Commons License
Esta obra está licenciada com uma Licença Creative Commons Attribution-NonCommercial 4.0 International License