Structure of a Prosopis juliflora (Sw.) DC. Population established in a temporary riverbed in the Microregion of Cariri in the State of Paraiba

Autores

  • Lamartine Soares Bezerra de Oliveira Universidade de Brasília
  • Leonaldo Alves de Andrade Universidade Federal da Paraíba
  • Juliano Ricardo Fabricante Centro de Referência para a Recuperação de Áreas Degradas
  • Gerlândio Suassuna Gonçalves Universidade Federal da Amazônia

DOI:

https://doi.org/10.5433/1679-0359.2012v33n5p1769

Palavras-chave:

Caatinga, Population structure, Mesquite.

Resumo

The aim of this study was to evaluate the structure of a Prosopis juliflora population established in Serra Branca riverbed, in the Municipality of São João do Cariri, Paraíba . Nineteen months after the most recent flooding of the riverbed, 30 equally spaced transects were set up at a distance of 25 m apart from each other. Along the transects, 191 quadrant points were plotted (all at 5 m distance both from the river and from adjacent points), and 764 individuals of P. juliflora were sampled. The individuals that were closer to the intersection center of each quadrant point were surveyed, with measurements taken of the distance between them and to the point, their diameter at ground level (DGL), and total height. An average distance of 2.04 m was recorded between individuals (estimated density of 2,403 individuals ha-1), with the diameter ranging from 0.12 to 8.27 cm, and plant height from 0.01 to 3.0 m. The population of P. juliflora was composed predominantly of regenerating individuals, providing evidence that the occupation of the area by this invasive species was still in the early and middle stages of establishment. The results, in particular the rapid growth in diameter and height of young individuals, emphasized the ability of P. juliflora to occupy new niches, which ensures its competitive advantage in relation to native species.

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Biografia do Autor

Lamartine Soares Bezerra de Oliveira, Universidade de Brasília

Doutorando em Ciências Florestais, Faculdade de Tecnologia, Universidade de Brasília, Brasília, DF.

Leonaldo Alves de Andrade, Universidade Federal da Paraíba

Prof. Associado do Deptº de Fitotecnia, Centro de Ciência Agrárias, Universidade Federal da Paraíba, Laboratório de Ecologia Vegetal, Areia, PB.


Juliano Ricardo Fabricante, Centro de Referência para a Recuperação de Áreas Degradas

Dr. em Agronomia, Biólogo do Centro de Referência para a Recuperação de Áreas Degradas, CRAD, UNIVASF, Petrolina, PE.

Gerlândio Suassuna Gonçalves, Universidade Federal da Amazônia

Doutorando em Agronomia Tropical, Universidade Federal da Amazônia, Manaus, AM.

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Publicado

2012-10-30

Como Citar

Oliveira, L. S. B. de, Andrade, L. A. de, Fabricante, J. R., & Gonçalves, G. S. (2012). Structure of a Prosopis juliflora (Sw.) DC. Population established in a temporary riverbed in the Microregion of Cariri in the State of Paraiba. Semina: Ciências Agrárias, 33(5), 1769–1778. https://doi.org/10.5433/1679-0359.2012v33n5p1769

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