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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 19, No. 3, 2009, pp. 237-245
Bioline Code: cf09023
Full paper language: Portuguese
Document type: Research Article
Document available free of charge

Ciência Florestal, Vol. 19, No. 3, 2009, pp. 237-245

 pt Patrón espacial de la regeneración de Aspidosperma polyneuron check for this species in other resources Müll. Arg. en un bosque sometido a aprovechamiento selectivo en el norte de la provincia de Misiones
Pinazo, Martín; Moscovich, Fabio; Dummel, Caludio & Knebel, Otto

Resumo

Se analizó el patrón espacial de la regeneración de Aspidosperma polyneuron check for this species in other resources Müll.Arg. en un sector remanente de la selva Paranaense en la provincia de Misiones, Argentina. Se mapearon los individuos presentes en un área de 210 m x 100 m (2,1 ha). Se aplicaron técnicas de análisis de patrones de puntos univariados y bivariados mediante el índice "O" de Wiegand & Moloney. La regeneración presentó agrupamientos a escalas de hasta 10 metros resultando en conglomerados de 30 metros de diámetro. No se verificaron asociaciones entre la regeneración y los individuos mayores de la especie ni con los árboles muertos, mientras que se observaron asociaciones a pequeña escala con individuos de otras especies. Los resultados permiten concluir que la regeneración presenta patrones agregados que tienden a la homogeneidad en los adultos. La presencia de renovales está condicionada a la presencia de adultos en las cercanías y la instalación de la regeneración está asociada a individuos de más de 10 cm de diámetro al pecho siendo la regeneración en sitios abierto una excepción.

Palavras-chave
distribución; renovales; Apocynaceae; o estadistico; selva subtropical

 
 en Spatial pattern of regeneration of Aspidosperma polyneuron check for this species in other resources Müll. Arg. in a remnant sector submitted to selective use in the north of Misiones province
Pinazo, Martín; Moscovich, Fabio; Dummel, Caludio & Knebel, Otto

Abstract

The spatial pattern of regeneration of Aspidosperma polyneuron check for this species in other resources Müll.Arg. was studied in a remnant sector of the Paranaense forest in the Misiones province, Argentina. All individuals were mapped in a 210 m x 100 m area (2,1 ha). Univariate and bivariate point pattern analyses were used by means of Wiegand and Moloney O ring index. Regeneration showed clumped pattern to scales up to10 m and clusters of 30 m of diameter. No association was found between regeneration and both adult trees of A. polyneuron and standing death trees, whereas a small scale relationship between regeneration and adult trees of all species was observed. These results revealed that the regeneration of Aspidosperma polyneuron is strongly restricted to the presence of conspecific adult trees. On the other hand, the recruitments are associated with individuals from different species with DBH > 10 cm and infrequent in open sites.

Keywords
distribution; saplings; Apocynaceae; o statistic; subtropical forest.

 
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Alternative site location: http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/index

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