PATRÓN ESPACIAL DE LA REGENERACIÓN DE Aspidosperma polyneuron 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

doi:10.5902/19805098878

RESUMEN

Se analizó el patrón espacial de la regeneración de Aspidosperma polyneuron 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.

Palabras clave:
distribución; renovales; Apocynaceae; o estadistico; selva subtropical

ABSTRACT

The spatial pattern of regeneration of Aspidosperma polyneuron 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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BIBLIOGRAFÍA

BAROT, S.; GIGNOUX, J.; MENAUT, J.C. Demography of a savanna palm tree : predictions from comprehensive spatial pattern analyses. Ecology, v. 80, p. 1987-2005, 1999.
BATISTA, J.L.F.; MAGUIRE, D.A. Modeling spatial structure of tropical forest. Forest Ecology and Management, v.110, p. 293-314, 1998.
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CAMPANELLO, P. et al. Lianas in a subtropical Atlantic Forest: Host preference a tree growth. Forest Ecology and Management, v. 242, p. 250-259, 2007.
CANNON, C. H. et al. The structure of lowland rainforest after selective logging in West Kalimantan, Indonesia. Forest Ecology and Management , v. 67, p 49-68, 1994.
CARVALHO, P. E. R. Espécies florestais brasileiras: recomendações silviculturais, potencialidades e uso da madeira. Colombo: EMBRAPA - CNPF, Brasília: EMBRAPA - SPI, 1994. 640 p.
CONDIT, R. et al. Spatial pattern in the distribution of tropical tree species. Science, v.288, p. 1414-1418, 2000.
CONNELL, J.H. On the role of natural enemies in preventing competitive exclusion in some marine animals and rain forest trees. EN: DEN BOER, P.J.; GRADWELL, E. (ed.) Dinamics of Populations. Wageningn: Prod., 1971. p. 298-312.
DALE, M.R.T. et al. Conceptual and mathematical relationships among methods for spatial analysis. Ecography, v.25, p. 558-577, 2002.
DIGGLE, P.J. Statistical analysis of spatial point patterns. London: Academic Press, 1983. 148 p.
DIGGLE, P.J. Statistical analysis of spatial point patterns . 2. ed. London: Arnold Ed. 2003. 168 p.
FONSECA, M.G.; MARTINI, A.M; DOS SANTOS, F.A. Spatial structure of Aspidosperma polyneuron in two semi-deciduous forests in Southeast Brazil. Journal of Vegetation Science , v.15, p.41-48, 2004.
FORTIN, M.J.; DALE, M. Spatial Analysis. A guide for Ecologists. Cambride: Cambridge University Press. 2005. 365 p.
GOREAUD, F.; COURBAUD, B.; COLLINET, F. Spatial structure analysis applied to modelling of forests dynamics: a few examples. En: IUFRO. Proceedings of the Workshop: Empirical And Process Based Models For Forest Tree And Stand Growth Simulation. 1999. p. 155-172.
HUBBELL, S.P. Seed predation and the coexistence of tree species in tropical forests. Oikos, v. 35, p. 214-229, 1980.
JANZEN, D.H. Herbivores and the number of tree species in tropical forest. The American Naturalist, v.104, p. 501-528, 1970.
MARTINS, S. V.; RODRIGUES, R. R. Gap-phase regeneration in a semideciduos mesophytic forest, southeastern Brazil. Plant Ecology , v.163, p.51-62, 2002.
NATHAN, R.; MULLER-LANDAU, H.C. Spatial pattern of seed dispersal, their determinants and consequences for recruitment. Trends in Ecology and Evolution, v.15, p. 277-285, 2000.
PERRY, J.N. et al. Illustrations and guidelines for selecting statistical methods for quantifying spatial pattern in ecological data. Ecography , v.25, p. 578-600, 2002.
RIPLEY, B.D. Spatial Statistics. New York: John Wiley and Sons. 1981. 253 p.
SEIDLER, T.G.; PLOTKIN, J.B. Seed dispersal and spatial pattern in tropical trees. Plos Biology, v. 4, n.11, p. 2132-2137, 2006.
STOYAN, D.; STOYAN, H. Fractals, random shapes and point fields: methods of geometrical statistics. Wiley: Chichester, 1994. 406 p.
WIEGAND, T.; MOLONEY, K.A. Rings, circles, and null models for point pattern analysis in ecology. Oikos , v.104, p. 209-229, 2004.
WIEGAND, T.; GUNATILLEKE, S.; GUNATILLEKE, N. Species associations in a heterogeneous Sri Lankan Dipterocarp forest. The American Naturalist , v.170, n.4, p.77-95, 2007.
WRIGHT, S.J. et al. Annual and spatial variation in seedfall a seedling recruitment in a neotropical forest. Ecology , v. 86, n.4, p. 848-860, 2005.

Fechas de Publicación

Publicación en esta colección
Jul-Sep 2009

Histórico

Recibido
07 Feb 2008
Acepto
15 Mayo 2009

Este es un artículo publicado en acceso abierto bajo una licencia Creative Commons

[1] BAROT, S.; GIGNOUX, J.; MENAUT, J.C. Demography of a savanna palm tree : predictions from comprehensive spatial pattern analyses. Ecology, v. 80, p. 1987-2005, 1999.

[2] BATISTA, J.L.F.; MAGUIRE, D.A. Modeling spatial structure of tropical forest. Forest Ecology and Management, v.110, p. 293-314, 1998.

[3] BERNACCI, F.C.; LEITÃO-FILHO, H.F. Flora fanerogâmica da floresta da fazenda São Vicente, Campinas, SP. Revista Brasileira Botânica, v.19, p.149-164, 1996.

[4] CAMPANELLO, P.; MONTI, L.; GATTI, G.; GOLDSTEIN, G. Efecto de la tala selectiva sobre la estructura y funcionamiento del bosque nativo en Misiones: Desarrollo de técnicas de manejo forestal sustentable. En: CONGRESO FORESTAL ARGENTINO Y LATINOAMERICANO, 3., 2005, Corrientes. Anales … Corrientes. Argentina: 2005. 10 p.

[5] CAMPANELLO, P. et al. Lianas in a subtropical Atlantic Forest: Host preference a tree growth. Forest Ecology and Management, v. 242, p. 250-259, 2007.

[6] CANNON, C. H. et al. The structure of lowland rainforest after selective logging in West Kalimantan, Indonesia. Forest Ecology and Management , v. 67, p 49-68, 1994.

[7] CARVALHO, P. E. R. Espécies florestais brasileiras: recomendações silviculturais, potencialidades e uso da madeira. Colombo: EMBRAPA - CNPF, Brasília: EMBRAPA - SPI, 1994. 640 p.

[8] CONDIT, R. et al. Spatial pattern in the distribution of tropical tree species. Science, v.288, p. 1414-1418, 2000.

[9] CONNELL, J.H. On the role of natural enemies in preventing competitive exclusion in some marine animals and rain forest trees. EN: DEN BOER, P.J.; GRADWELL, E. (ed.) Dinamics of Populations. Wageningn: Prod., 1971. p. 298-312.

[10] DALE, M.R.T. et al. Conceptual and mathematical relationships among methods for spatial analysis. Ecography, v.25, p. 558-577, 2002.

[11] DIGGLE, P.J. Statistical analysis of spatial point patterns. London: Academic Press, 1983. 148 p.

[12] DIGGLE, P.J. Statistical analysis of spatial point patterns . 2. ed. London: Arnold Ed. 2003. 168 p.

[13] FONSECA, M.G.; MARTINI, A.M; DOS SANTOS, F.A. Spatial structure of Aspidosperma polyneuron in two semi-deciduous forests in Southeast Brazil. Journal of Vegetation Science , v.15, p.41-48, 2004.

[14] FORTIN, M.J.; DALE, M. Spatial Analysis. A guide for Ecologists. Cambride: Cambridge University Press. 2005. 365 p.

[15] GOREAUD, F.; COURBAUD, B.; COLLINET, F. Spatial structure analysis applied to modelling of forests dynamics: a few examples. En: IUFRO. Proceedings of the Workshop: Empirical And Process Based Models For Forest Tree And Stand Growth Simulation. 1999. p. 155-172.

[16] HUBBELL, S.P. Seed predation and the coexistence of tree species in tropical forests. Oikos, v. 35, p. 214-229, 1980.

[17] JANZEN, D.H. Herbivores and the number of tree species in tropical forest. The American Naturalist, v.104, p. 501-528, 1970.

[18] MARTINS, S. V.; RODRIGUES, R. R. Gap-phase regeneration in a semideciduos mesophytic forest, southeastern Brazil. Plant Ecology , v.163, p.51-62, 2002.

[19] NATHAN, R.; MULLER-LANDAU, H.C. Spatial pattern of seed dispersal, their determinants and consequences for recruitment. Trends in Ecology and Evolution, v.15, p. 277-285, 2000.

[20] PERRY, J.N. et al. Illustrations and guidelines for selecting statistical methods for quantifying spatial pattern in ecological data. Ecography , v.25, p. 578-600, 2002.

[21] RIPLEY, B.D. Spatial Statistics. New York: John Wiley and Sons. 1981. 253 p.

[22] SEIDLER, T.G.; PLOTKIN, J.B. Seed dispersal and spatial pattern in tropical trees. Plos Biology, v. 4, n.11, p. 2132-2137, 2006.

[23] STOYAN, D.; STOYAN, H. Fractals, random shapes and point fields: methods of geometrical statistics. Wiley: Chichester, 1994. 406 p.

[24] WIEGAND, T.; MOLONEY, K.A. Rings, circles, and null models for point pattern analysis in ecology. Oikos , v.104, p. 209-229, 2004.

[25] WIEGAND, T.; GUNATILLEKE, S.; GUNATILLEKE, N. Species associations in a heterogeneous Sri Lankan Dipterocarp forest. The American Naturalist , v.170, n.4, p.77-95, 2007.

[26] WRIGHT, S.J. et al. Annual and spatial variation in seedfall a seedling recruitment in a neotropical forest. Ecology , v. 86, n.4, p. 848-860, 2005.

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