POPULATION STRUCTURE OF Myrocarpus frondosus Allemão IN A RIPARIAN AREA OF THE PARANAENSE FOREST IN MISIONES, ARGENTINA
DOI:
https://doi.org/10.5902/198050982056Keywords:
size structure, spatial distribution, species conservationAbstract
In order to describe the population structure of Myrocarpus frondosus Allemão, the structure of size class and the spatial distribution of the individual species was studied, in a riparian area of the Paranaense Forest in Misiones, Argentina, at 27º39'00" S and 55º44'30" W. The species was studied in circular plots. All the individuals of Myrocarpus frondosus with diameter greater or equal to 10 cm (at 1.3 m height - DBH) were considered for the tree stage, and all seedlings with diameter ranging from 2 cm to 9.9 cm were considered for natural regeneration. Three hundred and ninety six individuals were found (431 ind. ha-1), with 180 individuals in the tree stage and 216 individuals in the natural regeneration stage. The results show that the diameter size of the population varied from 2 cm to 50 cm with reverse J distribution, representing a substantial recruitment in the younger age classes. The species presented a clustered pattern of spatial distribution.
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ARISTA, M. The structure and dynamics of an Abies pinsapo forest in southern Spain. Forest Ecology and Management, Amsterdam, v. 74, n. 1-3, p. 81-89, June 1995.
BROKAW, N. V. L. Treefalls, regrowth, and community structure in tropical forests. In: PICKETT, S.T.A.; WHITE, P.S. (Eds.). The ecology of natural disturbance and patch dynamics. New York: Academic Press, 1985. Cap. 4, p. 31-49.
CABRERA, A. Regiones fitogeográficas Argentinas: enciclopedia argentina de agricultura y jardinería. 2. ed. Buenos Aires: Acme, 1994. 85 p. t.2.
CARNEVALI, R. Fitogeografía de la Provincia de Corrientes. Corrientes: Gobierno de la Provincia de Corrientes e Instituto Nacional de Tecnología Agropecuaria (INTA), 1994. 324 p.
CONDIT, R. Research in large, long-term tropical forest plots. Trends in Ecology and Evolution, Amsterdam, v.10, n.1, p. 18-22, Jan.1995.
CHEBEZ, J. C. Los que se van: especies argentinas en peligro. 1. ed. Buenos Aires: Albatros, 1994. 606 p.
DIMITRI, M. J. El nuevo libro del árbol: especies forestales de la Argentina oriental. 3. ed. Buenos Aires: El Ateneo, 2000. 124 p. t. 2.
EBY – Entidad Binacional Yacyretá. Estudio hidrológico topográfico y geotécnico del área de Posadas Garupá y Encarnación. Informe Preliminar de Diagnóstico. 1998.
FORGET, P. M. Regeneration ecology of Eperua grandiflora (Caesalpiniaceae), a large-seeded tree in French Guiana. Biotropica, Oxford, v. 24, n. 2, p. 146-156, 1992.
GARELLO, A. Misiones y su Naturaleza. Ley nº 2932- Áreas naturales protegidas - Decreto nº 944. Ministerio de Ecología y Recursos Naturales Renovables. 1998.
IGM – Instituto Geográfico Militar. Cartas Topográficas del Instituto Geográfico Militar Argentino. Escala 1:50000. 1938.
KÖPPEN, W. Las zonas del clima. In: Climatología. México: Fondo de Cultura Económica, 1948. 63 p.
LORENZI, H. Árvores brasileiras: manual de cultivo de plantas arbóreas nativas do Brasil. Nova Odessa: Plantarum, 1998. v. 1.
MARTINEZ CROVETTO, R. Fitogeografía de Misiones. Bonplandia, Corrientes, v.1, n. 3, 171-223, 1963.
MARTINEZ-RAMOS, M. Claros, ciclos vitales de los arboles tropicales y regeneración natural de selvas altas perennifolias. In: GOMES-POMPA, A.; DEL AMO, S. (Eds.). Investigaciones sobre la regeneración de selvas altas en Veracruz, México. México: DF Alhambra, 1985. p. 191-240.
MARTINEZ-RAMOS, M.; ALVAREZ-BUYLLA, E. R. Ecología de poblaciones de plantas en una selva húmeda de México. Boletín de la Sociedad de Botánica de México, México, v. 56, p. 121-153, 1995.
MARTINS, S. S. et al. Efeito da exploração florestal seletiva em uma floresta estacional semidecidual. Revista Árvore, Viçosa, v. 27, n.1, p. 65-70, jan./fev. 2003.
MORISITA, M. Measuring of the dispersion of individuals and analysis of the distributional patterns. Mem. Fac. Science, Kyushu, v. 2, n. 4, p. 215-235, 1959.
ODUM, E. P. Fundamentos de ecologia. 4. ed. Lisboa: Fundação Colouste Gulbenkian, 1972. 927 p.
REITZ, R.; KLEIN, R. M.; REIS, A. Projeto madeira do Rio Grande do Sul. Porto Alegre: Sudesul, 1988. 525 p.
VAN GROENENDAEL, J. M.; BULLOCK, S. H.; PÉREZ-JIMÉNEZ, L. A. Aspects of the population biology of the gregarious tree Cordia elaegnoides in mexican tropical deciduous forest. Journal of Tropical Ecology, Cambridge, v. 12, n.1, p.11-24, Jan. 1996.
VIANA, V. M.; TABANEZ, A. J. A.; MARTINEZ, J .L. A. Restauração e manejo de fragmentos florestais. In: CONGRESSO NACIONAL SOBRE ESSÊNCIAS NATIVAS, 2., 1992, São Paulo. Anais ... São Paulo: Instituto Florestal, 1992. v. 4, p. 400-406.
WEBB, L. S.; TRACEY, J. G.; WILLINS, W. T. Regeneration and pattern in the subtropical rain forest. Journal of Ecology, London, v. 60, n.3, p. 675-695, Nov. 1972.
