Tree structure of the secondary forest at the Pindo Mirador Biological Station, Pastaza, Ecuador

• Autores: Paredes Ulloa, Christopher O.; niversidad de Pinar del Río, calle Martí final, ciudad de Pinar del Río, Ferro Díaz, Jorge; Centro de Investigaciones y Servicios Ambientales ECOVIDA, Departamento Investigaciones, Ministerio de Ciencia, Tecnología y Medio Ambiente, km 2.5 carretera a Luis Lazo, ciudad Pinar del Río, Lozano Carpio, Pablo; Universidad Estatal Amazónica, Centro de Investigación y Postgrado para la Conservación Amazónica, Puyo, provincia Pastaza
• Formato: artículo
• Fecha de Publicación: 2020
• Institución: Universidad Privada Antenor Orrego
• Repositorio: Revista UPAO - Arnaldoa
• Lenguaje: español
• OAI Identifier: oai:oai:journal.upao.edu.pe:article/1560
• Enlace del recurso: http://journal.upao.edu.pe/Arnaldoa/article/view/1560
• Nivel de acceso: acceso abierto
• Materia: piedmont evergreen forest; dasometry; horizontal structure; vertical structure; diversity indexes; species importance value index; bosque siempreverde piemontano; dasometría; estructura horizontal; estructura vertical; índices de diversidad; Índice de Valor de Importancia de especies

The evergreen piedmont forests of the Biological Station Pindo Mirador, province of Pastaza, Ecuador, have been poorly studied, proposing with the research, to characterize the tree structure of the secondary piedmont evergreen forest in a sector of the forest area of the Station, providing information for the protection actions that are developed. Four plots of 0,1 ha were established covering a sampling area of 0,4 ha; all trees with D1.30 from the soil ≥ 10 cm were measured, determining their absolute height, and four diametric classes and similar number of height ranges were established with the records. Species and plot abundances, diametric classes and height ranges were analyzed to extract their descriptive statistics, and by non-parametric comparisons to establish differences between them. The contribution of species to the forest structure was assessed by determining Structural Diversity Indexes, including the Importance Value Index (IVI) for each. The results show a richness of 49 species belonging to 36 genera of 27 families, where trees with diameters between 10 and 20 cm and heights between 8 and 20 m predominate. It is concluded that it is a heterogeneous forest typical of the Andean-Amazon transition, of low species richness, whose vertical structure of the dominant flight is of the medium floor or subcanopy, medium dense, dominated by the species oblong Hyeronima oblonga and Piptocoma discolor, which have the biggest influence on the forest structure.