Composición florística, estructura y endemismo del componente leñoso en una parcela permanente en el bosque siempreverde montano bajo en la parroquia Valladolid, cantón Palanda, provincia de Zamora Chinchipe, Ecuador

Montane forests are extraordinarily biodiverse ecosystems, providing ecosystem goods and services, especially carbon sequestration, water production and biodiversity protection. The most extensive areas of tropical montane forests are found in the Andes Mountain range, from Venezuela to Chile and Argentina. These forests are mainly abundant in Colombia, Ecuador, Peru and Bolivia. The objective of this research was to determine the floristic composition, structure and endemism of the woody component in a permanent plot of low montane evergreen forest in the parish of Valladolid, province of Zamora Chinchipe. A permanent plot of one hectare (10 000 m2), divided into 25 subplots of 20 x 20 m, was installed; trees ≥ 5 cm in diameter D1,30 m were inventoried, and diameter and height were measured. Floristic composition, Shannon diversity index, basal area, volume, forest structural parameters and endemic species were determined. Sixty-four species were recorded within 40 genera in 26 families, with a total of 2,227 individuals in one hectare. The forest had a basal area of 13.04 m2/ha and a volume of 57.49 m3/ha. The Shannon index with a value of 2,71 shows that the forest has a medium diversity and that the species are evenly distributed. Two endemic species Myrsine sodiroana and Stilpnophyllum grandifolium were identified. The greatest number of individuals are grouped in the first two diameter classes, forming an inverted “J” which indicates that it is a young forest in the process of recovery. The ecologically important species are: Alchornea grandiflora, Ilex inundata and Andesanthus lepidotus. The most diverse and abundant families are: Lauraceae, Melastomataceae and Clusiaceae. In the vertical stratum the species that predominate are those of the middle stratum with heights between 3.9 m to 7.8 m. The low montane evergreen forest of Valladolid is very diverse, particularly dense, and despite the surrounding anthropic intervention, it is an interesting sample of this ecosystem that should be preserved.

• Príomhchruthaitheoir: Valencia Ochoa, Evelyn Briggette (author)
• Formáid: bachelorThesis
• Teanga: spa
• Foilsithe / Cruthaithe: 2024
• Ábhair: PARAMETROS ESTRUCTURALES; COMPOSICION FLORISTICA; ESTRUCTURA DIAMETRICA
• Rochtain ar líne: https://dspace.unl.edu.ec/jspui/handle/123456789/30764