Composición florística, estructura y endemismo del componente leñoso en remanentes boscosos en el cantón Palanda, provincia de Zamora Chinchipe, Ecuador
Tropical forests have an extraordinary biodiversity, particularly in south America they are found in countries such as Bolivia, Brazil, Colombia, Guyana, Peru, Suriname, Venezuela and Ecuador. The objective of the research was to determine the floristic composition, structure and endemism of the woo...
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado em: |
2025
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| Assuntos: | |
| Acesso em linha: | https://dspace.unl.edu.ec/jspui/handle/123456789/32158 |
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Adicionar Tag | Resumo: | Tropical forests have an extraordinary biodiversity, particularly in south America they are found in countries such as Bolivia, Brazil, Colombia, Guyana, Peru, Suriname, Venezuela and Ecuador. The objective of the research was to determine the floristic composition, structure and endemism of the woody component in forest remnants of Palanda, province of Zamora Chinchipe. Ten temporary transects of 10 x 50 m were installed; trees ≥ 5 cm in diameter D1.30 m were inventoried; diameter and height were measured; botanical samples were collected for species identification. Floristic composition, Shannon's diversity index, Pielou's evenness index and Sorensen's similarity index, basal area, volume, structural parameters of the forest, and endemic species were determined. A total of 147 species were recorded within 80 genera in 42 families with a total of 681 individuals of trees, shrubs and tree ferns. The most diverse families were: Lauraceae, Moraceae, Fabaceae. The ecologically important species were Ficus sp. 4, Alchornea glandulosa and Casearia arborea. An endemic species Siparuna eggersii was identified. The woody component had a basal area of 16,08 m2 and a volume of 121,17 m3 . The Shannon index had a value of 4,4, showing a high diversity, the Pielou index had a value of 0,67 indicating a medium diversity. The Sorensen similarity index had values between 0 and 0,19, showing the dissimilarity between the sampled transects. The individuals are mostly grouped in the first diameter class forming an inverted “J” that determines that it is a forest in the process of recovery. In the vertical structure, three strata are differentiated, being the majority of species and individuals in the lower stratum with heights between 2,3 m to 10 m. The forest remnants of Palanda have an interesting composition and floristic diversity and its structure is preserved, despite its fragmentation, so it its conservation is necessary. |
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