Floristic Composition and Structure of a Montane Evergreen Forest at 600- 700 m AMSL in the Piatúa River Basin, Napo, Ecuador

An ecological structural floristic study was carried out in five permanent transects in montane in the Piatúa River basin between 600 and 700 m.a.s.l. There were identified 32 families and 68 species in 288 tree subjects with a recorded DAP ≥ 10 cm. The most diverse families were: Arecaceae, Fabacea...

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Bibliographic Details
Authors: Patino Uyaguari, Javier, Lozano Carpio, Pablo Enrique, Tipán, Cristian, Navarrete Alvarado, Henrry Ubaldo, Lopez Aguirre, Marlon Rolando, Asanza Novillo, Gricelda Mercedes, Torres Navarrete, Segundo Bolier
Format: article
Status:Published version
Publication Date:2015
Country:Ecuador
Institution:Universidad Estatal Amazónica
Repository:Revista Amazónica. Ciencia y Tecnología
Language:Spanish
OAI Identifier:oai:ojs_revista.www.uea.edu.ec:article/52
Online Access:https://revistas.uea.edu.ec/index.php/racyt/article/view/52
Access Level:Open access
Keyword:Diversidad florística
ecología
estructura de bosque
Amazonía ecuatoriana
Floristic Diversity, ecology
forest structure
Ecuadorean Amazon
Description
Summary:An ecological structural floristic study was carried out in five permanent transects in montane in the Piatúa River basin between 600 and 700 m.a.s.l. There were identified 32 families and 68 species in 288 tree subjects with a recorded DAP ≥ 10 cm. The most diverse families were: Arecaceae, Fabaceae and Moraceae with 5 species (7.14 %); followed by Lauraceae and Urticaceae with 4 species (5.71 %); Euphorbiaceae, Myristicaceae, and Vochysiaceae with 3 species (4.29 %). Results show similarities in families from the measured transects where predominate the Arecaceae 17.64%; followed by the Lauraceae, 14.62%; Vochysiaceae 9.80%;  Myristicaceae 8.75%, Sterculiaceae 8.21%, and lastly families Hypericaceae 0.10%, Rutaceae 0.10%, and Nyctaginaceae con 0.09%. The most diverse families were, according to Sorensen’s index, transects 2 – 3 and 3 – 5, which are in Rank III with more than 50% similarity. Shannon’s index (3.52) and Simpson’s (0.94) show the presence of a medium-high floristic composition characteristic of foothills ecosystems.

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