EVALUACIÓN DE LAS ESPECIES DEL MANGLAR ESTABLECIDAS EN EL PARQUE HISTÓRICO GUAYAQUIL, (2017)

Abstract

The Guayaquil Historical Park recreates ecosystems of the Ecuadorian coast. In 2000 the Ecological Foundation Jambelí Rescate established the mangrove zonation with five species: Rhizophora mangle, Rhizophora x harrisonii, Laguncularia racemosa, Avicennia germinans and Conocarpus erectus; they marked with aluminum plates 296 original mangles (found in the site). The reduction in the number of individuals was evidenced in 2014 with a record of 154 Rhizophora spp with plaque and the loss of more than 95% of Laguncularia racemosa and Avecennia germinans. Therefore, the objectives of this study were: (1) To determine the parameters of the original mangles labeled with aluminum plates since 2000; (2) to identify a sample of mangrove populations planted in the period 2000 to 2005 to label them with aluminum plates; and (3) Analyze the structural parameters of the mangrove tree population in the Historical Park. For the good development of the research: Mangroves with plaques were measured. 150 young mangroves established between 2000 and 2005 were labeled and the structural parameters were calculated. The registration of 90 original mangles with plate and lost plate was obtained. The average growth of diameter to chest height (DAP) was 0,35 for R. mangle and 0,29 cm for R. x harrisonii. Aluminum plaques were placed on 93 individuals of R. mangle, 27 of Conocarpus erectus, 22 R. x harrisonii and 8 Laguncularia racemosa. R. mangle was the most abundant species with the highest Index of Importance Value (IVI).