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- Title
Ecological connectivity in the buffer zones of the Porce II and Porce III reservoirs.
- Authors
Avendaño Cañas, Manuela; Gañan Tapasco, Cristian Camilo; Suárez Gómez, July Andrea
- Abstract
Preservation of ecological connectivity is recognized globally as a strategy for biodiversity conservation. The study includes an analysis of landscape metrics and the mapping of ecological networks to identify areas to prioritize for conservation. The operation of the Porce II and Porce III hydroelectric power plants generates changes in the landscape configuration that need to be studied from many aspects, including ecological connectivity. In this work, we evaluated the change in structural connectivity between the years 2011-2016-2021 for the Porce III hydroelectric power plant and 2016-2021 for the Porce II hydroelectric power plant, using landscape metrics with R package Lconnect. We also identified the potential habitat nuclei and traced a general connectivity network incorporating key variables in deforestation models and in the movement of species, using least-cost routes and electric circuit theory. The results of the landscape metrics showed an improvement in the connectivity of the two hydroelectric plants during the analysis periods, with an increase in forest cover and the Integral Connectivity Index, and a decrease in the number of components, indicating less fragmentation. Regarding the connectivity network, 40 potential habitat nodes were identified. This general connectivity network helps to identify the areas necessary for conservation in the buffer zone of the hydroelectric plants mentioned above and constitutes a baseline for subsequent connectivity studies. This project was developed within the framework cooperation agreement CT-2020-000469 between Empresas Públicas de Medellín E.S.P. and Universidad Nacional de Colombia - Medellín campus.
- Subjects
MEDELLIN (Colombia); UNIVERSIDAD Nacional de Colombia; HYDROELECTRIC power plants; ECOLOGICAL mapping; MOLECULAR connectivity index; BIODIVERSITY conservation; ELECTRIC circuits; HABITATS
- Publication
Revista Facultad Nacional de Agronomía Medellín, 2023, Vol 76, p13
- ISSN
0304-2847
- Publication type
Article