Abstract

VERA, Antonio; MORILLO, Gustavo  and  PACHECO, Darisol. Vegetation indices and landscape units of the Wildlife Fauna Reservoir Ciénaga de La Palmita and Isla de Pájaros, Zulia state, Venezuela. Rev. Inv. Cs. Agro. y Vet. [online]. 2020, vol.4, n.11, pp.157-169. ISSN L:2664-0902.

Abstract Vegetation indices and landscape units of the Wildlife Fauna Reservoir Ciénaga de La Palmita and Isla de Pájaros were determined, using LANDSAT 8 images (2013-2016) and the NDVI using the ENVI program. Seven landscape units were identified. The water surface of the swamp showed a low NDVI (0.00-0.03), associated with very little plant vigor and the swamp-land portion presented 0.04-0.08 linked to first signs of productivity. Muddy-bare soils revealed 0.09-0.16 related to scarce layers of phytoplankton. Disturbed xerophytic communities presented 0.17-0.24, contrasting with 0.25-0.28 of the xerophytic, spiny and semi-deciduous formations. The communities of Avicennia germinans, Conocarpus erectus and Laguncularia racemosa showed 0.29-0.39 due to low size and dead individuals; and Rhizophora mangle revealed 0.4-0.55, linked to arborea height, semi-enclosed canopy, few gaps and intense-bright leaf greenery. The units ranged from disturbed xerophytic scrubs to relatively well preserved R. mangle communities

Keywords : NDVI; wetland; xerophytic vegetation; mangrove; Lake of Maracaibo; anthropogenic disturbances; remote sensing.

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