Examinando por Materia "Hábitat"
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Publicación Acceso abierto Efecto de la fragmentación del paisaje sobre la diversidad de mamíferos terrestres en la vereda El Diamante, Tierralta - Córdoba(2020-11-10) Romero Oviedo, María José; Martínez Bravo, Caty MilenaFragmentation processes are mainly caused by changes in land use in natural ecosystems, which generates changes in the distribution, reproduction and survival of biodiversity. The objective of this study was to record the effect of landscape fragmentation on the diversity of terrestrial mammals in the village of El Diamante, Tierralta - Córdoba. The work was carried out in forest covers with 3 levels of fragmentation: high, medium and low. Data collection was done using the methodology proposed by Steenmans and Pinborg (1999), for the indicators of fragmentation and trapping in mammalian diversity. 119 records of land mammals were generated, belonging to 9 species, distributed in 5 orders and 8 families. The greatest diversity of terrestrial mammals was obtained in the low fragmentation covers.Publicación Acceso abierto Efecto del cambio climático en la distribución geográfica potencial de estrellas quebradizas (ECHINODERMATA: OPHIUROIDEA) en el sur del Golfo de Morrosquillo, Caribe colombiano(Grupo de Investigación Productos Naturales, 2022-01-24) Nisperuza Peréz, Carlos Andrés; Quirós Rodríguez, Jorge AlexanderIn the Colombian Caribbean, brittle stars represents an important component within the benthic communities; however, they are being affected by different natural and anthropogenic pressures. The purpose of this research was to assess the effect of climate change on the potential geographical distribution of ophiuroids: Hemipholis cordifera, Ophiactis savignyi, Ophiopsila hartmeyeri, Ophiothrix angulata and Ophiothrix orstedii in the southern Gulf of Morrosquillo, based on the Maximum Entropy (Maxent) method. The models that used oceanographic variables showed excellent predictive performance (AUC>0.90). The suitability curves showed that temperature, oxygen percentage and conductivity affect the distribution of the selected species. In the case of the models built from the climatic variables, these had a lower predictive power and precipitation was the parameter that contributes the greatest contribution to the distribution of the species. The projections to present show the bay of Cispatá and its adjacent areas as suitable areas for the presence of this taxonomic group. The models that used the climatic variables were projected under climate change stages, and its results predict an increase in the area of suitability for O. hartmeyeri in the entire geographic area in stages B1 and A2 by 2050; although, it will be locally extinct like the other species of ofiuros by 2080.Publicación Sólo datos Recuperación de Cryptococcus neoformans y Cryptococcus gattii a partir de fuentes ambientales en Cúcuta, Norte de Santander y su asociación con aislados clínicos(Universidad de Córdoba, 2018-12-19) Angarita, Asbleide Karina; Cardenas Sierra, Denny Miley; Parra Giraldo, Claudia Marcela; Diaz Carvajal, Claudia Yaneth; Escandón Hernandez, Patricia Luz