Análisis temporal de la cobertura en sabanas antrópicas de Sucre, Colombia

Abstract

The present work determines by satellites images interpretation the behavior of the covering of the anthropic savannas of Sucre, Colombia, from 1985 at 2017 emphasizing in its current state. In accordance with their structure the secondary savannas assemble: semi anthropic savannas, anthropic savannas, artificial wooded savannas and artificial without trees savannas. The results show in accordance with the percentage changes in function of the evaluated periods that the artificial wooded or without trees savannas increased their areas, what would imply a slow sucesional and persistent degradation of the whole system. It points out that the biggest negative cause is generally represented by the intensive cattle grazing and the adaptation of pasture through the persistent and successive deforestation and burns. Conclude that the system of anthropic savannas presents a slow degradation and that a loss of original biotopes exists. Key words:Anthropic savannas; coverage analysis; Sucre; Colombia. ResumenEl presente trabajo determina mediante interpretación de imágenes satelitales el comportamiento de la cobertura de las sabanas antrópicas de Sucre, Colombia, desde 1985 a 2017, enfatizando en su estado actual. De acuerdo con su estructura agrupa a las sabanas secundarias como sabanas semiantrópicas, sabanas antrópicas, sabanas artificiales con arbolado y sabanas artificiales sin arbolado. Muestran los resultados que de acuerdo con los cambios porcentuales en función de los periodos evaluados, se puede indicar que las sabanas artificiales con o sin arbolado aumentaron sus áreas, lo que implicaría una degradación sucesional lenta pero persistente de todo el sistema; señala así mismo que la mayor causa negativa está representada generalmente por el pastoreo intensivo y la adecuación de potreros a través de la constante y sucesiva deforestación y quema. Se puede concluir que el sistema de sabanas antrópicas presenta una degradación lenta y que existe una pérdida de biotopos originales. Palabras Clave:Sabanas antrópicas; análisis de cobertura; Sucre; Colombia. Análisis temporal de la cobertura en sabanas antrópicas de Sucre, ColombiaTemporary analysis of the covering in antropic savannas of Sucre, Colombia

Prevalence of gastrointestinal parasites in three groups of domestic poultry managed under backyard system in the Savanna subregion, Department of Sucre, Colombia

“…1 ) between January 2019 and March 2020. The climate of the study area is characteristic of tropical dry forest (bst) zones, with an average annual temperature of 27.2°C, yearly rainfall between 990 and 1,275 mm, and relative humidity of 80% [ 9 ]. The region is characterized by commercial poultry farms and numerous backyard poultry operations.…”