Variación Espacio-Temporal De Plantas Vasculares Acuáticas en El Complejo Cenagoso Del Bajo Sinú, Córdoba, Colombia

Abstract

RESUMENSe determinó la variación espacio temporal de las plantas vasculares acuáticas en las ciénagas de María Arriba, San Sebastián, Purísima y Momil del complejo cenagoso del bajo Sinú (CCBS), en el departamento de Córdoba (Colombia), abarcando los periodos hidrológicos ocurridos durante el año 2011. El área de estudio se dividió en cuatro sectores y mediante el método de intercepción en línea se determinó la abundancia y frecuencia de las hidrófitas. Se registraron 39659 individuos distribuidos en 24 familias, 30 géneros y 35 especies. La mayor abundancia de especies se presentó en Momil con 18582 individuos, siendo la familia Lemnaceae la más representativa. El análisis de varianza (ANOVA) indica que no existen diferencias estadísticas significativas en la abundancia de la especies de plantas acuáticas de los meses de muestreo (F = 1,04; GL = 11; p = 0,083), sin embargo, se evidenció la incidencia del período hidrológico sobre la dinámica de crecimiento de las plantas, algunas especies desaparecen en época seca, otras sobreviven un periodo corto de tiempo, mientras que otras como Lemna minor L y Salvinia auriculata Aubl aumentan en época de lluvia.Palabras clave: Ciénagas, comunidad, composición estructura, plantas vasculares acuáticas. ABSTRACTThe space-time variation of vascular aquatic vegetation was studied in Maria Arriba, San Sebastian, Purísima and Momil swamps of the lower Sinú swamp complex, located in the department of Córdoba (Colombia), covering hydrological periods occurred in one year. The area of study was divided in four sectors and by the linear intercept method it was determined the abundance and frequency of the hydrophytes. They were recorded 39659 individuals distributed in 24 families, 30 genus and 35 species. The highest abundance of species was presented in Momil with 18582 individuals being the family Lemnaceae the most representative. The analysis of variance (ANOVA) shows that not exist statistically significantly different in the abundance of the species of aquatic plants from sampling months (F = 1,04; GL = 11; p = 0,083), however, it has demonstrated the incidence of a hydrological period on the plants dynamic growth, some species disappear in dry season, others survive for a short period of time, while others like Lemna minor L. y Salvinia auriculata Aubl. increase in the rainy season.

The invasive snail Melanoides tuberculata (Müller, 1774) (Gastropoda, Thiaridae) in the lower basin of the Sinú River, Córdoba, Colombian Caribbean

“…The Sinú River is part of one of the main ecosystems of the Colombian Caribbean coast. Along its course, the river has a complex connections with streams, marshes, and swamps that regulate its level during maximum flood periods (CVS 2009, Montoya and Aguirre 2009, Pérez-Vásquez et al 2015. We recorded M. tuberculata at 4 localities of the basin: Caño de San Vicente, Los Corrales, Momil, and Purísima (Fig.…”

Treatment Wetland with Thalia geniculata for Wastewater Depuration in the Department of Sucre, Colombia

“…Population density of the plants under natural conditions was determined at the three sampling points (P1, P2, and P3) using 1 m 2 quadrants placed every 2 m along the shoreline. The number of individuals per square meter was counted during two different climatic periods, one during the rainy season and the other during the dry season, following the methodology described in [6].…”

“…Each plant used in constructed wetlands has different structural and physiological adaptations to survive in different environmental conditions. Specifically, aquatic plants have been used for treating wastewater or as bioindicators of water quality [6].…”

Spatial and temporal variation of the macrophyte assemblage in Santo Tomás, a wetland in the Caribbean Colombian

“…Periodic fluctuations in the water level allow the establishment of plant communities with changes in the dominance of certain species (Delatorre et al, 2019). During the dry period, when the water level decreases, some species establish taking advantage of the supply of nutrients from the decomposition of other plants (Pérez-Vásquez et al, 2015). Functional diversity also varies according to the flood cycle, due to macrophytes with life forms predominant defining the community characteristics (Catian et al, 2018).…”