Seasonal Dynamic of the Vegetation at “Los Carneros” Lagoon: Handled Floral Reserve Sabanalamar-San Ubaldo, Pinar del Río, Cuba

Abstract

In this study, the seasonal dynamic of the aquatic and swampy plants above ecosystems of sand of quartz is analyzed. The study area is located in the phytogeographical district of Sabaloense, and is characterized by quaternary geology (Pleistocene), with deposits of quartz sands, as well as with pronounced acidic to very acidic features, and is extremely poor in nutrients. The methodology is based in fieldwork in the area from 2005 to 2009, location of three 1 × 20 m large plots for each body of water, with a strict observation of the environmental conditions, and species counting. Through the utilization of the abundance-dominance curves, applications of Shanon and Simpson indices, and by the testing methods of Kruskall Wallis, significant differences among the categories within the inventory, habitat and biological types were determined. Geoelements were also determined, and vegetation profiles were also done at a scale of 1:25 to attempt to represent the natural way in which the species are excluded in the different periods. The results exhibit four states for the period of study, and proven as well was the constant danger to which they are subjected by the wrongful use of these bodies of water.