%0 Journal Article
%T Distribuci車n de los gaster車podos del manglar, Neritina virg赤nea (Neritidae) y Littoraria angulifera (Littorinidae) en la Ecorregi車n Dari谷n, Caribe colombiano Distribution of the mangrove gastropods Neritina virginea (Neritidae) and Littoraria angulifera (Littorinidae) within the Colombian Caribbean Dari谷n Ecoregion
%A Luis Ferney Ortiz
%A Juan Felipe Blanco
%J Revista de Biolog赤a Tropical
%D 2012
%I Universidad de Costa Rica
%X Aunque los gaster車podos son uno de los grupos m芍s abundantes en los manglares del Caribe, poco se sabe del 芍mbito de especies particulares debido al enfoque comunitario de la mayor赤a de los estudios. El 芍mbito de las poblaciones de L. angulifera y N. virginea fue estudiado en la Ecorregi車n Dari谷n, Caribe colombiano. El muestreo se realiz車 entre junio y agosto 2009, se recolectaron 3 963 individuos de ambas especies, a los cuales se les midi車 la talla de la concha. La Ecorregi車n present車 diferencias espaciales en el 芍mbito de la salinidad del agua a nivel superficial, la cobertura de manglar y el 芍mbito de las poblaciones. En la parte externa de la Ecorregi車n, L. angulifera present車 el mayor porcentaje de aparici車n (84.8%) en comparaci車n a N. virginea (15.2%). En el interior N. virginea present車 el mayor porcentaje (84.6%), mientras L. angulifera apareci車 solo en bah赤a Turbo (15.4%). Se encontraron diferencias en el 芍mbito de tallas promedio de las conchas, donde L. angulifera vari車 entre 6 y 22mm y N. virginea entre 6 y 12mm dentro del Golfo. Se confirma que L. angulifera es una especie de car芍cter estenohalina y marina, mientras que N. virginea es eurihalina y estuarina. Distribution of the mangrove gastropods Neritina virginea (Neritidae) and Littoraria angulifera (Littorinidae) within the Colombian Caribbean Dari谷n Ecoregion. Gastropods are one of the most abundant groups within the Caribbean mangroves, however, little is known about the distribution of particular species at a regional scale. With this aim, we studied the geographic distribution of Littoraria (Littorinopsis) angulifera and Neritina (Vitta) virginea within the Dari谷n Ecoregion in the Caribbean coast of Colombia, from 77 sampling stations along 609km between the Colombian-Panam芍 border and C車rdoba State, Colombia. The fieldwork was conducted in June-August 2009, and a total of 3 963 individuals of both species were hand-picked from the ground, prop-roots and trunks along 50m transects, and shell sizes were measured. The description of geographic patterns considered surface water salinity, mangrove cover and gastropod distribution within the Gulf of Urab芍. In the outer-most part of the Gulf, L. angulifera was present in 84.8% of the stations, while N. virginea was only present in 15.2% of the stations. In this part, mangroves areas were patchily distributed, and the gastropods (mainly L. angulifera) were found on woody debris along the supralittoral zone in sandy shores. In the inner-most part, in contrast, N. virginea occurred in 84.6% of the stations, mostly in estuaries, deltas and ri
%K gaster車podos del manglar
%K biogeograf赤a marina
%K tama o de la concha
%K estuario
%K Ecorregi車n Dari谷n
%K Caribe sur
%K mangrove gastropods
%K marine biogeography
%K shell size
%K estuary
%K Dari谷n ecoregion
%K Southern Caribbean
%U http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000100015