Results: 4639

Isla Gorgona, enclave estratégico para los esfuerzos de conservación en el Pacífico Oriental Tropical

Rev. biol. trop; 62 (supl.1), 2014
Gorgona, located in the southern zone of the Pacific Ocean of Colombia, is an insular territory at 35km in a straight line from the continental margin. Although historically this island was used in different forms, since 1984 it has been among the most important protected marine areas of the Colombian Pa...

Estructura y diversidad de la vegetación del Parque Nacional Natural de la Isla Gorgona, Colombia

Rev. biol. trop; 62 (supl.1), 2014
Gorgona is a continental island in the Pacific of Colombia. We studied the structure and diversity of its vegetation with 16 Gentry transects (total area 0.16ha) in nine sites on the island. With these data, we calculate Importance Value Index (IVI), distribution of individuals according to their height ...

Algas marinas bentónicas de la Isla Gorgona, costa pacífica colombiana

Rev. biol. trop; 62 (supl.1), 2014
The knowledge of the biodiversity of Gorgona, a continental island in Colombia, is very limited in the case of algae. We present an updated list of the benthic marine algae of Gorgona Island, associated with different marine environments and type of substrates, such as coral reefs, rocks, and soft bottom...

Gorgona, Baudó y Darién (Chocó Biogeográfico, Colombia): ecorregiones modelo para los estudios ecológicos de comunidades de quebradas costeras

Rev. biol. trop; 62 (supl.1), 2014
This paper summarizes the available information on the geology, hydrology, and biota of coastal streams located in the Gorgona National Natural Park (GNNP), and the Baudó and Darién ecoregions within the Biogeographic Chocó (Colombia). Despite of the scant number of studies, we hypothesized that these...

Patterns at Multi-Spatial Scales on Tropical Island Stream Insect Assemblages: Gorgona Island Natural National Park, Colombia, Tropical Eastern Pacific

Rev. biol. trop; 62 (supl.1), 2014
Tropical Eastern Pacific island streams (TEPis) differ from other neotropical streams in their rainy climate, mixed sedimentary-volcanic geology and faunal composition. Yet, their relationships between environmental characteristics and stream biota remain unexplored. We analyzed the environmental subject...

Shredders are abundant and species-rich in tropical continental-island low-order streams: Gorgona Island, Tropical Eastern Pacific, Colombia

Rev. biol. trop; 62 (supl.1), 2014
Macroinvertebrate shredders may have been overlooked in tropical streams due to the geographical bias of early studies, methodological limitations, and the complex influences of local-scale factors. While shredders seem to be scarce in most oceanic island streams, we here test if they are abundant in a c...

Short-term assessment of the sediment deposition rate and water conditions during a rainy season on La Azufrada coral reef, Gorgona Island, Colombia

Rev. biol. trop; 62 (supl.1), 2014
One of the major stresses on corals is the settlement of suspended sediment on their surfaces. This leads to the blocking of light, the covering of the coral mucus surface and an increased risk of disease. For this reason sediment deposition on a reef is considered a highly important variable in coral re...

Fitoplancton y zooplancton en el área marina protegida de Isla Gorgona, Colombia, y su relación con variables oceanográficas en estaciones lluviosa y seca

Rev. biol. trop; 62 (supl.1), 2014
We studied the variation in abundance and biomass of plankton in the pelagic environment of Gorgona during October 2010 (rainy season) and March 2011 (dry season), and evaluated their correlation with hydrographic features of temperature, salinity, dissolved oxygen and transparency. Surface waters during...

Hidrodinámica aplicada a la gestión y la conservación de ecosistemas marinos y costeros: Isla Gorgona, Océano Pacífico Colombiano

Rev. biol. trop; 62 (supl.1), 2014
Palmeras (Gorgona National Park) is one of the most important sites for sea turtle nesting in South and Central America. Because of the morphological processes affecting the beach, the turtle nests are increasingly exposed to the impact of waves and tides, threatening conservation. A study was made to de...

Annual abundance of salps and doliolids (Tunicata) around Gorgona Island (Colombian Pacific), and their importance as potential food for green sea turtles

Rev. biol. trop; 62 (supl.1), 2014
Gorgona National Park protects fertile waters that support large vertebrates, including green sea turtles (Chelonia mydas), and for them, gelatinous zooplankton constitute a food resource that can be found year-round in Gorgona Island´s coastal waters. This study was carried out to determine the abundan...