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      COMPOSICIÓN Y DISTRIBUCIÓN DE LOS ENSAMBLAJES DE CRUSTÁCEOS GALATEOIDEOS (DECAPODA: ANOMURA) PRESENTES EN AGUAS COLOMBIANAS Translated title: Composition and distribution of galatheoid crustaceans (Decapoda: Anomura) present in Colombian waters

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          Abstract

          La caracterización de la megafauna de la plataforma y talud superior del Caribe y parte norte del Pacífico colombianos, realizada por diferentes exploraciones entre 1998 y 2009, confirma la riqueza específica, abundancia e importancia ecológica de las familias de galateoideos (Munididae y Munidopsidae). Sus especies forman conglomerados que en las partes más someras parecen estar condicionados por la presencia de hábitats particulares como formaciones coralinas de profundidad, a profundidades intermedias por las variaciones más importantes en las características de las masas de agua, y a mayores profundidades por características biológicas de las especies, que les permiten adaptarse a la heterogeneidad ecológica de la costa hasta los 500 m de profundidad. No se observó una relación clara entre la formación de conglomerados de estaciones y la sectorización por ecorregiones propuesta para el mar Caribe colombiano.

          Translated abstract

          Studies conducted between 1998 and 2009 on the megafauna of the continental shelf and upper slope of the Colombian Caribbean Region and northern area of Pacific coast of Colombia shows the high species richness, abundance and ecological importance of Galatheid families (Munididae and Munidopsidae). Species of this family form assemblages that in shallow waters seem to be conditioned by the presence of particular habitats such as deep-sea corals, at intermediate depths by the characteristics of water masses, and at deeper waters by biological characteristics of the species, which allow them to adapt to the ecological heterogeneity that exists down to 500 m depth. A clear relationship between the assemblages and the proposed Colombian Caribbean ecoregion zoning were not observed.

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          Proximate constraints on the evolution of egg size, number, and total clutch mass in lizards.

          Proximate constraints on egg size, number, and total clutch mass in side-blotched lizards were examined by experimentally reducing average clutch size from 4.6 eggs to one, two, and three eggs. Eggs from experimentally altered clutches were larger than those from controls, reflecting the trade-off between egg size and number. Moreover, the increased frequency of females with oviducally bound eggs or eggs that burst at oviposition suggests that egg size in clutches with very few eggs are at a functional upper size limit. These proximate constraints may also limit evolution of egg size in another group of lizards (Anolis) that only produces one-egged clutches.
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            Marine biodiversity: Patterns, threats and conservation needs.

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              Seamount endemism questioned by the geographic distribution and population genetic structure of marine invertebrates

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cal
                Caldasia
                Caldasia
                Instituto de Ciencias Naturales, Facultad de Ciencias-Universidad Nacional de Colombia (Bogotá )
                0366-5232
                December 2012
                : 34
                : 2
                : 367-384
                Affiliations
                [1 ] Universidad de Cartagena Venezuela
                [2 ] Universidad de Wageningen Netherlands
                [3 ] Universidad Nacional de Colombia Colombia
                Article
                S0366-52322012000200008
                abca5865-7b11-4aae-8f8f-38dcbcb96617

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Colombia

                Self URI (journal page): http://www.scielo.org.co/scielo.php?script=sci_serial&pid=0366-5232&lng=en
                Categories
                BIOLOGY

                General life sciences
                Munididae,Munidopsidae,assemblages,Colombia,Caribbean region,Pacific region,ensamblajes,Caribe,Pacífico

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