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      Variabilidad morfológica y crecimiento corporal de cuatro poblaciones de Crocodylus moreletii en cautiverio Translated title: Morphological variability and body growth on four populations of Crocodylus moreletii in captivity

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          Abstract

          El objetivo del trabajo fue evaluar la variabilidad morfológica y el crecimiento corporal de 4 poblaciones del cocodrilo de pantano (Crocodylus moreletii) que se encuentran en la Unidad de Manejo para la Conservación de la Vida Silvestre Cacahuatal ubicada en el estado de Veracruz, México. Se compararon 4 poblaciones: 2 poblaciones cuyos individuos nacieron en vida silvestre y 2 que nacieron en cautiverio. Los rasgos morfológicos estudiados fueron similares entre poblaciones y entre sexos. Las tasas de crecimiento corporal fueron significativamente diferentes entre poblaciones. Los individuos que nacieron en condiciones naturales crecieron más rápidamente que los nacidos en cautiverio. Se concluye que el cautiverio no parece afectar la expresión morfológica, pero sí la tasa de crecimiento corporal. Estos resultados muestran que diferentes poblaciones de C. moreletii pueden presentar un crecimiento diferencial determinado por las condiciones de cautiverio.

          Translated abstract

          The main goal of this study was to evaluate the effect of captivity upon morphological characteristics and body growth rates of the Morelet's crocodile (Crocodylus moreletii). The studied individuals are currently reared in the Management Unit for Wildlife Conservation (Cacahuatal), located at Veracruz, Mexico. Four populations were compared: individuals from 2 of them were born in wild conditions, whereas individuals from the other 2, were born in captivity. Morphology was similar among populations and between sexes. Body growth rates were significantly different among populations, those individuals born in natural conditions grew faster than those born in captivity. We conclude that captivity does not seem to affect the morphological expression of C. moreletii in comparison with a significant effect upon the rate of body growth. These results show that different populations of C. moreletii can exhibit differential body growth patterns depending on the conditions experienced in captivity.

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          Most cited references48

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          ALLOMETRY AND SIZE IN ONTOGENY AND PHYLOGENY

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            Allometry and size in ontogeny and phylogeny.

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              Geometric Similarity in Allometric Growth: A Contribution to the Problem of Scaling in the Evolution of Size

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México )
                2007-8706
                December 2010
                : 81
                : 3
                : 713-719
                Affiliations
                [1 ] Colegio de Postgraduados Mexico
                [2 ] Universidad Nacional Autónoma de México Mexico
                [3 ] Colegio de Postgraduados Mexico
                Article
                S1870-34532010000300013
                66f88f54-197c-4ec6-8f39-69e465eb9974

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

                History
                Categories
                Biodiversity Conservation

                Animal science & Zoology
                morphology,body growth rate,Management Unit for Wildlife Conservation,Morelet's crocodile,morfología,tasas de crecimiento corporal,Unidad de Manejo para la Conservación de la Vida Silvestre,cocodrilo de pantano

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