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      Asimetría cráneo-mandibular de Artibeus lituratus (Chiroptera, Phyllostomidae) en Colombia Translated title: Cranial and mandibular asymmetry in Artibeus lituratus (Chiroptera, Phyllostomidae) from Colombia Translated title: Assimetria cránio-mandibular em Artibeus lituratus (Chiroptera, Phyllostomidae) na Colombia

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          Abstract

          Analizar la asimetría en especies asociadas a ambientes disturbados permite evaluar la plasticidad morfológica de especies generalistas, y las diferencias evolutivas entre sexos y poblaciones en la respuesta al estrés ambiental y genético. Este trabajo evalúa la asimetría craneal de Artibeus lituratus en Colombia. Esta especie tiene distribución amplia y alta abundancia, pero se desconoce su plasticidad morfológica. Se caracterizó la presencia y patrones de asimetría fluctuante, asimetría direccional y antisimetría. Se tomaron once medidas craneométricas de 146 individuos de diferentes regiones geográficas. Se encontró significancia para asimetría fluctuante en todas las medidas, en tres para asimetría direccional y antisimetría, y no se encontró significancia para el error de medida. Las hembras presentaron más asimetría fluctuante en el esplacnocráneo y los machos en el neurocráneo. Se evidenció menor asimetría y mayor similitud en variables con importancia funcional en la mordida. Los rasgos con asimetría direccional presentaron asociación a nivel mandibular. Se discute en qué medida la presencia y los niveles de asimetría craneal se relacionan con la similitud funcional que tengan diferentes rasgos.

          Translated abstract

          Analyzing asymmetry in species associated with disturbed environments enables the evaluation of the morphological plasticity of generalistic species and the different evolutionary responses of sexes or populations to environmental or genetic stress. This report is a study of the cranial and mandibular asymmetry of Colombian Artibeus lituratus. This species has a wide distribution and high abundance, but its morphological plasticity remains uncertain. We characterized its presence, fluctuating asymmetry, directional asymmetry and antisymmetry by measuring 11 craneometric traits in 146 adults from different localities. Fluctuating asymmetry was present in all traits; directional asymmetry and antisymmetry in three; and no measurement error in any trait. Females showed more fluctuating asymmetry in the splachnocranium and males in the neurocranium. Traits with functional importance while biting had lower levels of asymmetry and higher similarity. Traits with antisymmetry did not show association while traits with directional asymmetry showed mandibular association. We discuss the relation between the presence of cranial and mandibular asymmetry, with the functional similarity of different traits.

          Translated abstract

          Analisar a assimetria em espécies associadas a ambientes perturbados permite avaliar a plasticidade morfológica de espécies generalistas e as diferenc,as evolutivas entre sexos na resposta ao estresse ambiental e genético. Este trabalho avalia a assimetria cranial de Artibeus lituratus na Colombia. Esta espécie tem distribui(:äo ampla e é extremamente abundante, mas desconhece-se a sua plasticidade morfológica. Caracterizou-se a presenta e padröes nos níveis de assimetria flutuantes, assimetria direcional e anti-simetria. Foram obtidas onze medidas craniométricas de 146 individuos de diferentes regiöes geográficas. Encontrou-se significancia para assimetria flutuante em todas as medidas, em tres para assimetria direcional e anti-simetria, e näo se encontrou significancia para o erro de medida. As femeas apresentaram maior assimetria flutuante no esplacnocranio, enquanto nos machos essa ocorreu no neurocranio. Evidenciou-se menor assimetria e maior similaridade em variáveis com maior importancia funcional na mordida. Os caracteres com assimetria direcional apresentaram maior assoriac,äo com a mandíbula. Discute-se em que medida a presenta e os níveis de assimetria cranial se relacionam com a similaridade funcional dos diferentes caracteres.

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          Most cited references52

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          Foraging Ecology and Energetics of the Frugivorous Bat Artibeus Jamaicensis

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            Phenetics of Natural Populations. II. Asymmetry and Evolution in a Lizard

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              Composition, microgeographic variation, and sexual dimorphism in Caatingas and Cerrado bat communities from northeastern Brazil.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                unsc
                Universitas Scientiarum
                Univ. Sci.
                Facultad de Ciencias de la Pontificia Universidad Javeriana de Bogotá. (Bogotá )
                0122-7483
                April 2015
                : 20
                : 1
                : 141-152
                Affiliations
                [1 ] Pontificia Universidad Javeriana Colombia
                Article
                S0122-74832015000100010
                10.11144/Javeriana.SC20-1.acal
                79c84a5c-4ab9-4d4e-9b1c-1ce190e88ba6

                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=0122-7483&lng=en
                Categories
                MULTIDISCIPLINARY SCIENCES

                Stenodermatinae,ecomorphology,craniometry,asymmetry parameter,Neotropics,ecomorfologia,craniometria,parámetro de assimetria,Neotrópicos,ecomorfología,craneometría,parámetro de asimetría,Neotrópico

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