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      Rediscovery of the enigmatic forest racer snake, Dendrophidion boshelli Dunn, 1944 (Serpentes, Colubridae): actions for the conservation of a critically endangered species

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      Neotropical Biology and Conservation

      Pensoft Publishers

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          Abstract

          Dendrophidion boshelli is a poorly known and endemic snake species from the Middle Magdalena river valley in Colombia. It was described in 1944 based on a single specimen from the municipality of Caparrapí, department of Cundinamarca. Since the original description, only three additional specimens have been established. As part of the results of a herpetological monitoring in the Miel I Hydroelectric project, department of Caldas-Colombia, three additional specimens of D. boshelli were found in 2014–2015. The specimens represent the second known population of the species. We presented morphological data and pholidosis; description of the coloration in life, and a description of the habitat. Recently, D. boshelli was included as a Critically Endangered (CR) species in the Red Book of Reptiles of Colombia, and the IUCN Redlist. For this reason, to promote the local conservation of this and other endemic and threatened species in the Miel I area, we suggested some actions at the local level, such as establishing a conservation area with legal status in the Middle Manso River basin, which is a tributary of the Miel I Hydroelectric project.

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          Feeding in Snakes

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            Composition and natural history of a Cerrado snake assemblage at Itirapina, São Paulo state, southeastern Brazil

            Neotropical snake assemblages present high species richness and complex structures. The Cerrado is the second largest biome in Brazil, and was included among the 25 World's biodiversity hotspots. In southeastern Brazil, the remnant Cerrado areas have suffered intense destruction, and presently less than 2% of Cerrado natural vegetation remain in São Paulo state. Virtually no detailed study on Cerrado snakes was carried out in this region. The Itirapina region has one of the last well preserved remnants of open cerrado in São Paulo state. Our purpose in this work was the study of natural history and composition of the Cerrado snakes of Itirapina region. We performed an extensive field sampling combining six sampling methods in Estação Ecológica de Itirapina and disturbed Cerrado areas in its surroundings (municipalities of Itirapina and Brotas), during 101 trips throughout 43 months, between September 1998 and March 2002, corresponding to 446 days of field sampling. We also collected additional data from museum specimens housed in scientific collections. We present data on size, general abundance, habitat and macrohabitat use, daily and seasonal activity, feeding, reproduction, and defense. We also compared the Itirapina snake assemblage with nine snake assemblages of Brazil, from Amazonia, Atlantic Forest, Cerrado, and other open habitats. We recorded a total of 36 snake species among 755 individuals found in the field and six records from scientific collections and literature, belonging to 25 genera and five families. The snake assemblage comparisons indicate that the Cerrado has its own identity regarding the snake composition. Although small (about 2,300 ha), the Estação Ecológica de Itirapina encompasses well preserved and representative Cerrado physiognomic forms, which harbors a rich and typical Cerrado snake fauna. The occurrence of some species only inside the reserve also indicates that the Estação Ecológica de Itirapina is of fundamental importance to the maintenance of Cerrado biodiversity.
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              Snake Road Mortality in a Protected Area in the Atlantic Forest of Southeastern Brazil

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                Author and article information

                Journal
                Neotropical Biology and Conservation
                NBC
                Pensoft Publishers
                2236-3777
                December 30 2019
                December 30 2019
                : 14
                : 4
                : 577-589
                Article
                10.3897/neotropical.14.e39572
                © 2019

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

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