Browsing by Autor "Ashton V. Crocker"

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Atractus albuquerquei Cunha &amp; Nascimento, 1983 (Serpentes, Dipsadidae): range extension and new country record for Bolivia
(Pensoft Publishers, 2020) Randy L. Powell; Cord B. Eversole; Dennis Lizarro; Ashton V. Crocker; Elizabeth A. Surovic; Gonzalo Calderón Vaca
We present a new country record and range extension for Atractus albuquerqueri Cunha and Nascimento, 1983 (Serpentes, Dipsadidae) from Bolivia. There is a paucity of published information on locality data and information on this species and this account contributes to the knowledge of its distributional status.
Bothrops taeniatus Wagler, 1824 (Serpentes, Viperidae): additional country record and list of voucher specimens for Bolivia
(Pensoft Publishers, 2020) Randy L. Powell; Cord B. Eversole; Dennis Lizarro; Ashton V. Crocker; Gonzalo Calderón Vaca; Elizabeth A. Surovic
We present a new country record and range extension for the snake species Bothrops taeniatus Wagler, 1824 (Serpentes, Viperidae). The specimen represents the northeastmost record in Bolivia and fills the distributional gap between the known Brazilian and Bolivian populations. There is a paucity of published information on locality data and information on this species and this account contributes to the knowledge of its distributional status.
Feliz cumplea&ntilde;os, 21 years for the Beni Anaconda, Eunectes beniensis (Dirksen, 2002) (Serpentes, Boidae): an update of voucher specimens, species&rsquo; distribution, and clarification of locality data of type specimens
(Pensoft Publishers, 2023) Randy L. Powell; Cord B. Eversole; Luis Rolando Rivas; Ashton V. Crocker; Paola De la Quintana
Little information for Eunectes beniensis (Dirksen, 2002) (Serpentes, Boidae) exists in the scientific literature and museum data. We review the natural history, diet, reproduction, distribution of this species and discuss its identifying characteristics. We present new records and discuss the species&rsquo; distribution in Bolivia. As reported in the previous literature, the geographic locality data of the holotype and paratypes are incorrect. We report corrected data for these specimens and update knowledge of the species&rsquo; distributional status and natural history by summarizing novel and existing data from the entirety of this species&rsquo; known range. We provide a distribution map based on vouchered museum specimens.
Herpetofauna of the Reserva de la Biósfera Estación Biológica del Beni and the Chimane Reserve Indigenous Territory, Bolivia
(Taylor & Francis, 2021) Cord B. Eversole; Randy L. Powell; Dennis Lizarro; Ashton V. Crocker; Gonzalo Calderón Vaca; Paola De la Quintana
Identifying patterns of herpetofaunal diversity is imperative to the conservation of these species and the ecosystems on which they rely. In this study, we determined species occurrence and composition of the herpetofauna at the Reserva de Biósfera Estación Biológica del Beni and the Chimane Reserve Indigenous Territory. Combined data resulted in documentation of 97 species belonging to 22 families and 50 genera. Reptiles were represented by 14 families and 47 species, while amphibians were represented by eight families and 50 species. This study provides a robust inventory and report of the herpetofauna at this site and delivers data that can be used in future studies. Our results indicate that this site harbors many species, which likely contributes to the collective maintenance of biodiversity in the Bolivian lowlands. Conservation initiatives should consider the collective uniqueness of vertebrate communities maintained by habitat mosaics in this area and strive to implement strategies that preserve and manage landscape-level biodiversity.
Introduction of a novel natural history collection: a model for global scientific collaboration and enhancement of biodiversity infrastructure with a focus on developing countries
(Springer Science+Business Media, 2019) Cord B. Eversole; Randy L. Powell; Dennis Lizarro; Federico Moreno; Gonzalo Calderón Vaca; James Aparicio; Ashton V. Crocker
Rhinobothryum lentiginosum (Scopoli, 1788) (Serpentes, Colubridae):&nbsp;additional country record and first list of voucher specimens for Bolivia
(Pensoft Publishers, 2021) Randy L. Powell; Cord B. Eversole; Dennis Lizarro; Ashton V. Crocker; Gonzalo Calderón Vaca; Elizabeth A. Surovic
We present an additional country record and a list of voucher specimens for Rhinobothryum lentiginosum (Scopoli, 1788) (Serpentes, Colubridae) from Bolivia. Very little published information on museum specimens and locality data from Bolivia exists for this species. This account contributes to the knowledge of its distributional status by summarizing all available data.
Two records of xanthism in Corallus hortulana (Serpentes: Boidae) in Bolivia with comments on the yellow, patternless morphotype
(National Institute of Amazonian Research, 2023) Luis Rolando Rivas; Cord B. Eversole; Ashton V. Crocker; Randy L. POWELL
ABSTRACT Snakes display a wide range of skin colors and patterns, acting in ecological, behavioral, and physiological roles. Xanthism has been reported in numerous snake species, including many neotropical taxa. Corallus hortulana is a polychromatic species widely distributed throughout South America. Yellow, patternless individuals, while rare, have been recognized as within the species’ polychromatic range. We report the first yellow, patternless specimens of Corallus hortulana collected in Bolivia and discuss whether these individuals fit the criteria of xanthism.
Xenopholis werdingorum, Jansen, Álvarez &amp; Köhler, 2009 (Squamata: Dipsadidae): range extension with comments on distribution
(Pensoft Publishers, 2016) Randy L. Powell; Cord B. Eversole; Ashton V. Crocker; Dennis Lizarro; Reinaldo Cholima Bravo
We present a significant range extension of Xenopholis werdingorum from Bolivia. There is a dearth of information on this recently described species, and this account significantly contributes to knowledge of its geographic range.