Browsing by Autor "Robert Langstroth"

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Description and phylogeny of a new species of Liolaemus (Iguania: Liolaemidae) endemic to the south of the Plurinational State of Bolivia
(Public Library of Science, 2019) Cristian Simón Abdala; Álvaro J. Aguilar-Kirigin; Romina Valeria Semhan; Ana Lucia Bulacios Arroyo; Julián Valdés; Marcos Maximiliano Paz; Roberto Gutiérrez; Pablo Valladares Faúndez; Robert Langstroth; James Aparicio
The Liolaemus montanus group is a diverse group of lizards that ranges from central Peru to southwestern Mendoza, Argentina, including much of the Plurinational State of Bolivia ("Bolivia") and Chile. The species of this group mainly inhabit high elevation areas with cold temperatures. In the last years, several species of this group have been described, mostly in Argentina and Chile. In Bolivia, there are at least thirteen valid species belonging to the L. montanus group. In this study, we describe a new species of the L. montanus group with a marked endemism in the Cordillera de Sama of the Tarija Department, Bolivia, and a combination of unique character states that allows its formal description as a new species. The phylogenetic relationships based on analysis of 159 morphological characters suggest that it belongs to the L. montanus group, and that it is closest to Liolaemus pulcherrimus, which is found allopatrically in a small area of the Jujuy Province, Argentina. The multivariate analyses of 66 morphological characters support the phylogenetic relationships. Statistical analyses of inter-species comparisons of morphological characters are not considered the only methods due to the non-independence of some characters states among species; thus, a phylogenetic analysis is recommended. The detailed revision of specimens of the L. montanus group held in the collections of Bolivia is filling major geographic gaps and improving our understanding of the phylogenetic and biogeographic relationships of this widely distributed group of South American lizards.
First records of Tropidurus madeiramamore Carvalho, Paredero, Villalobos-Chaves, Ferreira, Rodrigues &amp; Curcio, 2024 (Squamata, Tropiduridae) from Bolivia
(Pensoft Publishers, 2025) Robert Langstroth; Mauricio Herrera; Gabriel Callapa; Luis Rolando Rivas; Lucindo Gonzáles; Lesly López; A Dimeglio; Gregory Schneider; Robert B. Wallace
This note reports the first country records of Tropidurus madeiramamore Carvalho, Paredero, Villalobos-Chaves, Ferreira, Rodrigues & Curcio, 2024 for Bolivia, all northern Beni Department, extending the range by some 300 km to the west of earlier records, clarifying the status of specimens previously reported in the literature as Tropidurus oreadicus Rodrigues, 1987, and providing comments on the biogeographic and conservation values of the Amazonian savannas of the Beni.
Without a body of evidence and peer review, taxonomic changes in Liolaemidae and Tropiduridae (Squamata) must be rejected
(Pensoft Publishers, 2019) Jaime Troncoso‐Palacios; Margarita Ruiz De Gamboa; Robert Langstroth; Juan Carlos Rtiz; Antonieta Labra
In his recent self-published book "Reptiles en Chile", Diego Demangel Miranda presented 13 taxonomic changes for liolaemid and tropidurid lizards. While these could be considered validly published according to the International Code of Zoological Nomenclature, we show that these taxonomic propositions lack the necessary scientific rigor in terms of replicability, specimen work, lack of peer review and that they do not follow best practices accepted by the herpetological community. Therefore, we hereby invalidate all 13 taxonomic changes proposed in this book, leaving the taxonomy unaffected. Finally, we call attention to the potentially negative consequences of using these taxonomic changes in conservation and environmental impact studies as incorrect decisions might be taken in relation to the species involved.