Article
Plant Sciences
Cristian S. Abdala, Pablo Anselmo Chafrat, Juan C. Chaparro, Ivan Ezequiel Procheret, Julian Valdes, Vanina Lannutti, Laura Perez, Sebastian Quinteros
Summary: A new species of Liolaemus from Argentina is identified using integrative evidence methodology. The new species is closely related to L. mapuche, but is larger in size and has more scales. It has strict sand-dwelling habits and is found under Neltuma alpataco bushes. Molecular and morphological analysis suggests that L. mapuche is the sister species of the new one. The new species belongs to the Liolaemus boulengeri species group, which includes 75 species distributed in several South American countries.
EUROPEAN JOURNAL OF TAXONOMY
(2023)
Article
Zoology
Kevin I. Sanchez, Mariana Morando, Luciano J. Avila
Summary: We describe Liolaemus attenboroughi sp. nov., a lizard species previously confused with L. kingii in northwestern Patagonian Steppe, Argentina. Recent molecular evidence supports its independent evolutionary status. In this study, we provide a morphological diagnosis, compare three molecular species delimitation methods, and present an updated phylogeny of the L. kingii group. Based on current distribution information, this new species is allopatric with geographically close species of the L. kingii group.
Article
Biology
Alejandro Bruno Miranda-Calle, Luis F. Pacheco, James Aparicio, Fausto R. Mendez-De La Cruz
Summary: Lizard species exhibit diverse behavioral and physiological responses to thermal environmental conditions, allowing them to inhabit a wide range of latitudes and elevations. By studying the thermal biology of the Critically Endangered lizard Liolaemus aparicioi along an elevational gradient, it was found that lizards at higher elevations have lower thermoregulatory efficiency but may use behavioral, temporal, and physiological strategies to mitigate thermal costs along elevation gradients.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Zoology
Sabrina Noelia Portelli, Cristian Simon Abdala, James Schulte, Juan Manuel Diaz Gomez, Linda Diaz Fernandez, Andres Sebastian Quinteros
Summary: The study provides important information about the historical distribution and evolution of the Liolaemus boulengeri group through analysis of fossil and molecular data. Biogeographic analysis reveals the approximate location of the ancestral area of the L. boulengeri group and highlights the impact of a series of dispersal and vicariance events on its distribution.
SOUTH AMERICAN JOURNAL OF HERPETOLOGY
(2022)
Article
Zoology
Aaron J. Quiroz, Ling Huamani-Valderrama, Roberto C. Gutierrez, Alvaro J. Aguilar-Kirigin, Evaristo Lopez-Tejeda, Ana Lazo-Rivera, Wilson Huanca-Mamani, Pablo Valladares-Faundez, Juan J. Morrone, Jose Cerdena, Juan C. Chaparro, Cristian S. Abdala
Summary: The study describes a new species of Liolaemus discovered in the southwestern Andes of Peru, with unique morphological, scalation, and color pattern characteristics. The new species is confirmed to belong to the Liolaemus montanus species group and the L. reichei Glade, and is endemic to the eastern slopes of La Caldera batholith in the Department of Arequipa, southern Peru. It is suggested that the species be included in the IUCN red list as endangered.
ZOOLOGICAL STUDIES
(2021)
Article
Zoology
Soledad Ruiz, Mario Ricardo Ruiz-Monachesi, Leonardo Escalante, Soledad Valdecantos, Fernando Lobo
Summary: The Andean orogeny promoted the diversification of the Liolaemidae family, with Liolaemus being the most species-rich genus. A new species within the L. ornatus group was described using morphological and molecular evidence, showing distinct character states from other group members and Liolaemus species. Divergence analysis and correlation with geological events indicated how physical barriers influenced the diversification and distribution of the L. ornatus group.
ZOOLOGISCHER ANZEIGER
(2021)
Article
Agriculture, Dairy & Animal Science
Madeleine Lamborot, Carmen Gloria Ossa, Nicolas Aravena-Munoz, David Veliz, Raul Araya-Donoso
Summary: This study reveals the existence of seven differentiated chromosome races in the lizard Liolaemus monticola in Chile, each with unique chromosome characteristics and high levels of polymorphism. The geographical distribution of these races is associated with the presence of rivers, which could act as barriers to gene flow. The study highlights the importance of chromosomal mutations for population differentiation and speciation.
Article
Zoology
Javier Nori, Romina Semhan, Cristian Simon Abdala, Octavio Rojas-Soto
Summary: The unique case of Argentinian reptiles, particularly the genus Liolaemus, is experiencing a significant increase in known species due to a high species description rate of 3.25 spp./year. This recent evolutionary radiation in Liolaemus has led to spatial changes in richness and endemism patterns, particularly in the Patagonian steppe and Monte ecoregions of Argentina. The decrease in average extent of occurrence (EOO) of Liolaemus species also poses an increased extinction risk, with 80% of species today having an EOO smaller than 20,000 km(2).
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Zoology
Luciano Javier Avila, Juan Esteban Vrdoljak, Cintia Debora Medina, Juan Garcia Massini, Cristian Hernan Fulvio Perez, Jack W. Sites, Mariana Morando
Summary: The newly described species Liolaemus galactostictos sp. nov. stands out from other members of its group due to its black dorsal coloration pattern, unique to this species. Found only in its type locality on the Velasco Mountains in Argentina, this strictly saxicolous, viviparous lizard feeds on insects.
Article
Environmental Sciences
Shengnan Yang, Xiaoyi Wang, Junhua Hu
Summary: Amphibians are at risk of habitat loss and fragmentation due to climate change, impacting their ability to adapt. The study predicts significant habitat and connectivity losses for mountain frogs in central and southern China, with increased fragmentation and optimistic projections along the Sichuan Basin. Conservation strategies should focus on preserving climate-change refugia and habitat connectivity to ensure species persistence.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Anatomy & Morphology
Franco M. Valdez Ovallez, Rodrigo Gomez Ales, Vanesa Astudillo, Mariela Cordoba, Gustavo Fava, Rodrigo Acosta, Graciela Blanco, Jose Villavicencio, Juan Carlos Acosta
Summary: This study investigated the thermoregulatory efficiency and locomotor performance of lizards in the Central Andes of Argentina. The results showed that these lizards have thermal sensitivity in locomotor performance with respect to body temperature and exhibit temperature flexibility in cold environments.
Article
Geography, Physical
Juan Pablo Donadei
Summary: This study analyzes the technological management of raw materials and the mobility strategy of human groups during the mid-Holocene in the eastern Tandilia mountain range, showing different procurement strategies for rocks. It also suggests an increased use of immediately available raw materials during a period of environmental aridity, with human groups intensifying their occupation of Tandilia mountain valleys. In the southeastern Pampean region, hunter-gatherer groups combined forager and collector strategies to take advantage of diverse natural resources in the landscape.
QUATERNARY INTERNATIONAL
(2022)
Article
Ecology
Alexander Skeels, Damien Esquerre, Daria Lipsky, Loic Pellissier, Lydian M. Boschman
Summary: This study investigates the dual roles of climate change and mountain uplift on the evolution of a hyper-diverse lizard species, Liolaemus, in central and southern South America. The results show that mid elevations with complex topography and moderate climate are optimal for diversification. Climate change through the Cenozoic explains variation in speciation and extinction rates across different elevational bands.
Article
Zoology
Misshell D. Ubalde-Mamani, Roberto C. Gutierrez, Juan C. Chaparro, Alvaro J. Aguilar-Kirigin, Jose Cerdena, Wilson Huanca-Mamani, Stefanny Cardenas-Ninasivincha, Ana Lazo-Rivera, Cristian S. Abdala
Summary: The study describes a newly discovered species of Liolaemus inhabiting the dry Puna of the RPSCC in southwestern Peru, above 4,500 meters. This new species is differentiated from its closest congeners by a combination of morphological and molecular characters.
AMPHIBIAN & REPTILE CONSERVATION
(2021)
Article
Zoology
Jose Alejandro Scolaro, Valeria Corbalan, Lorena Obregon Streitenberger, Osvaldo Fabian Tappari
Summary: This study describes a new sexually monomorphic species, Phymaturus katenke, living at about 800 m altitude on basaltic outcrops in the central steppe of Chubut Province, Argentina. The study morphologically compared individuals of the studied population with phylogenetically related and geographically neighbouring species. The distribution and natural history of the species are also highlighted.
NORTH-WESTERN JOURNAL OF ZOOLOGY
(2021)