Melina Alicia Velasco, Igor Berkunsky, María Verónica Simoy, Sofía Quiroga, Gary M. Bucciarelli, Lee B. Kats, Federico Pablo Kacoliris,
... occupancy of two native amphibian species of the Valcheta stream in the Somuncura Plateau, northern Patagonia: the Valcheta frog, Pleurodema somuncurense and the Argentine common toad, ... surveys in 148 sites along the headwaters of Valcheta stream. We modelled the occupancy by including the ... of this reduction was much higher in the Valcheta frog than in the Argentine common toad. Overall, ... great relevance for land managers considering that the Valcheta frog is among the only three IUCN Critically ...
Tópico(s): Species Distribution and Climate Change
2017 - Springer Science+Business Media | Hydrobiologia
Melina Alicia Velasco, Federico Pablo Kacoliris, Igor Berkunsky, Sofía Quiroga, Jorge Daniel Williams,
The Valcheta Frog, Pleurodema somuncurense (Cei, 1969), is a critically endangered species endemic from Somuncura plateau, Patagonia, Argentina. Although ... visit survey in 40 sites of headwaters of Valcheta stream. Frogs were present in 58% of sites, ... was high. We increased the known range of Valcheta Frog in 160%, by adding new sites occupied ...
Tópico(s): Wildlife-Road Interactions and Conservation
2016 - UNIVERSIDADE DO VALE DO RIO DOS SINOS | Neotropical Biology and Conservation
Sonia A. Crichigno, L.A. Becker, Mabel Orellana, Rodrigo Larraza, Guillermo Mirenna, Miguel Ángel Battini, Víctor Cussac,
... Criadero Boca de Río), and a thermal stream (Valcheta) population of wild introduced rainbow trout. This was ... juveniles of the three strains, and on a Valcheta stream male x CENSALBA female F1 cross. Preferred ... temperature (LET, a measure of thermal tolerance) of Valcheta stream and F1 were significantly higher than those of CENSALBA, and the average PTs of Valcheta stream and F1 were higher than the 95% ...
Tópico(s): Aquaculture Nutrition and Growth
2017 - Elsevier BV | Aquaculture Reports
Silvia Ortubay, Sergio Enrique Gómez, Víctor Cussac,
... of its habitat, the head-waters of the Valcheta Stream, which is the only site where this ... of this species and other fishes in the Valcheta Stream. The responses of G. bergi to high ...
Tópico(s): Fish Ecology and Management Studies
1997 - Springer Science+Business Media | Environmental Biology of Fishes
... indígenas presos en el campo de concentración de Valcheta (1887). Para ello, y en primer lugar, queremos ... como parte de la narrativa histórica de entender Valcheta como un campo de concentración en el marco ...
Tópico(s): Argentine historical studies
2015 - Centre de Recherches sur les Mondes Américains | Nuevo mundo mundos nuevos
Melina Alicia Velasco, Carmen A. Úbeda, Jorge Daniel Williams, Federico Pablo Kacoliris,
... threatened Neotropical species, including the Critically Endangered microendemic Valcheta frog, Pleurodema somuncurense. This paper looks at the ... conducted from 2013–2015 in the headwaters of Valcheta Stream (northern Patagonia, Argentina), over the whole known ...
Tópico(s): Animal Behavior and Reproduction
2017 - | South American Journal of Herpetology
Mauro G. Passalia, Alberto C. Garrido, Ari Iglesias, Ezequiel I. Vera,
The Valcheta Petrified Forest is located in the northeast of the Río Negro Province, Argentina. This work provides a ... covered by thin layers of Quaternary sediments. The Valcheta Petrified Forest was developed on the margins of ...
Tópico(s): Plant and Fungal Species Descriptions
2022 - Elsevier BV | Cretaceous Research
Produção Nacional
Revisado por pares
Carmen I. Martínez Dopico, Paul Yves Jean Antonio, Augusto E. Rapalini, Mónica G. López de Luchi, Carolina Grillo Vidal,
... the northeastern North Patagonian Massif (NPM), close to Valcheta town (Río Negro Province, Argentina), to provide new ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2020 - Elsevier BV | Journal of South American Earth Sciences
Melina Alicia Velasco, Igor Berkunsky, Mauricio Sebastián Akmentins, CA Kass, ML Arellano, TM Aguirre, Jorge Daniel Williams, Federico Pablo Kacoliris,
... Status and population dynamics of the Critically Endangered Valcheta frog Pleurodema somuncurense on the Patagonian Somuncura Plateau ... populations and, therefore, better plan conservation activities. The Valcheta frog Pleurodema somuncurense is a Critically Endangered species, which is endemic to the Valcheta Stream, Patagonia, Argentina. We assessed the status of ... distribution range of each local population of the Valcheta frog. During 2015, we also applied a capture- ... length as a covariate. The metapopulation of the Valcheta frog is composed of 9 isolated local populations: ...
Tópico(s): Species Distribution and Climate Change
2019 - Inter-Research | Endangered Species Research
Luis María Torres, Carlos Ameghino,
... dejado para otra oportunidad a Monte Hermoso y Valcheta, que, segun el plan propuesto por el infrascrito ...
Tópico(s): Geography and Education Methods
1913 - | Revista del Museo de La Plata
... Cybacodamus Mello Leitão, Cyrioctea Simon, Ishania Chamberlin, and Valcheta Mello Leitão belong in the family Zodariidae; Barrisca ...
Tópico(s): Fossil Insects in Amber
1965 - Oxford University Press | Annals of the Entomological Society of America
Produção Nacional
Revisado por pares
I. Ruiz, J.M. Ceis, Willy Beçak,
... specimens from La Rioja, Mendoza, Malargue, Tamelen, Tapiluque, Valcheta, and Meseta de Somuncura. All populations showed active ...
Tópico(s): Genetic diversity and population structure
1982 - Karger Publishers | Cytogenetic and Genome Research
Javier Muzón, Gustavo R. Spinelli, Oscar Daniel Salomón, Gustavo Carlos Rossi,
... the Lutzomyia oswaldoi group is recorded from the Valcheta stream basin, Somuncura plateau, Patagonia. It represents the ...
Tópico(s): Research on Leishmaniasis Studies
2002 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz
R. J. Pankhurst, C. W. Rapela, Mónica G. López de Luchi, Augusto E. Rapalini, C. Mark Fanning, Carmen Galindo,
... on granitoid samples from the area west of Valcheta, North Patagonian Massif, Argentina. These confirm the Cambrian ...
Tópico(s): Geological formations and processes
2014 - Geological Society of London | Journal of the Geological Society
Roberto Carlos Menni, Sergio E. G�mez,
... in a peculiar spot — a tributary of the Valcheta creek — in the Somuncurá plateau in northern Patagonia, ...
Tópico(s): Fish Biology and Ecology Studies
1995 - Springer Science+Business Media | Environmental Biology of Fishes
Edmundo Larrieu, Teresa Costa, Gustavo Cantoni, R. Picado Alvarez, Laura Jorgelina Cavagión, José Luis Labanchi, Ricardo Bigatti, Daniel Araya, Eduardo Herrero, Emiliano Álvarez, Sérgio Mancini, P. Cabrera,
... A field study was conducted in four slaughterhouses (Valcheta, Los Menucos, Jacobacci, Bariloche) that process animals coming ...
Tópico(s): Congenital Anomalies and Fetal Surgery
2001 - Elsevier BV | Veterinary Parasitology
Sofía Quiroga, Federico Pablo Kacoliris, Ignacio García, Hernán Povedano, Melina Alicia Velasco, Sergio M. Zalba,
... trout Oncorhynchus mykiss into the thermal headwaters of Valcheta Stream (Patagonia, Argentina) and new predation records on ...
Tópico(s): Fish Biology and Ecology Studies
2017 - Wiley | Journal of Fish Biology
Carlos Alberto Milanesi, Silvina Andrea Marfil, Francisco Locati, D. Benito,
A fine-grained argillaceous reactive dolostone was identified in Argentina. In alkaline conditions, a clear dedolomitization reaction occurred, accompanied by a deleterious expansive process. The purpose of this paper is to investigate the correlation between the rock prism expansion and the reaction progress. Rock expansion (in high and low porosity samples) was evaluated by a modified ASTM C586 test method, using NaOH, KOH, LiOH, and Ca(OH)2 solutions. The reactivity was verified in concrete mixtures ...
Tópico(s): CO2 Sequestration and Geologic Interactions
2020 - Elsevier BV | Cement and Concrete Research
Micaela de Lucía, Diego E. Gutiérrez Gregoric,
... valchetensis Miquel, 1998, which is endemic to the Valcheta Stream, Somuncurá Plateau, Patagonia, Argentina. Here we provide ...
Tópico(s): Invertebrate Taxonomy and Ecology
2017 - Taylor & Francis | Molluscan Research
V. Cordi, Silvia Ortubay, Mariana Lozada,
... an endemic fish in the headwaters of the Valcheta stream in northern Patagonia, displays a fright reaction. ...
Tópico(s): Fish Biology and Ecology Studies
2005 - Wiley | Journal of Applied Ichthyology
... la lengua puelche iniciados el ano anterior en Valcheta, del mismo territorio na cional, fui a visitar ...
Tópico(s): Indigenous Cultures and History
1919 - | Revista del Museo de La Plata
... or reservations -Conesa, Choele Choel, Frias, The Cuy, Valcheta-. The same ones inform about the settlers, the ...
Tópico(s): History and Politics in Latin America
2016 - Instituto Superior del Profesorado N° 3 "Eduardo Lafferriére", Villa Constitución | Historia regional
Amalia Meza, Bernardo Eylenstein, María Paula Natali, G. Bosch, Juan Moirano, Elfriede Chalar,
... GNSS and geomagnetic stations at the city of Valcheta, Río Negro, Argentina (which was located right under ...
Tópico(s): Earthquake Detection and Analysis
2021 - Frontiers Media | Frontiers in Astronomy and Space Sciences
... analizamos las representaciones históricas y presentes del topónimo “Valcheta”, nombre actual de la localidad ubicada en la ... María Inés Kopp”, ubicado en la localidad de Valcheta, como en el Archivo Histórico de Río Negro ... esta discusión. Asimismo, mediante el trabajo etnográfico en Valcheta con una comunidad indígena mapuche-tehuelche, indagamos en ... resultado, este trabajo permitió identificar cómo el topónimo Valcheta, referenciado en distintas fuentes, ha cambiado a lo ...
Tópico(s): Nationalism and Cultural Identity
2023 - National Autonomous University of Mexico | Tlalli Revista de Investigación en Geografía
... una visitarealizada a la mina San Martin, en Valcheta (Rio Negro), explotadapara la extraccion de fluorita por ... tipos de filones de fluorita en lazona de Valcheta: aquellos que encajan directamente en la rocagranitica y ...
Tópico(s): Environmental and Ecological Studies
1966 - | Revista del Museo de La Plata
Facundo Orte, E. Fernández Lajús, R. P. Di Sisto, Elián Wolfram, Anabela Lusi, M. Gabriela Nicora, Raúl D’Elía, Federico Verstraeten, Sebastián Papandrea, Facundo Carmona,
... carried out a surface radiometric monitoring campaign in Valcheta (40.69°S; 66.15°W), Río Negro, ...
Tópico(s): Impact of Light on Environment and Health
2023 - Papers in Physics | Papers in Physics
Federico Pablo Kacoliris, Melina Alicia Velasco, María Luz Arellano, Igor Berkunsky,
... somuncurense, only registered in hot springs of the Valcheta Stream; the hooded grebe, Podiceps gallardoi; and the ...
Tópico(s): Species Distribution and Climate Change
2022 - Springer International Publishing | Natural and social sciences of Patagonia
Yasmin Romina Velazquez, M. Gabriela Nicora, Victoria Sol Galligani, Elián Wolfram, Facundo Orte, Raúl D’Elía, Sebastián Papandreas, Federico Verstraeten,
... the total solar eclipse of December 14, 2020: Valcheta (100% darkening), Buenos Aires (73%) and El Leoncito ( ... namely, a clear drop in radiation, particularly at Valcheta, which was very close to a frontal zone ... reports of atmospheric suspended dust. PG measurements at Valcheta during the eclipse showed PG values several ordersof ... CASLEO (1200 km away). The PG values at Valcheta were shown to be more closely related to ...
Tópico(s): Impact of Light on Environment and Health
2022 - Papers in Physics | Papers in Physics
Melina Alicia Velasco, Bettina Sandra Gullo, Federico Pablo Kacoliris, Camila Alejandra Kass, Joaquín D. Carrera,
... sanguijuela Oxypthychus inexpectatus depredando sobre la ranita de Valcheta, Pleurodema somuncurensis y el sapo comun, Rhinella arenarum , ... diciembre de 2014, en un sector del arroyo Valcheta llamado localmente Rama Caliente. Las sanguijuelas pueden causar ...
Tópico(s): Avian ecology and behavior
2015 - Asociación Herpetológica Argentina | Cuadernos de herpetología/Cuadernos de herpetología
Vianel Sevastei, Sonia A. Crichigno, María Victoria Santos, Andrea Trochine, Julio C. Painefilú, Noemí Zaritzky, Víctor Cussac,
... trout (Oncorhynchus mykiss) population of a thermal stream (Valcheta) in Northern Patagonia, in terms of juvenile thermal ... of upper thermal tolerance and higher preferred temperature (Valcheta stream), b) a wild temperate stream population (Guillelmo ...
Tópico(s): Aquaculture Nutrition and Growth
2023 - Elsevier BV | Aquaculture and Fisheries