Results 81 to 90 of about 33,925 (235)

Dos nuevas especies de Pogonomyrmex (Hymenoptera: Formicidae) de la Argentina [PDF]

, 2009
Se describen dos nuevas especies de Pogonomyrmex Mayr para la Argentina: P. mendozanus sp. nov. y P. kusnezovi sp. nov. Se presenta una lista actualizada de las especies de Pogonomyrmex de la Argentina junto con datos de distribución, comentarios sobre ...
Claver, Silvia, Cuezzo, Fabiana del Carmen   +1 more
core  

Future Climate Change Threatens the Genetic Diversity and Distribution of Some South American Freshwater Crustaceans of the Genus Aegla

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Climate change significantly threatens biodiversity, particularly in freshwater ecosystems, which host many endemic and threatened species. Among them, aeglids stand out as strictly endemic, ecologically important and highly threatened crustaceans, making them a relevant model for investigating the impacts of climate change on aquatic ...
Gislaine Puli, Álvaro Augusto Mainardi, Sandro Santos, Gabriel Correa Costa, Marlise Ladvocat Bartholomei‐Santos   +4 more
wiley   +1 more source

Caenogastropods and heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography and Early Jurassic faunal recovery in the western Tethys

Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract We describe the Hettangian Caenogastropoda and Heterobranchia of the Luxembourg Sandstone Formation, a wedge of clastic sediments deposited along the eastern margin of Paris Basin during the Early Jurassic. Five new genera and 11 new species are erected: Bourguetia bipartita sp. nov., Globularia delsatei sp. nov., Oonia feidtorum sp.
Stefano Monari, Roberto Gatto, Mara Valentini, Robert Weis   +3 more
wiley   +1 more source

Bipolar flaking as a component of a supraregional lithic resource base: A comparative study of cores from the Pampean and Northcentral Patagonian Atlantic coasts (Argentina) [PDF]

, 2018
Several authors argue that bipolar technology is an expeditious and versatile strategy, efficient for the reduction of small nodules. However, few studies analyze the use of bipolar reduction in relation to the lithic environmental supply. At the Pampean
Banegas, Anahi, Bonomo, Mariano, Gomez Otero, Julieta   +2 more
core   +1 more source

Patagonian Imaginary Nature: Colonial Narratives in Documentary Films on Subnational Spaces (1920–1955)

Bulletin of Latin American Research, Volume 45, Issue 1, January 2026.
This study contributes to the ongoing historical examination of ecological and postcolonial questions in Latin America through the lens of new media genre narratives. Early 20th‐century documentary films of Argentine Patagonia institutionalised a natural binary opposition, positioning those challenging colonial power relations based on natural ...
Cielo Zaidenwerg, Mauricio Dimant
wiley   +1 more source

Plasma Biochemistries and Morphometric Indices of Body Condition in Imperial Cormorant (Phalacrocorax atriceps) Chicks [PDF]

, 2017
Plasma biochemistries provide a complementary method for assessing physiological and nutritional status of free-ranging wild birds. Triglycerides, total protein and alkaline phosphatase were determined in 110 free-living Imperial Cormorant (Phalacrocorax
Gallo, Luciana, Quintana, Flavio Roberto, Svagelj, Walter Sergio, Uhart, Marcela María   +3 more
core   +1 more source

Chloroplast Genome Characterization of Benthamiella Patagonica (Benthamielleae, Solanaceae)

Ecology and Evolution, Volume 15, Issue 12, December 2025.
This study presents the first complete chloroplast genome (155,570 bp) of Benthamiella patagonica, representing the early‐diverging tribe Benthamielleae within Solanaceae. Comparative genomic analyses revealed high structural similarity with other Solanaceae species, while phylogenetic reconstruction confirmed B.
Abdullah, Liya Guo, Abdur Rab, Abdul Sammad, Rushan Yan, Parviz Heidari, Xiaoxuan Tian   +6 more
wiley   +1 more source

New postcranial remains of large toxodontian notoungulates from the late Oligocene of Mendoza, Argentina and their systematic implications [PDF]

, 2017
During the last decade, the Deseadan (late Oligocene) Quebrada Fiera locality, Mendoza Province, Argentina, has provided a large amount of mammal remains.
Cerdeño Serrano, Maria Esperanza, Hernández del Pino, Santiago Ezequiel, Seoane, Federico Damián   +2 more
core   +1 more source

Ou topos Chubut. Las identidades territoriales en el nacimiento del sistema político chubutense / Ou topos Chubut. Territorial identities in the beginnings of Chubut’s political system

(En)clave Comahue, 2017
En el presente artículo argumentamos que la promesa de plenitud que sostiene la reproducción de la vida comunitaria chubutense, pasa también por la pretensión utópica de administrar el tiempo y el espacio de forma tal que cada sujeto (o territorio) ocupe el lugar que le corresponde según su capacidad.
Sebastian Barros, Anaclara Raffaele
openaire   +1 more source

Petrology of continental pyroclastic and epiclastic sequences in the Chubut Group (Cretaceous): Los Altares-Las Plumas area, Chubut, Patagonia Argentina

Revista geológica de Chile, 2000
Las sucesiones volcaniclasticas de la Formacion Cerro Barcino (Grupo Chubut, Aptiano-Cenomaniano), afloran en ambas margenes del rio Chubut con 200 m de espesor. Los miembros medio: Cerro Castano (sineruptivo, 90 m) y superior, Las Plumas (intereruptivo, 110 m) son descritos con el mapeo fotogeologico, estudios de campo y laboratorio (mineralogico ...
Manassero, Marcelo, Zalba, Patricia E., Andreis, Renato R., Morosi, Martín   +3 more
openaire   +4 more sources