Results 41 to 50 of about 8,948 (183)

Improvement in survivorship: The key for population recovery? [PDF]

, 2016
In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962.
Crespo, Enrique Alberto, Dans, Silvana Laura, Grandi, Maria Florencia   +2 more
core   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

Structural framework and evolution of the Golfo San Jorge Basin: a synthesis

Latin American Journal of Sedimentology and Basin Analysis
The Golfo San Jorge Basin evolved through a complex multiphase structural history from the Middle Jurassic to the Neogene. Its stratigraphic record captures key tectonic events in central extra-Andean Patagonia during Gondwana fragmentation and the ...
José Oscar Allard, Nicolás Foix, José M. Paredes, Raúl E. Giacosa, Sebastián A. Bueti, Francisco E. Oporto Romero, Agustín R. Rodríguez   +6 more
doaj   +4 more sources

Pulgas (Insecta: Siphonaptera) asociadas al marsupial neotropical amenazado “monito del monte” (Dromiciops gliroides Microbiotheria: Microbiotheriidae), en su población más austral de la Argentina [PDF]

, 2018
Dromiciops, nocturnal marsupial genus endemic to the temperate forests of southern South America, is the only living representative of the Order Microbiotheria. Here we study the Siphonapteran fauna of Dromiciops gliroides ?monito del monte?
Gurovich, Yamila, Sánchez, Juliana Patricia   +1 more
core  

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

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

Fisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos, Eduardo R. Secchi, Joanna Turner, Luis Gustavo Cardoso   +3 more
wiley   +1 more source

Serological Survey of Antibodies to Mannheimia haemolytica and Pasteurella multocida in Camelids from Argentina [PDF]

, 2017
South American camelids are a source of livestock wealth in Andean countries. In Argentina,there is little information about camelid pathogens, and most of the literature data available areseroprevalence works against virus.
Calcagno, M. L., Canellada, Andrea Mercedes, Castro, Marisa Silvia, Díaz, Ailén Magalí, Ledesma, Martin Manuel, Leoni, Juliana, Manghi, Marcela Alejandra   +6 more
core  

From living to fossil: ancestral state reconstruction of leaf architecture in extant Lauraceae and its relevance for the fossil record

Palaeontology, Volume 69, Issue 3, May/June 2026.
Abstract Lauraceae are a tropical–subtropical angiosperm family that exhibit significant diversity and a rich fossil record, primarily of leaves found worldwide from the Cretaceous to the present. However, the taxonomic placement of many fossil leaves remains uncertain because of morphological convergence and limited variation in leaf characters among ...
Marco A. Rubalcava‐Knoth, Angélica Quintanar‐Castillo, Ana L. Hernández‐Damián, Sergio R. S. Cevallos‐Ferriz   +3 more
wiley   +1 more source

Analysis of a unique Clostridium botulinum strain from the Southern hemisphere producing a novel type E botulinum neurotoxin subtype

BMC Microbiology, 2012
Background Clostridium botulinum strains that produce botulinum neurotoxin type E (BoNT/E) are most commonly isolated from botulism cases, marine environments, and animals in regions of high latitude in the Northern hemisphere. A strain of C.
Raphael Brian H, Lautenschlager Matthew, Kalb Suzanne R, de Jong Laura I T, Frace Michael, Lúquez Carolina, Barr John R, Fernández Rafael A, Maslanka Susan E   +8 more
doaj   +1 more source

Polychaetes Aquaculture: Global Successes and Opportunities for Development in Latin America

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
A systematic review, conducted in accordance with the PRISMA guidelines, synthesises global advances in polychaetes aquaculture and evaluates their implications for sustainable development in Latin America. Evidence from leading producer countries shows that there are many different applications in areas such as aquafeed and bioremediators (IMTA ...
Melissa Herrera‐Perez, Agustina Ferrando   +1 more
wiley   +1 more source