Results 21 to 30 of about 1,489 (184)

Guanaco colonisation of Tierra del Fuego Island from mainland Patagonia: Walked, swam, or by canoe?

open access: yesGeo: Geography and Environment, Volume 9, Issue 2, July‐December 2022., 2022
A geographical and biological puzzle that has perplexed scientists since the late 1800s working in southern South America: why are there so few vertebrates on the island of Tierra del Fuego compared to the adjacent Patagonia mainland, including the absence of the ubiquitous Guanaco (Lama guanicoe), wild camelid of the south? An interdisciplinary search
William L. Franklin
wiley   +1 more source

Mammalia, Didelphimorphia and Rodentia, southwest of the province of Mendoza, Argentina [PDF]

open access: yes, 2008
We documented terrestrial micromammal assemblages at five localities of southwestern Mendoza province, Argentina. We added new localities for several of the most uncommon small mammal species of this region (e.g.
Pardiñas, Ulises Francisco J.   +2 more
core   +2 more sources

Mounting a specific immune response increases energy expenditure of the subterranean rodent Ctenomys talarum (tuco-tuco): Implications for intraspecific and interspecific variation in immunological traits [PDF]

open access: yes, 2010
It was recently hypothesised that specific induced defences, which require substantial time and resources and are mostly beneficial against repeated infections, are more likely to be favoured in 'slow-living-pace' species.
Antenucci, Carlos Daniel   +3 more
core   +1 more source

Genome‐wide adaptive evolution to underground stresses in subterranean mammals: Hypoxia adaption, immunity promotion, and sensory specialization

open access: yesEcology and Evolution, Volume 10, Issue 14, Page 7377-7388, July 2020., 2020
We download and evaluate the whole genome of subterranean mammals, and study the mechanisms of adaptative evolution to underground stresses of subterranean mammals through comparative genomics. Abstract Life underground has provided remarkable examples of adaptive evolution in subterranean mammals; however, genome‐wide adaptive evolution to underground
Mengwan Jiang   +10 more
wiley   +1 more source

Хромосомы и видообразование у туко-туко (Ctenomys, Hystricognathi, Rodentia) [PDF]

open access: yes, 2016
Tuco-tucos, South American rodents of the genus Ctenomys represent an interesting model of speciation. Their strict territorial and solitary life under the earth, vast but highly fragmented habitats, low migration activity were the causes of their very ...
Borodin, Pavel M.   +4 more
core   +2 more sources

Human Processing of Rodents in Patagonia: The Relevance of Historical and Ethnographical Data for Archaeological Interpretations [PDF]

open access: yes, 2019
The consumption of small mammals was a widespread practice between indigenous societies worldwide. Modern taphonomic studies carried out upon bone assemblages from archaeological sites in northern Patagonia (Argentina) demonstrate thatCaviomorph rodents ...
Andrade, Analia
core   +1 more source

ACTIVITY PATTERNS IN A SUBTERRANEAN SOCIAL RODENT, SPALACOPUS CYANUS (OCTODONTIDAE) [PDF]

open access: yesJournal of Mammalogy, 2002
Daily patterns of activity were studied under laboratory conditions in 12 coruros, Spalacopus cyanus, subterranean social rodents originally from Chile. When able to burrow, coruros spent 90% of the total time underground, and surface activity occurred during the 1st hours of darkness. When prevented from burrowing, locomotory activity of coruro groups
Begall, Sabine   +3 more
openaire   +3 more sources

Neuronal Density in Primary Visual Cortex (17 Visual Area), in Two Species of Octodon [PDF]

open access: yes, 2010
Indexación: ScieloEstudios experimentales demuestran que modificaciones medioambientales pueden producir alteraciones en el desarrollo normal de la corteza cerebral visual y sus conexiones.
Aboitiz, F.   +4 more
core   +1 more source

Postcranial skeleton of Spalacopus cyanus (Rodentia: Octodontidae): description and functional aspects [PDF]

open access: yesTherya, 2020
The genus Spalacopus includes only one species, S . cyanus , endemic to central Chile and one of the species best adapted to a subterranean lifetyle in the family Octodontidae.  It is a member of the lineage consisting in Octodontomys as a sister clade containing Octodon and of a clade represented by Spalacopus and Aconaemys .
Pérez, María Julieta   +1 more
openaire   +3 more sources

Mammals from the Salicas formation (Late Miocene), La Rioja Province, northwestern Argentina : Paleobiogeography, age, and paleoenvironment [PDF]

open access: yes, 2012
Fil: Brandoni, Diego. Laboratorio de Paleontología de Vertebrados. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Diamante; ArgentinaFil: Schmidt, Gabriela I.. Laboratorio de Paleontología de Vertebrados.
Brandoni, Diego   +5 more
core   +1 more source

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