Results 61 to 70 of about 29,281 (226)

Landscape heterogeneity influences on sheep habits under extensive grazing management in Southern Patagonia [PDF]

open access: yes, 2015
In Southern Patagonia, continuous grazing with fixed stocking rates in large paddocks prevails over grazing systems subjected to regular evaluations and rotational rests.
Peri, Pablo Luis
core  

A uniform isotopic and chemical signature of dust exported from Patagonia: Rock sources and occurrence in southern environments [PDF]

open access: yes, 2007
Patagonia is considered to be the most important source of dust from South America that is deposited in surrounding areas, and we present here a systematic Sr and Nd isotopic study of sediment currently being exported.
Brunet, Frédéric   +3 more
core   +3 more sources

Southern South American Dust Inputs to the South Atlantic and Southern Oceans: Trace Element Solubility and Deposition Fluxes

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract Southern South America (SSA) is an important source of dust, and its associated micronutrient trace elements, to the waters of the Southern Ocean. As part of the UK contribution to the International GEOTRACES program, an aerosol sampling site (Carcass Island) was established in the western Falkland (Malvinas) Islands, downwind of dust sources ...
Rosie Chance   +2 more
wiley   +1 more source

Population biology of the sea star Anasterias minuta (Forcipulatida: Asteriidae) threatened by anthropogenic activities in rocky intertidal shores of San Matías Gulf, Patagonia, Argentina [PDF]

open access: yes, 2017
In Patagonian coastal areas, intertidal benthic communities are exposed to extreme physical conditions. The interaction between harsh environment and anthropogenic pressure can generate changes in population biology of marine invertebrates, like density ...
Arribas, Lorena Pilar   +3 more
core   +1 more source

Nódulos de Schmorl en Restos Humanos Arqueológicos de Patagonia Austral [PDF]

open access: yesMagallania (Punta Arenas), 2014
RESUMENLos nodulos de Schmorl (NS) son herniaciones del nucleo pulposo de los discos intervertebrales dentro de los cuerpos vertebrales adyacentes. Las causas de su desarrollo son parcialmente comprendidas, asociadas a factores morfologicos, degenerativos, traumaticos y metabolicos, mientras el rol de su interpretacion como indicador de actividad ...
openaire   +4 more sources

Emergence, spread, and impact of high‐pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Thijs Kuiken   +9 more
wiley   +1 more source

Attenuation by clouds of UV radiation for low stratospheric ozone conditions [PDF]

open access: yes, 2016
Stratospheric poor ozone air masses related to the polar ozone hole overpass subpolar regions in the Southern Hemisphere during spring and summer seasons, resulting in increases of surface Ultraviolet Index (UVI).
D'elia, Raul Luis   +6 more
core   +1 more source

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Sedimentology and fluvial styles of the uppermost Cretaceous continental deposits of the Austral-Magallanes Basin, Patagonia, Argentina [PDF]

open access: yes, 2018
The sedimentary infill of the Austral-Magallanes Basin since the onset of its foreland stage in the Lago Argentino region is dominated by deep-marine and coastal deposits. However, during the Late Cretaceous the basin accumulated a thick and poorly known
Cereceda, Abril   +7 more
core   +1 more source

Macraucheniidae y Proterotheriidae (Mammalia, Litopterna) de Quebrada Fiera (Oligoceno tardío), Mendoza, Argentina [PDF]

open access: yes, 2019
In this contribution we present new specimens of Litopterna recovered during the last decade in Quebrada Fiera (Mendoza Province, Argentina), whose fossiliferous sediments, currently recognized as the base of Agua de la Piedra Formation, are assignable ...
Cerdeño Serrano, Maria Esperanza   +2 more
core   +1 more source

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