Buscar
Mostrando ítems 181-190 de 225
Atmospheric controls on hydrogen and oxygen isotope composition of meteoric and surface waters in Patagonia
(European Geosciences Union, 2018-08-24)
The southern tip of South America, commonly referred to as Patagonia, is a key area to understand SouthernHemisphere Westerlies (SHW) dynamics and orographic isotope effects in precipitation. However, only few studies ...
Transformaciones en territorios turísticos de norpatagonia asociadas al extractivismo
El artículo propone describir a partir de experiencias desarrolladas en la cordillera norpatagónica, el modo en que se desarrolla el turismo y su relación con las formas en las que se expresa el extractivismo.
Para ello ...
Two new species segregated from Hymenophyllum tunbrigense (Hymenophyllaceae) in southern South America, based on morphological, anatomical, molecular and distributional evidence
(Magnolia Press, 2017-04)
La especie cosmopolita Hymenophyllum tunbrigense ha sido tradicionalmente considerada para el sur de Sudamérica con dos variedades alopátricas: H. tunbrigense var. tunbrigense en los bosques andino-patagónicos de Argentina ...
An alternative model for the early peopling of Southern South America revealed by analyses of three mitochondrial DNA haplogroups
(Public Library of Science, 2012-09)
After several years of research, there is now a consensus that America was populated from Asia through Beringia, probably at the end of the Pleistocene. But many details such as the timing, route(s), and origin of the first ...
The structure of the northern Austral Basin: Tectonic inversion of mesozoic normal faults
(Pergamon-Elsevier Science Ltd, 2019-10)
This paper analyzes the style, distribution, mechanics, and timing of deformation of the Andean retroarc zone between 47° and 50°S, in the southern Patagonian Andes during the Mesozoic times. This northern sector of the ...
Modelling the consequence of glacier retreat on mixotrophic nanoflagellate bacterivory: a Bayesian approach
(Wiley, 2020-04)
Mixotrophic nanoflagellate bacterivory is affected by light; however, in glacially influenced lakes, glacial clay may also interfere with prey uptake. Mechanistic models based on prior quantitative hypotheses and tested ...
Effect of ultraviolet radiation on clearance rate of planktonic copepods with different photoprotective strategies
(Wiley VCH Verlag, 2019-03-03)
We studied two populations of Boeckella gracilipes and two populations of Boeckella gibbosa that inhabit mountain lakes from North-Patagonian Andes with different optical properties. We combined field and laboratory ...
Maqui (Aristotelia chilensis [Mol.] Stuntz) morphological and phenolic traits associated with forests type and latitudinal gradient in natural populations of Patagonia Argentina
(Elsevier Gmbh, 2021-12)
Maqui (Aristotelia chilensis [Mol.] Stuntz) is a native berry of the Patagonia Andean forests, which has one of the highest antioxidant levels currently known. This biochemical characteristic strongly depends on the phenolic ...
Regional flood frequency analysis in the central-western river basins of Argentina
(John Wiley & Sons Ltd, 2018-09)
Knowing the probability of occurrence of a flood event is an important issue for water resources planning. At-site probability models require a long extension of hydrological data for robust estimation of low-frequency ...