Browsing by Title Artículos de revistas
Now showing items 2534-2553 of 4966
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(Elsevier B.V., 2016)© 2016 Elsevier B.V. We present a reconstruction of environmental changes from sediments of high-altitude Laguna Chepical in the subtropical Andes of Central Chile (32°16′S; 70°30′W, 3050 m a.s.l.) for the past 3100 years. ...
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(Asociacion Paleontologica Argentina, 2015)A description is provided of the first sauropod remains (i.e., isolated vertebrae and appendicular bones) from the Late Jurassic of Aysen, in Chilean Patagonia (Toqui Formation, late Tithonian). Although the bones found ...
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(Wiley, 2015)Aim In deserts, past climate change (and particularly past rainfall variability) plays a large role in explaining current plant species distributions. We ask which species were most and which were least affected by changes ...
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(1991)Fossil beetles and pollen were examined from an intermorainal bog at Puerto Edén, Isla Wellington, Chile (latitude 49°08'S, longitude 74°25'W). Wood from near the base of the section has an age of 12 960 ± 150 yr BP. ...
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(2006)Plant macrofossils from 33 rodent middens sampled at three sites between 2910 and 3150 m elevation in the main canyon of the Río Salado, northern Chile, yield a unique record of vegetation and climate over the past 22,000 ...
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(1988)Late-glacial-Holocene forest history of southern Isla Chiloé (latitude 43°10′ S) was reconstructed on the basis of pollen analysis in three profiles (Laguna Soledad, Laguna Chaiguata, Puerto Carmen). Prior to 12,500 yr ...
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(Archivos Latinoamericanos Nutricion, 2014)The Latin American Network of Food Composition Data System (LATINFOODS) is the regional data center of the global network "International Network on Food Data Systems" (INFOODS) co-sponsored by the Food and Agriculture ...
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(Springer, 2020)Latitudinal diversity patterns in marine species are commonly estimated from literature records, which at times are incomplete and/or biased. Advances in molecular phylogenetics have contributed to avoid this bias, clarifying ...
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(Elsevier, 2020)Human-dominated environments alter the availability and quality of resources for many species, especially for scavengers that have large home ranges and plastic foraging behaviors that enable them to exploit novel resources. ...
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(Springer, 2020)New composites formed by layered hybrid TiO2(stearic acid) (LHTiO2) and, Cu2O nanoparticles were studied as photocatalysts that extend the response range to light visible for the evolution of hydrogen and the degradation ...
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(Cambridge University Press, 2019)For a large family of properties of homogeneous spaces, we prove that such a property holds for all homogeneous spaces of connected linear algebraic groups as soon as it holds for homogeneous spaces of SLn with finite ...
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(American Chemical Society, 1981-11-20)The seeds of Sophora mcrcrocarpo Sm. (Fabaceae) are a promising source of edible oil (l), and contain matrine, N-methylcytisine and baptifoline (2). Glc analyses of the leaves of this species suggested that matrine is ...
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(Copernicus Gesellschaft MBH, 2018)Pouteria splendens (A. DC.) Kuntze, the Chilean lucumo, is an endemic tree and the only member of the Sapotaceae family in Chile. It is considered an endangered species as a consequence of its restricted distribution and ...
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(2007)Fragmentation of the Maulino forest implies significant habitat loss, as well as the modification of the microclimatic conditions of the remaining forest patches. Fragments are drier, hotter and receive more light than the ...
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(CAMBRIDGE UNIV PRESS, 2008-04)We consider Ledrappier's dynamical system, which was the first example of a Z(2)-action which is 2-mixing but not 3-mixing. Our main result is that, excluding certain small 'constructible' sets, the system is mixing of ...
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(2011)During tissue morphogenesis and differentiation, cells must self-renew while contemporaneously generating daughters that contribute to the growing tissue. How tissues achieve this precise balance between proliferation and ...
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(Taylor & Francis, 2021)Two genera of fish, Orestias (Cyprinodontidae) and Trichomycterus (Trichomicteridae), inhabit in the Lauca National Park, UNESCO Biosphere Reserve, located at the Andes highlands in northern Chile. The present study ...
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(Elsevier B.V., 2016)© 2015 The Authors.Forests worldwide are threatened by various environmental and anthropogenic hazards, especially tropical forests. Knowledge on the impacts of these hazards on forest structure and dynamics has been ...
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(Pensoft, 2020)A new species, Leucheria cantillanensis sp. nov., endemic to the coastal mountain range of Central Chile, is described. By using both nDNA and cpDNA, phylogenetic relationships of the new species were investigated. This ...
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(Springer, 2014)A basidiomycetous yeast, strain E2A-C3- II, was isolated from a marine sponge (Hymeniacidon sp.) collected at a depth of 6 m in Fildes Bay, King George Island, Antarctica. The phylogenetic analysis revealed that the ...
