Browsing by Title Facultad de Ciencias
Now showing items 3618-3637 of 8178
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(Academic Press-Elsevier, 2016)Endemic to South America, octodontid rodents are remarkable by being the only mammal taxa where allotetraploidy has been documented. The taxon's extensive morpho-physiological radiation associated to niche shifts has allowed ...
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(Universidad de Chile, 1997)Thinocoridae es un grupo de Charadriiformes que habita exclusivamente en Suramérica. Esta familia posee dos géneros y cuatro especies, Thinocorus rumicivorus, T. orbignyianus, Attagis malouinus y A. gayi. Las relaciones ...
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(Universidad de Chile, 1997)
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(Universisdad de Chile, 2009)La terciopelo, Bothrrrops asper, es una serpiente venenosa criptica que se distribuyen ampliamente húmedos de Mesoamerica y en el noroccidente de América de Sur. A través de su rango de distribución, B. asper presenta una ...
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(Universisdad de Chile, 2015)Las oscilaciones climáticas del pleistoceno, y en particular los eventos glaciales, han afectado la diversidad genética y la historia evolutiva de la biota en los hemisferios Norte y Sur. Estos drásticos eventos provocaron ...
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(Universidad de Chile, 2015)Gran parte de las especies de invertebrados marinos bentónicos se caracterizan por poseer ciclos de vida complejos, que incluyen fases larvarias planctónicas, siendo la presencia de esta fase la que les confiere potencial ...
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(Universidad de Chile, 2010)Las características estructurales y el patrón de distribución actual de los Bosques Templado Lluviosos del sur de Sudamérica se encuentran vinculados a las contracciones de área durante las glaciaciones del Pleistoceno. ...
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(Universidad de Chile, 2017)Orestias agassii Valenciennes 1846, es la especie de peces del género Orestias, de mayor distribución del género en el Altiplano, abarcando desde el norte del lago Titicaca (Perú) hasta el sur del salar de Uyuni (Bolivia). ...
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(Universidad de Chile, 2011)En esta tesis se puso a prueba la hipótesis del refugio glacial, utilizando como modelo de estudio filo geográfico Weinmannia trichosperma, especie del bosque Nordpatagonico de amplia distribución con tolerancia a condiciones ...
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(Sociedad de Biología de Chile, 2008-06)During the last decades, limnological studies on Chilean systems have contributed to know the species composition and main environmental variables of many water bodies distributed over a wide latitudinal interval, from ...
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(Oxford University Press, 2015)
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(Oxford Univ Press, 2015)
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(Springer-Verlag, 2012)The Southern Ocean benthic communities are characterized by their levels of endemism and their diversity of invertebrate brooding species. Overall, biological processes acting within these species remain poorly understood ...
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(ELSEVIER, 2011-04-01)An earthquake network is known to be of the small-world type. The values of the network's characteristics, however, depend not only on the cell size (i.e., the scale of coarse graining needed for constructing the network) ...
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(DIRICHLET SERIES, 2008-01)The product ((Pi) over cap (m) a(m)) . ((Pi) over cap (m)b(m)) of two regularized products is not in general equal to the regularized product (Pi) over cap (m) (a(m) . b(m)) We consider the discrepancy F, defined by exp(F):= ...
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(Springer Science+Business Media Dordrecht, 2013-03-27)The geometric and the electronic structures, the magnetic moments, and the magnetocrystalline anisotropy energy of bcc-Fe nanowires with z-axis along the (110) direction are calculated in the framework of ab initio ...
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(2011)We analyzed the statistical distribution of intra-specifi c local abundances for a set North American breeding bird species. We constructed frequency plots for every species and found that they showed long-tail power-law ...
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(2008)We give a cohomological characterization of the set of conjugacy classes of finite subgroups of the projective multiplicative group of a finite dimensional algebra that become conjugate to a given group over some finite ...
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(Frontiers Media, 2018-07-03)Despite decades of broad interest in global patterns of biodiversity, little attention has been given to understanding the remarkable levels of plant diversity present in the world's five Mediterranean-type climate (MTC) ...
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(2012)Paleogene records of birds in the Eastern margin of the Pacific Ocean have increased in recent years, being almost exclusively restricted to fossil Sphenisciformes (penguins). New avian remains (Ornithurae, Neornithes) ...