Buscar
Mostrando ítems 3071-3080 de 8337
Variability in seedling emergence traits of Patagonian Cypress marginal steppe populations
(Springer, 2013-10)
Genetic information on adaptive traits is crucial for prediction of the evolution of natural populations in relation to global climate change. The seedling emergence process together with germination is a key adaptive stage ...
Effects of agriculture expansion and intensification on the vertebrate and invertebrate diversity in the Pampas of Argentina
(Springer, 2011-07)
In this paper we summarize for the first time the effects of agriculture expansion and intensification on animal diversity in the Pampas of Argentina and discuss research needs for biodiversity conservation in the area. ...
Amphibian conservation, land-use changes and protected areas: A global overview
(Elsevier, 2015-11)
Amphibians are undergoing a global conservation crisis, and they are one of the most underrepresented groups of vertebrates in the global network of protected areas (PAs). In this study, we evaluated the ability of the ...
Neuropharmacology of memory consolidation and reconsolidation: insights on central cholinergic mechanisms
(Elsevier, 2014-12)
Central cholinergic system is critically involved in all known memory processes. Endogenous acetylcholine release by cholinergic neurons is necessary for modulation of acquisition, encoding, consolidation, reconsolidation, ...
On the similarity among bird communities: Testing the influence of distance and land use
(Elsevier Masson, 2010-05)
The search for mechanisms determining community composition is currently in the core of ecological research. Human land use may promote species invasions or local extinctions by altering the environmental conditions, which ...
Walk before you jump: New insights on early frog locomotion from the oldest known salientian
(Paleontological Society, 2016-11)
Understanding the evolution of a Bauplan starts with discriminating phylogenetic signal from adaptation and the latter from exaptation in the observed biodiversity. Whether traits have predated, accompanied, or followed ...
La Justicia Ordinaria después del Cabildo en Santa Fe (Argentina) Diseño normativo y esbozo prosopográfico de jueces (1833-1852)Justice of first instance following the Cabildo of Santa Fe (Argentina) : regulatory framework and prosopography of judges, 1833-1852
(Universidad Pablo de Olavide, 2016-07)
En 1833 se sancionó en la provincia de Santa Fe un reglamento de justicia que estableció los agentes y las funciones que reemplazarían al Cabildo recientemente extinguido. Este trabajo reconstruye la designación en los ...
Of volcanoes and insects: the impact of the Puyehue-Cordon Caulle ash-fall on populations of invasive social wasps, Vespula spp.
(Springer Tokyo, 2013-03)
Volcanic eruptions have important effects on terrestrial ecosystems. The biotic effects of volcanic ash on insect populations vary from widespread and catastrophic to subtle and localized. Volcanic eruptions may increase ...
Vegaviidae, a new clade of southern diving birds that survived the K/T boundary
(Springer, 2017-10)
The fossil record of Late Cretaceous-Paleogene modern birds in the Southern Hemisphere includes the Maastrichtian Neogaeornis wetzeli from Chile, Polarornis gregorii and Vegavis iaai from Antarctica, and Australornis lovei ...
Context-dependent latent inhibition in preweanling rats
(John Wiley & Sons Inc, 2014-11)
Preexposure to a conditioned stimulus (CS) usually weakens conditioning, an effect known as latent inhibition. Similar to other learning interference effects, latent inhibition has been characterized as context-dependent, ...