Results 1 to 10 of about 124,794 (226)

Hypercarnivorous apex predator could provide ecosystem services by dispersing seeds [PDF]

open access: yes, 2016
Large ?hypercarnivorous? felids are recognized for their role as apex predators and hence as key elements in food webs and ecosystem functioning through competition and depredation.
Costan, Andrea Silvina   +3 more
core   +1 more source

The fluctuating resource hypothesis explains invasibility, but not exotic advantage following disturbance [PDF]

open access: yes, 2018
Invasibility is a key indicator of community susceptibility to changes in structure and function. The fluctuating resource hypothesis (FRH) postulates that invasibility is an emergent community property, a manifestation of multiple processes that cannot ...
Cock, Marina Cecilia   +6 more
core   +2 more sources

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+1 more source

Glyphosate and AMPA concentrations in wind-blown material under field conditions [PDF]

open access: yes, 2018
Agricultural intensification in fragile arid and semiarid environments has led to an increase in soil degradation, mainly through wind erosion. Argentina is an agricultural and cattle-farming country, which has increased its productivity in the last few ...
Aimar, Silvia Beatriz   +4 more
core   +1 more source

Chloroquine plays a cell-dependent role in the response to treatment of pancreatic adenocarcinoma [PDF]

open access: yes, 2018
In this study, our aim is to assess the role played by autophagy and its inhibition in the different PDAC cellular compartments, and its involvement in chemo-resistance using primary human pancreatic cancer-derived cells (PCC) and Cancer Associated ...
Bintz, Jennifer   +6 more
core   +1 more source

Características palinológicas y fisicoquímicas de tres tipos de mieles uniflorales del centro de Argentina [PDF]

open access: yes, 2006
Se estudiaron las características de 59 mieles monoflorales de Condalia microphylla Cav. (“piquillín”), Centaurea solstitialis L. (“abrepuño amarillo”) y Prosopis spp., provenientes de La Pampa, Argentina. Se determinaron caracteres polínicos (abundancia
Naab, O.A.   +2 more
core   +2 more sources

Are Local Filters Blind to Provenance? Ant Seed Predation Suppresses Exotic Plants More than Natives [PDF]

open access: yes, 2014
The question of whether species’ origins influence invasion outcomes has been a point of substantial debate in invasion ecology. Theoretically, colonization outcomes can be predicted based on how species’ traits interact with community filters, a process
Bird, Benjamin B.   +3 more
core   +5 more sources

Lithospheric 3D gravity modelling using upper-mantle density constraints: Towards a characterization of the crustal configuration in the North Patagonian Massif area, Argentina [PDF]

open access: yes, 2017
The North Patagonian Massif is an Argentinean plateau that has an average height of 1200 m and stands from 500 to 700 m above the neighboring areas. During Paleogene, it suffered a sudden uplift of more than 1200 m without noticeable internal deformation;
Aragon, Eugenio   +5 more
core   +2 more sources

Systematic Characterization of Gas Phase Binary Pre-Nucleation Complexes Containing H2SO4 + X, [ X = NH3, (CH3)NH2, (CH3)2NH, (CH3)3N, H2O, (CH3)OH, (CH3)2O, HF, CH3F, PH3, (CH3)PH2, (CH3)2PH, (CH3)3P, H2S, (CH3)SH, (CH3)2S, HCl, (CH3)Cl)]. A Computational Study [PDF]

open access: yes, 2018
A systematic characterization of gas phase binary prenucleation complexes between H2SO4 (SA) and other molecules present in the atmosphere (NH3, (CH3)NH2, (CH3)2NH, (CH3)3N, H2O, (CH3)OH, (CH3)2O, HF, CH3 F, PH3, (CH3)PH2, (CH3)2PH, (CH3)3P, H2S, (CH3)SH,
Cometto, Pablo Marcelo   +2 more
core   +1 more source

Evaluación de indicadores biológicos en suelos de la región semiárida pampeana central

open access: yesEcología Austral, 2018
En la región semiárida pampeana aún no se han usado indicadores biológicos para valorar cambios en la calidad del suelo relacionados con el uso de la tierra.
Romina Fernández   +4 more
doaj   +1 more source

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