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Mostrando ítems 1-15 de 15
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Aeolian Remobilisation of the 2011-Cordón Caulle Tephra-Fallout Deposit: Example of an Important Process in the Life Cycle of Volcanic Ash
(Frontiers Media SA, 2020-01-14)Although volcanic eruptions represent short periods in the whole history of a volcano, the large amount of loose pyroclastic material produced, combined with aeolian processes, can lead to continuous, long-lasting reworking ... -
Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
(2018)The 2011–2012 Cordón Caulle eruption emitted about 1 km3 of rhyodacitic tephra. Dominant westerly winds in the region caused most of the primary tephra to deposit in neighboring Argentina. In addition to the impact of ... -
Ashes in the air : the effects of volcanic ash emissions on plant-pollinator relationship and possible consequences for apiculture
(2013-05)El rendimiento de forrajeo de los polinizadores podría ser alterado por las flores de cenizas volcánicas contaminados, polen y néctar. Se utilizó la abeja melífera (Apis mellifera) como organismo modelo para comprender los ... -
Assessing the magnitude of impact of volcanic ash deposits on Merino wool production and fibre traits in the context of a drought in North-west Patagonia, Argentina
(CSIRO Publishing, 2014-02)Environmental variability is a key feature of arid and semiarid rangelands worldwide. Drought is one of the main sources of variation in most extensive livestock production systems in arid environments, with biophysical ... -
Cumulative effects of volcanic ash on the food preferences of 2 Orthopteran species
(2017)Los polvos inertes son una forma temprana de insecticida que todavía está en uso. Uno de los polvos inertes más comunes es la ceniza volcánica. Con el fin de estudiar la reacción de saltamontes de pastizales, Dichroplus ... -
Effect of volcanic ash over Orthoptera survival in Patagonia
(2015-04)The aim of this work was to evaluate the ash toxicity from the Puyehue-Cordón Caulle volcanic complex on the survival of two Orthopteran species: the grasshoper Dichroplus vittigerum and the green locust Brugilis sp. Two ... -
First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest
(Florida Entomological Society, 2014-06)Host plants of phytophagous insects are not equally attractive. The aim of this study was to evaluate the host-plant behavior of Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) and determine which parameters ... -
Immobilization and stabilization of volcanic ash in soil aggregates in semiarid meadows of Northern Patagonia
(Elsevier, 2021-06-15)Although volcanism may be perceived by the society as a phenomenon with mostly negative consequences, this is not always the case especially for natural systems. There is a limited knowledge on how the deposited pristine ... -
Neoformation of soil aggregates after a volcano eruption in meadows of Northern Patagonia, Argentina
(2018-08-12)In June 2011, a natural event occurred in Patagonia, Argentina: The “Puyehue-Cordón Caulle” volcanic complex erupted, and particles from tephras (1-5cm) to very fine volcanic ash (44-500?m) where deposited in the direction ... -
Of volcanoes and insects: the impact of the Puyehue–Cordon Caulle ash fall on populations of invasive social wasps, Vespula spp.
(2013-03)Las erupciones volcánicas tienen importantes efectos en los ecosistemas terrestres. Los efectos bióticos de ceniza volcánica en las poblaciones de insectos varian de un generalizado y catastróficoa lo sutil y localizada. ... -
Rise from the ashes! Resilience patterns in Patagonia pastoralist communities
(Wiley, 2023-07)Pastoral household resilience is shaped by the interplay between human agency and community resilience mechanisms. As a major component of pastoral household livelihoods, livestock can serve as an indicator to characterize ... -
Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics
(2018-03)Volcanic ash fallout is a recurrent environmental disturbance in forests, arid and semi-arid rangelands of Patagonia, South America. The ash deposits over large areas are responsible for several impacts on ecological ... -
The effects of volcanic ash from Puyehue-Caulle range eruption on the survival of Dichroplus vittigerum (Orthoptera: Acrididae)
(2013-03)The aim of this work was to evaluate the toxicity of volcanic ash from the volcanic complex Puyehue-Caulle Range on the grasshopper, Dichroplus vittigerum, and compare the results with the effect of diatomaceous earth, an ... -
The influence of local environmental and socio-economic conditions on the impacts of ash storms
(2018-09-02)Volcanic ash wind-induced remobilization events have increasingly been reported in different areas around the worl during the last decades -
Tormentas de ceniza volcánica en Patagonia : un peligro latente y subestimado
(2018-04)Una tormenta de ceniza volcánica puede definirse como un evento de remobilización masiva de ceniza volcánica (<2mm) a partir de la acción eólica (via suspensión, saltación y reptaje). Pero, ¿a qué nos referimos exactamente ...