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Artículo

Of volcanoes and insects: the impact of the Puyehue-Cordon Caulle ash-fall on populations of invasive social wasps, Vespula spp.

Masciocchi, MaitéIcon ; Pereira, Ana JuliaIcon ; Lantschner, María VictoriaIcon ; Corley, Juan CarlosIcon
Fecha de publicación: 03/2013
Editorial: Springer Tokyo
Revista: Ecological Research
ISSN: 0912-3814
e-ISSN: 1440-1703
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

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 insect mortality through the effects of the ash plume, and these vary by taxon or specific biological features. The Puyehue-Cordon Caulle Volcanic Complex is the most recent eruption in Patagonia. Here we explore and describe the effects of the eruption of this volcanic complex on invasive Vespula spp. populations. These wasps are very abundant social hymenoptera that have recently invaded Patagonia. We placed baited traps following the gradient of deposited ash, and revisited them once a week during February to April. No wasps were caught where ash deposition levels exceeded 3.0 cm. The number of wasps caught in sites with minimal ash deposits was similar to that of previous years. In locations where ash layers are intermediate a few wasps were observed, but only during the peak of wasp abundance. We show that Vespula spp. populations were severely affected by the ash deposition and plume, caused by this eruption. These results show catastrophic effects of ash deposition over a large area, even at great distances from the eruption epicenter. We conclude that wasp mortality explained by the volcanic eruption may reach distant areas, and cause local extinction. In areas where active volcanoes are a common, invasive insects may encounter an additional obstacle in their invasion success.
Palabras clave: Yellowjackets , Insects , Exotic , Ash Deposition , Patagonia , Argentina
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/21914
URL: http://link.springer.com/article/10.1007%2Fs11284-012-1004-y
DOI: http://dx.doi.org/10.1007/s11284-012-1004-y
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Masciocchi, Maité; Pereira, Ana Julia; Lantschner, María Victoria; Corley, Juan Carlos; Of volcanoes and insects: the impact of the Puyehue-Cordon Caulle ash-fall on populations of invasive social wasps, Vespula spp.; Springer Tokyo; Ecological Research; 28; 2; 3-2013; 199-205
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