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Artículo

Effects of fire severity on early recovery of Patagonian steppes

Ghermandi, LucianaIcon ; Gonzalez, Sofia LauraIcon ; Lescano, Natalia EmilceIcon ; Oddi, Facundo JoséIcon
Fecha de publicación: 08/2013
Editorial: Csiro Publishing
Revista: International Journal Of Wildland Fire
ISSN: 1049-8001
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

Fire severity influences the recovery and biodiversity of plant communities. We compared the early post-fire recovery of plant functional groups in two sites (one burnt with high severity and one with low severity) in the northwestern Patagonian steppe.We sampled the post-fire soil seed banks, as well as the composition and cover of aboveground plant species, and calculated richness, diversity and the percentage of exotic species. Low fire severity increased the diversity of aboveground vegetation and seed banks, whereas high fire severity reduced the cover of all functional groups, with the exception of fugitive species. Tiller production of perennial grasses decreased due to bud bank mortality. In the seed bank, high severity fire reduced fugitive species and increased exotic species. Fugitive species need fire to recruit, and the combination of fire cues and post-fire environmental conditions can explain the high abundance of these species after fire. In Patagonia, the use of fire is not considered a management option because fires are believed to be dangerous to humans, goods and services. However, north-western Patagonia is sparsely populated and the frequent wildfires pose no danger. It is necessary to increase the knowledge of the ecological processes of Patagonian ecosystems related to fire regime and land use, to achieve a reasonable balance between sustainable use and conservation in this region.
Palabras clave: Fugitive Species , Functional Groups , Seed Bank , Semi-Arid Grasslands
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info:eu-repo/semantics/openAccess 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/11336/6753
DOI: http://dx.doi.org/ 10.1071/WF12198
DOI: http://dx.doi.org/10.1071/WF12198
URL: http://www.publish.csiro.au/?paper=WF12198
Colecciones
Articulos(INIBIOMA)
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Citación
Ghermandi, Luciana; Gonzalez, Sofia Laura; Lescano, Natalia Emilce; Oddi, Facundo José; Effects of fire severity on early recovery of Patagonian steppes; Csiro Publishing; International Journal Of Wildland Fire; 22; 8; 8-2013; 1055-1062
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