Fire as mediator of pine invasion: evidence from Patagonia, Argentina

Authors
Raffaele, Estela; Nuñez, Martin Andres; Eneström, J.; Blackhall, Melisa
Publication Year
2016
Language
English
Format
article
Status
Published version
Description
Fire has been found to promote or halt biological invasions. Pine trees (genus Pinus) are highly invasive in the southern hemisphere and the effect of fire on their invasion ability is not clear. An analysis of Pinus spreading after wildfires in Patagonia reveals that there is a high risk of pines becoming invasive if ignition frequency increases in Patagonia. Also plantations could increase fire intensity and/or frequency in Patagonia, creating a potential positive feedback between invasion and wildfires. The effect of fires on pine invasion was modulated by precipitation. In areas where precipitation was lower than 800 mm fires did not promote pine invasion. However, in areas with higher precipitation there was a strong promotion of pine invasion by fire, after a lag time. These results show that fire, a disturbance more frequent now in the region, can promote pine invasion.
Fil: Raffaele, Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Nuñez, Martin Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Eneström, J.. Lund University; Suecia
Fil: Blackhall, Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Subject
PINE PLANTATIONS
PRECIPITATION GRADIENT
SPREADING
TIME LAG
TREE INVASIONS
WILDFIRES
Otras Ciencias Biológicas
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/60821