Regeneration patterns and persistence of the fog-dependent Fray Jorge forest in semiarid Chile during the past two centuries
Author
dc.contributor.author
Gutiérrez, Avaro G.
Author
dc.contributor.author
Barbosa, Olga
Author
dc.contributor.author
Christie, Duncan A.
Author
dc.contributor.author
Del-Val, Ek
Author
dc.contributor.author
Ewing, Holly A.
Author
dc.contributor.author
Jones, Clive G.
Author
dc.contributor.author
Marquet, Pablo A.
Author
dc.contributor.author
Weathers, Kathleen C.
Author
dc.contributor.author
Armesto, Juan J.
Admission date
dc.date.accessioned
2018-12-20T14:11:43Z
Available date
dc.date.available
2018-12-20T14:11:43Z
Publication date
dc.date.issued
2008
Cita de ítem
dc.identifier.citation
Global Change Biology, Volumen 14, Issue 1, 2018, Pages 161-176
Identifier
dc.identifier.issn
13541013
Identifier
dc.identifier.issn
13652486
Identifier
dc.identifier.other
10.1111/j.1365-2486.2007.01482.x
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/154614
Abstract
dc.description.abstract
The persistence of rainforest patches at Fray Jorge National Park (FJNP) in semiarid Chile (30°40′S), a region receiving approximately 147mm of annual rainfall, has been a source of concern among forest managers. These forests are likely dependent on water inputs from oceanic fog and their persistence seems uncertain in the face of climate change. Here, we assessed tree radial growth and establishment during the last two centuries and their relation to trends in climate and canopy disturbance. Such evaluation is critical to understanding the dynamics of these semiarid ecosystems in response to climate change. We analyzed forest structure of six forest patches (0.2-22 ha) in FJNP based on sampling within 0.1ha permanent plots. For the main canopy species, the endemic Aextoxicon punctatum (Aextoxicaceae), we used tree-ring analysis to assess establishment periods, tree ages, growing trends and their relation to El Niño Southern Oscillation (ENSO), rainfall, and disturbance. The populatio