Establishment and formation of fog-dependent <i>Tillandsia landbeckii</i> dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes

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dc.contributor.authorLatorre, Claudio
dc.contributor.authorGonzalez, Angelica L.
dc.contributor.authorQuade, Jay
dc.contributor.authorFarina, Jose M.
dc.contributor.authorPinto, Raquel
dc.contributor.authorMarquet, Pablo A.
dc.date.accessioned2025-01-21T00:00:34Z
dc.date.available2025-01-21T00:00:34Z
dc.date.issued2011
dc.description.abstractExtensive dune fields made up exclusively of the bromeliad Tillandsia landbeckii thrive in the Atacama Desert, one of the most extreme landscapes on earth. These plants survive by adapting exclusively to take in abundant advective fog and dew as moisture sources. Although some information has been gathered regarding their modern distribution and adaptations, very little is known about how these dune systems actually form and accumulate over time. We present evidence based on 20 radiocarbon dates for the establishment age and development of five different such dune systems located along a similar to 215 km transect in northern Chile. Using stratigraphy, geochronology and stable C and N isotopes, we (1) develop an establishment chronology of these ecosystems, (2) explain how the unique T. landbeckii dunes form, and (3) link changes in foliar delta N-15 values to moisture availability in buried fossil T. landbeckii layers. We conclude by pointing out the potential that these systems have for reconstructing past climate change along coastal northern Chile during the late Holocene.
dc.fuente.origenWOS
dc.identifier.doi10.1029/2010JG001521
dc.identifier.eissn2169-8961
dc.identifier.issn2169-8953
dc.identifier.urihttps://doi.org/10.1029/2010JG001521
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95347
dc.identifier.wosidWOS:000295130300001
dc.language.isoen
dc.revistaJournal of geophysical research-biogeosciences
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleEstablishment and formation of fog-dependent <i>Tillandsia landbeckii</i> dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes
dc.typeartículo
dc.volumen116
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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