Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range

Pilgerodendron uviferum, ciprés de Las Guaitecas, is a long-lived member of the family Cupressaceae; it is dioecious, and endemic to the temperate forests of South America. Its geographic range extends over 1,600 km, from 39°35'S (Valdivia Province, Chile) to 54°20'S (Cape Horn), making it...

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Autores principales:	Soto,Daniel P, Le Quesne,Carlos, Lara,Antonio, Gardner,Martin F
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2007
Materias:	forest remnants swamp forests threatened conifer wetlands
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002007000300012
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spelling	oai:scielo:S0717-920020070003000122008-04-14Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal RangeSoto,Daniel PLe Quesne,CarlosLara,AntonioGardner,Martin F forest remnants swamp forests threatened conifer wetlands Pilgerodendron uviferum, ciprés de Las Guaitecas, is a long-lived member of the family Cupressaceae; it is dioecious, and endemic to the temperate forests of South America. Its geographic range extends over 1,600 km, from 39°35'S (Valdivia Province, Chile) to 54°20'S (Cape Horn), making it the conifer with the southernmost distribution in the world. North of 42° S latitude, the species is restricted to small, discrete forest stands in waterlogged soils. This paper describes four previously undocumented stands of P. uviferum in south-central Chile (39°50') -extending the known northern limit of the species in the Chilean Coastal Range (CCR)- and highlights its precarious conservation status. These small stands (< 2 ha) are isolated within a matrix of pastures and exotic forest plantations, and are subject to chronic disturbance by livestock grazing, logging, and burning. On the basis of dead burned snags and stumps, we estimated that recurrent burning and logging have resulted in a 57% loss of P. uviferum stems, and an 80% loss of basal area in these stands. Current land use regimes in the study area are causing multiple threats to the viability of these stands. We recommend to develop a restoration program in order to preserve these geographical outlying P. uviferum populationsinfo:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.28 n.3 20072007-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002007000300012en10.4067/S0717-92002007000300012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	forest remnants swamp forests threatened conifer wetlands
spellingShingle	forest remnants swamp forests threatened conifer wetlands Soto,Daniel P Le Quesne,Carlos Lara,Antonio Gardner,Martin F Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
description	Pilgerodendron uviferum, ciprés de Las Guaitecas, is a long-lived member of the family Cupressaceae; it is dioecious, and endemic to the temperate forests of South America. Its geographic range extends over 1,600 km, from 39°35'S (Valdivia Province, Chile) to 54°20'S (Cape Horn), making it the conifer with the southernmost distribution in the world. North of 42° S latitude, the species is restricted to small, discrete forest stands in waterlogged soils. This paper describes four previously undocumented stands of P. uviferum in south-central Chile (39°50') -extending the known northern limit of the species in the Chilean Coastal Range (CCR)- and highlights its precarious conservation status. These small stands (< 2 ha) are isolated within a matrix of pastures and exotic forest plantations, and are subject to chronic disturbance by livestock grazing, logging, and burning. On the basis of dead burned snags and stumps, we estimated that recurrent burning and logging have resulted in a 57% loss of P. uviferum stems, and an 80% loss of basal area in these stands. Current land use regimes in the study area are causing multiple threats to the viability of these stands. We recommend to develop a restoration program in order to preserve these geographical outlying P. uviferum populations
author	Soto,Daniel P Le Quesne,Carlos Lara,Antonio Gardner,Martin F
author_facet	Soto,Daniel P Le Quesne,Carlos Lara,Antonio Gardner,Martin F
author_sort	Soto,Daniel P
title	Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
title_short	Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
title_full	Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
title_fullStr	Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
title_full_unstemmed	Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range
title_sort	precarious conservation status of pilgerodendron uviferum forests in their northern distribution in the chilean coastal range
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002007000300012
work_keys_str_mv	AT sotodanielp precariousconservationstatusofpilgerodendronuviferumforestsintheirnortherndistributioninthechileancoastalrange AT lequesnecarlos precariousconservationstatusofpilgerodendronuviferumforestsintheirnortherndistributioninthechileancoastalrange AT laraantonio precariousconservationstatusofpilgerodendronuviferumforestsintheirnortherndistributioninthechileancoastalrange AT gardnermartinf precariousconservationstatusofpilgerodendronuviferumforestsintheirnortherndistributioninthechileancoastalrange
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Precarious conservation status of Pilgerodendron uviferum forests in their northern distribution in the Chilean Coastal Range

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