JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT

It has been argued that if the cost of investment in cold resistance mechanisms detracts significantly from growth rates, then height growth tradeoffs should control species sorting on latitudinal temperature gradients. Applying the same logic to altitudinal temperature gradients, it can be predicte...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Cárdenas Garrido,Cecilia, Lusk,Christopher H.
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2002
Materias:	altitude cold resistence competition temperate forest tradeoff
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432002000100004
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-66432002000100004
record_format	dspace
spelling	oai:scielo:S0717-664320020001000042003-01-06JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENTCárdenas Garrido,CeciliaLusk,Christopher H. altitude cold resistence competition temperate forest tradeoff It has been argued that if the cost of investment in cold resistance mechanisms detracts significantly from growth rates, then height growth tradeoffs should control species sorting on latitudinal temperature gradients. Applying the same logic to altitudinal temperature gradients, it can be predicted that species' upper altitudinal limits will be fixed by their degree of cold resistance, whereas the lower altitudinal limits of species growing higher up will be set by competition from faster-growing thermophilous species. We tested this prediction for three Nothofagus species on an altitudinal gradient (1,100 - 1,700 m) near Termas de Chillán, on the lower western slopes of the Andean Cordillera. We used retrospective methods to measure height increment during the previous growing season, for juvenile trees growing under open conditions at 12 sites. As expected, height growth rates generally decreased with increasing altitude. However, relationships between altitude and height growth did not differ among species. As growth rates of cold-resistant N. pumilio were very similar to those of its more thermophilous competitors N. obliqua and N. dombeyi, our initial prediction was not upheld by the data, and we can not explain what determines the lower altitudinal limit of N. pumilioinfo:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.59 n.1 20022002-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432002000100004en10.4067/S0717-66432002000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	altitude cold resistence competition temperate forest tradeoff
spellingShingle	altitude cold resistence competition temperate forest tradeoff Cárdenas Garrido,Cecilia Lusk,Christopher H. JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
description	It has been argued that if the cost of investment in cold resistance mechanisms detracts significantly from growth rates, then height growth tradeoffs should control species sorting on latitudinal temperature gradients. Applying the same logic to altitudinal temperature gradients, it can be predicted that species' upper altitudinal limits will be fixed by their degree of cold resistance, whereas the lower altitudinal limits of species growing higher up will be set by competition from faster-growing thermophilous species. We tested this prediction for three Nothofagus species on an altitudinal gradient (1,100 - 1,700 m) near Termas de Chillán, on the lower western slopes of the Andean Cordillera. We used retrospective methods to measure height increment during the previous growing season, for juvenile trees growing under open conditions at 12 sites. As expected, height growth rates generally decreased with increasing altitude. However, relationships between altitude and height growth did not differ among species. As growth rates of cold-resistant N. pumilio were very similar to those of its more thermophilous competitors N. obliqua and N. dombeyi, our initial prediction was not upheld by the data, and we can not explain what determines the lower altitudinal limit of N. pumilio
author	Cárdenas Garrido,Cecilia Lusk,Christopher H.
author_facet	Cárdenas Garrido,Cecilia Lusk,Christopher H.
author_sort	Cárdenas Garrido,Cecilia
title	JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
title_short	JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
title_full	JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
title_fullStr	JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
title_full_unstemmed	JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT
title_sort	juvenile height growth rates and sorting of three nothofagus species on an altitudinal gradient
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2002
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432002000100004
work_keys_str_mv	AT cardenasgarridocecilia juvenileheightgrowthratesandsortingofthreenothofagusspeciesonanaltitudinalgradient AT luskchristopherh juvenileheightgrowthratesandsortingofthreenothofagusspeciesonanaltitudinalgradient
_version_	1718442206044356608

JUVENILE HEIGHT GROWTH RATES AND SORTING OF THREE NOTHOFAGUS SPECIES ON AN ALTITUDINAL GRADIENT

Ejemplares similares