Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae)
5 páginas, 4 figuras.
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Format: | artículo biblioteca |
Language: | English |
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Botanical Society of America
2007-08
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Subjects: | Comparative methods, Heterochrony, Light competition, Shade tolerance, Understory maples, |
Online Access: | http://hdl.handle.net/10261/59511 |
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dig-cide-es-10261-595112016-02-17T10:40:04Z Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) Verdú, Miguel Climent, José Comparative methods Heterochrony Light competition Shade tolerance Understory maples 5 páginas, 4 figuras. Two strategies have evolved in understory trees in relation to light availability: maximization of light capture and shade tolerance. In the genus Acer, light capture is favored by a suite of traits maximizing twig thickness and leaf size and minimizing the density of branching in the crown. In contrast, shade tolerance is enhanced by minimizing crown area, crown volume, and total leaf area per unit height. Maples with polycyclic shoot growth (i.e., successive flushes of shoot growth separated by a resting phase within the same vegetative period) may benefit from the prolonged growth by growing more and increasing total leaf area; thus we hypothesize that polycyclism is evolutionarily correlated with the suite of traits related to light capture. We tested this hypothesis using different phylogenetic trees to explore correlations between polycyclism and both suites of traits. Polycyclism was correlated with the suite of traits maximizing light capture, suggesting that polycyclic maples are "optimists" (i.e., they make vigorous vertical extensions in rich light) and monocyclic maples are "pessimists" (i.e., they wait in the dark understory until a gap is opened). Both strategies have been described for different floras, and interestingly, polycyclic species recruit over a wider range of environments than the monocyclic species. Peer reviewed 2012-11-06T08:55:42Z 2012-11-06T08:55:42Z 2007-08 artículo http://purl.org/coar/resource_type/c_6501 American Journal of Botany 94(8): 1316-1320 (2007) 0002-9122 http://hdl.handle.net/10261/59511 10.3732/ajb.94.8.1316 en http://dx.doi.org/10.3732/ajb.94.8.1316 open Botanical Society of America |
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Comparative methods Heterochrony Light competition Shade tolerance Understory maples Comparative methods Heterochrony Light competition Shade tolerance Understory maples |
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Comparative methods Heterochrony Light competition Shade tolerance Understory maples Comparative methods Heterochrony Light competition Shade tolerance Understory maples Verdú, Miguel Climent, José Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
description |
5 páginas, 4 figuras. |
format |
artículo |
topic_facet |
Comparative methods Heterochrony Light competition Shade tolerance Understory maples |
author |
Verdú, Miguel Climent, José |
author_facet |
Verdú, Miguel Climent, José |
author_sort |
Verdú, Miguel |
title |
Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
title_short |
Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
title_full |
Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
title_fullStr |
Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
title_full_unstemmed |
Evolutionary correlations of polycyclic shoot growth in Acer (Sapindaceae) |
title_sort |
evolutionary correlations of polycyclic shoot growth in acer (sapindaceae) |
publisher |
Botanical Society of America |
publishDate |
2007-08 |
url |
http://hdl.handle.net/10261/59511 |
work_keys_str_mv |
AT verdumiguel evolutionarycorrelationsofpolycyclicshootgrowthinacersapindaceae AT climentjose evolutionarycorrelationsofpolycyclicshootgrowthinacersapindaceae |
_version_ |
1777665489887035392 |