Variance in biomass-allocation fractions is explained by distribution in European trees
Veresoglou, Stavros (Freie Universität Berlin)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Fecha:	2019
Resumen:	Intraspecific variability in ecological traits confers the ability of a species to adapt to an ever-changing environment. Fractions of biomass allocation in plants (BAFs) represent both ecological traits and direct expressions of investment strategies and so have important implications on plant fitness, particularly under current global change. - We combined data on BAFs of trees in > 10 000 forest plots with their distributions in Europe. We aimed to test whether plant species with wider distributions have more or less variable intraspecific variance of the BAFs foliage-woody biomass and shoot-root ratios than species with limited distribution. - Irrespective of corrections for tree age and phylogenetic relatedness, the standard deviation in BAFs was up to three times higher in species with the most extensive distributions than in those with the least extensive distribution due to a higher genetic diversity. Variance in BAFs also increased with latitude. - We show that a combination of 36% tree genetic diversity and 64% environmental variability explains variance in BAFs and implies that changes in genetic diversity occur quickly. Genetic diversity should thus play a key role in regulating species responses to future climate change. Loss of habitat, even if transient, could induce a loss of genetic diversity and hinder species survival.
Ayudas:	European Commission 610028
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Allometry ; Effective populationsize ; Extinction ; Genetic diversity ; Plantallometry ; Plant morphology ; Woody plants
Publicado en:	The new phytologist, Vol. 222, issue 3 (May 2019) , p. 1352-1363, ISSN 1469-8137

DOI: 10.1111/nph.15686
PMID: 30636348

Postprint 33 p, 9.5 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
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