| Kategorie |
Textpublikation |
| Referenztyp |
Zeitschriften |
| DOI |
10.1111/1365-2745.12401
|
| Titel (primär) |
Globally, functional traits are weak predictors of juvenile tree growth, and we do not know why |
| Autor |
Paine, C.E.T.; Amissah, L.; Auge, H.
; Baraloto, C.; Baruffol, M.; Bourland, N.; Bruelheide, H.; Dainou, K.; de Gouvenain, R.C.; Doucet, J.-L.; Doust, S.; Fine, P.V.A.; Fortunel, C.; Haase, J.; Holl, K.D.; Jactel, H.; Li, X.; Kitajima, K.; Koricheva, J.; Martínez-Garza, C.; Messier, C.; Paquette, A.; Philipson, C.; Piotto, D.; Poorter, L.; Posada, J.M.; Potvin, C.; Rainio, K.; Russo, S.E.; Ruiz-Jaen, M.; Scherer-Lorenzen, M.; Webb, C.O.; Wright, S.J.; Zahawi, R.A.; Hector, A. |
| Quelle |
Journal of Ecology |
| Erscheinungsjahr |
2015 |
| Department |
BZF; iDiv |
| Band/Volume |
103 |
| Heft |
4 |
| Seite von |
978 |
| Seite bis |
989 |
| Sprache |
englisch |
| Daten-/Softwarelinks |
https://doi.org/10.5061/dryad.h9083 |
| Supplements |
Supplement 1
Supplement 2
Supplement 3 |
| Keywords |
functional ecology; FunDivEurope; growth; hierarchical models; plant population and community dynamics; relative growth rate; size-standardized growth rate; TreeDivNet |
| UFZ Querschnittsthemen |
TERENO; RU1; |
| Abstract |
- Plant
functional traits, in particular specific leaf area (SLA), wood density
and seed mass, are often good predictors of individual tree growth
rates within communities. Individuals and species with high SLA, low
wood density and small seeds tend to have faster growth rates.
- If
community-level relationships between traits and growth have general
predictive value, then similar relationships should also be observed in
analyses that integrate across taxa, biogeographic regions and
environments. Such global consistency would imply that traits could
serve as valuable proxies for the complex suite of factors that
determine growth rate, and, therefore, could underpin a new generation
of robust dynamic vegetation models. Alternatively, growth rates may
depend more strongly on the local environment or growth–trait
relationships may vary along environmental gradients.
- We tested
these alternative hypotheses using data on 27 352 juvenile trees,
representing 278 species from 27 sites on all forested continents, and
extensive functional trait data, 38% of which were obtained at the same
sites at which growth was assessed. Data on potential evapotranspiration
(PET), which summarizes the joint ecological effects of temperature and
precipitation, were obtained from a global data base.
- We
estimated size-standardized relative height growth rates (SGR) for all
species, then related them to functional traits and PET using
mixed-effect models for the fastest growing species and for all species
together.
- Both the mean and 95th percentile SGR were more
strongly associated with functional traits than with PET. PET was
unrelated to SGR at the global scale. SGR increased with increasing SLA
and decreased with increasing wood density and seed mass, but these
traits explained only 3.1% of the variation in SGR. SGR–trait
relationships were consistently weak across families and biogeographic
zones, and over a range of tree statures. Thus, the most widely studied
functional traits in plant ecology were poor predictors of tree growth
over large scales.
- Synthesis. We conclude that these
functional traits alone may be unsuitable for predicting growth of trees
over broad scales. Determining the functional traits that predict vital
rates under specific environmental conditions may generate more insight
than a monolithic global relationship can offer.
|
| dauerhafte UFZ-Verlinkung |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16100 |
Paine, C.E.T., Amissah, L., Auge, H., Baraloto, C., Baruffol, M., Bourland, N., Bruelheide, H., Dainou, K., de Gouvenain, R.C., Doucet, J.-L., Doust, S., Fine, P.V.A., Fortunel, C., Haase, J., Holl, K.D., Jactel, H., Li, X., Kitajima, K., Koricheva, J., Martínez-Garza, C., Messier, C., Paquette, A., Philipson, C., Piotto, D., Poorter, L., Posada, J.M., Potvin, C., Rainio, K., Russo, S.E., Ruiz-Jaen, M., Scherer-Lorenzen, M., Webb, C.O., Wright, S.J., Zahawi, R.A., Hector, A. (2015):
Globally, functional traits are weak predictors of juvenile tree growth, and we do not know why
J. Ecol. 103 (4), 978 - 989 10.1111/1365-2745.12401 |
