Global plant trait relationships extend to the climatic extremes of the tundra biome

• Published in: Nature Communications
• Main Authors: Thomas, H., Bjorkman, A., Myers-Smith, I., Elmendorf, S., Kattge, J., Diaz, S., Vellend, M., Blok, D., Cornelissen, J., Forbes, B., Henry, G., Hollister, R., Normand, S., Prevéy, J., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W., Beck, P., Georges, D., Goetz, S., Guay, K., Rüger, N., Soudzilovskaia, N., Spasojevic, M., Alatalo, J., Alexander, H., Anadon-Rosell, A., Angers-Blondin, S., Te Beest, M., Berner, L., Björk, R., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Collier, L., Cooper, E., Elberling, B., Eskelinen, A., Frei, E., Grau, O., Grogan, P., Hallinger, M., Heijmans, M., Hermanutz, L., Hudson, J., Johnstone, J., Hülber, K., Iturrate-Garcia, M., Iversen, C., Jaroszynska, F., Kaarlejarvi, E., Kulonen, A., Lamarque, L., Lantz, T., Lévesque, E., Little, C., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S., Ninot, J., Oberbauer, S., Olofsson, J., Onipchenko, V., Petraglia, A., Rumpf, S., Shetti, R., Speed, J., Suding, K., Tape, K., Tomaselli, M., Trant, A., Treier, U., Tremblay, M., Venn, S., Vowles, T., Weijers, S., Wookey, P., Zamin, T., Bahn, M., Blonder, B., van Bodegom, P., Bond-Lamberty, B., Campetella, G., Cerabolini, B., Chapin, F., Craine, J., Dainese, M., Green, W., Jansen, S., Kleyer, M., Manning, P., Niinemets, Ü., Onoda, Y., Ozinga, W., Penuelas, J., Poschlod, P., Reich, P., Sandel, B., Schamp, B., Sheremetiev, S., de Vries, F.
• Other Authors: Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: [SDE]Environmental Sciences; Tundra
• Online Access: https://hal.inrae.fr/hal-03197378; https://doi.org/10.1038/s41467-020-15014-4

International audience The majority of variation in six traits critical to the growth, survival and reproduction of plant species is thought to be organised along just two dimensions, corresponding to strategies of plant size and resource acquisition. However, it is unknown whether global plant trait relationships extend to climatic extremes, and if these interspecific relationships are confounded by trait variation within species. We test whether trait relationships extend to the cold extremes of life on Earth using the largest database of tundra plant traits yet compiled. We show that tundra plants demonstrate remarkably similar resource economic traits, but not size traits, compared to global distributions, and exhibit the same two dimensions of trait variation. Three quarters of trait variation occurs among species, mirroring global estimates of interspecific trait variation. Plant trait relationships are thus generalizable to the edge of global trait-space, informing prediction of plant community change in a warming world.