Butterfield B. J., Cavieres L. A., Callaway R. M., Cook B. J., Kikvidze Z., Lortie C. J., Michalet R., Pugnaire F. I., Schob C., Xiao S., Zaitchek B., Anthelme Fabien, Bjork R. G., Dickinson K., Gavilan R., Kanka R., Maalouf J. P., Noroozi J., Parajuli R., Phoenix G. K., Reid A., Ridenour W., Rixen C., Wipf S., Zhao L., Brooker R. W. (2013). Alpine cushion plants inhibit the loss of phylogenetic diversity in severe environments. Ecology Letters, 16 (4), p. 478-486. ISSN 1461-023X.
Titre du document
Alpine cushion plants inhibit the loss of phylogenetic diversity in severe environments
Année de publication
2013
Auteurs
Butterfield B. J., Cavieres L. A., Callaway R. M., Cook B. J., Kikvidze Z., Lortie C. J., Michalet R., Pugnaire F. I., Schob C., Xiao S., Zaitchek B., Anthelme Fabien, Bjork R. G., Dickinson K., Gavilan R., Kanka R., Maalouf J. P., Noroozi J., Parajuli R., Phoenix G. K., Reid A., Ridenour W., Rixen C., Wipf S., Zhao L., Brooker R. W.
Source
Ecology Letters, 2013,
16 (4), p. 478-486 ISSN 1461-023X
Biotic interactions can shape phylogenetic community structure (PCS). However, we do not know how the asymmetric effects of foundation species on communities extend to effects on PCS. We assessed PCS of alpine plant communities around the world, both within cushion plant foundation species and adjacent open ground, and compared the effects of foundation species and climate on alpha (within-microsite), beta (between open and cushion) and gamma (open and cushion combined) PCS. In the open, alpha PCS shifted from highly related to distantly related with increasing potential productivity. However, we found no relationship between gamma PCS and climate, due to divergence in phylogenetic composition between cushion and open sub-communities in severe environments, as demonstrated by increasing phylo-beta diversity. Thus, foundation species functioned as micro-refugia by facilitating less stress-tolerant lineages in severe environments, erasing a global productivity phylogenetic diversity relationship that would go undetected without accounting for this important biotic interaction.
Plan de classement
Sciences du monde végétal [076]
;
Etudes, transformation, conservation du milieu naturel [082]
Description Géographique
AMERIQUE DU SUD ; AMERIQUE DU NORD ; EUROPE ; ASIE ; NOUVELLE ZELANDE
Localisation
Fonds IRD [F B010060774]
Identifiant IRD
fdi:010060774
