title: Modulating effects of ontogeny on the outcome of plant-plant interactions along stress gradients.
authors.affiliation: Institute of Ecology and Biodiversity (IEB), Casilla 653, Santiago, Chile.|Facultad de Ciencias, Universidad de La Serena, Casilla 554, La Serena, Chile.
authors.forename: Cristina
authors.initials: C
authors.lastname: Armas
authors.affiliation: The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK.
authors.forename: Christian
authors.initials: C
authors.lastname: Schöb
authors.affiliation: Institute of Ecology and Biodiversity (IEB), Casilla 653, Santiago, Chile.|Facultad de Ciencias, Universidad de La Serena, Casilla 554, La Serena, Chile.
authors.forename: Julio R
authors.initials: JR
authors.lastname: Gutiérrez
mesh_terms: D031703:Agrostis / Q000254:growth & development*; D019661:Apiaceae / Q000254:growth & development*; D017753:Ecosystem; D013312:Stress, Physiological
keywords: environmental gradients; global change; ontogeny; plant communities; plant-plant interactions; population dynamics; stress gradient hypothesis
references.citation: Armas C, Rodríguez-Echeverría S, Pugnaire FI. 2011. A field test of the stress-gradient hypothesis along an aridity gradient. Journal of Vegetation Science 22: 818-827.
references.citation: Bertness MD, Callaway RM. 1994. Positive interactions in communities. Trends in Ecology & Evolution 9: 191-193.
references.citation: Brooker RW. 2006. Plant-plant interactions and environmental change. New Phytologist 171: 271-284.
references.citation: Brooker RW, Callaghan TV. 1998. The balance between positive and negative plant interactions and its relationship to environmental gradients: a model. Oikos 81: 196-207.
references.citation: Brooker RW, Maestre FT, Callaway RM, Lortie CL, Cavieres LA, Kunstler G, Liancourt P, Tielbörger K, Travis JMJ, Armas C et al. 2008. Facilitation in plant communities: the past, the present, and the future. Journal of Ecology 96: 18-34.
references.citation: Callaway RM. 2007. Positive interactions and interdependence in plant communities. Dordrecht, the Netherlands: Springer.
references.citation: Callaway RM. 2013. Life at the edge, cooperation in Antarctica. Journal of Vegetation Science 24: 41-418.
references.citation: Callaway RM, Walker LR. 1997. Competition and facilitation: a synthetic approach to interactions in plant communities. Ecology 78: 1958-1965.
references.citation: He Q, Bertness MD, Altieri AH. 2013. Global shifts towards positive species interactions with increasing environmental stress. Ecology Letters 16: 695-706.
references.citation: Leimu R, Mutikainen P, Koricheva J, Fischer M. 2006. How general are positive relationships between plant population size, fitness and genetic variation? Journal of Ecology 94: 942-952.
references.citation: Maestre FT, Callaway RM, Valladares F, Lortie CJ. 2009. Refining the stress-gradient hypothesis for competition and facilitation in plant communities. Journal of Ecology 97: 199-205.
references.citation: Malkinson D, Tielbörger K. 2010. What does the stress-gradient hypothesis predict? Resolving the discrepancies Oikos 119: 1546-1552.
references.citation: Michalet R, Schöb C, Lortie CJ, Brooker RW, Callaway RM. 2013. Partitioning net interactions among plants along altitudinal gradients to study community responses to climate change. Functional Ecology. doi: 10.1111/1365-2435.12136.
references.citation: le Roux PC, Shaw JD, Chown SL. 2013. Ontogenetic shifts in plant interactions vary with environmental severity and affect population structure. New Phytologist 200: 241-250.
references.citation: Schiffers K, Tielbörger K. 2006. Ontogenetic shifts in interactions among annual plants. Journal of Ecology 94: 336-341.
references.citation: Schöb C, Armas C, Guler M, Prieto I, Pugnaire FI. 2013. Variability in functional traits mediates plant interactions along stress gradients. Journal of Ecology 101: 753-762.
references.citation: Soliveres S, Eldridge D, Maestre FT, Bowker MA, Tighe M, Escudero A. 2011. Microhabitat amelioration and reduced competition among understorey plants as drivers of facilitation across environmental gradients: towards a unifying framework. Perspectives in Plant Ecology, Evolution and Systematics 13: 247-258.