| Titre : | Journal of Ecology 101(5) - SEP 2013 |
| Type de document : | Bulletin |
| Paru le : | 01/09/2013 |
Dépouillements
Article
Marina Semchenko, Auteur ;
Maria Abakumova, Auteur ;
Anu Lepik, Auteur ;
Kristjan Zobel, Auteur
1. Previous studies have concluded that spatial aggregation of conspecifics should benefit weak competitors and put stronger competitors at a disadvantage, thus promoting plant species coexistence. However, if competitive ability is viewed as a [...]
Article
Lars Podenphant Kiaer, Auteur ;
Anne Nygaard Weisbach, Auteur ;
Jacob Weiner, Auteur
1. We review the effects of root and shoot competition on plant biomass by meta-analysis of 38 published studies, each reporting on the factorial effects of root-competition and shoot-competition on herbaceous plants. 2. There were significant d[...]
Article
Elly Morrien, Auteur ;
Wim H. van der Putten, Auteur
1. Due to global warming and other changes in the environment, many native and exotic plant species show range expansion from lower to higher latitudes. In the new range, the (in)ability of range-expanding plants to establish associations with l[...]
Article
Cyril Mbeau-Ache, Auteur ;
Miguel Franco, Auteur
1. It is agreed that, for senescence to occur, the intensity of natural selection must decline with age. Measures of the change in the intensity of natural selection with age include reproductive value and sensitivity of fitness to changes in su[...]
Article
Laura K. Reynolds, Auteur ;
Michelle Waycott, Auteur ;
Karen J. McGlathery, Auteur
1. Ecological restoration assists the recovery of degraded ecosystems; however, restoration can have deleterious effects such as outbreeding depression when source material is not chosen carefully and has non-local adaptations. 2. We surveyed 23[...]
Article
Nicholas C. Uren, Auteur ;
Robert F. Parsons, Auteur
1. We question the reasoning of the authors who claim that their evidence strongly supports a long-term ecosystem development model in which phosphorus (P) is the factor that leads to the regression phase of the succession. Parent material, reli[...]
Article
Vinicius de L. Dantas, Auteur ;
Juli G. Pausas, Auteur
1. Fire and herbivory are the main disturbances shaping the structure of savannas. In these ecosystems, the key strategies by which woody plants escape fire are either early height growth (the lanky strategy) or early bark growth (the corky stra[...]
Article
Brenna M. Castro, Auteur ;
Ken S. Moriuchi, Auteur ;
Maren L. Friesen, Auteur ;
Mounawer Badri, Auteur ;
Sergey V. Nuzhdin, Auteur ;
Sharon Y. Strauss, Auteur ;
Douglas R. Cook, Auteur ;
Eric von Wettberg, Auteur
1. Based on expectations of the stress-gradient hypothesis for conspecific interactions, stress-sensitive genotypes may be able to persist in stressful environments when positive interactions between individuals occur under stressful environment[...]
Article
Nachiket Kelkar, Auteur ;
Rohan Arthur, Auteur ;
Nuria Marba, Auteur ;
Teresa Alcoverro, Auteur
1. Historical declines of marine megaherbivores have led to a view of seagrass communities structured largely by abiotic disturbance and plant competition. There is, however, growing recognition of the significance of top-down control through he[...]
Article
Jairo Patino, Auteur ;
Irene Bisang, Auteur ;
Lars Hedenas, Auteur ;
Gerard Dirkse, Auteur ;
Agust H. Bjarnason, Auteur ;
Claudine Ah-Peng, Auteur ;
Alain Vanderpoorten, Auteur
1. The evolution of island syndromes has long served as a model to understand the mechanisms accounting for phenotypic differentiation. Combining literature data with actual observations, we determine whether typical syndromes such as the loss o[...]
Article
Pamela Graff, Auteur ;
Florencia Rositano, Auteur ;
Martin R. Aguiar, Auteur
1. Dioecious plants frequently face sex-related resource allocation trade-offs. Differential traits of male and female plants can have important consequences that influence their direct and indirect interactions with neighbours and herbivores. 2[...]
Article
Georg von Arx, Auteur ;
Elisabeth Graf Pannatier, Auteur ;
Anne Thimonier, Auteur ;
Martine Rebetez, Auteur
1. Forest microclimate is crucial for the growth and survival of tree seedlings and understorey vegetation. This high ecological relevance contrasts with the poor functional and quantitative understanding of how the properties of forest ecosyste[...]
Article
Evidence for scale- and disturbance-dependent trait assembly patterns in dry semi-natural grasslands
Francesco de Bello, Auteur ;
Marie Vandewalle, Auteur ;
Triin Reitalu, Auteur ;
Jan Leps, Auteur ;
Honor C. Prentice, Auteur ;
Sandra Lavorel, Auteur ;
Martin T. Sykes, Auteur
1. The mechanisms driving nonrandom assembly patterns in plant communities have long been of interest in ecological research. Competing ecological theories predict that coexisting species may either be more functionally dissimilar than expected [...]
Article
Simon Goring, Auteur ;
Terri Lacourse, Auteur ;
Marlow G. Pellatt, Auteur ;
Rolf W. Mathewes, Auteur
1. Palaeoecological records of species richness spanning time intervals over which climate variables have shifted relative to one another can help reduce issues of colinearity that might affect our understanding of patterns of species richness. [...]
Article
James D. M. Speed, Auteur ;
Gunnar Austrheim, Auteur ;
Atle Mysterud, Auteur
1. Species richness of plants generally decreases along elevational gradients or peaks at intermediate elevations. Land use including grazing by wild and domestic herbivores also affects plant communities and diversity, but how grazing affects p[...]
Article
Jacquelyn L. Gill, Auteur ;
Kendra K. McLauchlan, Auteur ;
Adam M. Skibbe, Auteur ;
Simon Goring, Auteur ;
Chad R. Zirbel, Auteur ;
John W. Williams, Auteur
1. Megaherbivores likely had important influences on past vegetation dynamics, just as they do in modern ecosystems. The exact nature of megaherbivores' role can be studied using a relatively new suite of palaeoecological techniques, including t[...]
