| Titre : | Journal of Ecology 96(1) - JAN 2008 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Caitlin Mullan Crain, Auteur
1. Positive interactions between species are predicted to increase in importance at extreme ends of environmental gradients where neighbours offer either stress amelioration in harsh environments or associational defence from consumers in benign[...]
Article
Cristina F. Aragon, Auteur ;
Adrián Escudero, Auteur ;
Fernando Valladares, Auteur
1. Summer drought stress is considered the primary constraint to plant performance in Mediterranean ecosystems. However, little is known about the implications of summer stress for plant reproduction under real field conditions and, particularly[...]
Article
Anu Eskelinen, Auteur
1. I performed a factorial transplant experiment to test the roles of plant-plant interactions, herbivory by mammal grazers and resource availability for plant performance in two contrasting habitat types in a mountain tundra environment. 2. Thr[...]
Article
Kevin H. Britton-Simmons, Auteur ;
Karen C. Abbott, Auteur
1. Invading species typically need to overcome multiple limiting factors simultaneously in order to become established, and understanding how such factors interact to regulate the invasion process remains a major challenge in ecology. 2. We used[...]
Article
Takehiro Sasaki, Auteur ;
Tomoo Okayasu, Auteur ;
Undarmaa Jamsran, Auteur ;
Kazuhiko Takeuchi, Auteur
1. The concept of threshold has become important in ecology, but the nature of potential threshold responses of vegetation to grazing in rangeland ecosystems remains poorly understood. We aimed to identify ecological thresholds in vegetation cha[...]
Article
Lem G. Butler, Auteur ;
Knut Kielland, Auteur
1. We examined the effects of browsing by moose and snowshoe hares on vegetation structure, species composition, plant demography and element cycling in 25 riparian (willow) vegetation stands along the Tanana River, interior Alaska, across a 250[...]
Article
Philip W. Lambdon, Auteur
1. The Mediterranean region has been invaded by a wide range of introduced plant species which differ greatly in their ecology, morphology and human utilization. In order to identify a suite of traits which characterize invasiveness, recent stud[...]
Article
Tania Brenes-Arguedas, Auteur ;
Phyllis D. Coley, Auteur ;
Thomas A. Kursar, Auteur
1. Tropical plants express multiple defensive traits that enable them to resist, deter or escape herbivores. In this study, we approached plant defensive adaptations by focusing on variation and interaction between sets of plant defensive strate[...]
Article
Julian M. Norghauer, Auteur ;
Jay R. Malcolm, Auteur ;
Barbara L. Zimmerman, Auteur
1. Light availability may be crucial for understanding dynamics of plant-herbivore interactions in temperate and tropical forest communities. This is because local light availability can influence both tree seedling tolerance and susceptibility [...]
Article
Colin P. Osborne, Auteur
1. Grasses using the C(4) photosynthetic pathway dominate today's savanna ecosystems and account for similar to 20% of terrestrial carbon fixation. However, this dominant status was reached only recently, during a period of C(4) grassland expans[...]
Article
Marcia Gonzalez-Teuber, Auteur ;
Ernesto Gianoli, Auteur
1. Associational resistance occurs when one plant species gains protection from its consumers by association with a defended species. In semi-arid ecosystems of Chile, the perennial herb Convolvulus chilensis (Convolvulaceae) suffers heavy herbi[...]
Article
Katharine I. Predick, Auteur ;
Monica G. Turner, Auteur
1. Invasive species are present worldwide, yet predicting which invasive species will become problematic in which ecosystems remains an important ecological challenge. Floodplains are at particular risk for invasion, especially when subjected to[...]
Article
Rob W. Brooker, Auteur ;
Fernando T. Maestre, Auteur ;
Ragan M. Callaway, Auteur ;
Christopher L. Lortie, Auteur ;
Lohengrin A. Cavieres, Auteur ;
Georges Kunstler, Auteur ;
Pierre Liancourt, Auteur ;
Katja Tielboerger, Auteur ;
Justin M. J. Travis, Auteur ;
Fabien Anthelme, Auteur ;
Cristina Armas, Auteur ;
Lluis Coll, Auteur ;
Emmanuel Corcket, Auteur ;
Sylvain Delzon, Auteur ;
Estelle Forey, Auteur ;
Zaal Kikvidze, Auteur ;
Johan Olofsson, Auteur ;
Francisco I. Pugnaire, Auteur ;
Constanza L. Quiroz, Auteur ;
Patrick Saccone, Auteur ;
Katja Schiffers, Auteur ;
Merav Seifan, Auteur ;
Blaise Touzard, Auteur ;
Richard Michalet, Auteur
1. Once neglected, the role of facilitative interactions in plant communities has received considerable attention in the last two decades, and is now widely recognized. It is timely to consider the progress made by research in this field. 2. We [...]
