| Titre : | Journal of Animal Ecology 78(1) - JAN 2009 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Marco Moretti, Auteur ;
Francesco de Bello, Auteur ;
Stuart P. M. Roberts, Auteur ;
Simon G. Potts, Auteur
Valuable insights into mechanisms of community responses to environmental change can be gained by analysing in tandem the variation in functional and taxonomic composition along environmental gradients. We assess the changes in species and funct[...]
Article
Heather R. Cunningham, Auteur ;
Leslie J. Rissler, Auteur ;
Joseph J. Apodaca, Auteur
Determining the factors that influence the distribution of species has been a longstanding goal in the field of ecology. New techniques such as ecological niche modelling have the potential to aid in addressing many broad questions in ecology, e[...]
Article
Physical defences wear you down: progressive and irreversible impacts of silica on insect herbivores
Fergus P. Massey, Auteur ;
Sue E. Hartley, Auteur
Silica in the leaves of grasses can act as a defence against both vertebrate and invertebrate herbivores. The mechanisms by which silica affects herbivore performance are not well characterized. Here we expose an insect herbivore Spodoptera exem[...]
Article
Erik Wapstra, Auteur ;
Tobias Uller, Auteur ;
David L. Sinn, Auteur ;
Mats Olsson, Auteur ;
Katrina Mazurek, Auteur ;
Jean Joss, Auteur ;
Richard Shine, Auteur
Understanding individual and population responses to climate change is emerging as an important challenge. Because many phenotypic traits are sensitive to environmental conditions, directional climate change could significantly alter trait distr[...]
Article
Cecile Vanpe, Auteur ;
Nicolas Morellet, Auteur ;
Petter Kjellander, Auteur ;
Michel Goulard, Auteur ;
Olof Liberg, Auteur ;
A. J. Mark Hewison, Auteur
Territoriality is commonly associated with resource defence polygyny, where males are expected to gain access to females by anticipating how resources will influence female distribution and competing for resource-rich sites to establish their zo[...]
Article
Peter Stoll, Auteur ;
Peter Oggier, Auteur ;
Bruno Baur, Auteur
The fragmentation of natural habitats is generally considered to be a major threat to biodiversity. Different species may respond differently to habitat fragmentation, depending on species-specific traits such as body size, dispersal ability, ma[...]
Article
Juan Jose Sanz, Auteur ;
Vicente Garcia-Navas, Auteur
We test the consequences, in terms of breeding success and parental effort, of eggshell pigmentation pattern in a hole-nesting bird, the blue tit Cyanistes caeruleus that lays eggs asymmetrically speckled with reddish spots (maculated eggs). We [...]
Article
Laura J. McGrath, Auteur ;
Charles Van Riper, Auteur ;
Joseph J. Fontaine, Auteur
Neotropical migrant birds show a clear preference for stopover habitats with ample food supplies; yet, the proximate cues underlying these decisions remain unclear. For insectivorous migrants, cues associated with vegetative phenology (e.g. flow[...]
Article
Anders G. Finstad, Auteur ;
Sigurd Einum, Auteur ;
Ola Ugedal, Auteur ;
Torbjorn Forseth, Auteur
Spatial heterogeneity of resources may influence competition among individuals and thus have a fundamental role in shaping population dynamics and carrying capacity. In the present study, we identify shelter opportunities as a limiting resource [...]
Article
Daniel R. Ardia, Auteur ;
Jonathan H. Perez, Auteur ;
Elise K. Chad, Auteur ;
Margaret A. Voss, Auteur ;
Ethan D. Clotfelter, Auteur
Life-history decisions are strongly affected by environmental conditions. In birds, incubation is energetically expensive and affected significantly by ambient temperature. We reduced energetic constraints for female tree swallows (Tachycineta b[...]
Article
Gail Schofield, Auteur ;
Charles M. Bishop, Auteur ;
Kostas A. Katselidis, Auteur ;
Panayotis Dimopoulos, Auteur ;
John D. Pantis, Auteur ;
Graeme C. Hays, Auteur
Reproductive fitness is often compromised at the margins of a species' range due to sub-optimal conditions. Set against this backdrop, the Mediterranean's largest loggerhead sea turtle (Caretta caretta) rookery at Zakynthos (Greece) presents a c[...]
