| Titre : | Journal of Animal Ecology 73(2) - MAR 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
T. Laaksonen, Auteur ;
J. A. Fargallo, Auteur ;
E. Korpimäki, Auteur ;
S. Lyytinen, Auteur ;
J. Valkama, Auteur ;
V. Poyri, Auteur
1. Offspring sex ratio may be an unpredictable component of life history that might select for behavioural plasticity in parental care. If the parents do not have such plasticity and the two sexes of offspring differ in size, individuals in a br[...]
Article
D. R. Chalcraft, Auteur ;
W. J. Resetarits, Auteur
1. Much of the debate surrounding the consequences of biodiversity loss centres around the issue of whether different species are functionally similar in their effects on ecological processes. In this study, we examined whether populations consi[...]
Article
H. Kokko, Auteur ;
M. P. Harris, Auteur ;
S. Wanless, Auteur
1. The hypothesis of site-dependent population regulation predicts that birds utilize available nesting sites in a pre-emptive (ideal despotic) manner, leading to density dependence in heterogeneous habitats as poorer sites are used at higher po[...]
Article
S. Altizer, Auteur ;
W. M. Hochachka, Auteur ;
A. A. Dhondt, Auteur
1. Mycoplasma gallisepticum is an emerging eye disease that spread rapidly among wild house finches (Carpodacus mexicanus) in the eastern United States following initial reports of infected birds in 1994. The hallmark signs of infection have all[...]
Article
D. W. Sims, Auteur ;
V. J. Wearmouth, Auteur ;
M. J. Genner, Auteur ;
A. J. Southward, Auteur ;
S. J. Hawkins, Auteur
1. It is often assumed that the timing of annual migrations of marine fish to spawning grounds occurs with very little change over time. However, it is unclear how much migration is influenced by climate change in marine species that spawn at se[...]
Article
1. Sacoglossan sea slugs (Gastropoda: Opisthobranchia) can change their highly specialized algal host associations in response to introduced hosts. 2. Adult sacoglossans (Placida dendritica) collected from the introduced green macroalga Codium f[...]
Article
S. C. Cotter, Auteur ;
R. S. Hails, Auteur ;
J. S. Cory, Auteur ;
K. Wilson, Auteur
1. The risk of parasitism and infectious disease is expected to increase with population density as a consequence of positive density-dependent transmission rates. Therefore, species that encounter large fluctuations in population density are pr[...]
Article
J. M. Elliott, Auteur
1. The leech, Erpobdella octoculata (L.), occurred as two local populations at sites A (deep section with macrophytes) and B (shallow stony section) in a small stream. A June census estimated densities of young leeches (R(1) m(-2)) and mature le[...]
