Abstract Background Abiotic and biotic factors in a local habitat may strongly impact the community residing within, but spatially structured metacommunities are also influenced by regional factors such as immigration and colonization.We used three years of monthly treehole census data to evaluate the relative influence of local and regional factor
Abstract Background Species interactions may affect spatial dynamics when the movement of one species is determined by the presence of another one.The most direct species-dependence of dispersal is vectored, usually cross-kingdom, movement of immobile parasites, diseases or seeds by mobile animals.Joint movements of species should, however, not be
The phytopathogenic bacterium Pseudomonas syringae pv.savastanoi elicits aerial tumors on olive plants and is also able to synthesize large amounts of auxins and cytokinins.The auxin indoleacetic acid was shown to be required for tumorigenesis, but there is only correlational evidence suggesting a role for cytokinins.The model strain NCPPB 3335 con