Summary 1 Several hypotheses have attempted to explain why sedentary populations
persist in the wintering grounds of many migratory bird species. For instance, residents may …

Competition for limiting natural resources generates complex networks of relationships
between individuals, both at the intra-and interspecific levels, establishing hierarchical …

Predictive habitat models rely on the relationship between a response variable (either
occurrence or abundance of a species) and a set of environmental predictors. Vegetation is …

Birds often show some form of social segregation during winter, both at large geographical
scales (a consequence of differential migration) and at the regional or local level, when …

Climate change is causing phenological shifts in the environment. Among birds, increasing
temperatures have been shown to advance the spring migration and breeding, which in turn …

An individual's sex, body size and colour pattern can influence its habitat use, and such
partitioning can have important ecological and evolutionary consequences. We studied a …

Capsule Distinct breeding populations of migratory species may overlap both spatially and
temporally, but differ in patterns of habitat use. This has important implications for population …

Aim We studied how local and regional abundance of a migratory passerine (the blackcap
Sylvia atricapilla) track resource availability in breeding and wintering grounds, in an attempt …

In wintering areas where migrant birds meet sedentary conspecifics, early settlement of local
residents in the best habitat patches might reduce the availability of suitable sites for arriving …

Migratory frugivorous birds disperse the seeds of many plant species, forming mutualistic
associations that render frugivores a priority for conservation in many habitats worldwide …