Abstract We modeled the relationship between egg flotation and age of a developing embryo
for 24 species of shorebirds. For 21 species, we used regression analyses to estimate …

Among hypotheses explaining nest-site selection, the potential-prey-site hypothesis
predicts that birds place nests in areas with many potential nest sites, while the nest-concealment …

The behavioural rhythms of organisms are thought to be under strong selection, influenced
by the rhythmicity of the environment 1 , 2 , 3 , 4 . Such behavioural rhythms are well studied …

Correlations between transequatorial migratory bird routes and bipolar biogeographic
disjunctions in bryophytes suggest that disjunctions between northern and southern high latitude …

… These species were the most abundant passerine and shorebird species nesting at all study
sites (Liebezeit et al. 2009; J. Liebezeit, unpublished data). Despite notable differences in …

… Observed data were subdivided into interval-event triplets (a ijk , b ijk , δ ijk ), where a ijk
and b ijk were the beginning and ending dates of interval k for nest j on study site i, and δ ijk …

Responses to climate change can vary across functional groups and trophic levels, leading
to a temporal decoupling of trophic interactions or “phenological mismatches.” Despite a …

Semipalmated Sandpiper (Calidris pusilla) populations have undergone significant declines
at core nonbreeding sites in northeastern South America. Breeding populations have also …

Gut microbiota can have important effects on host health, but explanatory factors and pathways
that determine gut microbial composition can differ among host lineages. In mammals, …

Background Geolocators are useful for tracking movements of long-distance migrants, but
potential negative effects on birds have not been well studied. We tested for effects of …