Climate warming challenges animals to advance their timing of reproduction [1], but many
animals appear to be unable to advance at the same rate as their food species [2, 3]. As a …

According to migration theory and several empirical studies, long‐distance migrants are
more time‐limited during spring migration and should therefore migrate faster in spring than …

North American bison (Bison bison) are becoming increasingly important to both grassland
management and commercial ranching. However, a lack of quantitative data on their diet …

Technological advancements have spurred rapid growth in the study of migratory
connectivity, the linkage of individuals and populations between seasons of the annual …

Within three decades, the barnacle goose population wintering on the European mainland
has dramatically increased in numbers and extended its breeding range. The expansion has …

Many migrating herbivores rely on plant biomass to fuel their life cycles and have adapted to
following changes in plant quality through time. The green wave hypothesis predicts that …

Despite observational evidence of carry-over effects (COEs, events occurring in one season
that produce residual effects on individuals the following seasons), to our knowledge no …

Arctic amplification, the accelerated climate warming in the polar regions, is causing a more
rapid advancement of the onset of spring in the Arctic than in temperate regions …

'The ability of the birds to show us the consequences of our own actions is among their most
important and least appreciated attributes. Despite the free advice of the birds, we do not …

Summary 1 Since the early 1990s, an increasing proportion of barnacle geese, Branta
leucopsis, bound for breeding sites in the Russian Arctic delay their departure from the …