During spring migration, herbivorous waterfowl breeding in the Arctic depend on peaks in the supply of nitrogen-rich forage plants, following a "green wave" of grass growth along their flyway to fuel migration and reproduction. The effects of climate warming on forage plant growth are expected to be larger at the Arctic breeding grounds than in temperate wintering grounds, potentially disruptin...

Shorebirds are among the most migratory of all birds and spend the majority of the year in a small number of essential wintering and migratory staging areas. As these birds take no notice of political borders, their conservation represents an international challenge (Myers 1983, Myers et al. 1987, Morrison & Myers 1989), one whose importance is emphasized by recent declines in North American sh...

Despite an increase in conservation efforts for shorebirds, there are widespread declines of many species of North American shorebirds. We wanted to know whether these declines would be exacerbated by climate change, and whether relatively secure species might become at-risk species. Virtually all of the shorebird species breeding in the USA and Canada are migratory, which means climate change ...

Capsule Migration associations by Eurasian Curlews Numenius arquata are temporary and last for single flight bouts between stopover sites.Aims Migrant shorebirds known to initiate migration communally, with groups of birds departing simultaneously from wintering or post-breeding fuelling sites, though the duration such migratory is not known.Methods Wintering breeding adult Curlews, some hand-r...

The production of young, mated honeybee queens (Apis mellifera) is essential to replace dead or start new colonies after wintering. Mass storage during winter and their use the following spring an interesting strategy that could help fulfill this need. In study, we investigated survival, fertility, fecundity stored massively in queenless from September April (eight months). were kept environmen...

22 In this paper the realized niche of the Snowy Plover (Charadrius alexandrinus), a 23 primarily resident Florida shorebird, is described as a function of the scenopoetic and 24 bionomic variables at the nest-, landscape-, and regional-scale. We identified some pos25 sible geomorphological controls that influence nest-site selection and survival using data 26 collected along the Florida Gulf c...

Migratory bird needs must be met during four phases of the year: breeding season, fall migration, wintering, and spring migration; thus, management may be needed during all four phases. The bulk of research and management has focused on the breeding season, although several issues remain unsettled, including the spatial extent of habitat influences on fitness and the importance of habitat on th...