... in their ‘osmoregulatory machinery’, but the metabolic consequences of salinity acclimatization are still not well understood. We investigated the effects of salinity on basal metabolic rate (BMR), body mass and daily energy consumption of a long-distance migratory shorebird, the dunlin ( Calidris alpina ), outside...

...Robert E. Ricklefs; Joseph B. Williams SUMMARY We developed a protocol for determining the maximum rate of oxygen consumption of shorebird chicks (Scolopacidae and Charadriidae) in response to cold challenge. We first subjected the chicks to gradually decreasing temperatures until their metabolism...

...George S. Bakken; Joseph B. Williams; Robert E. Ricklefs SUMMARY Wind is a significant factor in the thermoregulation of chicks of shorebirds on the Arctic tundra. We investigated the effect of wind at speeds typical of near-surface conditions (0.1-3 ms -1 ) on metabolic heat production...

... to daily changes in weather. The behavioral responses of shorebirds to winter storms are known to include movements to sheltered or more profitable feeding areas ( Evans, 1976 ; Connors et al., 1981 ; Warnock et al., 1995 ; Kelly, 2001 ), but whether responses to short-term changes in weather might...

... information are needed for sanderlings to realize a seasonally appropriate migratory orientation. * Author for correspondence (e-mail: Roland.Sandberg@zooekol.lu.se ) 18 7 2000 26 9 2000 © 2000 by Company of Biologists 2000 shorebird migration orientation geomagnetic field...