To better understand and predict effects of climate change on wetlands, invertebrates and shorebirds, the ‘CEWISH’ group,composed of Cryohydrology, Invertebrate, Shorebird Food Use, and Shorebird/Population Modeling teams, collected fielddata at Barrow, Alaska, between May and September 2014–2015. The Cryohydrology team measured end-of-wintersnow accumulation, snowmelt at the landscape scale, pond water levels, and pond water and sediment temperatures. TheInvertebrate team monitored emergence at historic ponds, and documented emergence rates of dominant chironomid taxaunder different experimentally controlled thermal regimes. The Shorebird Food Use team developed a DNA library ofpotential prey items using samples collected in the field and other on-line library resources, and is analyzing fecal samplesto determine prey consumed by shorebird chicks. The Shorebird/Population Modeling team monitored invertebrateemergence, nest initiation and hatch of shorebird nests, collected fecal samples from adults and chicks to determine preyeaten, and monitored growth of young from natural and experimentally manipulated nests that mimicked nests hatching inand out of synchrony with invertebrate emergence. We have compiled and summarized all the data from the 2014 and2015 field seasons, and publications are forthcoming (2017).
