%0 Journal Article %J Oecologia %D 2017 %T Extreme spring conditions in the Arctic delay spring phenology of long-distance migratory songbirds %A Natalie T. Boelman %A Jesse S. Krause %A Shannan K. Sweet %A Helen E. Chmura %A Jonathan H. Perez %A Laura Gough %A John C. Wingfield %K ) Lapland longspur (Calcarius lapponicus) %K Arctic seasonality %K climate change %K Gambel’s white-crowned sparrow (Zonotrichia leucophrys gambelii %K phenology %B Oecologia %V 185 %P 69 - 80 %8 09/2017 %G eng %U https://link.springer.com/article/10.1007%2Fs00442-017-3907-3 %N 1 %! Oecologia %R 10.1007/s00442-017-3907-3