Spatial Isolation and Temporal Variation in Fitness and Condition Facilitate Divergence in a Migratory Divide Hermes, Claudia ; Mettler, Raeann ; Santiago-Alarcon, Diego ; Segelbacher, Gernot ; Schaefer, H. Martin Abstract Publication: PLoS ONE Pub Date: December 2015 DOI: 10.1371/journal.pone.0144264 Bibcode: 2015PLoSO..1044264H