Table S1 - Evidence of Latitudinal Migration in Tri-colored Bats, Perimyotis subflavus

Collection and stable isotope data for all specimens. Each bat is identified with a museum-specific abbreviation (CU - Cornell University Museum of Vertebrates, Ithaca, NY; LSUMZ - Louisiana State University Museum of Natural Science, Baton Rouge, LA; MCZ – Harvard University Museum of Comparative Zoology, Cambridge, MA; ROM - Royal Ontario Museum, Toronto, ON) and its associated catalog number. Collection coordinates for each specimen are included in decimal degrees. For some specimens, exact collection coordinates were available. For specimens where exact collection data were not available, coordinates for the centroid of the county of collection were used and reported below (obtained from the United States Geological Survey Geographic Names Information System (http://geonames.usgs.gov/domestic/, accessed September 2010). Predicted growing season δDprecip values were obtained from waterisotopes.org [40], [44]. All stable isotope data are reported in ‰ relative to VSMOW. F = female; M = male. (DOC)