bbs_cicada_data

This file contains the original BBS data for the 15 bird species used in the analyses along with the associated cicada brood data. Each line contains the following data: SPECIES (AOU number), STATE, ROUTE, OBSNUM {observer number), LATitude, LONGitude, YEAR, BIRDS (N birds observed), log-transformed N birds, N birds standardized to mean of 0 and SD=1, YRSFRMEM (years from the last emergence), TYPE (13-year or 17-year), BROOD number, NYEARS (of data for that site overall), EMEVENT (whether the data for that site includes an emergence year or not), EMALL (whether the data for that site includes values for all years of the relevant cicada cycle), XMASS (mass of the bird species).