Why are tropical mountain passes ‘low’ for some species? Genetic and stable-isotope tests for differentiation, migration, and expansion in elevational generalist songbirds
C. R. Gadek, S. D. Newsome, E. J. Beckman, A. N. Chavez, S. C. Galen, E. Bautista, C. C. Witt
This paper investigates elevational generalism in tropical songbirds, finding genetic divergence, seasonal movements, and recent expansions in three out of four species.
bioRxiv · Jul 17, 2017Evolutionary Biology