Data from: Assortative flocking in crossbills and implications for ecological speciation

Julie W. Smith, Stephanie M. Sjoberg, Matthew C. Mueller & Craig W. Benkman
How reproductive isolation is related to divergent natural selection is a central question in speciation. Here we focus on several ecologically specialised taxa or “call types” of red crossbills (Loxia curvirostra complex), one of the few groups of birds providing much evidence for ecological speciation. Call types differ in bill sizes and feeding capabilities, and also differ in vocalizations, such that contact calls provide information on crossbill phenotype. We found that two call types of...
1 citation reported since publication in 2012.
129 views reported since publication in 2012.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?
20 downloads reported since publication in 2012.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?