Author contributions
M.S.-P., B.O.-B. and S.L.-H. drew up the research design. M.S.-P., B.O.-B. and S.L.-H. developed the study and coordinated the fieldwork. B.O.-B. made the analysis. F.M.-L., M.D.-G., and R.S.-R. have helped with project coordination. M.S.-P. and B.O.-B. wrote the manuscript. B.O.-B. is the principal researcher for the project. All authors reviewed the manuscript content and approved the final version for submission. Not applicable given that the data are anonymous and no individual images are presented.