Acknowledgements
We would like to thank Sonia González-Braojos and Alicia Rodríguez-Juncá for help during fieldwork, and Emilio García Juárez for labwork analyses. We also thank Daniel Díaz and Alejandra Mira (from the Centro de Gestión del Parque Regional de la Cuenca Alta del Río Manzanares) for logistic support. The study was financed by the Ministerio de Economía y Competitividad MINECO, Spain (project grants CGL2016-79390-P and PID2019-106032GB-I00 to J. Morales) funded by MCIN/AEI/https://doi.org/10.13039/501100011033 and by “ERDF A way of making Europe”. JG-C was supported by Grant BES-2017-079750 and JM by a Ramón y Cajal contract RYC-2014-15145 funded by MCIN/AEI/ https://doi.org/10.13039/501100011033 and “ESF Investing in your future”.
Author Contributions : JM, WM and JGC conceived and designed the study. JGC, JM, SGB and ARJ performed the fieldwork. EGJ and ARJ performed laboratory analyses. JGC, JM, WM analysed the data. JGC, JM and WM wrote the manuscript.
Disclosure statement: Authors declare that they have no conflict of interest.