Acknowledgements
We would like to express our thanks to the many people who collaborated
in fieldwork, sample processing and data analysis over time. Research in
this paper is based on the PASTUS database, which was compiled from
different funding sources over time, the most relevant being: the EU
Interreg III- A Programme (I3A- 4- 147- E) and the POCTEFA
Programme/Interreg IV- A (FLUXPYR, EFA 34/08); the Spanish Science
Foundation FECYT- MICINN (CARBOPAS: REN2002- 04300- C02- 01;
CARBOAGROPAS: CGL2006- 13555- C03- 03 and CAPAS: CGL2010- 22378- C03-
01); the Foundation Catalunya- La Pedrera and the Spanish Institute of
Agronomical Research INIA (CARBOCLUS: SUM2006- 00029- C02- 0). This work
was funded by the Spanish Science Foundation FECYT- MINECO (BIOGEI:
GL2013- 49142- C2- 1- R) and the University of Lleida (PhD Fellowship to
AR).