[1] CONICET Univ Nacl Comahue, Grp Ecol Polinizac ECOPOL, Inst Invest Biodivers & Medio Ambiente INIBIOMA, San Carlos De Bariloche, Rio Negro, Argentina
[2] Univ Nacl Rio Negro, Inst Invest Recursos Nat Agroecol & Desarrollo Rur, San Carlos De Bariloche, Rio Negro, Argentina
[3] Consejo Nacl Invest Cient & Tecn, Inst Invest Recursos Nat Agroecol & Desarrollo Rur, San Carlos De Bariloche, Rio Negro, Argentina
[4] Mediterranean Inst Adv Studies, Global Change Res Grp, Mallorca, Spain
[5] UK Ctr Ecol & Hydrol, Biodivers, Wallingford, Oxon, England