ARIDITY AND OVERGRAZING HAVE CONVERGENT EFFECTS ON ECOSYSTEM STRUCTURE AND FUNCTIONING IN PATAGONIAN RANGELANDS - Gaitan, Juan J.; Bran, Donaldo E.; Oliva, Gabriel E.; Aguiar, Martin R.; Buono, Gustavo G.; Ferrante, Daniela; Nakamatsu, Viviana; Ciari, Georgina; Salomone, Jorge M.; Massara, Virginia; Garcia Martinez, Guillermo; Maestre, Fernando T.; (Land Degradation & Development, 2018)