Habitat loss and distribution of the Ornate Horned Frog (Ceratophrys ornata): implications for its conservation in South American temperate grasslands oleh Camila Deutsch, David Norberto Bilenca, Juan Pablo Zurano, Luis Fernando Marin da Fonte, Natália Dallagnol Vargas, Andreas Kindel, Renan Pittella, Marcelo Duarte Freire, Raúl Maneyro, Julián Faivovich, María Gabriela Agostini