Méndez González, César Ernesto Influence of seed resources on the diet, seed selection and community dynamics of wintwring birds in semi-arid grasslands César Ernesto Méndez González - xv111, 112 h. il. 28 cm. Tesis (Doctorado), New Mexico State University Incluye: Bibliografías Subjects--Topical Terms: Manejo de recursos naturales Dewey Class. No.: T / MEN 2010