CONDUCTA DISTRIBUCIONAL DE CORMORÁN YECO (Phalacrocorax brasilianus) MEDIANTE SEGUIMIENTO SATELITAL. REGION DE ANTOFAGASTA, CHILE
MERCURY (Hg), LEAD (Pb) AND ARSENIC (As) AND THEIR RELATIONSHIP WITH BODY MASS IN Dendrocygna autumnalis, Platalea ajaja AND Phalacrocorax brasilianus IN THE MOJANA REGION, COLOMBIA.