The present work was carried out in the lacustrine basin of Metztitlan, Hgo., three sampling of recent sediments were realized in November (2001), April and July (2002) and the organisms of the genus Oreochromis sp were evaluated in April and July (2002). The analyses did following the methodology proposed by...
From literature review, consult a scientific and fieldwork collections, updated the list of wild mammals of the Lake of Xochimilco in Mexico City. 17 species were recorded, of which three species reported in literature, between 1953 and 1980 are added, but no longer were found in the field. That includes...