GEOG 6 Lecture Notes - Lecture 4: Dominican Republic National Basketball Team, Arawak, Totalitarianism
Document Summary
Physical geo argentina, chile, uruguay - temperate zones rest is tropics. Biogeography neotropical up to isthmus confined mammals: sloth, vampire bat, anteater, porcupine, peccaries, opossums, armadillos get into us a little many birds migrated to us: songbirds, hummingbirds, tangirs some strictly neotropical: toucans have 1/6 of world"s bird species. Nothofagus group of beech trees in australia and south america. 180 million y/a, gondwanaland split into s am, af, aus, nz, antarctica tree was widespread on gondwanaland no longer in af - not cold enough. 8m y/a, sloths got into n am and s am had raccoons when new islands arose where c am is, animals could swim across. 2 theories: human arrival weren"t wary of humans, very tame and easy to kill overkill hypothesis climate change megafauna of caribbean (6 ft tall owls) went extcint 6k y/a, when humans arived there.
