Videos
Leafy Spurge
Autor
WGBH Educational Foundation
Clear Blue Sky Productions
Resumen
This video segment from Evolution: "Extinction!" explores the invasion of western U.S. grasslands by a Eurasian weed called leafy spurge. Brought to this country in the 1800s, leafy spurge has progressively taken over grazing land from the native grasses. Ranchers have begun to eradicate the weed, using one of its natural enemies: the flea beetle. Componente Curricular::Ensino Médio::Biologia Componente Curricular::Educação Profissional::Recursos Naturais Componente Curricular::Educação Superior::Ciências Biológicas::Ecologia