The document discusses a presentation about the presence of nature and the environment in the literary works of Portuguese writer Ferreira de Castro. Specifically, it analyzes how six introductory texts ("Pórticos") to his novels depict Portuguese and Brazilian landscapes, and the extent to which they reflect ecological and human ecology concepts. It provides context on ecocriticism and human ecology as cross-disciplinary lenses for analyzing literature. Finally, it outlines Ferreira de Castro's 10 novels set in various regions of Portugal and Brazil from 1928 to 1974, noting how his fiction explored the vital dependence between nature, people, and the earth.