Environment Ontology
Ontology for environments — biomes, environmental features, materials. Links organisms to habitats.
Visit WebsiteBrowse the tree, filter it, or click any class to see just its corner of it.
Where this one tends to earn its keep.
Metagenomic sample environment annotation
Ecological niche modeling data
Biodiversity database habitat classification
Environmental impact assessment data
I haven't checked this label against the actual licence text — it's the catalogue's original guess. Check the ontology's own site before you rely on it.
Others worth a look in Life Sciences.