_:b1218016 "ORCID:0000-0002-4366-3088"^^ . _:b1218016 . _:b1218016 . _:b1218016 "A portion of environmental material is a fiat object which forms the medium or part of the medium of an environmental system."^^ . _:b1218016 . _:b1218016 "URL:http://ontology.buffalo.edu/smith/articles/niches.html"^^ . _:b1218016 "DOI:10.1186/2041-1480-4-43"^^ . _:b1218016 "MA:ma"^^ .