About: http://webisa.webdatacommons.org/166147594

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The Park Service says, ???Scientists have investigated the role of other causative factors in their decline, such as acid deposition, UV-B radiation, and disease, but predation is clearly the main problem.
http://www.w3.org/ns/prov#wasQuotedFrom	sundance.tv