About: http://webisa.webdatacommons.org/92815582

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	It is possible that high population density alone is a major contributing factor, although among our cases, 4 of the 13 periods that immediately preceded dramatic transformations had relatively low population density.
http://www.w3.org/ns/prov#wasQuotedFrom	ecologyandsociety.org