| http://www.w3.org/ns/prov#value | - rs and other development in the last 50 years.???Only 25 percent remains of an ecosystem that once was a third larger than the continental United States,??? co-author Stuart Pimm, a Duke conservation ecology professor, said in a statement issued with the study.???The situation in West Africa is particularly dire,??? the experts wrote, noting that human populations have doubled there over the last
|
