Parasites can it seems stabilize and regulate populations of their hosts, but it has proved tough to find evidence of the process in natural conditions. An example now comes from analysis of a finch population in the United States, which has become infected by a bacterium causing eye disease.
机构:
Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, EnglandUniv Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England