|Title||The consequences of nonselective periodic removal of portions of fresh-water protozoan communities|
|Publication Type||Journal Article|
|Year of Publication||1971|
|Authors||Jr. JCairns, Dickson KL, Jr. WHYongue|
|Journal||Transactions of the American Microscopical Society|
The effects on protozoan communities of periodic harvesting was studied with protozoa colonizing polyurethane substrates in the epilimnion of Douglas Lake, Michigan. Harvesting the substrates by squeezing almost always resulted in an increase in the number of species present when previously harvested substrates were compared with previously unharvested substrates. Thus the perturbation associated with harvesting increased the number of colonizing species.