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Protozoan species accrual on artificial islands in differing lentic and wetland systems. Hydrobiologia. 75:161-178.. 1980.
Survival of Euglena gracilis exposed to sublethal temperature and hexavalent chromium. Journal of Protozoology. 26:122-125.. 1979.
The role of flagellates in pioneer protozoan colonization of artificial substrates. Polskie Archiwum Hydrobiologii. 25:787-801.. 1978.
Factors affecting the number of species in freshwater protozoan communities. Aquatic Microbial Communities. :257-304.. 1977.
Colonization of artificial substrates by protozoa: replicated samples. Archiv fur Protistenkunde. 118:259-267.. 1976.
A comparison between numbers and kinds of freshwater protozoans colonizing autoclaved and unautoclaved polyurethane substrates. Applied and Environmental Microbiology. 31:750-753.. 1976.
The effects of substrate quality upon colonization by freshwater protozoans. Revista de Biologia. 10(1-4):13-20.. 1976.
The influence of natural perturbation on protozoan communities inhabiting artificial substrates. Transactions of the American Microscopical Society. 95:646-653.. 1976.
Qualitative differences in protozoan colonization of artificial substrates. Hydrobiologia. 51:233-237.. 1976.
Vertical gradients in artificial substrate-associated protozoan community structure in a stratified freshwater lake. Journal of the Elisha Mitchell Scientific Society. 92:1-8.. 1976.
Protozoan colonization rates on artificial substrates suspended at different depths. Transactions of the American Microscopical Society. 93:206-210.. 1974.
A comparison of fresh-water protozoan communities in geographically proximate but chemically dissimilar bodies of water. Archiv fur Protistenkunde. 115:154-161.. 1973.
The effect of an influx of new species on the diversity of protozoan communities. Revista de Biologia. 9:187-206.. 1973.
Long term exposure of artificial substrates to colonization by protozoans. Journal of the Elisha Mitchell Scientific Society. 81:115-119.. 1973.
The protozoan colonization of polyurethane foam units anchored in the benthic area of Douglas Lake, Michigan. Transactions of the American Microscopical Society. 92:648-656.. 1973.
The relationship between number of protozoan species and duration of habitat immersion. Revista de Biologia. 9:35-42.. 1973.
Colonization of polyurethane substrates by fresh-water protozoans. Journal of the Elisha Mitchell Scientific Society. 87:71-72.. 1971.
The consequences of nonselective periodic removal of portions of fresh-water protozoan communities. Transactions of the American Microscopical Society. 90:71-80.. 1971.
Micro-habitat pH differences from those of the surrounding water. Hydrobiologia. 38:453-461.. 1971.
An observation on the protozoan communities in the bottom sediments of Lake Huron. Revista de Biologia. 7:151-153.. 1970.
The distribution of fresh-water protozoa on a relatively homogeneous substrate. Hydrobiologia. 31:65-72.. 1968.
Amebae in forty-eight hours. The American Biological Teacher. 28:108-111.. 1966.
A checklist of the fresh-water protozoa of the Douglas Lake region, Michigan. Notulae Naturae of the Academy of Natural Sciences of Philadelphia. 383:1-10.. 1966.
A condition in blood cells of Natrix with reference to Cytamoeba and Toddia. II. Mechanical transmission. Journal of the Elisha Mitchell Scientific Society. 81. 1965.
A condition in blood cells of Natrix with reference to Cytamoeba and Toddia. I. Description. Journal of the Elisha Mitchell Scientific Society. 80(2). 1964.