Ph.D. Robert Sheath
Ph.D. Robert Sheath
Professor of Biological Sciences

Office: Science Hall 2 133
Phone: (760) 750-8023
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Ph.D. Robert Sheath

Dr. Sheath’s research interests focus on aquatic biology with emphasis on the evolution, ecology, biogeography and systematics of the algae and their use as water quality indicators.  This research involves a combination of field and laboratory work, including advanced microscopy and molecular analyses. Dr. Sheath is also the past Editor of the Journal of Phycology, one of the most cited journals in the field and aquatic botany in general. An algal genus was named in his honor, Sheathia, published in Journal of Phycology 50, 526–542, 2014 and it is distributed in North America, Europe and New Zealand. The lab was named “California Primary Algae Lab” by the California Water Board because it has the expertise, including adding considerably to the state flora, naming 4 new species to science and creating a widely accessible web site.


Education

Ph.D., 1977: University of Toronto

B.Sc., 1973, University of Toronto


Courses Taught

BIOL 318 –  Plants and Society
BIOL 381 –  Plant Diversity
BIOL 381L–  Plant Diversity Lab
BIOL 382  – Biogeography
BIOL 389  – Freshwater Biology
BIOL 565  – Seminar in Ecology
BIOL 600  – Scientific Communication


Recent Publications

Sheath, R.G. and M.L. Vis. 2014. Red Algae: In: Freshwater Algae of North America: Ecology and Classification. 2nd ed. (ed. By J.D. Wehr, R.G. Sheath and J.P. Kociolek), Academic Press, San Diego. In Press.

Sheath, R.G. and J.D. Wehr. 2014. Introduction to the freshwater algae. In: Freshwater Algae of North America: Ecology and Classification. 2nd  ed. (ed. By J.D. Wehr, R.G. Sheath and J.P. Kociolek), Academic Press, San Diego. In Press.

Wehr, J.D. and R.G. Sheath. 2014. Freshwater habitats: In: Freshwater Algae of North America: Ecology and Classification. 2nd ed. (ed. By J.D. Wehr, R.G. Sheath and J.P. Kociolek), Academic Press, San Diego. In Press.

Shea, T.B., R. G. Sheath, A. Chhun, M.L. Vis, W.B. Chiasson and K.M. Müller. 2014. Distribution, seasonality and putative origin of the non-native red alga Bangia atropurpurea (Bangiales, Rhodophyta) in the Laurentian Great Lakes. Journal of Great Lakes Research 40: 27-34.

Fetscher A.E., R. Stancheva, J.P. Kociolek, R.G. Sheath, E.D. Stein, R.D. Mazor, P.R. Ode, L.B. Busse. 2014. Development and comparison of stream indices of biotic integrity using diatoms vs. non-diatom algae vs. a combination. Journal of Applied Phycology 26:433–450.

Stancheva, R., J.D. Hall , K. Herburger, L.A. Lewis, R.M. McCourt, R.G. Sheath and A. Holzinger. 2014. Phylogenetic position of Zygogonium ericetorum (Zygnematophyceae, Charophyta) from a high alpine habitat and ultrastructural characterization of unusual aplanospores. Journal of Phycology 50. In press.

Stancheva, R., R.G. Sheath, B.A. Read, K.D. McArthur, C. Schroepfer, P.A. Kociolek and A.E. Fetscher. 2013. Nitrogen-fixing cyanobacteria (free-living and diatom endosymbionts): their use in southern California stream bioassessment. Hydrobiologia 720:111–127.

Stancheva, R., J. D. Hall, R.M. McCourt and R.G. Sheath. 2013. Identity and phylogenetic placement of Spirogyra species (Zygnematophyceae, Charophyta) from California streams and elsewhere. Journal of Phycology 49: 588-607.

Wehr, J.D., R. Stancheva, K. Truhn, and R. G. Sheath. 2013. Discovery of the rare        freshwater brown alga Pleurocladia lacustris (Ectocarpales, Phaeophyceae) in California streams. Western North American Naturalist 73:148-157.

Sheath, R.G. and M.L. Vis. 2013.  Biogeography of freshwater algae. Version 3. In: Encyclopedia of Life Sciences.  John Wiley & Sons. 14 pp. http://www.els.net.