Robert Wallace

Robert Wallace

Professor of Biology, The Patricia and Philip McCullough 1969 Professor in Biology

[email protected]
Office: Farr 218

  • Basic Information
  • Awards & Honors
  • Publications
  • Areas of Interest
  • Presentations
  • Professional Experience

Basic Information


  • 1970 B.S. University of Rhode Island, Kingston, Rhode Island (major Zoology; minor Chemistry)
  • 1975 Ph.D. Dartmouth College, Hanover, New Hampshire (Aquatic Ecology; Invertebrate Zoology)
  • 1975-1977 Postdoctoral Fellowship (Aquatic Ecology), University of Washington, Seattle, Washington

Courses Taught

  • Biology 110 – Topics in Biology: Plagues (non-majors)
  • Biology 121 – Introductory Biology
  • Biology 200 – Scientific Writing and Communication
  • Biology 215 – Invertebrate Zoology
  • Biology 247 – General Ecology
  • Biology 338 – Aquatic Ecology
  • Biology 450 – Intensive Field Studies
  • Biology 501,502 – Independent Study

Awards & Honors

  • Teaching Awards — Severy Teaching Professor (1981, 1982, 1993, 1996, 2006); Underkofler award for Excellence in Undergraduate Teaching (2001, 2015); Ripon College nominee for the CASE Professor Award (1994, 2001, 2014).
  • Professional Memberships — American Association for the Advancement of Science; American Microscopical Society; American Society of Limnology and Oceanography; Association of College and University Biology Educators; Ecological Society of America; International Carnivorous Plant Society; Societas Internationalis Limnologiae. Honorary Societies– Phi Kappa Phi (Academic Honor Society); Phi Sigma Society (Biological Academic Honor Society); Sigma Xi (the Scientific Research Society of N.A.)

Grants Awarded

  • 1975 Ecology of Sessile Rotifers (W.T. Edmondson & R.L. Wallace, co-principal investigators) N.S.F. BMS 75-03107.
  • 1977 Above renewed. DEB 75-03175 A01.
  • 1980 Small-College, Faculty Supplement Award to Research Grant DEB 78-02882; R.L. Wallace, Small-College Faculty Member.
  • 1981 Above renewed.
  • 1982 Clearance Rate of Sessile Rotifers. American Philosophy Society, Research Grant. (Penrose-21000).
  • 1984 Acquisition of research microscopes and accessories. NSF-RUI grant for research microscopes and related materials; BSR-8405157.
  • 1988 Distribution of the Gregarine Parasite Monocystis in the EarthwormLumbricus terrestris. Associated Colleges of the Midwest Minority Scholar Grant to J. Hayashi (R.L. Wallace, mentor).
  • 1989 Above renewed. Associated Colleges of the Midwest.
  • 1989 Aquatic Research. Bing Farms, Inc. R.L. Wallace.
  • 1992 Unpalatability of a colonial rotifer, Sinantherina socialis, to small zooplanktivorous fishes. Associated Colleges of the Midwest Minority Scholar Grant to A. Felix (R.L. Wallace, mentor).
  • 1999 Ripon College, Professional Collaboration Grant: Limnological Investigations on Green Lake (Green Lake, WI).
  • 2001 Ripon College, Professional Development Grant: Rotifer Taxonomy.
  • 2003 Ripon College, Professional Collaboration: Limnological Investigations on White Lake (Marquette Co., WI).
  • 2004 WISC Grant to Drs. E.J. Walsh (PI) & R.L. Wallace (Co-PI). Life on the Edge: Community Structure of Basal Microinvertebrate Consumers in Endangered Springs and Ephemeral Waters of the Chihuahuan Desert (U.S. & Mexico).
  • 2004 Ripon College, Professional Collaboration Grant: Limnological Investigations on White Lake.
  • 2005 Associated Colleges of the Midwest, FaCE Project: Enhancing scholarship and teaching in one bite.
  • 2005 National Science Foundation: Community composition and phylogeography of microinvertebrates of Chihuahuan Desert waters (U.S. and Mexico). (Dr. E.J. Walsh with UTEP as lead institution.) 2006, 2007, 2008, 2009 – supplemental awards for undergraduate researchers.
  • 2009 Carnivory in the aquatic plant Utricularia macrorhiza McNair Grant to B. Wiggins (R.L. Wallace, mentor).
  • 2009 Nitrogen and phosphorous levels in the sediments of Bing Lake. McNair Grant to S. Anderson (R.L. Wallace, mentor).
  • 2010 The Impact of Biological Invasions. Ethical Leadership Grant to L. Kelly (R.L. Wallace, mentor).
  • 2012 Ripon College, Trustee Grant: 3-D visualization of rotifer trophi. Ripon’s 3D printer.
  • 2013 National Science Foundation (DEB 1257116): Collaborative Research: Integrating genetics, life history, and morphology to understand the diversification of an enigmatic metazoan lineage. 2013–2017. (Drs. E.J. Walsh (UTEP), R. Hochberg (UML), and R.L. Wallace (Ripon).
  • 2014 National Science Foundation (CHE 1429616): MRI: Acquisition of a Liquid Chromatography/Mass Spectrometer for Accurate-Mass Determination and Complex Mixture Analysis. (Drs. P.H. Willoughby, C.M. Bryon, and R.L. Wallace.



(* = student co-authors)

  • Rivas, J. A., Jr., J. Mohl, R. S. Van Pelt, M.-Y. Leung, R. L. Wallace, T. E. Gill, and E. J. Walsh. 2018. Data for evidence for regional aeolian transport of freshwater micrometazoans in arid regions. UTEP Bioinformatics Data Repository. (Last accessed: 2018.02.02)
  • Rivas, J.A. Jr., J. Mohl, R.S. Van Pelt, M.-Y. Leung, R.L. Wallace, T.E. Gill &, E.J. Walsh. (accepted). Evidence for regional aeolian transport of freshwater micrometazoans in arid regions. Limnology and Oceanography - Letters
  • Serra, M., T. Snell, and R.L. Wallace (in press). Rotifera, in Encyclopedia of Reproduction. Elsevier.
  • Mills, S., J.A. Alcántara-Rodríguez, J. Ciros-Pérez, A. Gómez, A. Hagiwara, K.H. Galindo, C.D. Jersabek, R. Malekzadeh-Viayeh, F. Leasi, J.-S. Lee, D.B. Mark Welch, S. Papakostas, S. Riss, H. Segers, M. Serra, R. Shiel, R. Smolak, T.W. Snell, C.-P. Stelzer, C.Q. Tang, R.L. Wallace, D. Fontaneto, & E.J. Walsh. 2017. Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy. Hydrobiologia 796: 39–58.
  • Walsh, E.J., L. May, & R.L. Wallace. 2017. A metadata approach to documenting sex in phylum Rotifera: diapausing embryos, males, and hatchlings from sediments.Hydrobiologia 796: 265–276.
  • Sarma, S.S.S., M.A. Jiménez-Santos, S. Nandini, & R.L. Wallace. 2017. Demography of the sessile rotifers, Limnias ceratophylli and Limnias melicerta (Rotifera: Gnesiotrocha), in relation to food (Chlorella vulgaris Beijerinck, 1890) density. Hydrobiologia 796: 181–189.
  • Allen, R.L.*, R.L. Wallace, & B.E. Sisson. 2016. A rotifer based technique to rear zebrafish larvae in small academic settings. Zebrafish 13(4): 281–286.
  • Walsh, E.J. May, L., and Wallace, R.L. 2016. A metadata approach to documenting sex in phylum Rotifera: diapausing embryos, males, and hatchlings from sediments. Hydrobiologia. Online doi: 10.1007/s10750-016-2712-z.
  • Mills, S. Alcántara-Rodríguez, J.A., Ciros-Pérez, J., Gómez, A., Hagiwara, A., Galindo, K.H., Jersabek, C.D., Malekzadeh-Viayeh, R., Leasi, F., Lee, J.-S., Mark Welch, B., Papakostas, S., Riss, S., Segers, H., Serra, M., Shiel, R., Smolak, R., Snell, T.W., Stelzer, C.-P., Tang, C.Q., Wallace, R.L., Fontaneto, D., & Walsh, E.J. (Print, in press). Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy. Hydrobiologia. Online doi: 10.1007/s10750-016-2725-7.
  • Hochberg, R., E.J. Walsh, & R.L. Wallace. (Print, in press). On the ultrastructure of an unusual ambush predator, Cupelopagis vorax (Rotifera: Monogononta: Collothecaceae; Atrochidae). Invertebrate Biology. (Online: in press).
  • Segers, H., W.H. De Smet, D. Fontaneto, C. Hinz, C. Hussey, E. Michaloudi, R.L. Wallace, and C.D. Jersabek 2015. Period of public commentary begins on the revised proposal of species-group level names, and on the proposal of genus-group level names of the Candidate Part of List of Available Names (LAN) in the phylum Rotifera. European Journal of Taxonomy 165: 1–3.
  • Wallace, R.L. and H.A. Uyhelji (Smith). 2015. Rotifera, Reference Module in Earth Systems and Environmental Sciences. ISBN: 978-0-12-409548-9 Earth Systems and Environmental Sciences. doi: 10.1016/B978-0-12-409548-9.09551-8.
  • Wallace, R.L. 2015. SIL hotnews. Notatio naturae, et animadversio perperit artem. (Art is born of the observation and investigation of nature), Cicero. SILnews 67: 4.
  • Wallace, Robert L, S.S.S. Sarma, and S. Nandini. 2015. 14th International Rotifer Symposium: A Report. SILnews 67: 6–7.
  • Wallace, R.L. et al. (in press) Chapter 8. Phylum Rotifera. In Thorp, J. & Rogers. C. (eds.) Keys to Nearctic freshwater invertebrates (protozoa through arthropods). Elsevier. (electronic publication)
  • Wallace, R.L. and Uyhelji (Smith), H.A. (in press). Rotifera. Earth Systems and Environmental Sciences. Elsevier. (electronic publication)
  • Hochberg, R., Wallace, R.L., and Walsh, E. 2015. Soft bodies, hard jaws: An introduction to the symposium with rotifers as models of jaw diversity. Integrative and Comparative Biology 55(2): 179–192. doi:10.1093/icb/icv002
  • Wallace, R.L. 1975. Larval behavior of the sessile rotifer Ptygura beauchampi(Edmondson). Verh. Internat. Verein. Limnol. 19: 2811–2815.
  • Wallace, R.L. 1977a. Distribution of sessile rotifers in an acid bog pond. Arch. Hydrobiol.  79(4): 478–505.
  • Wallace, R.L. 1977b. Adaptive advantages of substrate selection by sessile rotifers. Arch. Hydrobiol. Beih. 8: 53–55.
  • Wallace, R.L. 1977c. Substrate discrimination by larvae of the sessile rotiferPtygura beauchampi Edmondson. Freshwat. Biol. 7: 301–309.
  • Wallace, R.L. 1978. Substrate selection by larvae of the sessile rotifer Ptygurabeauchampi. Ecology 59: 221–227.
  • Wallace, R.L. 1980. Ecology of sessile rotifers. Hydrobiologia 73: 181–193.
  • Wallace, R.L. & Starkweather, P.L. 1983. Clearance rates of sessile rotifers: in situ determinations. Hydrobiologia.  104: 379–383.
  • Wallace, R.L. & Starkweather, P.L. 1985. Clearance rates of sessile rotifers: in vitro determinations. Hydrobiologia.  121: 139–144.
  • Wallace, R.L. & Edmondson, W.T. 1986. Mechanism and adaptive significance of substrate selection by the sessile rotifer Collotheca gracilipes. Ecology 67 (2): 314–323.
  • Wallace, R.L. 1987. Coloniality in the phylum Rotifera. Hydrobiologia. 147: 141–155.
  • Wallace, R.L. 1988. Use of a local information retrieval system (DATATRIEVE) by undergraduates.  Bioscene 14(1): 31–33. <NB: a peer reviewed, regional journal dedicated to college biology teaching.>
  • Wallace, R.L. & Colburn, R.A*. 1989. Phylogenetic relationships within phylum Rotifera: orders and genus Notholca.  Hydrobiologia 186/187: 311–318.
  • Wallace, R.L. 1993. Presence of anisotropic (birefringent) crystalline structures in embryonic and juvenile monogonont rotifers. Hydrobiologia 255/257: 71-76.
  • Wallace, R.L. 1993. Phylogeny of the phylum Rotifera: a workshop. Hydrobiologia 255/257: 491–493.
  • Felix, A.,* Stevens, M.E., & Wallace, R.L. 1995. Unpalatability of a colonial rotifer, Sinantherina socialis, to small zooplanktivorous fishes. Invertebrate Biology 114(2): 139-144.
  • Wallace, R.L., Ricci, C., & Melone, G. 1995. Through Alice’s Looking Glass: a cladistic analysis of pseudocoelomate anatomy. Pages 61-67, in Body Cavities: function and phylogeny. (G. Lanzavecchia, R. Valvassori, & M.D. Candia Carnevali, eds.). Selected Symposia and Monographs Unione Zoologica Italiana, 8, Mucchi, Modena.
  • Nogrady, T. & Wallace, R.L. 1995. Numerical taxonomy of the genus Notholca.Hydrobiologia 313/314: 99-104.
  • Bevington, D.,* White, C.,* & Wallace, R.L. 1995. Predatory behaviors ofCupelopagis vorax (Rotifera, Collothecacea, Atrochidae) on protozoan prey. Hydrobiologia 313/314: 213-217.
  • Wallace, R.L., Ricci, C., & Melone, G. 1996. A cladistic analysis of pseudocoelomate (aschelminth) morphology. Invertebrate Biology 115(2): 104-112.
  • Melone, G. Ricci, C., & Wallace, R.L. 1998. Phylogenetic relationships of acanthocephala and rotifera: morphological vs. molecular approaches. Pages 57-62, in 1 Colloquio Nazionale di Sistematica Cladistica. (Cristofolini, G. & Minelli, A., eds.). Memorie del Museo Civico di Storia Naturale di Verona (20 Serie).
  • Melone, G., Ricci, C., Segers, H., & Wallace, R.L. 1998. Phylogenetic relationships of Phylum Rotifera. Hydrobiologia 387/388: 101-107.
  • Wallace, R.L., Cipro, J.J*. & Grubbs, R.W.* 1998. Relative investment in offspring by sessile Rotifera. Hydrobiologia 387/388: 311-316.
  • Wallace, R.L. 1999. Phylum Rotifera. Pages 118-129, in Encyclopedia of Reproduction, Volume 4. E. Knobil & J.D. Neill (eds.), Academic Press, San Diego, CA.
  • Verb, R.G., Vis, M.L., Ott, D.W., & Wallace, R.L. 1999. New records of Vaucheria species (Xanthophceae) with associated Proales werneckii(Rotifera) from North America. Cryptogamie Algologie 20(2): 67-73.
  • Wallace, R.L. 2000. On a charismatic microfauna. Review of The Biology of Calanoid Copepods. (Advances in Marine Biology, Vol. 33 (John Mauchline). Academic Press, San Diego, 1998. 710 pp., illus.) BioScience 50(9): 827-829.
  • Segers, H. & Wallace, R.L. 2001. Contribution to a revision of Family Conochilidae (Rotifera; Monogononta; Flosculariacea). Zoologica Scripta 30(1): 3748.
  • Wallace, R.L., Gilbert, J. & King, C. 2001. In memoriam: W.T. “Tommy” Edmondson (19162000). Hydrobiologia 446/447: xv-xxi.
  • Wallace, R. L., Ott, D.W. Stiles, S.L. & Oldham-Ott, C.K. 2001. Bed and Breakfast: the parasitic life of Proales werneckii (Ploimida: Proalidae) within the alga Vaucheria (Xanthophyceae: Vaucheriales). Hydrobiologia 446/447: 129-137.
  • Wallace, R.L. & Ricci, C. 2002. Rotifera. Pages 15-44, in S.D. Rundle, A.L. Robertson & J.M. Schmid-Araya (eds.). Freshwater Meiofauna: Biology and Ecology. Backhuys Publishers, Leiden.
  • Wallace, R.L. 2002. Rotifers: Exquisite Metazoans. Integrative and Comparative Biology 42: 660-667.
  • Fontaneto, D., Melone, G., & Wallace, R.L. 2003. Morphology of Floscularia ringens (Rotifera, Monogononta) from egg to adult. Invertebrate Biology 122: 231-240.
  • Walsh, E. & Wallace, R.L. 2003. Life on the edge: an evaluation of the health of Chihuahuan Desert waters. Chihuahuan Desert Discovery 49(2): 25.
  • Walsh, E.J., Wallace, R.L., & Shiel, R.J. 2005. Toward a Better Understanding of the Phylogeny of the Asplanchnidae (Rotifera). Hydrobiologia 546(1): 71-80.
  • Wallace, R.L., Walsh, E.J., Arroyo, M.L. & Starkweather, P.L. 2005. Life on the Edge: Rotifers From Springs and Ephemeral Waters in the Chihuahuan Desert, Big Bend National Park (Texas, USA). Hydrobiologia 546(1): 147-157.
  • Beres, K., Wallace, R.L., & Segers, H. 2005. Rotifers and Hubbell’s Unified Neutral Theory of biodiversity and biogeography. Natural Resource Modeling 18(3): 363-376.
  • Wallace, R.L., Snell, T.W., Ricci, C. & Nogrady, T. 2006. Rotifera: Volume 1 Biology, Ecology and Systematics (2nd ed.). Guides to the Identification of the Microinvertebrates of the Continental Waters of the World, Vol. 23, (Segers, H., ed.). Kenobi Productions, Ghent, & Backhuys Publishers, Leiden.
  • Walsh, E.J., M. Salazar*, J. Remirez*, O. Moldes*, & R.L. Wallace. 2006. Predation by invertebrate predators on the colonial rotifer, Sinantherina socialis. Invertebrate Biology 125(4): 325–335.
  • Walsh, E.J., T. Schröder, M.L. Arroyo, & R.L. Wallace. 2007. How well do single samples reflect rotifer species diversity? A test based on interannual variation of rotifer communities in Big Bend National Park (Texas, USA). Hydrobiologia 593: 39–47.
  • Wallace, R.L., E.J. Walsh, R. Rico-Martinez, J.V. Rios Arana, & T. Schröder. 2008. Species composition and distribution of rotifers in Chihuahuan desert waters: is everything everywhere? Verh. Internat. Verein. Limnol.  30(1): 73–76.
  • Walsh, E.J., T. Schröder, R.L. Wallace, J.V. Ríos-Arana, & R. Rico-Martínez. 2008. Rotifers from selected inland saline waters in the Chihuahuan Desert of México. Saline Systems 4:7. doi: 10.1186/1746-1448-4-7 // Available from:
  • Smith, H.A.*, J. Ejsmont-Karabin, T. Hess, & R.L. Wallace. 2009. Paradox of planktonic rotifers: similar structure but unique trajectories in communities of the Great Masurian Lakes (Poland). Verh. Internat. Verein. Limnol. 30(6): 951–956.
  • Wallace, R.L.  2009. Choice review: Aridland springs in North America: ecology and conservation. (Lawrence E. Stevens & Vicky J. Meretsky, eds.). Arizona/Arizona-Sonora Desert Museum, 2008. (April 2009).
  • Walsh, E.J. T. Schroeder, R.L. Wallace, & G. Santos Medrano*. 2009. Cryptic speciation in Chihuahuan Desert zooplankton? I. Lecane bulla(Monogononta: Rotifera). Internat. Verein. Limnol. 30: 30(7): 1046–1050.
  • Obertegger, U., H.A. Smith*, G. Flaim, & R.L. Wallace. 2011. Using the guild ratio to characterize pelagic rotifer communities. Hydrobiologia 662: 157-162.
  • Segers, H., W.H. DeSmet, C. Fischer, D. Fontaneto, E. Michaloudi, R.L. Wallace, & C.D. Jersabek, 2012. Towards a list of available names in zoology, partim phylum Rotifera. Zootaxa 3179: 61-68.
  • Wallace, R.L. and Sarma, S.S.S. 2013. The 13th International Rotifer Symposium, Shillong, India, November 18–24, 2012. SIL News 62: 17–18.
  • Wallace, R.L., Sarma, S.S.S., and Nandini, S. 2013. A commentary on the XIIIth International Rotifer Symposium (Shillong, 2012). Aquatic Biosystems 9(1):1-13. DOI: 10.1186/2046-9063-9-13.
  • Wallace, R.L. 2013. Choice review of Wetland environments: a global perspective by J. Sandusky, F. Pavri, & S. Ward Aber. Wiley-Blackwell. (August 2013).
  • Wallace, R.L. 2013. Choice review of Mid-Atlantic Freshwater Wetlands: Advances in Wetlands Science, Management Policy and Practice. Edited by R. P. Brooks and D. H. Wardrop. Springer, New York. November 2013 issue of Choice.
  • Wallace, R.L., Walsh, E.J., Weber, K., Rico Martinez, R., & Das, S. Coloniality in rotifers: Implications for survival and fitness — SICB, Austin Texas, 3-7 January 2014: Abstract Number: 6-104073.
  • Meksuwan, P., Pholpunthin, P., Walsh, E.J., Segers, H., and Wallace, R.L. 2014. Nestedness in sessile and periphytic rotifer communities: A meta-analysis. International Review of Hydrobiology 99: 3-19.
  • Walsh, E.J., Smith, H., and Wallace, R.L. 2014. Rotifers of temporary waters. International Review of Hydrobiology 99: 48-57.
  • Wallace, R.L. Snell, T. and Smith, H.A. 2015. Rotifer. Vol. I, Chapter 13: Ecology and General Biology. In: Thorp and Covich’s Freshwater Invertebrates. Elsevier pp 225-271
  • Universidad Nacional Autónoma de México. Invited lectures (8 hrs) on aquatic ecology (21–25 January, 2014) to students in their postgraduate program.
  • Wallace, R.L. 2014. Choice review of Drought in arid and semi-arid regions: a multi-disciplinary and cross-country perspective. (K. Schwabe et al., eds.). Springer, 2013. 507p. April 2014 issue of Choice.
  • Walsh, E.J., M.L. Arroyo, T. Schröder, and R.L. Wallace. 2014. Species richness and species turnover (complementarity) of Rotifera in selected aquatic systems of Big Bend National Park, Texas. In: C.A. Hoyt & J. Karges (editors). Proceedings of the Sixth Symposium on the Natural Resources of the Chihuahuan Desert Region. October 14–17. Chihuahuan Desert Research Institute, Fort Davis, TX. pp. 185–204
  • Wallace, R.L., Snell, T.W., and Smith, H.A., 2015. Phylum Rotifera. In: Thorp, J. & Rogers, D.C. (Eds.), Ecology and General Biology: Thorp and Covich’s Freshwater Invertebrates, Academic Press. pp. 225–271.

Textbooks and Related Educational Publications

(* = student co-authors)

  • Wallace, R.L. 2015. Choice review of Relics of a beautiful sea: survival, extinction, and conservation in a desert world. (Norment, CJ.). North Carolina, 2014. 271p. April 2015 issue of Choice.
  • Segers, H., W.H. De Smet, C. Fischer, D. Fontaneto, E. Michaloudi, R.L. Wallace, & C.D. Jersabek. 2012. Towards a list of available names in zoology, partim phylum Rotifera. Zootaxa 3179: 61–68. This paper is published as open access at:
  • Wallace, R.L. & Sarma, S.S.S. 2013. The 13th International Rotifer Symposium, Shillong, India, November 18–24, 2012. SIL News 62: 17–18.
  • Wallace, R.L. 2013, Sarma, S.S.S., & Nandini, S. A commentary on the XIIIth International Rotifer Symposium (Shillong, 2012). Aquatic Biosystems 9: 13.
  • Wallace, R.L. & Smith, H.A. 2013. Rotifera. In: eLS 2013, John Wiley & Sons Ltd: Chichester. [DOI:10.1002/9780470015902.a0001588.pub2}. (May 2013).
  • Wallace, R.L. & H. A. Smith. (accepted) Rotifera. In: Earth Systems and Environmental Sciences. Reference Module. (Scott Elias, ed.) Elsevier.
  • Wallace, R.L. & Smith, H.A. 2013. Rotifera. In: eLS 2013, John Wiley & Sons Ltd: Chichester. [DOI:10.1002/9780470015902.a0001588.pub2}. (May 2013).
  • Wallace, R.L. 1995. Student Study Guide to accompany David Ross’ “Introduction to Oceanography.” HarperCollins College Publ. Inc., New York, 195 pages. ISBN 0-673-46939-5.
  • Wallace, R.L. 1996. Instructor’s Manual and Test Bank to accompany James Nybakken’s textbook “Marine Biology, an ecological approach.” Fourth edition. HarperCollins College Publ., N.Y. ISBN 0-673-97009-4.
  • Wallace, R.L. 2000. Priapulida. Encyclopedia of Life Sciences. Macmillan Publishers Ltd. [electronic publication #1592; consult --].
  • Wallace, R.L. 2000. Rotifera. Encyclopedia of Life Sciences. Macmillan Publishers Ltd. [electronic publication #1588; consult --].
  • Wallace, R.L. & Snell, T.W. 2001. Rotifera. Chapter 8. Pages 195-254, in “Ecology and Classifications of North American Freshwater Invertebrates,” second edition (J. Thorp & A. Covich, eds.). Academic Press. New York.
  • Wallace, R.L. & Taylor, W.K. 2002. “Invertebrate Zoology,” 6th ed. Prentice Hall, N.J. ISBN 0-13-042937-6
  • Wallace, R.L. & Brooks, W.S. 2003. A dinosaur trackways exercise. Bioscene. 29(3): 3-7.
  • Wallace, R.L. 2005. Instructor’s Manual and Test Bank for “Marine Biology, an ecological approach.” 6th edition by James Nybakken & Mark. D. Bertness. Person Education Inc. Benjamin Cummings. San Francisco, Calif. 185 pages. ISBN 0-8053-4585-X.
  • Wallace, R.L. 2005. Teaching population growth using a culture of the vinegar eel, Turbatrix aceti (Nematoda). Bioscene, “Journal of College Biology Teaching.” 31(1): 21-25.
  • Wallace, R.L. & Smith, H.A.* 2009. Rotifer. In G.E. Likens (editor). Encyclopedia of Inland Waters. Elsevier, Oxford.
  • Wallace, R.L. & Snell. T.W. 2010. Rotifera. Chapter 8. Pages 173-235. In:Ecology and Classifications of North American Freshwater Invertebrates, 3rd edition. (J. Thorp & A. Covich, eds.). Elsevier. Oxford.
  • Wallace, R.L. & Smith, H.A.* 2010. Rotifera. Pages 183-197. In G.E. Likens (editor). Plankton of Inland Waters. Elsevier, Amsterdam.

Edited Volumes

  • Sharma, B.K., Dumont, H., Wallace, R.L. Special Issue: Rotifera XIII. Rotifer Biology: a Structural and Functional Approach. International Review of Hydrobiology 99(1-2): March 2014, pp. 1–198.
  • May, L., Wallace, R., & Herzig, A. (eds.). 1987. Rotifer Symposium IV. Dr. W. Junk Publishers, Dordrecht, The Netherlands. ISBN 90-6193-645-4.
  • Wurdak, E., Wallace, R.L., & Segers, H. (eds.). 1998. Rotifer Symposium VIII. Kluwer Academic Publishers, Dordrecht, The Netherlands. ISBN 0-7923-5571-7.
  • Sarma, S.S.S., Gulati, R.D., Wallace, R., Nandini, S., Dumont, H.J., Rico-Martínez, R. 2007. Rotifer Symposium XI. Springer, Dordrecht, The Netherlands.

Commentaries, Editorials, & Related Popular Works

  • Wallace, R.L. 1994. On the debate over the destruction of variola – the smallpox virus: “U.S., Russia can work together to destroy last smallpox virus” The Oregonian, 12 May 1994; The Houston Post, 16 May 1994; “No Mercy for Variola, a Mass Murderer” St Louis Post-Dispatch, 28 May 1994; “Big decisions about smallpox” Providence Journal-Bulletin, 4 June 1994; “Mass Murderer that Deserves to be Zapped — Smallpox Virus” Valley News, 7 June 1994; “It’s time to put a mass killer – smallpox – to death” Ripon Commonwealth Press, 23 June 1994, The Milwaukee Journal, 26 June 1994.


  • View photographs posted on the teaching web site of the American Society of Limnology and Oceanography here

Areas of Interest

  • Ecology
  • Limnology
  • Marine biology
  • Invertebrate zoology
  • Zooplankton ecology
  • Rotifera


  • At the XIV International rotifer symposium Aug. 30 through Sept. 4, 2015: Mills, S.M, et al. (including Wallace, R.L.). Cryptic speciation in Brachionus plicatilis: steps towards unraveling a complex web of evolution; Rios-Arana, J.V. et al. (including Wallace, R.L.). Chihuahuan Desert Springs: water quality and rotifer diversity in northern Mexico; Weber, K.M. et al. (including Wallace, R.L.). Predator defense in the colonial sessile rotifer Sinantherina socialis (Monogononta, Gnesiotrocha, Flosculariidae); Walsh, E.J. and Wallace, R.L. Production of diapause embryos in phylum Rotifera: A metadata approach to documenting sexual reproduction; Wallace, R.L. and Snell T.W. Quo Vadis?
  • E.J. Walsh, J. Rivas Jr., J. Mohl, M.Y. Leung, R.L. Wallace, T. Gill & R. Van Pelt. Aeolian transport of biota with dust: Capturing diversity using a multi-faceted approach. American Society of Limnology and Oceanography, summer 2016 meeting.

Poster Presentations

  • R.L. Wallace, L. May, & E.J. Walsh. How widespread is the production of diapausing embryos in monogonont rotifers? American Society of Limnology and Oceanography summer, 2016 meeting.
  • E.J. Walsh, L. May, & R.L. Wallace. A proposal to construct an internet based catalog to document diapausing embryos (resting eggs) in phylum Rotifera International Society of Limnology, 2016 meeting.

Professional Experience

  • Served as as an outside examiner for two Ph.D. Proposal Defense Committees: (1) UTEP (June 2016); (2) University of Massachusetts at Lowell (July 2016).
  • Gave a week-long, series of lectures to graduate students at The National Autonomous University of Mexico in Mexico city (Nov. 14-18 2016).