"The aquatic annelid fauna associated with seven springs in southern Illinois." 6th International Symposium on Aquatic Oligochaetes, September 1994, Strömstad, Sweden.

"Chaetal Deformities in Aquatic Oligochaeta." Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 1994, Denver (co-authored with R.O. Brinkhurst).

"The aquatic Annelida of the Rocky Mountain States and Provinces." Annual Meeting, North American Benthological Society, June 1995, Keystone Resort, Colorado.

The Kankakee River Story: Long-term monitoring of translocated freshwater mussels. Biennial symposium: Conservation and Management of Freshwater Mussels II: Initiatives for the Future, 16 October 1995, St. Louis, Missouri (co-authored with H.E. Kitchel).

"Springs in the sinkhole plain of Illinois: Their community diversity and hydrogeology." Illinois Groundwater Consortium Sixth Annual Research Planning Conference - Research on Agricultural Chemicals in Illinois Groundwater, Status and Future Directions VI; 27 March 1996, Giant City State Park, Makanda, Illinois (co-authored with D.W. Webb, P.C. Reed, L.R. Phillippe, and T.C. Young).

"Biodiversity, hydrogeology, and water quality of 10 karst springs in the Salem Plateau Section of Illinois." Annual meeting of the Entomological Society of America, 10 December 1996, Louisville, Kentucky (co-authored with D.W. Webb, P.C. Reed, L R. Phillippe, and T.C. Young).

"The biodiversity, hydrogeology, and water quality of 10 karst springs in the sinkhole Plain of the Salem Plateau Section of southwestern Illinois, USA, with emphasis on the aquatic Annelida." 7th International Symposium on Aquatic Oligochaete Biology, August, 1997, University of Maine at Presque Isle, USA (co-authored with D.W. Webb).

"The biodiversity, hydrogeology, and water quality of springs and caves in Illinois, with particular reference to the aquatic Annelida." 7th North American Aquatic Oligochaete Conference and Florida Association of Benthologists (concurrent session), 29 October 1998, Keys Marine Laboratory, Layton, Florida.

"Aquatic Biota and Water Chemistry of Illinois Caves and Springs: Problems and Management." A poster co-authored by S.J. Taylor, D.W. Webb, and M.J. Wetzel, presented at the 1) Illinois Water '98 Conference, November 16-17, Urbana; 2) spring meeting of the Florida Association of Benthologists, Live Oak, FL, 29-30 April 1999; 3) 47th Annual meeting of the North American Benthological Society, Duluth, MN, 25-27 May 1999; and 4) 8th International Symposium on Aquatic Oligochaeta, Universidad del País Vasco / Euskal Herriko Unibertsitatea, Bilbao, Spain, 22 July 2000.

"An historical review of malacology in Illinois, with emphasis on the long-term Kankakee River mussel relocation study of 1987 and summary of other recent relocation projects in the state." Spring meeting of the Florida Association of Benthologists, Live Oak, FL, 29-30 April 1999.

"The Biodiversity, Hydrogeology, and Water Quality of Springs and in Illinois." Spring meeting of the Florida Association of Benthologists, Live Oak, FL, 29 April 1999.

"Diversity and abundance of the aquatic Oligochaeta in Illinois (USA) springs and caves." 8th International Symposium on Aquatic Oligochaeta, Universidad del País Vasco / Euskal Herriko Unibertsitatea, Bilbao, Spain, 22 July 2000 [presentation co-authored with S.J. Taylor and D.W. Webb].

"Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee." Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 19 December 2000.

"Caves and springs of Illinois and southeast Missouri: aquatic biota and groundwater contamination." A poster co-authored by S.J. Taylor, D.W. Webb, M.J. Wetzel (INHS), and S.V. Panno (Illinois State Geological Survey). This poster was presented by Wetzel at a special symposium entitled "Understanding Karst is Key to Protecting Florida's Springs", held concurrently with the annual meeting of the Florida Academy of Science, St. Leo University, St. Leo, FL, on 8 March 2001.

"Freshwater oligochaetes (Annelida) in fine sediments of cave streams and sediment chemical composition." 2001 National Speleological Society Convention, Mount Vernon, KY, 24 July 2001 [presentation by S.T. Taylor, co-authored by M.J. Wetzel and D.W. Webb].

"Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee." Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 29 November 2001. [presentation co-authored with M.A. Peggy Morgan].

"Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee." Annual meeting of the Florida Association of Benthologists, convened at the Florida Marine Research Institute, Cedar Key, FL, 6 December 2001. [presentation co-authored with M.A. Peggy Morgan].

"Aquatic Oligochaeta (Annelida, Clitellata) of the Colorado River and its tributaries, Grand Canyon National Park, Arizona." Annual meeting of the Florida Association of Benthologists, convened at the Florida Marine Research Institute, Cedar Key, FL, 6 December 2001. [presentation co-authored with M.A. Peggy Morgan].

"The Biodiversity of Springs and Water Quality of Caves in Illinois, with some emphasis on the Aquatic Oligochaeta." Annual meeting of the Southeastern Water Pollution Biologists meeting, Panama City, 29-31 October 2002. [presentation co-authored with Donald W. Webb].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA." Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 5 December 2002. [presentation co-authored with M.A. Peggy Morgan].

"In Memoriam: Our colleague, mentor, and friend - Professor Walter J. Harman, PhD (1928-2002)." 9th International Symposium on Aquatic Oligochaete Biology, convened in Wageningen, The Netherlands, 6-10 October 2003.

"Taxonomic studies and clitellate annelids - the current condition." [authors: K.A. Coates, R.D. Kathman, R. Schmelz, T. Timm, and M.J. Wetzel]. 9th International Symposium on Aquatic Oligochaete Biology, convened in Wageningen, The Netherlands, 6-10 October 2003.

"Natural history collections: current status, critical needs, and recommendations." 9th International Symposium on Aquatic Oligochaete Biology, convened in Wageningen, The Netherlands, 6-10 October 2003 [presentation co-authored with William E. Moser, U.S. National Museum-Smithsonian Institution, Washington, DC].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA." 9th International Symposium on Aquatic Oligochaete Biology, convened in Wageningen, The Netherlands, 6-10 October 2003 [presentation co-authored with M.A. Peggy Morgan].

"Caves and springs of Illinois and southeast Missouri: aquatic biota and groundwater contamination." 9th International Symposium on Aquatic Oligochaete Biology, convened in Wageningen, The Netherlands, 6-10 October 2003 [poster presentation co-authored with S.J. Taylor, D.W. Webb, and S.V. Panno (Illinois State Geological Survey). "The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA. Update: December 2003." 7th Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 4 December 2003. [presentation co-authored with M.A. Peggy Morgan].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA. Update: December 2003." 17th Annual meeting of the Florida Association of Benthologists, National Estuarine Research Reserve at Rookery Bay, Naples, Florida. 11 December 2003. [presentation co-authored with M.A. Peggy Morgan].

"Natural history collections: current status, critical needs, and recommendations." 17th Annual meeting of the Florida Association of Benthologists, National Estuarine Research Reserve at Rookery Bay, Naples, Florida. 11 December 2003. [presentation co-authored with William E. Moser, U.S. National Museum-Smithsonian Institution, Washington, DC].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee. Update: December 2004." Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 7-10 December 2004. [presentation co-authored with M.A. Peggy Morgan].

"The North American Benthological Society Taxonomic Certification Program: history, current status, future direction." 18th annual meeting of the Florida Association of Benthologists (FAB), convened at the Archbold Field Station near Lake Placid, Florida, 17 December 2004. [Introduced the FAB meeting participants to the NABS TCP; the presentation was followed by a round-table discussion, specifically to discuss the impact on and importance of this program to Florida Benthologists, regardless of employment / professional affiliation].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA." 31st meeting of the Carolinas Area Benthologists Workshop, Duke Energy facilities, Huntersville, NC, 18 March 2005 [presentation co-authored with M.A. Peggy Morgan].

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee. Update: December 2005." Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., Glenstone Lodge, Gatlinburg, TN, 6-9 December 2005. [presentation co-authored with M.A. Peggy Morgan].

"In Memoriam: Michael Robert Milligan, Oligochaetologist (1951-2005)." Presented to participants of the 19th annual meeting of the Florida Association of Benthologists, convened at the St/ Johns River Water Management District facilities, Palatka, Florida, 15 December 2005.

"Current status of and new publications by the American Fisheries Society Committee on Common and Scientific Names of Aquatic Invertebrates." Presented to participants of the 19th annual meeting of the Florida Association of Benthologists, convened at the St/ Johns River Water Management District facilities, Palatka, Florida, 15 December 2005.''

"The North American Benthological Society Taxonomic Certification Program: history, current status, future direction - 2005 update." Presented to participants of the 19th annual meeting of the Florida Association of Benthologists, convened at the St/ Johns River Water Management District facilities, Palatka, Florida, 15 December 2005.

"An overview of the All Taxa Biodiversity Inventory Program in the Great Smoky Mountains National Park, with focus on our inventory of the aquatic Oligochaeta and other annelidan fauna in the Park." Paper co-authored by Mark J. Wetzel Illinois Natural History Survey, Champaign) and Peggy Morgan (Florida Department of Environmental Protection, Tampa); invited keynote address, presented by M.J. Wetzel at the 33rd annual Indiana Regional Junior Science and Humanities Symposium, Indiana State University, Terre Haute; 9 March 2006.

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA: Helping Man and Worm See Eye to Eye." Paper co-authored by Mark J. Wetzel Illinois Natural History Survey, Champaign) and Peggy Morgan (Florida Department of Environmental Protection, Tampa); presented by M.J. Wetzel at the Annual meeting of the Association of Southeastern Biologists, Gatlinburg Convention Center, Gatlinburg, TN, 29 March-1 April 2006.

"A global assessment of the oligochaetous clitellate diversity in freshwater." A poster co-authored by Patrick Martin (Royal Belgian Institute of Natural Sciences, Brussels, Belgium), Enrique Martinez-Ansemil (Departamento de Bioloxía Animal, Bioloxía Vexetal e Ecoloxía, Universidade da Coruña, Coruña, Spain), Adrian Pinder (Wildlife Research Centre, Department of Conservation and Land Management, Wanneroo, Australia), Tarmo Timm (Võrtsjärv Limnological Station, Institute of Zoology and Botany, Estonian Agricultural University, Rannu, Tartumaa, Estonia), and Mark J. Wetzel (INHS). Poster, presented [by M.J. Wetzel] during 8th annual NABS Taxonomy Fair - 54th annual meeting of the North American Benthological Society, Anchorage, Alaska, 5 June 2006.

"An introduction to the taxonomy, systematics, and ecology of North American Freshwater Annelida, with summaries of our surveys for Aquatic Oligochaeta in a) the Great Smoky Mountains National Park in North Carolina and Tennessee, and b) the Colorado River and its tributaries in Grand Canyon National Park, Arizona." This talk was presented to faculty, staff, and students at the Merriam-Powell Center for Environmental Research (Powell Division) at Northern Arizona University, Flagstaff, on 19 July.

Six oral presentations by MJW at the 10th International Symposium on Aquatic Oligochaeta [10th ISAO], convened at the Institute of Hydrobiology, Chinese Academy of Sciences, in Wuhan, Hubei Province, China (16-21 October 2006):
> In Memoriam: Dr. Charlie Drewes, Science Educator and Oligochaetologist (1948-2005).
> In Memoriam: Our colleague and friend, Michael Robert Milligan, Oligochaetologist (1951-2005).
> In Memoriam: Dr. Brenda M. Healy (1932-2006), Rathdrum, Eire (co-authored with Drs. Kathryn A. Coates and Rüdiger M. Schmelz; presented by Wetzel).
> Natural history collections - current status, critical needs, recommendations.
> A global assessment of the oligochaetous clitellate diversity in freshwater [co-authored with Patrick Martin (Belgium), Enrique Martinez-Ansemil (Spain), Adrian Pinder (Australia), and Tarmo Timm (Estonia); presented by Martin].
> An historical perspective on the 10 International Symposia on Aquatic Oligochaete Biology, 1979-2006.

"The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA: Update 2006." Paper co-authored by Mark J. Wetzel Illinois Natural History Survey, Champaign) and Peggy Morgan (Florida Department of Environmental Protection, Tampa); presented by M.J. Wetzel at the Annual meeting of the All Taxa Biodiversity Inventory Program underwritten by Discover Life In America, Inc., convened at the Holiday Inn, Gatlinburg, TN, 6-8 December 2006.

Three part presentation] Title: "Annelidically Speaking: a) A synopsis of taxonomic workshops presented in Florida in 2006, b) an overview of the 10th International Symposium on Aquatic Oligochaeta convened in China in 2006, and c) an update of the NABS Taxonomic Certification Program and summary of certification tests presented in 2006." Presented at the annual meeting of the Florida Association of Benthologists, Ed Yarborough Nature Center, Geneva, FL, 13-14 December 2006.

Title: "The Aquatic Oligochaeta (Annelida, Clitellata) of the Great Smoky Mountains National Park, North Carolina and Tennessee, USA: Update 2006." Paper co-authored by Mark J. Wetzel Illinois Natural History Survey, Champaign) and Peggy Morgan (Florida Department of Environmental Protection, Tampa); presented by M.J. Wetzel at the 55th Annual meeting of the North American Benthogical Society, convened at the Convention Center, Columbia, SC, 3-7 June 2007.

Title: "Freshwater macroinvertebrate research projects in Illinois and elsewhere in the world." Invited presentation to the Limnology class at Blackburn College, Carlinville, IL; Friday 28 September 2007.

Title: "Iron chefs (er, ICZN Commissioners) rule: farewell to the Tubificidae (Annelida, Clitellata)." Invited presentation at the 21st annual meeting of the Florida Association of Benthologists, convened at the Elsa Kimbell Environmental Education and Research Center, Jonathan Dickinson St. Pk., Hobe Sound, FL, 4-6 December 2007.

"The North American Benthological Society Taxonomic Certification Program: Update 2007." Invited presentation at the 21st annual meeting of the Florida Association of Benthologists, convened at the Elsa Kimbell Environmental Education and Research Center, Jonathan Dickinson State Park, Hobe Sound, FL, 4-6 December 2007.

"The aquatic oligochaetes (Annelida, Clitellata) of Great Smoky Mountains National Park, North Carolina and Tennessee, USA." Paper presented by M.J. Wetzel at the annual meeting of the Association of Mid-Atlantic Aquatic Biologists, convened at Cacapon State Park, near Berkeley Springs, W. VA, 2 April 2008.

"Various and Sundry Updates in the World of Segmented Worms [or, Why Not To Use Lipstick When Mounting Oligochaetes]." Invited presentation at the 22nd annual meeting of the Florida Association of Benthologists, convened at the Plantation Golf Resort and Spa near Crystal River, Florida, 8-11 December 2008.

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See also "Taxonomic Workshops" that have been presented, via link in site navigation bar, below.