2019 National Science Foundation, DBI 1950610, Systematics, Evolution and Conservation for the 21st Century; Award Amount:$591,952. Role: Principal Investigator
2014-2018 National Science Foundation, DBI 1358465, Systematics and Evolutionary Biology: A Continuing Program of Undergraduate Research; Award Amount:$698,579. Role: Principal Investigator
2012-2018 National Science Foundation, DEB 1146374, Aquatic faunal survey of the lower Amazon. $914,750. Role: Contributing Investigator for parasites.
2012 National Science Foundation, DBI 1238406, Training High School Students in Evolutionary Biology. Award Amount: $9,509. Role: Principal Investigator
2009-2014 National Science Foundation, DBI 0850543, Systematics and Evolutionary Biology: A Continuing Program of Undergraduate Research. . Award Amount: $475,500.00 . Role: Principal Investigator
2007-2011 National Science Foundation, DEB–0640463, REVSYS – Systematics of medicinal leeches (Hirudinidae): Building on the legacy of PEET. Award Amount:$240,245.00. Role: Principal Investigator
2003-2008 National Science Foundation, DBI 0353817, Site Grant – Systematics and Evolutionary Biology: Award Amount:$424,975. . Role: Principal Investigator
2002-2004 National Institutes of Health, NIGMS 5R01GM062351-02. Genetic Transfer in the Evolution of Infectious Disease, Award Amount:$233,836. Role: co Principal Investigator
2001-2006 National Science Foundation, BIO-DEB 0119329, PEET: Monography of the Families of Hirudinea (Leeches) with On-line Databasing and Development of Electronic Keys: A Program to Train the Hirudinologists of the Future. Award Amoutn: $741,576. Role: Principal Investigator
2001-2003 National Science Foundation, BIO-DEB 0108163, Characterization of a Newly Discovered Symbiosis between Bacteria and Leeches. Award Amount: $100,113.00. Role: Principal Investigator
2000-2003 National Science Foundation, BIO-REU 0097552, Research Experience for Undergraduates Site Grant Site Grant – Systematics and Evolutionary Biology, Award Amount $174,305 Role: Principal Investigator
1998 National Science Foundation, BIO-DEB 9840369, Supplemental support for extended taxonomic scope of Glossiphoniid leeches.
1997-2000 National Science Foundation, BIO-DEB 9615211 “Phylogeny of Non-polychaete Annelids.” Role: co Principal Investigator. Award Amount $200,000
1994-1996 National Science Foundation, BIO-DEB 9629487 “Molecular phylogeny of the Haplosoridia.” $181,583 Role: co-Principal Investigator
1993 Department of Fisheries and Oceans/Natural Sciences and Engineering Research Council of Canada Science Subvention Grant. “Physiological stress response to infection with the piroplasm, Haemohormidium terranovae.” Role: Principal Investigator
1992 Department of Fisheries and Oceans/Natural Sciences and Engineering Research Council of Canada Science Subvention Grant. “Physiological stress response to infection with the piroplasm, Haemohormidium terranovae.” Role: Principal Investigator
1991 Natural Sciences and Engineering Research Council of Canada; Postgraduate Grant. “Fish Blood Parasites (Apicomplexa: Adeleina) and their Leech Vectors: Biology, Phylogeny and Coevolution.” Role: Principal Investigator
1989 Natural Sciences and Engineering Research Council of Canada; Postgraduate Grant. “The Life History, Ultrastructure, and Epizootiology of Haemogregarina balli (Apicomplexa: Adeleina: Haemogregarinidae) and Phylogenetic Implications.” Role: Principal Investigator
1988 Natural Sciences and Engineering Research Council of Canada; Undergraduate Research Grant.