Frank   Dirrigl  Jr.

Associate Professor  

Office: ESCNE 2.344
Phone: (956) 665-8732
Email: frank.dirrigl@utrgv.edu

Dr. Frank Dirrigl Jr.

Dr. Frank J. Dirrigl, Jr. is an Associate Professor of Environmental Science at the University of Texas Rio Grande Valley (UTRGV), Edinburg TX. Before joining UTRGV, he was an Associate Professor of Environmental Science at Post University, Waterbury CT, where he also was involved in establishing its Environmental Theories & Applications Program. Additionally, Dr. Dirrigl has over 25 years of experience serving as a professional environmental scientist in industry for environmental permitting with civil engineering firms, federal/state/municipal government agencies, and non-profit organizations. His areas of expertise include, Environmental Biology (Biomonitoring, Rare Species Biology), Environmental Permitting (Ecological Impact Assessment, Wetland Evaluation, Mitigation BMPs), Environmental Anthropology (Human Impacts and Natural Resource Conservation), and Comparative Vertebrate (Osteology-Taphonomy, Bone Biology).





Selected Publications


  • Frank Dirrigl, Zachariah Badaoui, Carlos Tamez, Christopher Vitek, and Jason Parsons. "Use of the sea hare (Aplysia fasciata) in biomonitoring metals in a hypersaline lagoon. ," no. Marine Pollution 129, (April (2nd Quarter/Spring) 2018): 681-688.

  • Frank Dirrigl, Guadalupe Medina, Jr., and Robert Edwards. "Rapid environmental assessment of a drainage canal system to identify bioreference sites for wetland permitting.," Environmental Practice 16, (2014): 19-28.

  • Frank Dirrigl and Christopher Vitek. "Socioenvironmental Factors and Potential Dengue Exposure in South Texas," The Applied Anthropologist 33, no. 1 (July (3rd Quarter/Summer) 2013): 8.

  • Frank Dirrigl Critical Habitat Survey for Seaside Goldenrod Stem Borer (Papaipema duovata): Proposed Thomas Road Bikeway, Town of Groton CT. 2008.

  • Frank Dirrigl Critical Habitat Survey for Tiger Beetles (Cincindelidae): Proposed Connecticut River Boat Launch, Town of Portland CT. 2008.

  • Frank Dirrigl Ecological Habitat Assessment, Feasibility Study for Proposed Dam Removal, GLN Construction Management Inc., Bloomfield CT. 2008.

  • Frank Dirrigl Ecological Habitat Assessment, Naugatuck Renaissance Place, CEPA & EIE, Town of Naugatuck, CT. 2008.

  • Frank Dirrigl, Josh Wilson, Ecological Risk Assessment: Screening Level, Sherwood Mills Industries Properties, 10 Main Street, Kensington CT. 2008.

  • Frank Dirrigl Massachusetts Endangered Species Act: Northeast Utilities Operation and Maintenance Plan (OPM) Implementation. 2008.

  • Frank Dirrigl Rare Species Evaluation of the Scituate Reservoir Properties, Providence Water. 2008.



Selected Grants and Fellowships


  • Frank Dirrigl. Fruit Fly Eradication Support in Lower Rio Grande Valley of South Texas, USDA, $149,997.00 (September 2018 - August 2019)

  • Frank Dirrigl. Test of an Unmanned Aerial Vehicle (UAV) for Determining Ecosystem Indicators in Rapid Ecosystem Service Assessments (RESA) for Sustainable Land Management and Planning , NSF, $282,175.00 ( )

  • Erin Schuenzel. STEP UP to USDA Career Success: Science, Technology and Environmental Programs for Undergraduate Preparation to USDA Career Success, USDA-HSI , $3,200,000.00 (September 1, 2011 - August 31, 2016)



Selected Presentations


  • Frank Dirrigl, Adriana Diaz, and Reyna Chavez. "Effects of Soil Shrink-Swell on the Taphonomy of Bird Bones," International Council for Archaeozoology, Bird Working Group, (June 2018)

  • Frank Dirrigl. "Publishing with Environmental Practice," National Association of Environmental Professionals Annual Meeting, (March 2018)

  • Juan Gonzalez, Chu-Lin Cheng, Jihoon Kang, Carlos Cintra-Buenrostro, Jude Benavides, Elizabeth Heise, James Hinthorne, and Frank Dirrigl. "Stimulating Hispanic Participation in the Geosciences (SHIP-GEO) at Rio Grande Valley in South Texas: Findings from Year One," The Geological Society of America Annual Meeting, Geological Society of America (GSA), Seattle, WA (October 2017)

  • Elizabeth Heise, Chu-Lin Cheng, Juan Gonzalez, Jihoon Kang, Jude Benavides, James Hinthorne, and Frank Dirrigl. "Stimulating Hispanic participation in the Geosciences (SHIP-GEO) at Rio Grande Valley in South Texas," 2016 Annual Meeting, Geological Society of America, Geological Society of America, Denver, CO (September 2016)

  • Frank Dirrigl. "Local Educational Engagement and Experiential Learning in Stormwater Management," Annual Stormwater Quality Conference, Rio Grande Valley Stormwater Management, (May 2016)

  • Frank Dirrigl. "Recognizing the Roles of Ethnoscience, Traditional Knowledge, and Emic Approaches towards Citizen Science and Sustainable Development Projects: Implications for the Rio Grande Valley, Texas," Texas Regional Alliance for Campus Sustainability Summit, (May 2016)

  • Frank Dirrigl and Thomas Eubanks. "Shoreline Diptera as Potential Bioindicators of Metals in Freshwater and Marine Habitats," 119th Annual Meeting of the Texas Academy of Sciences, (April 2016)

  • Frank Dirrigl. "The Perfect Match: Environmental Impact Assessment and Challenge Based Instruction in a Multidisciplinary Field of Study," Challenged-Based Instruction Conference, Center of Excellence in STEM Education, The University of Texas Rio Grande Valley (April 2016)

  • Frank Dirrigl and Hanna Jung. "Chemical Composition and Historical Taphonomy of Bird Bones Exposed to Simulated and Natural Salt Lake Environs: Research Project Development," 8th Bird Working Group Meeting, International Council for Archaeozology (ICAZ), (January 2016)

  • Frank Dirrigl. "AP Environmental Science Testing: Improving Student Answers to Free-Response Questions," High School Science Education Conference, The RGV Science Association , (2015)

Current Courses

EEMS 6385 04 - Graduate Research:
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BIOL 4400 90L - Biological Communication:
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ENVR 1401 A - Intro to Envr Sci I:
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ENVR 1401 B - Intro to Envr Sci I:
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BIOL 4390 02 - Biology Internship:
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ENVR 5170 01 - Top: Historical Ecology:
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ENVR 5370 01 - Top: Historical Ecology:
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ENVR 1401 01 - Intro to Envr Sci I:
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BIOL 4399 07 - Research Problems in Biology:
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EEMS 7300 04 - Thesis I:
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ENVR 1401 C - Intro to Envr Sci I:
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Previous Courses