Publications

^^Jansing, M., A. Titus, L. Salazar*, G. Davis*, H. Williams**, M. Brown**, M.M. Chumchal, M.H. Weinburgh. 2025. Developing Near-Peer Relationships: An Afterschool Pre-Health Professions Mentorship Program. The Advisor, 45(2):08. Click here to download.

Kraus, J., F. Rowland, M. Hladik, K. Dowdy, M.M. Chumchal. 2025. Predictors of mercury and pesticide fluxes by emerging adult aquatic insects from Prairie Pothole wetlands. Environmental Toxicology and Chemistry, accepted pending revision.

Simonis, M.C., S. Ciarrachi, K.E. Dyer, M. Allira, B. Demory, J. Zubayr, D. Van Parys, K. Whitmore, M.M. Chumchal, C.G. Haase, J.T. Foster, D.J. Becker. 2025. A multi-stressor approach to quantifying wildlife health: a pilot study with North American bats. Integrative and Comparative Biology, In press Click here to download. 

Simonis, M.C., K. Whitmore*, K.E. Dyer, M. Allira, B. Demory. M.M. Chumchal, D.J. Becker. 2025. A paired analysis of mercury among non-invasive tissues to inform bat conservation monitoring. Ecotoxicology, https://doi.org/10.1007/s10646-025-02928-2 Click here to download. 

Thalhuber, T.T.*; M.M. Chumchal, R.W. Drenner, W.H. Nowlin, D. Williams, B. Barst, J. Kennedy, W. Mitchell**, M. Self**, F.M. Willoughby**, W. Zudock**. 2025. Methyl Mercury Contamination and Diet of Nestling Red-winged Blackbirds. Environmental Toxicology and Chemistry, 44: 59-67. Click here to download. 

Rosenbaum, D.*, C. Montaña, Y. Zhang, M.M. Chumchal, D. Saenz, C. Schalk. 2024. Intraspecific Variation in Mercury Contamination of Alligator Snapping Turtles (Macrochelys temminckii). Environmental Toxicology and Chemistry, 43:1903-1913. Click here to download.

Todd, A.*; M.M.Chumchal, R.W. Drenner, C. Allender**, B. Barst, M. Capone**, A. Degges**, M.P. Hannappel, C. Perry**, R. Peterson**, T. Martinez**, I. Schmeder***, T. Williams**, M. Willingham**. 2024. Effects of Taxa and Body Size on Mercury Concentrations in Spiders from Two Rivers with Different Levels of Mercury Contamination: Implications for the Use of Riparian Spiders as Sentinels. Environmental Toxicology and Chemistry, 43: 2169-2175. Click here to download.

^^Chumchal, M.M. 2023. Undergraduate Research: How advisors can help their pre-health students understand the role that scholarship and creative activities play in the admissions process, The Advisor, 43 (4): 07. Click here to download.

Seymour, R.D.*, R.W. Drenner, M.M. Chumchal, 2023. Health Risks of Methylmercury Contamination to Largemouth Bass in the Southeastern United States. Environmental Toxicology and Chemistry. Environmental Toxicology and Chemistry, 42:1755-1762. Click here to download.

Sánchez, C.A., M. Penrose, M.K. Kessler, D.J. Becker, A. McKeown, M. Hannappel, V. Boyd, M.S. Camus, T. Padgett-Stewart, A.J. Peel, D.A. Westcott, T.R. Rainwater, M.M. Chumchal, G.P. Cobb, S.Altizer, R.K. Plowright, W.S.J. Boardman. 2022. Land use, season, and parasitism predict metal concentrations in Australian flying fox fur. Science of the Total Environment. 841:156699 Click here to download.

Drenner, R.W., M.M. Chumchal, S.P. Gaul**, M.T. Hembrough**, A.M. Khan**, I.M. Rolfe**, G.R. Wallace**, M.P. Hannappel.* 2022. Sentinel Riparian Spiders Predict Mercury Contamination of Riverine Fish, Environmental Toxicology and Chemistry, 41:1297-1303. Click here to download.

Drenner, R.W., M.M. Chumchal, Kimberly J. Adams, Ryan D. Seymour*. 2022. Effect of Land Cover on Ecoregion-Scale Spatial Patterns of Mercury Contamination of Largemouth Bass in the Southeastern United States. Environmental Toxicology and Chemistry. 41:2386-2394. Click here to download.

Chumchal, M.M., G.B. Beaubien, R.W. Drenner, M.P. Hannappel*, M.A. Mills, C.I. Olson*, R.R. Otter, A.C. Todd, D. M. Walters. 2022. Use of Riparian Spiders as Sentinels of Persistent and Bioavailable Chemical Contaminants in Aquatic Ecosystems: A Review, Environmental Toxicology and Chemistry, 41: 499-514. Click here to download.

Hannappel, M.P.**, M.M. Chumchal, R.W. Drenner, J. Kennedy, B.D. Barst, J.M. Castellini. 2021. Mud dauber nests as sources of spiders in mercury monitoring studies, Environmental Toxicology and Chemistry, 40: 1335-1340. Click here to download.

Hannappel, M.P.*, M.M. Chumchal, R.W. Drenner, J.H. Kennedy, B.D. Barst, J. M. Castellini, A.R. Nolan**, F. M.Willoughby**, L.P. Trauffler**. 2021. Effect of body size on methyl mercury concentrations in shoreline spiders: Implications for their use as sentinels, Environmental Toxicology and Chemistry, 40:1149-1154. Click here to download.

Drinkwater, R., A.* Goodwin, J. Cush, J.M. Korstian*, M.M. Chumchal, L. Gerardo Herrera, M. Valdez, A. Otálora-Ardila, J.J. Flores-Martinez, E.L. Clare. 2021. Molecular diet analysis of the marine fish-eating bat, Myotis vivesi, and potential mercury exposure. Canadian Journal of Zoology, 99: 752-759. Click here to download.

Burnham, K.K., F.K. Meyer**, J.L. Burnham, M.M. Chumchal, J.A. Johnson. 2021. Mercury contamination of seabird and sea duck eggs from high Arctic Greenland, Polar Biology, 44:1195-1202. Click here to download.

Becker, D., K. Speer, J. Korstian*, D. Volokhov, H. Droke, A. Brown, C. Baijnauth, T. Padgett-Stewart, H. Broders, R. Plowright, T. Rainwater, B. Fenton, N. Simmons, M. Chumchal. 2021. Disentangling interactions between mercury, immunity, and infection in a Neotropical bat community. Journal of Applied Ecology, 58:879-889. Click here to download.

Biffi, D.*, A. López-Mobilia, S. Kelez, D.A. Williams, M.M. Chumchal, M. Weinburgh. 2020. Mislabeling and high mercury content hampers the efforts of market-based seafood initiatives in Peru. Scientific Reports, 10: 1-12. Click here to download

Chumchal, M.M. and R.W. Drenner. 2020. Ecological Factors Controlling Insect-Mediated Methylmercury Flux from Aquatic to Terrestrial Ecosystems: Lessons Learned from Experimental Studies in Mesocosms and Ponds. In: Contaminants and Ecological Subsidies: The Land-Water Interface. J.M. Kraus, D.M. Walters and M.A. Mills, eds. Springer. Click here to download.

Chumchal, M.M. and L. Luque. 2020. Going abroad: how pre-health students can make the most of their international experience. Apply Magazine. 2020-2021 edition. Click here to download.

Ortega-Rodriguez, C.L., M.M. Chumchal, R.W. Drenner, J.H. Kennedy, W.H. Nowlin, B.D. Barst, D. K. Polk** , M.N. Hall** , E.B. Williams, K.C. Lauck**, A. Santa-Rios, N. Basu. 2019. Relationship between methyl mercury contamination and proportion of aquatic and terrestrial prey in diets of shoreline spiders. Environmental Toxicology Chemistry, 38: 2503-2508. Click here to download.

Gerstle, C.T.*, R.W. Drenner, M.M. Chumchal. 2019. Spatial patterns of mercury contamination and associated risk to piscivorous wading birds of the south central United States, Environmental Toxicology Chemistry, 38: 160-166. ***Editor’s Spotlight Feature Article Click here to download.

Korstian, J.M.*, M.M. Chumchal, V.J. Bennett, A.M. Hale. 2018. Mercury contamination in bats from the central United States, Environmental Toxicology and Chemistry 37:160-165. ***Editor’s Spotlight Feature Article Click here to download.

Chumchal, M.M., R.W. Drenner, M.N. Hall**, D.K. Polk**, E.B. Williams*, C.L. Ortega-Rodriguez*, J.H. Kennedy. 2018. Seasonality of dipteran-mediated methyl mercury flux from ponds, Environmental Toxicology and Chemistry 37: 1846-1851. ***Selected by the Editor for Inclusion in a Virtual Issue on ET&C’s Website Celebrating the Minimata Convention on Mercury Click here to download.

Burnham, J., K. Burnham, M.M. Chumchal, J. Johnson, and J. Welker. 2018. Correspondence between mercury contamination and trophic position in marine and terrestrial avian species from northwest Greenland. Polar Biology, 41: 1475-1491. Click here to download.

Becker, D., M.M. Chumchal, H. Broders, J. Korstian*, T. Rainwater, S. Platt, N. Simmons, M. Fenton. 2018. Mercury bioaccumulation in bats reflects phylogeny and dietary connectivity to aquatic food webs, Environmental Pollution, 233:1076-1085. Click here to download.

Williams, E.B.*, M.M. Chumchal, R.W. Drenner, J.H. Kennedy. 2017. Seasonality of odonate-mediated methyl mercury flux from permanent and semi-permanent ponds and potential risk to red-winged blackbirds (Agelaius phoeniceus), Environmental Toxicology and Chemistry, 36: 2823-2832. ***Editor’s Spotlight Feature Article Click here to download.

Chumchal, M.M., R.W. Drenner, F. Greenhill*, J. Kennedy, C. Gober**, A. Courville** and L. Lossau**. 2017. Recovery of aquatic insect-mediated methylmercury flux from ponds following drying disturbance, Environmental Toxicology and Chemistry, 36:1986-1990. Click here to download.

Becker, D., M.M. Chumchal, A. Bentz, S. Platt, G. Czirják, T. Rainwater, S. Altizer, Sonia, D. Streicker. 2017. Predictors and immunological consequences of sublethal mercury exposure in vampire bats. Royal Society Open Science, 4: 170073. Click here to download.

Chumchal, M.M., R.W. Drenner, K.J. Adams. 2016. Abundance and size distribution of permanent and temporary farm ponds in the southeastern Great Plains. Inland Waters, 6: 258-264. Click here to download.

Adams K.J.*, R.W. Drenner, M.M. Chumchal, D.I. Donato. 2016. Disparity between state fish consumption advisory systems for methyl mercury and U.S. Environmental Protection Agency Recommendations: A case student of the south central U.S. Environmental Toxicology and Chemistry, 35:247-251. Click here to download.

Schulwitz, S.E.*, M.M. Chumchal, J.A. Johnson. 2015. Mercury concentrations in birds from two atmospherically contaminated sites in north Texas, USA. Archives of Environmental Contamination and Toxicology, 69:390-398. Click here to download.

Gann, G., C. Powell, M.M. Chumchal, R. Drenner. 2015. Mercury-contaminated terrestrial spiders pose a potential risk to songbirds at Caddo Lake, Texas/Louisiana, USA. Environmental Toxicology and Chemistry, 34:303-306. Click here to download.

Chumchal, M.M. and R.W. Drenner. 2015. An environmental problem hidden in plain sight: small man-made ponds, emergent insects and mercury contamination of biota in the Great Plains. Environmental Toxicology and Chemistry, 34: 1197-1205. Click here to download.

Speir, S.L., M.M. Chumchal, R.W. Drenner, W.G. Cocke*, M.E. Lewis, H.J. Whitt**. 2014. Methylmercury and stable isotopes of nitrogen reveal a terrestrial spider consumes emergent aquatic insects. Environmental Toxicology and Chemistry, 33: 2506-2509. Click here to download.

Zapp Sluis, M.*, K.M. Boswell, M.M. Chumchal, R.J.D. Wells, B. Soulen**, J.H. Cowan, Jr. 2013. Regional variation in mercury and stable isotopes of red snapper (Lutjanus campechanus) in the northern Gulf of Mexico, USA. Environmental Toxicology and Chemistry, 32: 434-441. Click here to download.

Tweedy, B.N.*, R.W. Drenner, M.M. Chumchal, J.H. Kennedy. 2013. Effects of fish on emergent insect-mediated flux of methyl mercury across a gradient of contamination. Environmental Science and Technology, 47: 1614-1619. Click here to download.

Jones, T.A.*, M.M. Chumchal, R.W. Drenner, G.N. Timmins, W.H. Nowlin. 2013. Bottom-up nutrient and top-down fish impacts on mercury flux from aquatic ecosystems. Environmental Toxicology and Chemistry, 32: 612–618. Click here to download.

Drenner, R.W., M.M. Chumchal , C.M. Jones*, Christopher M. B. Lehmann, David A.Gay, David I. Donato. 2013. Effects of mercury deposition and coniferous forests on the mercury contamination of fish in the south central United States. Environmental Science and Technology, 47: 1274-1279. Click here to download.

Barst, B., C. Hammerschmidt, M.M. Chumchal, D. Muir, J. Smith, A.P. Roberts, T. Rainwater, P. Drevnick. 2013. Determination of mercury speciation in fish tissue with a Direct Mercury Analyzer. Environmental Toxicology and Chemistry, 32: 1237-1241. Click here to download.

Lavoie, R.*, T. Jardine, M.M. Chumchal, K. Kidd, L. Campbell. 2013. Biomagnification of mercury in aquatic food webs: a worldwide meta-analysis. Environmental Science and Technology, 47: 13385–13394. ***Highly cited paper - Thomas Reuters Essential Science Indicators. Click here to download.

Henderson, B.L., M.M. Chumchal, R.W. Drenner, Y.Deng,** P.Diaz, W.H. Nowlin. 2012. Effects of fish on mercury contamination of macroinvertebrate communities of grassland ponds. Environmental Toxicology and Chemistry 31: 870-876. Click here to download.

Fry, B., M.M. Chumchal. 2012. Mercury bioaccumulation in estuarine food webs. Ecological Applications, 22: 606–623. Click here to download.

Fry, B. and M.M. Chumchal. 2011. Sulfur stable isotope indicators of residency in estuarine fish. Limnology and Oceanography. 56:1563–1576. Click here to download.

Drenner, R.W. M.M. Chumchal, S.P. Wente, M. McGuire*, and S.M. Drenner**. 2011. Landscape-level patterns of mercury contamination of fish in North Texas. Environmental Toxicology and Chemistry 30:2041–2045. Click here to download.

Chumchal, M.M., T.R. Rainwater, S.C. Osborn**, A.P. Roberts, M.T. Abel*, G.P. Cobb, P.N. Smith, and F.C. Bailey. 2011. Mercury speciation and biomagnification in the food web of Caddo Lake (TX/LA, USA), a subtropical freshwater ecosystem. Environmental Toxicology and Chemistry 30: 1153–1162. Click here to download.

Becker, J.C*., A.W. Groeger, W.H. Nowlin, M.M. Chumchal, D. Hahn. 2011 Spatial variability in the speciation and bioaccumulation of mercury in an arid subtropical reservoir ecosystem. Environmental Toxicology and Chemistry 30: 2300–2311. Click here to download.

Barst, B.D., A.K. Gevertz**, M.M. Chumchal, J.D. Smith, T.R. Rainwater, P.E. Drevnick, K.E. Hudelson*, G.F. Verbeck, A.Hart, and A.P. Roberts. 2011. Mercury accumulates in melanomacrophage aggregates in wild fish livers: Evidence of link between Hg exposure and negative effects on health in wild fish. Environmental Science and Technology 45: 8982–8988. Click here to download.

Chumchal, M.M., R.W. Drenner, D.R. Cross and K. D. Hambright. 2010. Mercury contamination of three species of forage fish from Caddo Lake, Texas, USA. Journal of Environmental Sciences, 22:1158-1163. Click here to download.

Smith, A., A.A. Abuzeineh, M.M. Chumchal, T. H. Bonner, and W.H. Nowlin. 2010. Mercury contamination of the Rio Grande/Rio Bravo del Norte fish community: Spatial variation and the influence of environmental gradients. Environmental Toxicology and Chemistry, 29: 1762-1772. Click here to download.

Hill, J.J.*, M. M. Chumchal, R.W. Drenner, J.E. Pinder III and S. M. Drenner**. 2010. Use of preserved museum fish to evaluate historical and current mercury contamination in fish from two rivers in Oklahoma, USA. Environmental Monitoring and Assessment, 161: 509-516. Click here to download.

^^Burks, R. L. and M.M. Chumchal. 2009. To co-author or not to co-author: How to write, publish, and negotiate issues of authorship with undergraduate research students. Science Signaling, 2: Teaching Resource 3. Click here to download.

Chumchal, M.M. and K.D. Hambright. 2009. Ecological factors regulating mercury contamination of fish from Caddo Lake, Texas, USA. Environmental Toxicology and Chemistry, 28:962–972. Click here to download.

Wells, R.J.D., M.M. Chumchal, J.H. Cowan Jr. 2008. Effect of trawling and habitat on mercury concentration in juvenile red snapper, Lutjanus campechanus, from the northern Gulf of Mexico. Transactions of the American Fisheries Society 137:1839-1840.Click here to download.

Chumchal, M.M., R.W. Drenner, B. Fry, K.D. Hambright, and L.W. Newland. 2008. Habitat-specific differences in mercury concentrations in a top predator from a shallow lake. Transactions of the American Fisheries Society 137:195–208. Click here to download.

^^Walvoord, M.E., M.H. Hoefnagels, D.D. Gaffin, D.A. Long, and M.M. Chumchal. 2008. An analysis of calibrated peer review (CPR) in a science lecture classroom. Journal of College Science Teaching March/April: 66-73. Click here to download.

McClain, W.*, M.M. Chumchal, R.W. Drenner, and L. Newland. 2006. Mercury concentrations in fish from Lake Meredith, Texas: Implications for the issuance of fish consumption advisories. Environmental Monitoring and Assessment 123:249-258. Click here to download.

Drenner, R.W., M.M. Chumchal, D.H. Marshall, J.L. Owens, and M.R. Ernst. 2005. Changes in water quality following renovation of a water supply reservoir. Proceedings of the International Association of Theoretical and Applied Limnology (formerly Verhandlungen Internationale Vereinigung für theoretische und angewandte Limnologie) 29: 979-981. Click here to download.

Chumchal, M.M., W.H. Nowlin, and R.W. Drenner. 2005. Biomass dependent effects of common carp on water quality in shallow ponds. Hydrobiologia 545:271-277. Click here to download.

Ginat, J. and M.M. Chumchal. 2005. Postscript: Focusing on peace – Building trust and understanding. In: Water in the Jordan Valley: Technical Solutions & Regional Cooperation. K.D. Hambright, F.J. Ragep, and J. Ginat, eds. University of Oklahoma Press. Click here to download.

Chumchal, M.M. and R.W. Drenner. 2004. Interrelationships between phosphorus loading and common carp in the regulation of phytoplankton biomass. Fundamental and Applied Limnology (formerly Archiv Für Hydrobiologie) 161:147-158. Click here to download.