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Susannah French

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Physiological ecology, life history trade-offs, immunity, conservation

Associate Professor - Biology Department | Ecology Center

Associate Professor

Contact Information

Office Location: BNR 343
DialPhone: 435-797-9175
SendEmail: sfrench@biology.usu.edu


Educational Background

PhD, Physiology, (Ecology), Arizona State University, 2006
Occurrance and Regulation of Physiological Trade-offs Between the Reproductive and Immune Systems
BS, Ecology, Ethology and Evolution, (Chemistry), University of Illinois at Urbana-Champaign, 2002

Publications - Abstracts

  • French, S., Moore, M.C, Demas, G.E, (2009). Ecoimmunology: The organism in context. Intergrative and Comparative Biology
  • Chester, E.M, French, S., Demas, G.E, (2009). Evidence for a trade-off between immunity and reproduction in the pregnant Siberian hamster?. Integrative and Comparative Biology
  • French, S., McLemore, R., Vernon, B., Johnston, G.I, Moore, M.C, (2007). Evidence for a trade-off between immunity and reproduction in the pregnant Siberian hamster? . Integrative and Comparative Biology
  • French, S., DeNardo, D.F, Johnston, G.I, Moore, M.C, (2006). Immune and reproductive systems compete for resources in female tree lizards (Urosaurus ornatus). Integrative and Comparative Biology
  • French, S., Moore, M.C, (2005). Immune Function Varies with Reproductive Stage in Female and Male Tree Lizards, Urosaurus ornatus. Integrative and Comparative Biology
  • French, S., Moore, M.C, (2004). Effects of stress on immune function in male tree lizards (Urosaurus ornatus). Integrative and Comparative Biology

Publications - Books & Book Chapters

    Book Chapters

  • Smith, G.D, Lucas, L.D, French, S., (2013). Town and Country Lizards: Physiological Ecology of Side-blotched Lizards Across a Variable Landscape: In Reptiles in Research: Investigations of Ecology, Physiology, and Behavior from Desert to Sea.
  • Demas, G.E, Greives, T.J, Chester, E.M, French, S., (2011). The energetics of immunity: Mechanisms mediating trade-offs in eco-immunology: Ecoimmunology. Oxford University Press

* Has not been peer reviewed

Publications - Fact Sheets

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    Publications - Curriculum

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      Publications - Journal Articles

        Academic Journal

      • Mohammadi, S., French, S., Neuman-Lee, L.A, Durham, S.L, Kojima, Y., Mori, A., Brodie, E.D, Savitzky, A., (2017). Corticosteroid responses of snakes to toxins from toads (bufadienolides) and plants (cardenolides) reflect differences in dietary specializations. General and Comparative Endocrinology, 247, 16-25.
      • Neuman-Lee, L.A, French, S., (2017). Endocrine-reproductive-immune interactions in female and male Galápagos marine iguanas . Hormones and Behavior , - .
      • Neuman-Lee, L., Grieves, T., Hopkins, G.R, French, S., (2017). The role of the kisspeptin system in regulation of the reproductive endocrine axis and territorial behavior in male side-blotched lizards (Uta stansburiana) . Hormones and Behavior , 89, 48 - 54.
      • Neuman-Lee, L.A, Brodie Jr, E.D, Hansen, T., Brodie III, E.D, French, S., (2017). To stress or not to stress: Physiological responses to tetrodotoxin in resistant gartersnakes vary by sex. Comparative Biochemistry and Physiology, Part A. , 209, 34-40.
      • Ranglack, D.H, Neuman-Lee, L.A, French, S., Du Toit, J.T, (2016). Considerations of context and scale when using fecal glucocorticoids to indicate stress in large mammals: a study of wild American plains bison. Peer J Preprints, doi: 4:e2092v1 *
      • Spence, A.A, Hopkins, G.R, Neuman-Lee, L.A, Smith, G.D, Brodie, E.D, French, S., (2016). Detrimental effect of zinc oxide nanoparticles on amphibian life stages.. Journal of Experimental Zoology A
      • Skinner, H.M, Durso, A.M, Neuman-Lee, L.A, Durham, S.L, Mueller, S.D, French, S., (2016). Effects of Diet Restriction and Diet Complexity on Life History Strategies in Side-Blotched Lizards (Uta stansburiana). Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 325:9, 626–637.
      • Hopkins, G.R, Brodie, E.D, Neuman-Lee, L.A, Mohammadi, S., Hopkins, Z.M, French, S., (2016). Physiological Responses to Salinity Vary with Proximity to the Ocean in a Coastal Amphibian. Physiological and Biochemical Zoology, 89:4, 322-330.
      • French, S., Chester, E.M, Demas, G.E, (2016). Timing of Maternal Immunization Affects Immunological and Behavioral Outcomes of Adult Offspring in Siberian Hamster (Phodopus sungorus). Journal of Experimental Zoology A
      • Neuman-Lee, L.A, Brodie, E.D, Hansen, T., Brodie III, E.D, French, S., (2016). Comparing the natural and anthropogenic sodium channel blockers tetrodotoxin and indoxacarb in gartersnakes. Journal of Experimental Zoology A, 325:4, 255-264.
      • French, S., (2015). Effects of temperature on embryonic and early larval growth anddevelopment in the rough-skinned newt (Taricha granulosa). . Journal of Thermal Biology, 51, 89-95.
      • Neuam-Lee, L., Fokidis, H.B, Spence, A.R, Van der Walt, M., Smith, G.D, Durham, S., French, S., (2015). Food restriction and chronic stress alter energy use and affect immunity in an infrequent feeder. Functional Ecology, 29:11, 1453-1462.
      • Stokes, A.N, Ray, A.M, Buktenica, M.W, Gall, B.G, Paulson, E., Paulson, D., French, S., Brodie III, E.D, Brodie, E.D, (2015). Otter predation on Taricha granulosa and variation in tetrodotoxin levels with elevation.. Northwestern Naturalist, 96:1
      • Neuman-Lee, L.A, Carr, J., Vaughn, K., French, S., (2015). Physiological effects of polybrominated diphenyl ether (PBDE-47) on pregnant gartersnakes and resulting offspring. General and Comparative Endocrinology, 219, 143-151.
      • Neuman-Lee, L.A, Stokes, A.N, Greenfield, S., Hopkins, G.R, Brodie, E.D, French, S., (2015). The role of corticosterone and toxicity in the antipredator behavior of the Rough-skinned Newt (Taricha granulosa).. General and Comparative Endocrinology, 213, 59-64.
      • Goller, M., Goller, F., French, S., (2014). A heterogeneous thermal environment enables remarkable behavioral thermoregulation in Uta stansburiana. Ecology and Evolution, 4:17, 3319–3329.
      • Stokes, A.N, Ducey, P.K, Neuman-Lee, L., Hanifin, C.T, French, S., Pfrender, M.E, Brodie, III, E.D, Brodie, Jr, E.D, (2014). Confirmation and distribution of tetrodotoxin for the first time in terrestrial invertebrates: two terrestrial flatworm species (Bipalium adventitium and Bipalium kewense). PloS one, 9:6, e100718.
      • Hopkins, G.R, Brodie, E.D, French, S., (2014). Developmental and evolutionary history affect survival in stressful environments. PLOS ONE, 9:4, e95174.
      • Gall, B.G, Stokes, A.N, Pett, J.J, Spivey, K.L, French, S., Brodie, III, E.D, Brodie, Jr., E.D, (2014). Tetrodotoxin concentrations within a clutch and across embryonic development in eggs of the rough-skinned newts (Taricha granulosa) . Toxicon , 90:0, 249 - 254.
      • Neuman-Lee, L.A, French, S., (2014). Wound healing reduces stress-induced immune changes: Evidence for immune prioritization in the side-blotched lizard.. Journal of Comparative Physiology B, 184:5, 623-629.
      • French, S., Chester, E.M, Demas, G.E, (2013). Maternal immune activation affects neuroendocrine and behavioral responses in adult offspring. Physiology and Behavior
      • French, S., (2013). Sublethal contaminant exposure alters behavior in a common insect: Important implications for trophic transfer. Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes, 48:6, 442-448.
      • Knutie, S.A, Koop, J.A, French, S., Clayton, D.H, (2013). Experimental test of the effect of introduced hematophagous flies on corticosterone levels of breeding Darwin’s finches. General and Comparative Endocrinology, 193, 68-71.
      • Hopkins, G.R, French, S., Brodie, E.D, (2013). Increased frequency and severity of developmental deformities in rough-skinned newt (Taricha granulosa) embryos exposed to road deicing salts (NaCl & MgCl2). Environmental Pollution, 173, 264-269.
      • Hopkins, G.R, French, S., Brodie, E.D, (2013). Potential for local adaptation in response to an anthropogenic agent of selection: effects of road deicing salts on amphibian embryonic survival and development. Evolutionary Applications, 6:2, 384-392.
      • Gall, B.G, Amber, S.N, French, S., Brodie, E.D, Brodie, E.D, (2012). Female newts (Taricha granulosa) produce tetrodotoxin laden eggs after long term captivity. Toxicon, 60, 1057-1062.
      • French, S., Nueman-Lee, L.A, (2012). Improved ex vivo method for microbiocidal activity across vertebrate species. Biology Open, 1:5, 482-487.
      • Hopkins, G.R, Gall, B.G, French, S., Brodie, E.D, (2012). Interfamily variation in amphibian early life-history traits: raw material for natural selection? . Ecology and Evolution, 2:7, 1637-1643.
      • Carlton, E.D, Demas, G.E, French, S., (2012). Leptin, a neuroendocrine mediator of immune responses, inflammation, and sickness behaviors. Hormones and Behavior, 62:3, 272-279.
      • Gall, B.G, Stokes, A.N, French, S., Brodie, E.D, Brodie, E.D, (2012). Predatory caddisfly larvae sequester tetrodotoxin from their prey, eggs of the rough-skinned newt . Journal of Chemical Ecology, 38, 1351-1357.
      • Lucas, L.D, French, S., (2012). Stress-induced tradeoffs in a free-living lizard across a variable landscape: Consequences for individuals and populations . Public Library of Science One, 7:11, e49895.
      • Stokes, A.N, Williams, B.L, French, S., (2012). An improved competitive inhibition enzymatic immunoassay method for tetrodotoxin quantification.. Biological Proceedures Online, 12:14, 3. doi: 10.1186/1480-9222-14-3
      • Demas, G.E, Zysling, D.A, Beechler, B., Muehlbwin, M., French, S., (2011). Beyond Phytohemagglutinin: Assessing Vertebrate Immune Function Across Ecological Contexts. Journal of Animal Ecology, 80:4, 710-730.
      • French, S., Gonzalez-Suarez, M., Young, J.K, Durham, S., Gerber, L.R, (2011). Human disturbance influences reproductive success and growth rate in California sea lions (Zalophus californianus). Public Library of Science One, 6:3, 176-186.
      • French, S., Dearing, M., Demas, G.E, (2011). Leptin as a physiological mediator of energetic trade-offs in eco-immunology: Implications for disease. Integrative and Comparative Biology, 51:4, 505-513.
      • Demas, G.E, Adarno, S.A, French, S., (2011). Neuroendocrine-Immune Crosstalk in Vertebrates and Invertebrates: Implications for Host Defense. Functional Ecology, 25:1, 29-39.
      • Gall, B.G, Stokes, A.N, French, S., Schlepphorst, E.A, Brodie, E.D, Brodie, E.D, (2011). Tetrodotoxin levels in larval and metamorphosed newts (Taricha granulosa) and palatability to predatory dragonflies. Toxicon, 57, 978-983.
      • Garcia, N.W, Greives, T.J, Zysling, D.A, French, S., Chester, E.M, Chester, G.E, (2010). Exogenous insulin enhances humoural immune responses in short- but not long-day Siberian Hamsters (Phodopus sungorus). Proceedings of the Royal Society B, 277, 2211-2218.
      • Ruiz, M., French, S., Demas, G.E, Martins, E.P, (2010). Food supplementation and testosterone interact to influence reproductive behavior and immune function in Sceloporous graciosus. Hormones and Behavior, 57, 134-139.
      • French, S., DeNardo, D.F, Greives, T.J, Strand, C.R, Demas, G.E, (2010). Human disturbance alters endocrine and immune responses in the Galapagos marine iguana (Amblyrhynchus cristatus). Hormones and Behavior, 58:5, 792-799.
      • Greives, T.J, French, S., Zysling, D.A, Garcia, N.W, Demas, G.E, (2010). The glutamate agonist NMDA blocks gonadal regression and enhances antibody response to an immune challenge in the photoperiodic Siberian Hamster (Phodopus sungorus). Journal of Comparative Physiology B, 180:2, 267-277.
      • French, S., Moore, M.C, Demas, G.E, (2009). Ecological immunology: The organism in context. Integrative and Comparative Biology, 49:3, 246-253.
      • French, S., Greives, T.J, Zysling, D.A, Chester, E.M, Demas, G.E, (2009). Leptin increases maternal investment. Proceedings of the Royal Society B, 276, 4003-4011.
      • French, S., Moore, M.C, (2008). Immune function varies with reproductive stage and context in female and male tree lizards, Urosaurus ornatus. General and Comparative Endocrinology, 255:1, 148-156.
      • French, S., Fokidis, H.B, Moore, M.C, (2008). Variation in stress and innate immunity in the tree lizard (Urosaurus ornatus) across an urban–rural gradient. Journal of Comparative Physiology B, 178:8, 997-1005.
      • French, S., McLemore, R., Vernon, B., Johnston, G.I, Moore, M.C, (2007). Corticosterone modulation of reproductive and immune systems trade-offs in female tree lizards: long term corticosterone manipulations via injectable gelling material.. Journal of Experimental Biology, 210, 2859-2865.
      • French, S., Johnston, G.I, Moore, M.C, (2007). Immune activity suppresses reproduction in food-limited female tree lizards (Urosaurus ornatus). Functional Ecology, 21:6, 1115-1122.
      • French, S., Denardo, D.F, Moore, M.C, (2007). Trade-Offs between the reproductive and immune systems: Facultative responses to resources or obligate responses to reproduction? . The American Naturalist, 170, 79-89.
      • French, S., Matt, K.S, Moore, M.C, (2006). The effects of stress on wound healing in male tree lizards (Urosaurus ornatus). General and Comparative Endocrinology, 145:2, 128-132.
      • French, S., Rowe, K.C, Heske, E.J, (2003). Distribution of eastern chipmunks (Tamias striatus) in the Shawnee National Forest, southern Illinois: Why are they missing from the eastern Shawnee? . American Midland Naturalist, 150:1, 194-198.

      * Has not been peer reviewed

      Publications - Literary Journal

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        Publications - MultiMedia

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          Publications - Technical Reports

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            Publications - Translations & Transcripts

              Publications - Other

                * Has not been peer reviewed

                Scheduled Teaching

                BIOL 5600 - Comparative Animal Physiology, Fall 2014

                BIOL 5600 - Comparative Animal Physiology, Fall 2013

                BIOL 5600,6600 - Comparative Animal Physiology, Fall 2013

                BIOL 6240 - Physiological Ecology of Vertebrates, Fall 2013

                BIOL 5600 - Comparative Animal Physiology, Fall 2011

                BIOL 6750 - Topics in Biology, Fall 2011

                BIOL 7750 - ST:Grad Comparative Immunology, Spring 2011

                BIOL 5600 - Comparative Animal Physiology, Fall 2010

                BIOL 7750 - Topics in Biology, Fall 2010


                Graduate Students Mentored

                Emily Virgin, Biology, August 2016
                Spencer Hudson, Biology, August 2015
                Geoffry Smith, Biology, January 2012
                Andrew Durso, Biology, August 2011
                Gareth Hopkins, Biology, August 2010
                Lori Neuman-Lee, Biology, August 2010