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- B.A. Biology, State University of New York at Potsdam
- B.A. History, State University of New York at Potsdam
- Ph.D. Ecology, Evolution, and Behavior, Indiana University
- Invertebrate Zoology (Fall semesters)
- Animal Biology (Spring Semesters)
- I am an evolutionary ecologist focusing primarily on populations and communities. I seek to understand the biology of invasions by studying the causes of success of an
invasive snail, Potamopyrgus, and the effects on trout introductions in alpine lakes. I also study
ecological stoichiometry and have applied a stoichiometric perspective to understand the distribution of organismal ploidy level, parasite-host
interactions, and biological invasions.
Current Graduate Students
- Spencer Cruz, PhD student: ecological stoichiometry and functional trait diversity
- Briante Najev (co-advised with Maurine Neiman), PhD student: the role of phosphorus limitation in the maintenance of ploidy polymorphism and
sexual reproduction in a New Zealand freshwater snail
- Elle Wimmer, MSc student: phenotypic plasticity in novel environments
- Jordan Von Eggers (co-advised with Bryan Shuman), PhD student: using lake cores to reconstruct the effects of fish introduction, nutrient levels,
and climate change in alpine lakes.
Past Graduate Students
- Lindsey Boyle, MSc 2020: Effects of fish and nutrients on zooplankton assemblages in alpine lakes in the Wind River Range, WY.
- Michele Larson- Ph.D. 2018: Invasion biology of
- Daniel Greenwood - MSc 2018: Causes and consequences of the boom and bust of an
- Tonya Anderson - MSc 2013: Life histories of Daphnia after the introduction
of lake trout into Yellowstone Lake.
- Brenna Hansen - MSc 2013: Behavioral and physiological
mechanisms for coping with phosphorus limitation in invasive
- Charlotte Narr - MSc 2011: Effects of the stoichiometry of host food on parasite virulence
and transmission; freshwater gastropod survey of Wyoming
- Heather Thon - MSc 2011: Invasive snail
halt the growth of native snails
- Larson M.D., Levri E.P., Huzurbazar S.V,. Greenwood D.J., Wise K.L., Krist A.C. 2020 No evidence for a dilution effect of the
non-native snail, Potamopyrgus antipodarum, on native snails.PLoS ONE 15(10): e0239762. https://doi.org/10.1371/journal.pone.0239762
- Larson, M.D. and Krist, A.C. 2020. Trematode prevalence and an invasive freshwater snail: fewer infections and parasites
likely contribute to the success of an invasive snail. Biological Invasions22: 1279-1287, doi 10.1007/s10530-019-02179-3
- Greenwood, D.J., R.O. Hall Jr., T.M. Tibbets, Krist, A.C 2020. A precipitous decline in an invasive snail population
cannot be explained by a native predator. Biological Invasions 22: 363-378.
- Narr C.F. Krist, A.C. 2020. Improving estimates of richness, habitat associations, and assemblage characteristics of
freshwater gastropods. Aquatic Conservation: Marine and Freshwater Ecosystems 30: 131-143.
- Larson, M.D., Dewey, J.C. Krist, A.C 2020. Invasive
Potamopyrgus antipodarum (New Zealand mudsnails) and native snails differ in sensitivity to specific electrical conductivity and cations.
Aquatic Ecology 54: 103-117.
- Krist, A.C , L. Bankers, K. Larkin, M.D. Larson, D.J. Greenwood, M.A. Dyck, M. Neiman, 2017. Phosphorus availability
in the source population influences response to dietary phosphorus quantity in a New Zealand freshwater snail. Oecologia 185: 595-605.
- Neiman, M. and Krist, A.C . 2016.
Sensitivity to dietary phosphorus limitation in native
vs. invasive lineages of a New Zealand freshwater
snail. Ecological Applications 26:2218-2224. DOI: 10.1002/eap.1372
- Krist, A.C. , A.D.Kay, E. Scherber, K. Larkin, B.J. Brown,
D. Lu, D.T. Warren, R. Riedl, M. Neiman. 2016. Evidence for
extensive but variable nutrient limitation in New Zealand
lakes. Evolutionary Ecology 30(5) 973-990. DOI 10.1007/s10682-016-9855-2
- Hansen, B., T.M. Tibbets, Krist, A.C. 2016. Foraging differences between the native snail, Fossaria
sp. and the invasive New Zealand mudsnail, (Potamopyrgus
antipodarum) in response to phosphorus limitation. Aquatic
Ecology 50:297. doi 10.1007/s10452-016-9578-z
- Narr, C.F., Krist, A.C.. 2015. Host diet
alters trematode replication and elemental composition. Freshwater
Science 34(1): 81-91
- Levri, E.P. Krist, A.C., R. Bilka,
M.F. Dybdahl. 2014. Phenotypic plasticity of the introduced
New Zealand mud snail, Potamopyrgus antipodarum compared to
sympatric native snails. PLOS ONE 9(4): e93985
- Krist, A.C., A.D. Kay, K. Larkin, M. Neiman. 2014. Response to phosphorus limitation varies among lake
populations of the freshwater snail, Potamopyrgus
antipodarum. PLOS ONE 9(1): e85845
- Neiman, M., A.D. Kay, and A.C. Krist. 2013. Sensitivity to phosphorus limitation increases with ploidy
level in a New Zealand snail. Evolution 67: 1511-1517.
- Neiman, M., A.D. Kay, and A.C. Krist. 2013. Can
resource costs of polyploidy provide an advantage to sex? Heredity
- Krist, A.C. and Charles, C.C. 2012. The invasive New Zealand mudsnail,
Potamopyrgus antipodarum, is an effective grazer of algae and altered the assemblage of diatoms
more than native grazers. Hydrobiologia 694: 143-151.
- Tibbets, T. M., Krist, A. C. , Hall, R.O. Jr.,
Riley, L. A. 2010. Phosphorus-mediated changes in life
history traits of the invasive New Zealand mudsnail
Potamopyrgus antipodarum. Oecologia 163:549-559.
- Krist, A. C. . 2008. Phenotypic correlations
reveal evidence for growth costs but not survival costs in a
freshwater snail. Evolutionary Ecology Research 10: 1-9.
- Krist, A. C. and Showsh, S.A. 2007. Experimental evolution
of antibiotic resistance in bacteria. American Biology Teacher 69:218-221.
- Krist, A. C. 2006. Prevalence of
parasites does not predict age at first reproduction or reproductive
output in the freshwater snail, Helisoma anceps . Evolutionary
Ecology Research 8: 753-763.
- Dybdahl, M.F., and , A. C. Krist . 2004. Genotypic
versus condition effects on parasite-driven rare advantage. Journal of Evolutionary Biology 17: 967-973.
- Krist, A. C ., J. Jokela, J. Wiehn, and
C.M. Lively. 2004. Effects of host condition on susceptibility to infection,
parasite development rate, and parasite transmission in a
snail-trematode interaction. Journal of Evolutionary Biology 17: 33-40.
- Krist, A. C. 2002. Crayfish induce a
defensive shell shape in a freshwater snail. Invertebrate
- Krist, A. C. 2001. Variation in fecundity
among populations of snails is predicted by prevalence of castrating
parasites. Evolutionary Ecology Research 3:191--197.
- Krist, A. C., C. M. Lively, E. P. Levri,
J.Jokela 2000. Spatial variation in susceptibility to infection in a
snail-trematode interaction. Parasitology 121:395--401.
- Krist, A. C. 2000. Effects of the digenean parasite
Proterometra macrostoma on host morphology in the freshwater snail
Elimia livescens. Journal of Parasitology 86: 262--267
- Krist, A. C. and C. M. Lively.
1998. Experimental exposure of juvenile snails (Potamopyrgus
antipodarum ) to infection by trematode larvae (Microphallus
sp.): infectivity, fecundity compensation and growth. Oecologia 116: