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Associate Research Scientist
- B.A. Biology, State University of New York at Potsdam
- B.A. History, State University of New York at Potsdam
- Ph.D. Ecology and Evolutionary Biology, Indiana University
- In my research, I seek to develop our understanding of host-parasite relationships and the biology of invasions in an ecological and evolutionary context. For example, I study the role of ecological stoichiometry in the success of the non-native New Zealand mud snail and the ecological and evolutionary consequences of the introduction of lake trout to zooplankton in Yellowstone Lake. Using snail-trematode interactions, I also study the consequences of parasitism to the evolution of host-life histories and how varying the stoichiometry of food alters the outcome of snail-trematode interactions.
Current Graduate Students
- Michele Larson- Ph.D. student: invasion biology of
- Tonya Chamberlain - MSc student: Life histories of zooplankton after the introduction
of lake trout into Yellowstone Lake.
Past Graduate Students
- Brenna Hansen - MSc 2013: behavioral and physiological
mechanisms for coping with phosphorus limitation in invasive
- Charlotte Narr - MSc 2011: freshwater gastropod survey of Wyoming;
effects of the stoichiometry of host food on parasite virulence and transmission
- Heather Thon - MSc 2011: interactions between the invasive --
New Zealand mud snail and the native snail Fossaria
- Krist, A.C., A.D. Kay, K. Larkin, M. Neiman. in
press. Response to phosphorus limitation varies among lake
populations of the freshwater snail, Potamopyrgus
antipodarum. PLOS ONE
- 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: