Link to Rachel Penczykowski’s Google Scholar profile
If you would like to read any of these papers and cannot access them freely, please email rpenczykowski@wustl.edu, and Rachel will be happy to send you a free pdf.

Trainees: **=undergraduate

2023

Sieg, R. D., J. K. Hubbard, R. M. Penczykowski, M. Williard, and Z. A. Dwyer. 2023. A novel course-based experience to promote ecological field skills during the COVID-19 pandemic. Science Education and Civic Engagement: An International Journal, 15:31–41.

2022

Koltz, A. M., D. J. Civitello, D. J. Becker, S. L. Deem, A. T. Classen, B. T. Barton, M. Brenn-White, Z. E. Johnson, S. Kutz, M. Malishev, D. L. Preston, J. T. Vannatta, R. M. Penczykowski, and V. O. Ezenwa. 2022. Sublethal effects of parasitism on ruminants can have cascading consequences for ecosystems. PNAS, 119:e2117381119. (co-last authors)
Link to press release from WashU

Lembrechts, J. J., J. van den Hoogen, SoilTemp consortium [>400 authors including R. M. Penczykowski], et al. 2022. Global maps of soil temperature. Global Change Biology, 28:3110–3144.

Penczykowski, R. M., S. R. Hall, M. S. Shocket, J. Housley Ochs, B. C. P. Lemanski**, H. Sundar**, and M. A. Duffy. 2022. Virulent disease epidemics can increase host density by depressing foraging of hosts. American Naturalist, 199:75–90.
Link to press release from WashU

2021

Potter, J. J., S. Tan, and R. M. Penczykowski. 2021. Robotany: a portable, low-cost platform for precise automated aerial imaging of field plots. Methods in Ecology and Evolution, 12:1860–1866.
Link to video tutorial

Penczykowski, R. M. and R. D. Sieg. 2021. Plantago spp. as models for studying the ecology and evolution of species interactions across environmental gradients. American Naturalist, 198:158–176.

Duffy, M. A., C. Garcia-Robledo, S. Gordon, N. A. Grant, D. A. Green II, A. Kamath, R. M. Penczykowski, M. Rebolleda Gómez, N. Wale, and L. Zaman. 2021. Model systems in ecology, evolution, and behavior: A call for diversity in our model systems and discipline. American Naturalist, 198:53–68.

Ezenwa, V. O., D. J. Civitello, A. T. Classen, B. T. Barton, D. J. Becker, M. Brenn-White, S. L. Deem, S. Kutz, M. Malishev, R. M. Penczykowski, D. L. Preston, J. T. Vannatta, and A. M. Koltz. 2021. Response to Charlier et al.: Climate-disease feedbacks mediated by livestock methane emissions are plausible. Trends in Ecology & Evolution, 36:578–579.

2020

Ezenwa, V. O., D. J. Civitello, B. T. Barton, D. J. Becker, M. Brenn-White, A. T. Classen, S. L. Deem, Z. E. Johnson, S. Kutz, M. Malishev, R. M. Penczykowski, D. L. Preston, J. T. Vannatta, and A. M. Koltz. 2020. Infectious diseases, livestock, and climate: a vicious cycle?Trends in Ecology & Evolution, 35:959–962.
Link to press release from WashU

Halliday, F. W., R. M. Penczykowski, B. Barrès, J. L. Eck, E. Numminen, and A.-L. Laine. 2020. Facilitative priority effects drive pathogen community assembly in a wild-plant pathosystem. Nature Ecology & Evolution, 4:1510–1521. (co-first and co-corresponding authors)
Link to press release from WashU

Ives, A. R., B. T. Barton, R. M. Penczykowski, J. P. Harmon, K. L. Kim, K. Oliver, and V. C. Radeloff. 2020. Self-perpetuating ecological-evolutionary dynamics in an agricultural host-parasite system. Nature Ecology & Evolution, 4:702–711.

2018

Penczykowski, R. M., S. R. Parratt, B. Barrès, S. K. Sallinen**, and A-L Laine. 2018. Manipulating host resistance structure reveals impact of pathogen dispersal and environmental heterogeneity on epidemics. Ecology, 99:2853–2863.

2017

Hite, J. L., R. M. Penczykowski, M. S. Shocket, K. Griebel, A. T. Strauss, M. A. Duffy, C. E. Cáceres, and S. R. Hall. 2017. Allocation, not male resistance, increases male frequency during epidemics: a case study in facultatively sexual hosts. Ecology, 98:2773–2783.

Penczykowski, R. M., B. M. Connolly, and B. T. Barton. 2017. Winter is changing: trophic interactions under altered snow regimes. Food Webs, 13:80–91.

Parratt, S. R., B. Barrés, R. M. Penczykowski, and A-L Laine. 2017. Local adaptation at higher trophic levels: Contrasting hyperparasite-pathogen infection dynamics in the field and laboratory. Molecular Ecology, 26:1964–1979.

2016

Strauss, A. T., M. S. Shocket, D. J. Civitello, J. L. Hite, R. M. Penczykowski, M. A. Duffy, C. E. Cáceres, and S. R. Hall. 2016. Habitat, predators, and hosts regulate disease in Daphnia through direct and indirect pathways. Ecological Monographs, 86:393–411.

Hite, J. L., R. M. Penczykowski, M. S. Shocket, A. T. Strauss, P. A. Orlando, M. A. Duffy, C. E. Cáceres, and S. R. Hall. 2016. Parasites destabilize host populations by shifting stage-structured interactions. Ecology, 97:439–449.

Penczykowski, R. M., A-L Laine, and B. Koskella. 2016. Understanding the ecology and evolution of host–parasite interactions across scales. Evolutionary Applications, 9:37–52.

2015

Civitello, D. J., R. M. Penczykowski, A. Smith, M. S. Shocket, M. A. Duffy, and S. R. Hall. 2015. Resources, key traits, and the size of fungal epidemics in Daphnia populations. Journal of Animal Ecology, 84:1010–1017.

Penczykowski, R. M., E. Walker, S. Soubeyrand, and A-L Laine. 2015. Linking winter conditions to regional disease dynamics in a wild plant-pathogen metapopulation. New Phytologist, 205:1142–1152.

2014

Penczykowski, R. M., B. C. P. Lemanski, R. D. Sieg, S. R. Hall, J. Housley Ochs, J. Kubanek, and M. A. Duffy. 2014. Poor resource quality lowers transmission potential by changing foraging behaviour. Functional Ecology, 28:1245–1255.

Penczykowski, R. M., S. R. Hall, D. J. Civitello, and M. A. Duffy. 2014. Habitat structure and ecological drivers of disease. Limnology & Oceanography, 59:340–348.

2013

Auld, S. K. J. R., R. M. Penczykowski, J. Housley Ochs, D. C. Grippi, S. R. Hall, and M. A. Duffy. 2013. Variation in costs of parasite resistance among natural host populations. Journal of Evolutionary Biology, 26:2479–2486.

Civitello, D. J., R. M. Penczykowski, J. L. Hite, M. A. Duffy, and S. R. Hall. 2013. Potassium stimulates fungal epidemics in Daphnia by increasing host and parasite reproduction. Ecology, 94:380–388.

2012

Duffy, M. A., J. Housley Ochs, R. M. Penczykowski, D. J. Civitello, C. A. Klausmeier, and S. R. Hall. 2012. Ecological context influences epidemic size and parasite-driven evolution. Science, 335:1636–1638.

2011

Duffy, M. A., J. M. Housley, R. M. Penczykowski, C. E. Cáceres, and S. R. Hall. 2011. Unhealthy herds: indirect effects of predators enhance two drivers of disease spread. Functional Ecology, 25:945–953.

Thomas, S. H., J. M. Housley, A. N. Reynolds, R. M. Penczykowski, K. H. Kenline, N. Hardegree, S. Schmidt, and M. A. Duffy. 2011. The ecology and phylogeny of oomycete infections in Asplanchna rotifers. Freshwater Biology, 56:384–394.

Penczykowski, R. M., S. E. Forde, and M. A. Duffy. 2011. Rapid evolution as a possible constraint on emerging infectious diseases. Freshwater Biology, 56:689–704.

2009

Kamarainen, A. M., R. M. Penczykowski, M. C. Van de Bogert, P. C. Hanson, and S. R. Carpenter. 2009. Phosphorus sources and demand during summer in a eutrophic lake. Aquatic Sciences, 71:214–227.