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Education
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University of Nevada, Reno
Doctoral Candidate – Ecology, Evolution, and Conservation Biology
Advisor: Matthew L. Forister
2018 – Present
University of California, Irvine
Bachelor of Science – Earth System Science
Bachelor of Science – Ecology and Evolution
2011 – 2015
Grants, Scholarships, and awards
Graduate Student Award ($500)
2022
USDA AFRI NIFA Predoctoral Fellowship ($117,700)
2022
Winner, Student Competition for the President’s Prize ($75)
2021
GCA Centennial Pollinator Fellowship ($2,500)
2021
Hitchcock Fellowship ($13,300)
Jerry and Betty Wilson Scholarship ($4,000)
2021
2021
Joan Mosenthal DeWind Award ($5,000)
2021
Ron Leuschner Memorial Fund for Research on the Lepidoptera ($500)
2021
Ben & Beatrice Edwards Biology Scholarship ($1,200)
2020 – 2021
Outstanding Graduate Student Scholarship ($500)
2020
Graduate Research Fellowship Program (Honorable Mention)
2020
Publications
Forister, M. L., Grames, E. M., Halsch, C. A., Burls, K. J., Carroll, C. F., Bell, K. L., Jahner, J. P., Bradford, T., Zhang, J., Cong, Q., Grishin, N. V., Glassberg, J., Shapiro, A. M., and Riecke, T. V. (in review) Assessing risk for butterflies in the context of climate change, demographic uncertainty, and heterogenous data sources.
Halsch, C. A., Hoyle, S. M., Code, A., Fordyce, J. A., Forister, M. L. (in review). Lethal and sub-lethal concentrations of pesticides detected in milkweeds purchased from nurseries across the United States.
Forister, M.L., Halsch, C.A., Nice, C.C., Fordyce, J.A., Dilts, T.E., Oliver, J.C., Prudic, K.L., Shapiro, A.M., Wilson, J.K., and Glassberg, J. (2021) Fewer butterflies seen by community scientists across the warming and drying landscapes of the American West. Science 371: 1042-1045 PDF
Halsch, C.A., Shapiro, A.M., Fordyce, J.A., Nice, C.C., Thorne, J.H., Waetjen, D.P., and Forister, M.L. (2021) Insects and recent climate change. Proceedings of the National Academy of Sciences 118: e2002543117 PDF
Halsch, C.A., Code, A., Hoyle, S.M., Fordyce, J.A., Baert, N., and Forister, M.L. (2020) Pesticide contamination of milkweeds across the agricultural, urban and open spaces of low elevation Northern California. Frontiers in Ecology and Evolution 8 PDF
Halsch, C.A., Shapiro, A.M., Thorne, J.H., Waetjen, D.P., and Forister, M.L. (2020) A winner in the Anthropocene: changing host plant distribution explains geographic range expansion in the gulf fritillary butterfly. Ecological Entomology 45:652-662 PDF
Kimball, S., Long, J.J., Ludovise, S., Ta, P., Schmidt, K.T., Halsch, C.A., et al. (2019). Impacts of competition and herbivory on native plants in a community‐engaged, adaptively managed restoration experiment. Conservation Science and Practice 1:e122 PDF
Tamura, N., Lulow, M.E., Halsch, C.A., Major, M.R., Balazs, K.R., Austin, P., et al. (2017). Effectiveness of seed sowing techniques for sloped restoration sites. Restoration Ecology 25:942-952 PDF
Teaching
BIOL 750 – Research Design
Developed lessons and led labs that introduced graduate students to R coding and statistical analysis for ecological data.
Spring 2020, Spring 2021
EECB 751 – Philosophy of Science
Designed and implemented graduate course on the philosophy of science, with a focus on topics related to ecology, evolution, and conservation biology.
Fall 2020
BIOL 437 – Entomology
Organized and led labs on insect identification and taxonomy.
Spring 2019
Crystal Cove Conservancy, Newport Beach, CA
Designed and implemented citizen science education programs for K-12 students in partnership with California State Parks and University of California Irvine researchers.
Spring 2016 – Spring 2018
Volunteering and Public Outreach
Co-President – Nerd Nite, Reno, Community Engagement and Lecture Series
President – Plant-Animal Interactions Club
Board member – Nevada Bugs and Butterflies
2019-Present
2018-Present
2020-2022
Presentations
Halsch, C.A., Shapiro, A.M., Parra, A.S., Rodman, K.C., Thorne, J.H., Forister, M.L. 2022.Separating the direct and indirect effects of climate change on butterflies in the Sierra Nevada, CA using remote sensing data. Entomological Society of America Pacific Branch Annual Meeting, Santa Rosa, CA. Invited symposium presentation.
Halsch, C.A., Shapiro, A.M., Parra, A.S., Thorne, J.H., Forister, M.L. 2021.Climate change and butterflies: Can we use long-term data to separate direct effects on individuals from plant-mediated indirect effects? Entomological Society of America Annual Meeting, Denver, CO. Oral presentation.
Forister, M.L., Bell, K.L., Carroll, C., Grames, E.M., Halsch, C.A., Riecke, T.V. 2021. Setting conservation priorities for insects in the context of diverse and interacting stressors. Entomological Society of America Annual Meeting, Denver, CO. Oral presentation.
Halsch, C.A., Shapiro, A.M., Forister, M.L. 2020. Understanding global change and butterflies with western North America’s longest-running monitoring study. Entomological Society of America Annual Meeting (virtual). Invited symposium presentation.
Halsch, C.A., Shapiro, A.M., Forister, M.L. 2019. The Spatial and Temporal Story of the Expanding Gulf Fritillary Butterfly. The Lepidopterist’s Society Annual Meeting, Davis, CA. Oral presentation.
Halsch, C.A., Shapiro, A.M., Forister, M.L. 2019. An Expanding Fritness Landscape: Minimum Temperatures, Host Plant Distribution, and the Expansion of the Gulf Fritillary. Entomological Society of America Annual Meeting, St. Louis, MO. Poster Presentation.
Journal Reviews
Ecology, Ecological Applications, Journal of Biogeography, Journal of Insect Conservation, Ecological Entomology, Global Change Biology, Annals of the Entomological Society of America, Landscape Ecology