Caroline Marschner

Caroline is an extension associate working in weed ecology and invasive forest pests. She has hopscotched across the country studying ecology – forests in New York, prairies in Washington State, riparian systems in Oregon, arid lands in Colorado, and research for her master’s on lakes in Ohio. She was introduced to agricultural systems when she joined the DiTommaso lab in 2010, and has been working with agricultural weeds ever since. In 2015 she joined the NYS Hemlock Initiative, where she conducts project management and extension programs for hemlock conservation.

Caroline is currently working on:

• Agricultural Weed Management in a Changing Climate, synthesizing information for New York dairy and field crop farmers on the ways climate change is impacting weed ecology and management
• Weed emergence modeling, working with collaborators across the Northeast to build a decision tool to help farmers time their weed management most effectively for their problem weed species
• Assisting landowners and land managers with hemlock conservation planning as hemlock woolly adelgid spreads across New York
• Working with partners to develop best practices for management of areas where hemlocks have been lost, focusing on maintaining forest and increasing climate resilience and mitigation.

Caroline serves on the steering committee of the Northeast Regional Invasive Species and Climate Change management group, and is a member of the Weed Science Society of America.

Publications

Peer reviewed

• DiTommaso, A., Milbrath, L.R., Marchner, C.A., Morris, S.H., Westbrook, A.S. (2020) Seed germination ecology of meadow knapweed (Cenaurea x moncktonii) populations in New York State, USA. Weed Science; 69(1):1-32.
• Mohler, C. L., Caldwell, B. A., Marschner, C. A., Cordeau, S., Maqsood, Q, Ryan, M. R., & DiTommaso, A. (2018). Weed Seedbank and Weed Biomass Dynamics and a long-Term Organic Vegetable Cropping Systems Experiment. Weed Science; 66(5):611-626.
• Mohler, C., Marschner, C. A., Caldwell, B. A., & DiTommaso, A. (2016). Weed Mortality Caused by Row-Crop Cultivation in Organic Corn-Soybean-Spelt Cropping Systems. Weed Technology, 30(3): 648-654.
• DiTommaso, A., Darbyshire, S. J., Marschner, C. A., & Averill, K. M.  (2014). Japanese Hedgeparsley (Torilis japonica): A New Invasive Species in the United States? Invasive Plant Science and Management 7(4):553-560.
• Duncan, J. M., Marschner, C. A., & Gonzalez, M. J. (2011). Diet partitioning, habitat preferences and behavioral interactions between juvenile yellow perch and round goby in nearshore areas of Lake Erie.  Journal of Great Lakes Research, 37(1): 101 – 110.
• Dunwiddie, P., Alverson, E., Stanley, A., Gilbert, R., Pearson, S., Hays, D., Arnett, J., Delvin, E., Grosboll, D., & Marschner, C. (2006). The vascular plant flora of the south Puget Sound prairies. Davidsonia 17(2):51–69.

Popular articles

• Caroline Marschner and Mark Whitmore. 2020. Regional Hemlock Prioritization Toolkit. Management tool for prioritization of hemlock resources across multiple properties or a region. Published by NYSHI and available on the NYSHI website.
• Caroline Marschner and Mark Whitmore. 2020. Landowner Hemlock Prioritization Toolkit. Management tool for prioritization of hemlock resources on a single property. Published by NYSHI and available on the NYSHI website.
• Caroline Marschner 2020. Prepare for Hemlock Woolly Adelgid. St. Lawrence/Eastern Lake Ontario PRISM Fall 2020 Newsletter, p. 5.
• Caroline Marschner 2018. “Plant Profile: Eastern Hemlock”, Solidago 19 (3), Finger Lakes Native Plant Society Newsletter, page 9-11.
• Caroline Marschner 2017. New York State Hemlock Initiative: Summer 2017 Update. SLELO PRISM Summer 2017 Newsletter, p2.
• Mark Whitmore and Caroline Marschner. 2016. Woodland Health: Let's Pitch In To Save The Hemlocks! The New York Forest Owner, 54(1).
• Carri Marschner. 2015 The Finger Lakes Hemlock Initiative. Happenings: Newsletter of the Finger Lakes Institute, December issue.