Dr. Karin Kettenring

Watershed Sciences / Ecology Center

Professor


Karin M. Kettenring

Contact Information

Office Hours: By Appointment
Office Location: NR 230
Email: karin.kettenring@usu.edu
Additional Information:

Educational Background

PhD, Applied Plant Sciences, University of Minnesota, 2006
Seed ecology of wetland Carex species - implications for restoration
BA, Biology, Oberlin College, 1998

Biography

Karin received her PhD in Applied Plant Sciences from the University of Minnesota. Before coming to USU in 2008, she was a Postdoctoral Fellow at the Smithsonian Environmental Research Center in Edgewater, MD. Her research interests include the restoration of plant communities in wetlands and the ecology and management of invasive plants. Her PhD research focused on the seed ecology and revegetation of sedges (Carex species) in prairie pothole wetlands. During her postdoctoral research, she studied the genetics and spread of the non-native plant Phragmites australis (common reed), which is invading wetlands across North America. At USU, she continues to develop her research program in wetland plant ecology and teaches courses in wetland ecology and management, plant ecology, and restoration ecology.

Teaching Interests

Wetland Ecology
Restoration Ecology
Plant Ecology

Research Interests

I address basic and applied questions related to wetland ecology, plant ecology, seed ecology, and restoration.

I address research questions such as:
(1) What limits the restoration of wetland plant communities?
(2) What role do plant species and genetic diversity play in restoring the structure and function of wetlands?
(3) What makes invasive plants successful and how can we best manage them in wetlands?
(4) How do short and long-term drought affect wetland plant communities and their management?

My research sites include brackish wetlands of the Great Salt Lake and Chesapeake Bay, riparian wetlands in the Columbia River Basin and along the Platte River, and prairie pothole wetlands in MN and IA.

Awards

QCNR Teacher of the Year, 2024

QCNR Graduate Mentor of the Year, 2020

QCNR Undergraduate Research Mentor of the Year, 2017


Publications | Abstracts

  • Sweetman, A., Kettenring, K., (2010). Intraspecific variation in the brackish wetland dominant alkali bulrush (Schoenoplectus maritimus). Society of Wetland Scientists *
  • Kettenring, K., McCormick, M.K, Whigham, D.F, (2009). A feedback mechanism for the spread of the invasive plant Phragmites australis – increased local genetic diversity and cross pollination can drive viable seed production. Botanical Society of America annual meeting
  • Downward, R., Endter-Wada, J.L, Kettenring, K., (2009). Keeping wetlands wet: Wetland policies and politics in the Bear River Basin. Ecological Society of America Millennium Conference on water-ecosystem services, drought, and environmental justice
  • Downard, R., Endter-Wada, J.L, Kettenring, K., (2009). Keeping wetlands wet: Wetland policies and politics in the Bear River Basin. Ecological Society of America Millennium Conference on water-ecosystem services, drought, and environmental justice *
  • Kettenring, K., Whigham, D.E, McCormick, M.K, Baron, H.M, Gallagher, S.K, Baldwin, A.H, (2009). Mechanisms of Phragmites invasion in the Chesapeake Bay: Disentangling the importance of land-use, disturbances, nutrients, genetic diversity, and viable seed production. Ecological Society of America annual meeting
  • Wardrop, D.H, Kettenring, K., McCormick, M.K, Easterling, M.M, Peterson-Smith, J., Whigham, D.F, (2009). Writing a new story of Phragmites invasion: Historical land cover analysis and population studies in three Chesapeake Bay subestuaries. Society of Wetland Scientists annual meeting
  • Gallagher, S.M, Kettenring, K., Whigham, D.F, (2008). Effects of small disturbances on the emergence of Phragmites australis in native wetland plant communities. Oconomowoc, WI
  • Baldwin, A.H, Kettenring, K., Whigham, D.F, (2008). Seed banks of brackish Phragmites wetlands. Society of Wetland Scientists annual meeting
  • Gallagher, S.M, Kettenring, K., Whigham, D.E, (2008). The effects of small disturbances on germination and emergence of Phragmites australis in brackish wetlands. Ecological Society of America annual meeting
  • Kettenring, K., McCormick, M.K, Baron, H.M, Baldwin, A.H, Whigham, D.F, (2008). The potential for a seed-driven invasion of Phragmites australis in developed vs. forested watersheds of the Chesapeake Bay. Ecological Society of America annual meeting
  • Baron, H.M, Kettenring, K., McCormick, M.K, Whigham, D.F, (2008). Variation in seed viability, genetic diversity, and foliar nutrients of non-native Phragmites australis in the Rhode River, a subestuary of the Chesapeake Bay. Society of Wetland Scientists annual meeting
  • McCormick, M.K, Kettenring, K., Baron, H.M, Whigham, D.F, (2008). Watershed land-use, viable seed production, and genetic diversity of non-native Phragmites australis in Chesapeake Bay subestuaries. Atlantic Estuarine Research Society annual meeting
  • Kettenring, K., Whigham, D.F, (2007). Seed germination and seedling growth of invasive Phragmites australis from forested and developed watersheds of the Chesapeake Bay. Ecological Society of America annual meeting

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | Fact Sheets

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | Journal Articles

Academic Journal

  • Slocombe, M.P, Ortiz, M.F, Kettenring, K., (2025). Robust native plant propagule banks limit curly-leaved pondweed. Journal of Aquatic Plant Management, 64:1
  • Feldman, E.V, Walsworth, T., Kettenring, K., (2024). Native species identity drives plant community growth and biotic resistance. Applied Vegetation Science, 27:3, doi: 10.1111/avsc.12808
  • Rohal, C., Duncan, B., Follstad Shah, J., Veblen, K.E, Kettenring, K., (2024). Targeted grazing reduces a widespread wetland invader with minimal nutrient impacts, yet native community recovery is limited . Journal of Environmental Management, 362, 121168.
  • Henry, A.L, Robinson, R., Sinnott, K., Tars, E., Brunson, M.W, Kettenring, K., (2024). Lay of the (wet)land: manager practices and challenges in wetland revegetation. Restoration Ecology, 32:5, e14167.
  • Henry, A.L, Robinson, R., Sinnott, K., Brunson, M.W, Ernst, A., Tarsa, E., Kettenring, K., (2024). Got plants? Availability of and challenges to production of native plants for wetland restoration. Restoration Ecology, 32:4, e14120.
  • Hammill, E., Pendleton, M., Brahney, J., Kettenring, K., Atwood, T., (2022). Metal concentrations in wetland plant tissues influences transfer to terrestrial food webs. Ecotoxicology, 31:5, 836-845.
  • Hammill, E., Pendleton, M., Brahney, J., Kettenring, K., Atwood, T., (2022). Metal concentrations in wetland plant tissues influences transfer to terrestrial food webs. Ecotoxicology
  • Leonard, E.E, Mast, A.M, Hawkins, C.P, Kettenring, K., (2021). Arthropod assemblages in invasive and native vegetation of Great Salt Lake wetlands. Wetlands, 41:5, doi: 10.1007/s13157-021-01446-1
  • Sima, S., Rosenberg, D.E, Wurtsbaugh, W.A, Null, S., Kettenring, K., (2021). Managing Lake Urmia, Iran for diverse restoration objectives: Moving beyond a uniform target lake level. Journal of Hydrology: Regional Studies, 35
  • Long, A.L, Kettenring, K., Hawkins, C.P, Neale, C.M, (2017). Distribution and drivers of a widespread, invasive wetland grass, Phragmites australis, in wetlands of the Great Salt Lake, Utah, USA. Wetlands, 37, 45-57.
  • Espeland, E., Emery, N., Mercer, K., Woolbright, S., Kettenring, K., Gepts, P., Etterson, J., (2017). Evolution of plant materials for restoration: Insights from the applied and basic literature. Journal of Applied Ecology, 54, 102-115.
  • Duncan, J.P, Powell, J.A, Rozum, R.N, Kettenring, K., (2017). Multi-scale methods predict invasion speeds in variable landscapes. Case study: Phragmites australis. Theoretical Ecology, 10, 287-303. doi: 10.1007/s12080-017-0329-0
  • Kettenring, K., Mock, K.E, Zaman, B., McKee, M., (2016). Life on the edge: reproductive mode and rate of invasive Phragmites australis patch expansion. Biological Invasions, 18, 2475-2495.
  • Kettenring, K., (2016). Viability, dormancy, germination, and intraspecific variation of Bolboschoenus maritimus (alkali bulrush) seeds. Aquatic Botany, 134, 26-30.
  • Rosenberg, D.E, Alminagorta, O., Kettenring, K., (2016). Systems modeling to improve the hydroecological performance of diked wetlands. Water Resources Research, 52:9, 7070-7085. doi: 10.1002/2015wr018105
  • Laine, C.M, Kettenring, K., Roper, B.B, (2015). An assessment of metrics to measure seasonal variation in and grazing effects on riparian plant communities. Western North American Naturalist, 75:1, 102–114.
  • Kettenring, K., Whigham, D.F, Hazelton, E.L, Gallagher, S.K, Weiner, H.M, (2015). Biotic resistance, disturbance, and mode of colonization impact the invasion of a widespread, introduced wetland grass. Ecological Society of America, 25, 466-480.
  • Menuz, D.R, Kettenring, K., Hawkins, C.P, Cutler, D., (2015). Non-equilibrium in plant distribution models–only an issue for introduced or dispersal limited species?. Ecography, 38:3, 231–240.
  • Hazelton, E.L, McCormick, M.K, Sievers, M., Kettenring, K., Whigham, D.F, (2015). Stand Age is Associated with Clonal Diversity, but Not Vigor, Community Structure, or Insect Herbivory in Chesapeake Bay Phragmites australis. Wetlands, 35:5, 877–888.
  • Menuz, D.R, Kettenring, K., Hawkins, C.P, Cutler, D., (2015). Non‐equilibrium in plant distribution models – only an issue for introduced or dispersal limited species?. Ecography, 38:3, 231-240. doi: 10.1111/ecog.00928
  • Triplett, L.D, Kettenring, K., Tal, M., Smith, C., (2014). Multiple signatures of an invasive species in the geologic record. Anthropocene, 5, 59-64.
  • Downard, R., Endter-Wada, J.L, Kettenring, K., (2014). Adaptive wetland management in an uncertain and changing arid environment. Ecology and Society, 19, 23.
  • Kettenring, K., (2014). Application of genetic diversity-ecosystem function research to ecological restoration. Journal of Applied Ecology, 51, 339-348.
  • Hazelton, E.L, Mozdzer, T.J, Burdick, D., Whigham, D.F, Kettenring, K., (2014). Phragmites australis management in the Unites States: 40 years of methods and outcomes. AoB Plants, 6, plu001.
  • Santos Vanderlinder, M.E, Neale, C.M, Rosenberg, D.E, Kettenring, K., (2014). Use of remote sensing to assess changes in wetland plant communities over an 18-year period – a case study from the Bear River Migratory Bird Refuge, Great Salt Lake, UT. Western North American Naturalist, 74:1, 33-46.
  • Laine, C.M, Kettenring, K., Roper, B.B, (2013). An assessment of permanent and nonpermanent plots in riparian vegetation monitoring. Western North American Naturalist, 73:3, 337-346.
  • Menuz, D.R, Kettenring, K., (2013). The importance of roads, nutrients, and climate for invasive plant establishment in riparian areas in the northwestern United States. Biological Invasions, 15, 1601-1612.
  • Sweetman, A.C, Kettenring, K., Mock, K.E, (2013). The pattern and structure of genetic diversity of Schoenoplectus maritimus: implications for wetland revegetation.. Aquatic Botany, 104, 47-54.
  • Welsh, L., Endter-Wada, J.L, Downard, R., Kettenring, K., (2013). Developing adaptive capacity to droughts: the rationality of locality. Ecology and Society, 18:2, 7.
  • Kettenring, K., Mock, K.E, (2012). Genetic diversity, reproductive mode, and dispersal differ between the cryptic invader, Phragmites australis, and its native conspecific. Biological Invasions, 14, 2489-2504. doi: 10.1007/s10530-012-0246-5
  • Kettenring, K., Reinhardt Adams, C., (2011). Lessons learned from invasive plant control experiments: a systematic review and meta-analysis. Journal of Applied Ecology, 48, 970-979.
  • Kettenring, K., McCormick, M.K, Baron, H.M, Whigham, D.F, (2011). Mechanisms of Phragmites australis invasion in the Chesapeake Bay: feedbacks among genetic diversity, nutrients, and sexual reproduction. Journal of Applied Ecology, 48, 1305-1313. doi: 10.1111/j.1365-2664.2011.02024.x
  • Kettenring, K., Galatowitsch, S.M, (2011). Carex seedling emergence in restored and natural prairie wetlands. Wetlands, 31, 273-281.
  • Kettenring, K., Galatowitsch, S.M, (2011). Seed rain of restored and natural prairie wetlands. Wetlands, 31, 283-294.
  • McCormick, M.K, Kettenring, K., Baron, H.M, Whigham, D.F, (2010). Extent and reproductive mechanisms of Phragmites australis spread in brackish wetlands in Chesapeake Bay, Maryland (USA). Wetlands30, 67-74.
  • Kettenring, K., McCormick, M.K, Baron, H.M, Whigham, D.F, (2010). Phragmites australis (common reed) invasion in the Rhode River subestuary of the Chesapeake Bay: disentangling the effects of foliar nutrients, genetic diversity, patch size, and seed viability. Estuaries and Coasts33, 118-126.
  • Baldwin, A.H, Kettenring, K., Whigham, D.F, (2010). Seed banks of Phragmites australis-dominated brackish wetlands: relationships to seed viability, inundation, and land cover. Aquatic Botany93, 163-169.
  • McCormick, M.K, Kettenring, K., Baron, H.M, Whigham, D.F, (2010). Spread of invasive Phragmites australis in estuaries with differing degrees of development: genetic patterns, Allee effects and interpretation. Journal of Ecology98, 1369-1378.
  • Kettenring, K., Weekley, C.W, Menges, E.S, (2009). Herbivory delays flowering and reduces fecundity of Liatris ohlingerae (S.F. Blake) B.L. Rob., an endangered, endemic plant of the Florida scrub. Journal of the Torrey Botanical Society136, 350-362.
  • Hipp, A.L, Kettenring, K., Feldheim, K.A, Weber, J.A, (2009). Isolation of 11 polymorphic tri- and tetranucleotide microsatellite loci in a North American sedge (Carex scoparia: Cyperaceae) and cross-species amplification in three additional Carex species. Molecular Ecology Resources9, 625-627.
  • Kettenring, K., Whigham, D.F, (2009). Seed viability and seed dormancy of non-native Phragmites australis in suburbanized and forested watersheds of the Chesapeake Bay, USA. Aquatic Botany91, 199-204.
  • Kettenring, K., Galatowitsch, S.M, (2007). Requirements for dormancy break and seed germination vary greatly among 14 species of Carex (sedges) from wetlands in mid-continental U.S.. Aquatic Botany87, 209-220.
  • Kettenring, K., Galatowitsch, S.M, (2007). Tools for Carex revegetation in prairie pothole wetlands: understanding dormancy loss and germination temperature requirements. Plant Ecology193, 157-169.
  • Kettenring, K., Gardner, G., Galatowitsch, S.M, (2006). Effects of light on Carex seed germination. Annals of Botany98, 869-874.
  • Kettenring, K., Martinez, B.T, Starfield, A.M, Getz, W.M, (2006). Good practices for sharing ecological models. BioScience56, 59-64.
  • Young, S., Kettenring, K., Water politics and habitat concerns drive legislative action and management of invasive species. Journal of Environmental Management

Professional Journal

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | MultiMedia

Video

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | Technical Reports

Research Reports

  • Kopp, K., Endter-Wada, J.L, Baker, M.A, Brahney, J., Chikamoto, Y., Kettenring, K., Neilson, B.T, Null, S., Rivers, E., Rosenberg, D.E, Schmidt, J.C, Shilton, R., Tarboton, D.G, Torres-Rua, A., Wang, S., Wheaton, J.M, Wurtsbaugh, W.A, Yost, M., Zhang, W., (2021). Utah State University 2021 Report to the Governor on Utah’s Land, Water, and Air.
  • Kettenring, K., Long, A.L, Cranney, C., Rohal, C.B, Hazelton, E.L, (2013). Assessing approaches to manage Phragmites in the Great Salt Lake watershed. Final report to the Utah Department of Natural Resources, Division of Forestry, Fire & State Lands. *
  • Rupp, L.A, Whitesides, R.E, Kettenring, K., Larese-Casanova, M., Goodspeed, J., (2013). Phragmites australis Control at the Rural-Urban Interface Final Report. *
  • Sweetman, A.C, Kettenring, K., Mock, K.E, (2012). The ecology and genetics of alkali bulrush (Schoenoplectus maritimus): management implications. Final report to Great Salt Lake wetland managers *
  • Kettenring, K., Mock, K.E, (2010). Spread and genetic relatedness of native vs. introduced Phragmites australis in Utah wetlands. Final report prepared for U.S. Fish and Wildlife Service *
  • Kettenring, K., Mock, K.E, (2009). Spread and genetic relatedness of invasive, non-native Phragmites australis in wetlands in northern Utah. Report to the Intermountain West Joint Venture

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | Other

Other

    An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

    Teaching

    WATS 5300 - Principles of Aquatic Ecosystem Restoration, Fall 2025
    WATS, WATS 4310, 6310 - Wetland Ecology and Management, Fall 2025
    WATS 5310 - Ecology and Restoration of Wetland and Riparian Plants, Fall 2024
    CEWA, WATS 6900 - Graduate Special Topics: Construction of Cheap and Cheerful (BDA and PAL) Structures, Fall 2024
    WATS, CEWA 6900 - Graduate Special Topics: Construction of Cheap and Cheerful (BDA and PAL) Structures, Fall 2024
    WATS 5300 - Principles of Aquatic Ecosystem Restoration, Fall 2024
    WATS, WILD 6700 - Restoration Ecology, Fall 2024
    WATS 5310 - Ecology and Restoration of Wetland and Riparian Plants, Fall 2023
    CEWA, WATS 6900 - Graduate Special Topics: Construction of Cheap and Cheerful (BDA and PAL) Structures, Fall 2023
    CEWA, WATS 6900 - Graduate Special Topics: Construction of Cheap and Cheerful (BDA and PAL) Structures, Fall 2023
    WATS 5300 - Principles of Aquatic Ecosystem Restoration, Fall 2023
    WATS 6310 - Wetland Ecology and Management, Fall 2023
    , Fall 2021
    WATS 5300 - Principles of Aquatic Ecosystem Restoration, Fall 2021
    , Spring 2021
    WATS 5310 - Ecology and Restoration of Wetland and Riparian Plants, Spring 2021
    CEWA, WATS 4310, 5700, 6310 - Wetland Ecology and Management, Spring 2021
    WATS 4950 - Special Topics, Fall 2020
    WATS, WILD 6700 - Restoration Ecology, Spring 2020
    WATS 5310 - Ecology and Restoration of Wetland and Riparian Plants, Spring 2019
    HONR 4900 - Honors Thesis/Capstone, Spring 2019
    Wetland Ecology and Management, Spring 2019
    WATS 4310, 6310 - Wetland Ecology and Management, Spring 2019
    HONR 4900 - Honors Thesis/Capstone, Fall 2018
    WATS 5300 - Principles of Aquatic Ecosystem Restoration, Spring 2018
    WATS, WILD 6700 - Restoration Ecology, Spring 2018
    WATS 4950, 6900 - Graduate Special Topics, Spring 2017
    WATS 4950, 6900 - Special Topics, Spring 2017
    WATS, WILD 6700 - Restoration Ecology, Spring 2016
    WATS 4310, 6310 - Wetland Ecology and Management, Spring 2016
    WATS,WILD 6700 - Restoration Ecology, Spring 2014
    WATS 4310,6310 - Wetland Ecology and Management, Spring 2014
    WATS 6700,6900 - Restoration Ecology, Spring 2013
    WATS 4310 - Wetland Ecology and Management, Spring 2013
    WATS 6900 - Graduate Special Topics, Spring 2012
    WATS 6700 - Restoration Ecology, Spring 2012
    WATS 4310,6310 - Wetland Ecology and Management, Spring 2012

    Current Graduate Students

    Montana Horchler - MS Ecology
    Hailey Machnikowski -  MS Ecology
    Loren Taylor - MS Ecology
    Emily Santos - Ph.D. Ecology, co-advised with Dr. Karen Beard

    Graduate Students Mentored

    Courses

    WATS 4310/6310 - Wetland Ecology and Management - offered odd years fall semesters, online only
    WATS / WILD 6700 - Restoration Ecology - offered even years fall semester, 3:00-4:15pm Tuesdays/Thursdays
    WATS 5310 - Ecology and restoration of wetland and riparian plants - every fall, 9:30am - 12:30pm Fridays
    WATS 5300 - Principles of Aquatic Ecosystem Restoration - every fall, 1:30pm - 5:00pm Fridays
    WATS 6311 - Field Botany: Wetland and Riparian Plants - late summer 3 day field course (fall semester)
    WATS 6312 - Wetland Delineation - late summer 2 day field course (fall semester)
     

    Kettenring Wetland Ecology and Restoration Lab