My research interests lie in wetland ecology, invasive species, and plant-microbial interactions. Specifically, I explore new and innovative restoration and invasive species management strategies that use molecular biology, community ecology, and plant-soil interactions as a foundation. My research is focused on adding new tools to complement conventional restoration strategies.
Improving restoration strategies through intervention of microbial symbiosis. Microbes are everywhere. In humans, they are vastly important to health and bodily function. Likewise, bacteria and fungi play hugely important roles in nutrient availability in soils, nutrient acquisition by plants, and plant tolerances to extreme conditions. Management outcomes depend heavily upon the proper links between plants and their microbiomes.
-Microbial interactions could make invasive plants more competitive and aggressive. Therefore, management approaches that target microbial interactions could decrease the expansion and aggressiveness of invasive species. We are working on developing such management tools by testing the impacts of disruption in microbial symbiosis on invasive plant health, nutrient acquisition, and expansion.
-Success of native plant restoration is often predicated upon the proper microbial partners. In addition, invasive species soil microbial legacies could undermine restoration success after removal. Therefore, we are exploring the roles of soil microbes in successful restoration of plants of ecological and cultural importance and developing strategies for improving native species restoration.
Professional Experience
Biologist, 2020-Present, USGS - Great Lakes Science Center, Ann Arbor, MI
Pathways Ecologist, 2014-2020, USGS - Great Lakes Science Center, Ann Arbor, MI
Wetland Research Technician, 2013-2014, USGS - Great Lakes Science Center, Ann Arbor, MI
NOAA Coastal Management Fellow, 2011-2012, New Jersey Office of Coastal Management, Trenton, NJ
Education and Certifications
Ph.D. Ecology and Evolutionary Biology, University of Michigan 2020
M.S. Wetland Science, University of Maryland 2011
B.S. Environmental Science (Ecosystem Science), Indiana University 2007
Science and Products
Science pages by this scientist
Innovative Approaches for Wetland Restoration and Invasive Species Management
Effects of Great Lakes water levels on coastal populations of Phragmites australis GeoNarrative
Invasive Phragmites Science: Management Tools for the Control of Invasive Phragmites to Foster the Restoration of the Great Lakes
Data releases by this scientist
2021 USGS Phragmites australis Greenhouse Submergence Experiment Data conducted in Ann Arbor, MI
Soil microbes surrounding native and non-native Phragmites australis in the Great Lakes and East Coast of the United States (2015-2017 survey)
The effects of North American fungi and bacteria on Phragmites australis leaves 2017-2019, with comparisons to the global Phragmites microbiome
Publications by this scientist
Phragmites management in high water: Cutting plants under water limits biomass production, carbohydrate storage, and rhizome viability
Differences in rhizosphere microbial communities between native and non‐native Phragmites australis may depend on stand density
Growth and behavior of North American microbes on Phragmites australis leaves
Intraspecific and biogeographical variation in foliar fungal communities and pathogen damage of native and invasive Phragmites australis
Root endophytes and invasiveness: no difference between native and non‐native Phragmites in the Great Lakes Region
Fungal endophytes from seeds of invasive, non-native Phragmites australis and their potential role in germination and seedling growth
Diversity of fungal endophytes in non-native Phragmites australis in the Great Lakes
Advancing the science of microbial symbiosis to support invasive species management: a case study on Phragmites in the Great Lakes
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Software by this scientist
Data analysis and figures for Differences in Rhizosphere Microbial Communities Between Native and Non-Native Phragmites australis May Depend on Stand Density
News about this scientist
Science and Products
- Science
Science pages by this scientist
Innovative Approaches for Wetland Restoration and Invasive Species Management
Coastal and wetland ecosystems provide critical habitat to birds, fish, wildlife, and a suite of other organisms, clean our water and mitigate flooding events, and offer tremendous recreational opportunities to visitors. However, the majority of coastal and wetland ecosystems in the Great Lakes basin have been significantly degraded or destroyed by ditching, draining, development, invasive species...Effects of Great Lakes water levels on coastal populations of Phragmites australis GeoNarrative
The "Phragmites Management and Variable Great Lakes Water Levels" GeoNarrative presents research by the US Geological Survey and US Fish and Wildlife Service on how Great Lakes water levels affect expansion and management of coastal Phragmites populations.Invasive Phragmites Science: Management Tools for the Control of Invasive Phragmites to Foster the Restoration of the Great Lakes
The USGS is developing innovative Phragmites control measures to keep this rapidly spreading invasive plant from further expanding its range into new wetland habitats and to aid in the development of successful restoration strategies. Scientists are conducting studies and field tests to determine (1) if microbes (i.e., fungi and bacteria) that live within and around Phragmites are enabling the... - Data
Data releases by this scientist
2021 USGS Phragmites australis Greenhouse Submergence Experiment Data conducted in Ann Arbor, MI
To determine the potential for controlling non-native Phragmites australis through use of a cut-to-drown management strategy we performed a controlled greenhouse mesocosm experiment in Ann Arbor, MI during summer 2021. Field collected Phragmites rhizomes from one site within Michigan were propagated, cuttings taken of individual stems and potted in nursery pots. Established plants were then subjecSoil microbes surrounding native and non-native Phragmites australis in the Great Lakes and East Coast of the United States (2015-2017 survey)
To determine the differences in soil microbial community composition between native and non-native lineages of Phragmites, we sampled soils from eight sites in the Great Lakes basin where populations of native and non-native Phragmites co-occurred. In addition, we included samples of soils from 27 populations of Phragmites across the Gulf of Mexico and Atlantic Coasts of the US. Samples were colleThe effects of North American fungi and bacteria on Phragmites australis leaves 2017-2019, with comparisons to the global Phragmites microbiome
The data document the results of several microbe bioassays performed by the USGS on Phragmites australis plants, including those performed on mature leaves, seedlings, and dead leaf tissues exploration of the literature to find accounts of microbes associated with Phragmites worldwide. For the bioassays, we prepared 162 pure cultures isolated from Phragmites plants in North America along the east - Multimedia
- Publications
Publications by this scientist
Phragmites management in high water: Cutting plants under water limits biomass production, carbohydrate storage, and rhizome viability
Invasion of Phragmites australis (common reed) in wetlands throughout North America, and particularly the Laurentian Great Lakes Basin, poses significant ecological problems. The extended period of low Great Lakes water levels from 2000 to 2013 created conditions for large expansions of Phragmites in the Great Lakes coastal zone. The following extended period of high water in the Great Lakes durinAuthorsSpenser L. Widin, Wesley A. Bickford, Kurt P. KowalskiDifferences in rhizosphere microbial communities between native and non‐native Phragmites australis may depend on stand density
Microorganisms surrounding plant roots may benefit invasive species through enhanced mutualism or decreased antagonism, when compared to surrounding native species. We surveyed the rhizosphere soil microbiome of a prominent invasive plant, Phragmites australis, and its co‐occurring native subspecies for evidence of microbial drivers of invasiveness. If the rhizosphere microbial community is importAuthorsWesley A. Bickford, Donald R. Zak, Kurt P. Kowalski, Deborah E. GoldbergGrowth and behavior of North American microbes on Phragmites australis leaves
Phragmites australis subsp. australis is a cosmopolitan wetland grass that is invasive in many regions of the world, including North America, where it co-occurs with the closely related Phragmites australis subsp. americanus. Because the difference in invasive behavior is unlikely to be related to physiological differences, we hypothesize that interactions with unique members of their microbiomesAuthorsAaron E. Devries, Kurt P. Kowalski, Wesley A. BickfordIntraspecific and biogeographical variation in foliar fungal communities and pathogen damage of native and invasive Phragmites australis
AimRecent research has highlighted that the relationship between species interactions and latitude can differ between native and invasive plant taxa, generating biogeographical heterogeneity in community resistance to plant invasions. In the first study with foliar pathogens, we tested whether co‐occurring native and invasive lineages of common reed (Phragmites australis ) exhibit non‐parallel latAuthorsWarwick J. Allen, Aaron Devries, Nicholas J. Bologna, Wesley A. Bickford, Kurt P. Kowalski, Laura A. Meyerson, James T. CroninRoot endophytes and invasiveness: no difference between native and non‐native Phragmites in the Great Lakes Region
Microbial interactions could play an important role in plant invasions. If invasive plants associate with relatively more mutualists or fewer pathogens than their native counterparts, then microbial communities could foster plant invasiveness. Studies examining the effects of microbes on invasive plants commonly focus on a single microbial group (e.g., bacteria) or measure only plant response to mAuthorsWesley A. Bickford, Deborah E. Goldberg, Kurt P. Kowalski, Donald R. ZakFungal endophytes from seeds of invasive, non-native Phragmites australis and their potential role in germination and seedling growth
Background and aimsWe characterized fungal endophytes of seeds of invasive, non-native Phragmites from three sites in the Great Lakes region to determine if fungal symbiosis could contribute to invasiveness through their effects on seed germination and seedling growth.MethodsField-collected seeds were surface sterilized and plated on agar to culture endophytes for ITS sequencing. Prevalence of speAuthorsZackery R. C. Shearin, Matthew Filipek, Rushvi Desai, Wesley A. Bickford, Kurt P. Kowalski, Keith ClayDiversity of fungal endophytes in non-native Phragmites australis in the Great Lakes
Plant–microbial interactions may play a key role in plant invasions. One common microbial interaction takes place between plants and fungal endophytes when fungi asymptomatically colonize host plant tissues. The objectives of this study were to isolate and sequence fungal endophytes colonizing non-native Phragmites australis in the Great Lakes region to evaluate variation in endophyte community coAuthorsKeith Clay, Zachery Shearin, Kimberly Bourke, Wesley A. Bickford, Kurt P. KowalskiAdvancing the science of microbial symbiosis to support invasive species management: a case study on Phragmites in the Great Lakes
A growing body of literature supports microbial symbiosis as a foundational principle for the competitive success of invasive plant species. Further exploration of the relationships between invasive species and their associated microbiomes, as well as the interactions with the microbiomes of native species, can lead to key new insights into invasive success and potentially new and effective controAuthorsKurt P. Kowalski, Charles W. Bacon, Wesley A. Bickford, Heather A. Braun, Keith Clay, Michele Leduc-Lapierre, Elizabeth Lillard, Melissa K. McCormick, Eric Nelson, Monica Torres, James W. C. White, Douglas A. WilcoxNon-USGS Publications**
Bickford, W.A., B.A. Needelman, M.W. Miller, E. Hutchins. 2015. Prescribed fire increases soil temperatures through canopy removal in a Mid-Atlantic brackish marsh. Journal of Coastal Research 31(4): 941 – 945.Bickford, W.A., A.H. Baldwin, BA. Needelman, R.R. Weil. 2012. Canopy disturbance alters competitive outcomes in two brackish marsh plant species. Aquatic Botany 103: 23-29.Bickford, W.A., Needelman, B.A., Weil, R.R., Baldwin, A.H. 2012. Vegetation response to prescribed fire in Mid-Atlantic brackish marshes. Estuaries and Coasts 35:1432-1442.Bickford, W.A. 2011. Plant productivity and competitive response to prescribed fire in Mid-Atlantic brackish marshes. M.S. Thesis. University of Maryland.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
- Software
Software by this scientist
Data analysis and figures for Differences in Rhizosphere Microbial Communities Between Native and Non-Native Phragmites australis May Depend on Stand Density
This repository holds the code to reproduce the data analyses and figures found in "Differences in Rhizosphere Microbial Communities Between Native and Non-Native Phragmites australis May Depend on Stand Density" published in Ecology and Evolution written by Wesley A. Bickford, Donald R. Zak, Kurt P. Kowalski, and Deborah E. Goldberg. - News
News about this scientist