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Review of ecosystem level impacts of emerald ash borer on black ash wetlands: What does the future hold?Author(s): Randall K. Kolka; Anthony W. D'Amato; Joseph W. Wagenbrenner; Robert A. Slesak; Thomas G. Pypker; Melissa B. Youngquist; Alexis R. Grinde; Brian J. Palik
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionThe emerald ash borer (EAB) is rapidly spreading throughout eastern North America and devastating ecosystems where ash is a component tree. This rapid and sustained loss of ash trees has already resulted in ecological impacts on both terrestrial and aquatic ecosystems and is projected to be even more severe as EAB invades black ash-dominated wetlands of the western Great Lakes region. Using two companion studies that are simulating short- and long-term EAB infestations and what is known from the literature, we synthesize our current limited understanding and predict anticipated future impacts of EAB on black ash wetlands. A key response to the die-back of mature black ash will be higher water tables and the potential for flooding and resulting changes to both the vegetation and animal communities. Although seedling planting studies have shown some possible replacement species, little is known about how the removal of black ash from the canopy will affect non-ash species growth and regeneration. Because black ash litter is relatively high in nitrogen, it is expected that there will be important changes in nutrient and carbon cycling and subsequent rates of productivity and decomposition. Changes in hydrology and nutrient and carbon cycling will have cascading effects on the biological community which have been scarcely studied. Research to address these important gaps is currently underway and should lead to alternatives to mitigate the effects of EAB on black ash wetland forests and develop management options pre- and post-EAB invasion.
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CitationKolka, Randall K.; D'Amato, Anthony W.; Wagenbrenner, Joseph W.; Slesak, Robert A.; Pypker, Thomas G.; Youngquist, Melissa B.; Grinde, Alexis R.; Palik, Brian J. 2018. Review of ecosystem level impacts of emerald ash borer on black ash wetlands: What does the future hold? Forests. 9(4): 179. 15 p. https://doi.org/10.3390/f9040179.
Keywordsreview, hydrology, carbon, nutrients, wildlife, soil
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