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    Author(s): Christian O. Marks
    Date: 2017
    Source: In: Pinchot, Cornelia C.; Knight, Kathleen S.; Haugen, Linda M.; Flower, Charles E.; Slavicek, James M., eds. Proceedings of the American elm restoration workshop 2016; 2016 October 25-27; Lewis Center, OH. Gen. Tech. Rep. NRS-P-174. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 74-98.
    Publication Series: Paper (invited, offered, keynote)
    Station: Northern Research Station
    PDF: View PDF  (1.0 MB)

    Description

    Before Dutch elm disease, the American elm (Ulmus americana L.) was a leading dominant tree species in the better drained parts of floodplain forests where flooding occurs about 1 percent of the time. Although still common in these habitats today, U. americana now rarely lives long enough to reach the forest canopy because elm mortality rates increase sharply with tree size. This article reviews the impact that the loss of American elm due to Dutch elm disease on floodplain forests, helps provide a clear rationale for restoring this iconic species in the wild, and also provides quantitative benchmarks against which to measure progress. Fraxinus L. species are ecologically the most similar species to U. americana, but Fraxinus trees are now also threatened because of the spread of the invasive emerald ash borer. This new threat to floodplain forests of northeastern North America adds urgency to the need to develop more disease tolerant selections of U. americana and plant them into floodplain habitats.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Marks, Christian O. 2017. The ecological role of American elm (Ulmus americana L.) in floodplain forests of northeastern North America. In: Pinchot, Cornelia C.; Knight, Kathleen S.; Haugen, Linda M.; Flower, Charles E.; Slavicek, James M., eds. Proceedings of the American elm restoration workshop 2016; 2016 October 25-27; Lewis Center, OH. Gen. Tech. Rep. NRS-P-174. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 74-98.

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