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    A population study and management suggestions for the Denslow's Sparrow (Ammodramus henslowii) at Fort, Drum, NY

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    Author
    Kirk, Ariel D.
    Keyword
    Henslow's Sparrow
    HESP
    Fort Drum
    Obligate Grassland Breeding Birds
    Grassland Management
    Date Published
    2014-08-20
    
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    URI
    http://hdl.handle.net/20.500.12648/6356
    Abstract
    The Henslow' s Sparrow (Ammodramus henslowii) is one of the most threatened grassland bird species in North America. It is listed as endangered, threatened, or a species of concern in 30 of 32 states and one Canadian province in its historic range. This obligate grassland breeding bird species is now clustered in smaller areas within New York State, and with fewer numbers than before. The largest concentrations currently occur in Jefferson County, NY, within the St. Lawrence Plain ecozone, particularly at the Ft. Drum military installation. The declining populations in the Northeast are likely due to breeding and wintering habitat loss, primarily resulting from changing agricultural practices and land use over time. Henslow' s Sparrow breeding behaviors and narrow habitat preferences make it a challenging species to manage for without hindering habitat for other grassland breeding birds. Specific management suggestions for Fort Drum are recommended, including seasonal timing, mowing instructions on height and needed area, and a 3-4 year rotational mowing scheme. The challenges of developing an environmental management plan for an active military training installation, including interdepartmental cooperation and flexibility within a multi-use land area, are also discussed.
    Description
    This thesis will be embargoed until 8/20/2015. If you have questions regarding this research, please contact the adviser: Dr. Christopher Norment, at cnorment@brockport.edu.
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    Brockport Environmental Science and Ecology Theses

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