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    • Journal of Range Management, Volume 51 (1998)
    • Journal of Range Management, Volume 51, Number 3 (May 1998)
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    Bison grazing patterns on seasonally burned tallgrass prairie

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    Author
    Coppedge, B. R.
    Shaw, J. H.
    Issue Date
    1998-05-01
    Keywords
    area
    bulls
    bison
    gender differences
    selective grazing
    prescribed burning
    Oklahoma
    prairies
    biomass
    seasonal variation
    botanical composition
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    Citation
    Coppedge, B. R., & Shaw, J. H. (1998). Bison grazing patterns on seasonally burned tallgrass prairie. Journal of Range Management, 51(3), 258-264.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644056
    DOI
    10.2307/4003408
    Additional Links
    https://rangelands.org/
    Abstract
    Patterns of bison (Bison bison L.) grazing were examined in a 2-year study on a tallgrass prairie site in Oklahoma subjected to a seasonally and spatially variable burning regime. Mixed groups of bison, composed of cows, yearlings, calves, and young (< 5 years of age) bulls, comprised 90% of the study population and showed selectivity by using burned areas significantly more than expected 23% of the time. Mixed groups avoided unburned areas 63% of the time. In contrast, bull groups of mature bulls > 5 years of age selected unburned areas for grazing 29% of the time and burned areas only 4% of the time. Temporal patterns in bison grazing were evident; selective use of burns persisted for only a short period during the first post-fire growing season, after which burns were grazed in proportion to availability and then selectively avoided as bison shifted grazing efforts to newer burns. Regression analysis verified that bison grazing was negatively related to burn age. Regression also showed that grazing patterns were positively related to burn patch size. Although burn types varied significantly in biomass and overall vegetative composition, bison exhibited only limited preference for any burn type, choosing those with higher relative cover of annual Bromus spp. and sedges. It appears that bison select recently burned areas with relatively low graminoid biomass for grazing, presumably choosing these areas based on forage quality rather than quantity.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003408
    Scopus Count
    Collections
    Journal of Range Management, Volume 51, Number 3 (May 1998)

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