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    • Rangeland Ecology & Management, Volume 60 (2007)
    • Rangeland Ecology & Management, Volume 60, Number 5 (September 2007)
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    Influence of Fire on Black-Tailed Prairie Dog Colony Expansion in Shortgrass Steppe

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    Author
    Augustine, David J.
    Cully, Jack F.
    Johnson, Tammi L.
    Issue Date
    2007-09-01
    Keywords
    Cynomys ludovicianus
    grassland disturbance
    prescribed burning
    semiarid rangelands
    wildfire
    
    Metadata
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    Citation
    Augustine, D. J., Cully, J. F., & Johnson, T. L. (2007). Influence of fire on black-tailed prairie dog colony expansion in shortgrass steppe. Rangeland Ecology & Management, 60(5), 538-542.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/643190
    DOI
    10.2111/1551-5028(2007)60[538:IOFOBP]2.0.CO;2
    Additional Links
    https://rangelands.org/
    Abstract
    Factors influencing the distribution and abundance of black-tailed prairie dog (Cynomys ludovicianus) colonies are of interest to rangeland managers because of the significant influence prairie dogs can exert on both livestock and biodiversity. We examined the influence of 4 prescribed burns and one wildfire on the rate and direction of prairie dog colony expansion in shortgrass steppe of southeastern Colorado. Our study was conducted during 2 years with below-average precipitation, when prairie dog colonies were expanding throughout the study area. Under these dry conditions, the rate of black-tailed prairie dog colony expansion into burned grassland (X ̄ 5 2.6 ha 100-m perimeter-1 y-1; range = 0.8-5.9 ha 100-m perimeter-1 y-1; N = 5 colonies) was marginally greater than the expansion rate into unburned grassland (X ̄ 5 1.3 ha 100-m perimeter-1 y-1; range = 0.2-4.9 ha 100-m perimeter-1 y-1; N = 23 colonies; P = 0.066). For 3 colonies that were burned on only a portion of their perimeter, we documented consistently high rates of expansion into the adjacent burned grassland (38%-42% of available burned habitat colonized) but variable expansion rates into the adjacent unburned grassland (2%-39% of available unburned habitat colonized). While our results provide evidence that burning can increase colony expansion rate even under conditions of low vegetative structure, this effect was minor at the scale of the overall colony complex because some unburned colonies were also able to expand at high rates. This result highlights the need to evaluate effects of fire on colony expansion during above- average rainfall years, when expansion into unburned grassland may be considerably lower. 
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/1551-5028(2007)60[538:IOFOBP]2.0.CO;2
    Scopus Count
    Collections
    Rangeland Ecology & Management, Volume 60, Number 5 (September 2007)

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