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    • Rangeland Ecology & Management, Volume 58, Number 5 (September 2005)
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    Timing of Vegetation Sampling at Greater Sage-Grouse Nests

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    Author
    Hausleitner, Doris
    Reese, Kerry P.
    Apa, Anthony D.
    Issue Date
    2005-09-01
    Keywords
    Centrocercus urophasianus
    Colorado
    nest site selection
    nest initiation
    
    Metadata
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    Citation
    Hausleitner, D., Reese, K. P., & Apa, A. D. (2005). Timing of vegetation sampling at greater sage-grouse nests. Rangeland Ecology & Management, 58(5), 553-556.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/643376
    DOI
    10.2111/04-170R2.1
    Additional Links
    https://rangelands.org/
    Abstract
    Habitat management guidelines for greater sage-grouse, Centrocercus urophasianus, have been formulated, in part, based on studies of nest site selection. However, these guidelines may not represent conditions when the female initiates nesting because sampling occurs posthatch (> 30 days after nest initiation) to avoid disturbing incubating females. In 2002, we investigated differences in 22 habitat variables at initiation and hatch. Sampling was at 30 randomly selected active nests marked in 2001. There was no significant difference in structural or cover data (P > 0.05). Grass height and percent grass cover differed (P < 0.05) based on timing of sampling. Grass heights at the nest bowl and at 1 m from the edge of the nest bowl were 10 and 9 cm at initiation and 16 and 13 cm at hatch, respectively. Percent grass cover increased from 4% to 6% cover from initiation to hatch. Sampling occurred in a dry year; differences in grass heights and percent cover may be more pronounced in years of normal precipitation. Preliminary results indicated current habitat sampling techniques conducted posthatching adequately described selection of structural components of shrub height, visual obstruction, and percent cover of shrubs, bare ground, litter, and forbs at the nest site at initiation. Data need to be verified for other study areas and under different climatic conditions.  
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/04-170R2.1
    Scopus Count
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    Rangeland Ecology & Management, Volume 58, Number 5 (September 2005)

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