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    • Journal of Range Management, Volume 26 (1973)
    • Journal of Range Management, Volume 25, Number 6 (November 1973)
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    Downy Brome-Intruder in the Plant Succession of Big Sagebrush Communities in the Great Basin

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    Author
    Young, J. A.
    Evans, R. A.
    Issue Date
    1973-11-01
    Keywords
    site quality
    Hand Cutting
    plant litter
    Seedbed Characteristics
    Churchill Canyon Watershed
    Seed Reserves
    Seedbed Quality
    downy brome
    Overstory
    shrub
    clearing
    plant succession
    establishment
    Great Basin
    seeding
    big sagebrush
    Bromus tectorum
    forbs
    cover
    Artemisia tridentata
    Nevada
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    Citation
    Young, J. A., & Evans, R. A. (1973). Downy brome-intruder in the plant succession of big sagebrush communities in the Great Basin. Journal of Range Management, 26(6), 410-415.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/647251
    DOI
    10.2307/3896974
    Additional Links
    https://rangelands.org/
    Abstract
    We investigated succession on six big sagebrush sites of different potential ranging from the edge of the salt desert shrub to seral communities in the pinon/juniper woodland where the brush overstory had been removed by hand cutting. Depending upon the site, herbaceous communities that developed after elimination of overstory cover were composed of either a diversity or a relatively limited number of species of native annual forbs. Alien annual forbs were initial dominants on sites where seed source of these species was available. Dominance by downy brome caused a marked reduction of native annual species. Downy brome was seeded for 3 consecutive years in each of six different big sagebrush communities. On the majority of the sites, providing a seed source resulted in establishment and near total dominance by downy brome. The established populations have persisted and continued to dominate the communities. Some sites were outside the seedbed potential of downy brome, and seeding resulted in establishment only once in 3 years. Presence of plant litter and a rough microtopography were key seedbed characteristics permitting downy brome establishment on these sites.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3896974
    Scopus Count
    Collections
    Journal of Range Management, Volume 25, Number 6 (November 1973)

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