Full TGIF Record # 115325
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Web URL(s):http://www.jstor.org/stable/3061016?seq=1#page_scan_tab_contents
    Last checked: 11/16/2015
    Access conditions: Item is within a limited-access website
Author(s):Safford, Hugh D.; Harrison, Susan P.
Author Affiliation:Department of Environmental Science and Policy, University of California, Davis, California
Title:Grazing and substrate interact to affect native vs. exotic diversity in roadside grasslands
Source:Ecological Applications: A publication of the Ecological Society of America. Vol. 11, No. 4, August 2001, p. 1112-1122.
Publishing Information:Washington, DC: Ecological Society of America
# of Pages:11
Keywords:TIC Keywords: Grazing; Grasslands; Roadside turf; Biodiversity; Native grasses; Soil types; Biomass
Abstract/Contents:"We compared the native and exotic species composition of ungrazed roadside verges with that of adjacent grazed interiors in the grasslands of California's inner northern coast range (Napa and Lake Counties). We sampled 72 pairs of verge and interior quadrats at five sites representative of the region's grasslands, on both fertile (loam) and infertile (serpentine) soils, avoiding all obvious forms of roadside physical disturbance. We found that, on serpentine soils, ungrazed verges had a higher proportion of exotic species than grazed interiors; on nonserpentine soils, the reverse was true. Within serpentine soils, native species were more prevalent in quadrats with lower biomass; within nonserpentine, natives were more prevalent in quadrats receiving less radiation. Overall, the total species diversity was higher in grazed interiors than on ungrazed verges, regardless of the fertility of the substrate. Our results indicate that the ecological role of roadside verges depends on the interactive effects of community composition and history, environmental gradients, and land use practices that characterize a region."
Language:English
References:53
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Safford, H. D., and S. P. Harrison. 2001. Grazing and substrate interact to affect native vs. exotic diversity in roadside grasslands. Ecol. Appl. 11(4):p. 1112-1122.
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http://www.jstor.org/stable/3061016?seq=1#page_scan_tab_contents
    Last checked: 11/16/2015
    Access conditions: Item is within a limited-access website
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