[UNKNOWN: PRESTIME] MARSETT, ROBERT^*,1, QI, JIAGUO², BIEDENBENDER, SHARON¹, HEILMAN, PHIL¹, WALLACE, OSMAN², WANG, CUIZHEN², ¹ USDA ARS Southwest Watershed Research Center, Tucson, AZ² Michigan State University, East Lansing, MI. Geospatial range management tools.

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[UNKNOWN: PRESTIME] Sundt, Peter^*,1, ¹ Rangeland ecology consultant, Pima, Arizona. Statistical power of rangeland monitoring data--beware of bogus numbers.

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[UNKNOWN: PRESTIME] CROSTHWAITE, KATE¹, WALLACE, LINDA^*,2, ¹ Bureau of Land Management, Rawlins, WY² University of Oklahoma, Norman, OK. Bison grazing response to landscape heterogeneity generated by fire.

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[UNKNOWN: PRESTIME] Matchett, John^*,1, Brooks, Matthew¹, ¹ US Geological Survey, Western Ecological Research Center, Las Vegas Field Station, Las Vegas, NV. Plant community structure associated with livestock watering sites in the central Mojave Desert.

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[UNKNOWN: PRESTIME] Traut, Bibit^*,1, ¹ University of California, Davis, Davis, CA. The effects of grazing by Tule elk and cattle on the vegetation dynamics and spider community of coastal salt marshes.

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[UNKNOWN: PRESTIME] . Break.

[UNKNOWN: PRESTIME] Kigel, Jaime^*,1, Osem, Yagil¹, Perevolotski, Avi², ¹ Faculty of Agriculture, Rehovot, Israel² Faculty of Agriculture, Rehovot, Israel. Species diversity in annual plant communities: small-scale interactions between productivity, grazing and plant size.

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[UNKNOWN: PRESTIME] Hayes, Grey^*,1, Holl, Karen¹, ¹ University of California, Santa Cruz, CA. Cattle grazing impacts on California coastal prairie and associated wildflowers over a broad geographic range.

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[UNKNOWN: PRESTIME] Manier, Daniel^*,1, Hobbs, N. Thompson^1,2, Theobald, David¹, ¹ Natural Resource Ecology Lab, Fort Collins, Colorado² Colorado Division of Wildlife, Denver, Colorado. Fifty years of succession in semi-arid shrub communities: the effects of grazing and ungulate exclusion.

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[UNKNOWN: PRESTIME] Valone, Thomas^*,1, Meyer, Marc², Brown, James³, Chew, Robert⁴, ¹ Saint Louis University, St Louis, MO² University of California, Davis, CA³ University of New Mexico, Albuquerque, NM⁴ PO Box 16306, Portal, AZ. Timescale of perennial grass recovery in desertified arid grasslands following livestock removal.

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[UNKNOWN: PRESTIME] ANDERSON, SEAN¹, SCHINSKE, JEFF^*,1, KLUSE, JENNIE¹, ¹ Center for Conservation Biology, Stanford, California. The relative importance of grazing and topography on oak performance since 1928.

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