Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Terri B. Teaschner; Timothy E. Fulbright
    Date: 2007
    Source: In: Sosebee, Ronald E.; Wester, David B.; Britton, Carlton M.; McArthur, E. Durant; Kitchen, Stanley G., comps. Proceedings: Shrubland dynamics -- fire and water; 2004 August 10-12; Lubbock, TX. Proceedings RMRS-P-47. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 107-111.
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (380 B)

    Description

    The objective of this experiment was to test the hypotheses that 1) simulated herbivory stimulates increased biomass production in spiny hackberry (Celtis pallida), but decreases biomass production in blackbrush acacia (Acacia rigidula) compared to unbrowsed plants and 2) thorn density and length increase in blackbrush acacia to a greater extent than in spiny hackberry in response to tissue removal. Blackbrush acacia shrubs defoliated repeatedly at the 75 percent level produced about 66 percent more biomass than control shrubs, while shrubs receiving 100 percent repeat defoliation treatments produced double the biomass as control shrubs (p < 0.05), suggesting overcompensation. Spiny hackberry repeat defoliated shrub biomass production was double control shrub production at 25 percent treatment levels and 81 percent higher in repeat defoliated shrubs at 50 percent defoliation levels relative to control shrubs (p < 0.05). Biomass production during the third and fourth defoliation events was 90 percent lower than (p < 0.05) biomass removed in the initial defoliation. New twig and thorn production occurred only in 2003, but only in blackbrush acacia. These results suggest that spiny hackberry, a highly palatable shrub, is negatively impacted at high defoliation intensity, while the less palatable shrub, blackbrush acacia, responds to intense defoliation with increased biomass production.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Teaschner, Terri B.; Fulbright, Timothy E. 2007. Shrub biomass production following simulated herbivory: A test of the compensatory growth hypothesis. In: Sosebee, Ronald E.; Wester, David B.; Britton, Carlton M.; McArthur, E. Durant; Kitchen, Stanley G., comps. Proceedings: Shrubland dynamics -- fire and water; 2004 August 10-12; Lubbock, TX. Proceedings RMRS-P-47. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 107-111.

    Keywords

    wildland shrubs, fire, water, shrub biomass production, simulated herbivory, spiny hackberry, Celtis pallida, blackbrush acacia, Acacia rigidula

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/28367