Anna Sher

  • Books by Dr. Sher

    • Tamarix book
      Tamarix book

      Dr. Sher and colleague Dr. Martin Quigley have edited the first ever volume devoted to the ecology of the genus Tamarix: A Case Study of Ecological Change in the American West.  It is available on Amazon and directly from Oxford University Press

    • Cover

      Best Management Practices (BMP) for Revegetation after Tamarisk Removal

    • Revegetation after Tamarisk Removal in the Upper Colorado River Basin Best Practices Manual.  A publication of DU, Denver Botanic Gardens, and the Department of the Interior.

    • Proceedings of the Applied Plant Conservation Training Program: Establishing Conservation Programs.  This is a publication of Denver Botanic Gardens and the United States Botanic Garden.

  • Research

    • <!--StartFragment-->

      Restoration of Watersheds invaded by Tamarix spp.

      The primary concentration of my research is the ecology of restoration of riparian (river bank) habitats degraded by invasive plants.  Invasive species are those that spread beyond their native range and damage ecosystems.  These projects have primarily considered restoration associated with Tamarix spp. (tamarisk, saltcedar), a woody, Eurasian tree that invades watersheds, profoundly affecting biological communities and ecosystem processes (i.e., fire, flooding, and soil chemistry fluxes).  With funding from the Bureau of Reclamation, we have been studying the effect of Tamarix on soil chemistry at test sties along the Middle Rio Grande (Cederborg & Sher, in prep.).  A partnership with the Colorado Department of Agriculture and Colorado State University resulted in funding from the US Environmental Protection Agency (EPA) to conduct large-scale field tests of how controlling invasive species influences plant communities (Gieck & Sher et al. 2008). We are also now including animal studies, such as an investigation of the trophic cascades caused by the recent introduction of a biological control for Tamarix (Strudley & Sher, in prep).  Together, this research will facilitate our ability to repair the riparian ecosystems of the West.


      I am one of just a handful of experts on the ecology of Tamarix, most known for my work on competition with native trees (Sher et al 2000, Sher et al 2002, Sher & Marshall 2003).  Tamarix is arguably the most economically and environmentally problematic invasive species in the western U.S., as evidenced by passage of the federal Saltcedar and Russian Olive Control Demonstration Act in 2006.  National attention has increased efforts in riparian restoration, and my lab is at the forefront of providing scientific guidance for these activities. 

    • Sher Lab Research

      Follow this link to the Sher Lab website, with links to theses, lists of students and their projects, and photos.

    • tamarisk flowers
      tamarisk flowers HAVE EXPERIENCE MANAGING TAMARISK/SALTCEDAR? We would love to hear from you. E-mail ( to set up an interview or for more information.
  • Gallery

    • Dr. Sher in tamarisk stand
      Dr. Sher in tamarisk stand
    • Robin and Stephanie in the Rockies
      Robin and Stephanie in the Rockies Robin Bay and Stephanie Gieck were two graduate students working in the Sher Lab from 04-06. Both are now working in the field as consultants.
    • Dr. Sher in the field
      Dr. Sher in the field I am at a field site near Canon City, CO where we are doing research on integrated pest management of invasive tamarisk. Graduate student Stephanie Geick will investigate whether combinations of biological control (a beetle that eats tamarisk) with bulldozing or herbicide are effective means for repairing the riparian (river) ecosystem.
This portfolio last updated: Nov 8, 2013 10:36:04 AM