Santa Clara University

Department of Environmental Studies and Sciences

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Environmental Studies and Sciences News & Events

  •  Justin Covino receives SFS Distinguished Student Research Award

    Tuesday, Mar. 6, 2012

    The School for Field Studies (SFS) announced that Justin Covino (Junior, Environmental Science major) has been selected to receive an SFS Distinguished Student Research Award for Fall 2011. At the SFS Costa Rica field station, Justin assessed the effect of surrounding forests on the tree diversity of shade-grown coffee farms. The Distinguished Student Research Award recognizes Justin's excellence and diligence in research, as well as his teamwork and leadership during the semester. As you can see from this photo, he is also a sharp dresser who carries a machete. Congratulations, Justin, from the entire faculty of Environmental Studies and Sciences!

  •  SCU research shows how to control rangeland pest

    Monday, Mar. 5, 2012

    Invasive yellow starthistle (Centaurea solstitialis) is one of California’s most pernicious invasive species, causing millions of dollars in damages annually to ranchers. The thistle is unpalatable to cattle and toxic to horses, so its spread is a serious threat to grazing land in the state. Most ranchers use herbicides to control the plant, but this strategy raises the possibility of herbicide resistance in starthistle populations.

    New research from Dr. Virginia Matzek of Santa Clara’s Department of Environmental Studies and Sciences shows that mowing the plant in its flowering stage controls yellow starthistle and wipes out its soil seedbank, with no negative effects on annual or perennial forage species. Starthistle biomass was reduced 91-95% over three years in various mowing treatments, while the size of seedbank (which regenerates starthistle from year to year) was reduced by as much as 100% by mowing. The research, recently published in Rangeland Ecology and Management, recommends that ranchers and rangeland managers consider late-season mowing as an alternative to herbicides for yellow starthistle control.

    Link to article