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Impacts of white-tailed deer on red trillium (<i>Trillium recurvatum</i>): defining a threshold for deer browsing pressure at the Indiana Dunes National Lakeshore [研究报告]
10.3133/sir20145070U.S. Geological Survey. 2014-01-01
Pavlovic, Noel B. npavlovic@usgs.gov;  Leicht-Young, Stacey A.;  Grundel, Ralph rgrundel@usgs.gov
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