PT - JOURNAL ARTICLE AU - Stephen L. Young TI - What contributions are invasive plant species making to ecosystem services? AID - 10.2489/jswc.65.2.31A DP - 2010 Mar 01 TA - Journal of Soil and Water Conservation PG - 31A--32A VI - 65 IP - 2 4099 - http://www.jswconline.org/content/65/2/31A.short 4100 - http://www.jswconline.org/content/65/2/31A.full