Invasiveness Ranking System for Non-Native Plants of Alaska

Sinha, S., R. Saxena, and S. Singh. 2000. Fluoride removal from water by Hydrilla verticillata (l.f.) Royle and itstoxic effects. Bulletin of Environmental Contamination and Toxicology 65: 683-690.Smith, A.E. 1990. Potential allelopathic influence of certain pasture weeds. Crop protection 9(6): 410-414.Smith, J.G. 1963. A subalpine grassland seeding trial. Journal of Range Management. 16: 208-210.Smith, L.M. and L.T. Kok. 1984. Dispersal of musk thistle (Carduus nutans) seeds. Weed science 32: 120-125.Snow, B. and D. Snow. 1988. Birds and berries. A study of an ecological interaction. T&AD Poyser, Calton. Pp.56-57.Snyder J.M., UAF Cooperative Extension Service. 2221 E. Northern Lights Blvd. #118 Anchorage, AK 99508-4143 Tel: (907) 786-6310 alt.tel: (907) 743-9448.Snyder, C. and M. Shephard. 2004. Spotted knapweed. United States Department of Agriculture. Prepared byForest Service Alaska Region. Leaflet R10-TP-125 May 2004.Snyder, S.A. 1992. Elytrigia repens. In: Fire Effects Information System, [Online]. U.S. Department ofAgriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer).Available: http://www.fs.fed.us/database/feis/ [May 7, 2004].Snyder, S.A. 1992. Phalaris arundinacea. In: Fire Effects Information System, [Online]. U.S. Department ofAgriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer).Available: http://www.fs.fed.us/database/feis/ [2004, May 5].Sobey, D.G. 1981. Biological flora of the British Isles. Stellaria media (L.) Vill. Journal of Ecology 69: 311-335.Sobey, D.G. and J.B. Kenworthy. 1979. The relationship between herring gulls and the vegetation of theirbreeding colonies. The Journal of Ecology 67(2): 469-496.Southwick, E.E., G.M. Loper and S.E. Sadwick. 1981. Nectar production, composition, energetics andpollinator attractiveness in spring flowers of western New York. American Journal of Botany. 68(7): 994-1002.Sparrow, S.D., V.L. Cochran and E.B. Sparrow. 1993. Herbage yield and nitrogen accumulation by sevenlegume crops on acid and neutral soils in a subarctic environment. Canadian Journal of Plant Science 73:1037-1045.Spellman, B. 2007. Impacts of sweetclover on riparian plant communities. 8th Annual Statewide CNIPMWorkshop. Presentation 15 November 2007.Spence, S.K. 1998. Bioassay-directed isolation of the allelopathic constituents of the aquatic plant Nymphaeaodorata. Dissertation Abstracts International Part B: Science and Engineering 58(10): 4762.Spencer, D.F. and M. Rejmanek. 1989. Propagule type influences competition between two submersed aquaticmacrophytes. Oecologia 81: 132-137.Spencer P., Ecologist, National Park Service, Alaska Region - Biological Resources Team, 240 W. 5th Ave, #114,Anchorage, AK 99501 tel: (907) 644-3448 – Pers. com.Spira, T. and L.K. Wagner. 1983. Viability of seeds up to 211 years old extracted from adobe brick buildings ofCalifornia and Northern Mexico. American Journal of Botany 70(2): 303-307.Staniforth, J.G. and P.A. Scott. 1991. Dynamics of weed populations in a northern subarctic community.Canadian Journal of Botany. 69: 814-821.Staniforth, R.J. and P.B. Cavers. 1997. Distribution and habitats of four annual smartweeds in Ontario.Canadian Field-Naturalist 93(4): 378-385.Stanton, F. 1974. Wildlife guidelines for range fire rehabilitation. Tech. Note 6712. Denver, CO: U.S.Department of the Interior, Bureau of Land Management. 90 p.Starr, F., K. Starr, and L. Loope. 2003. Rubus discolor Himalayan blackberry Rosaceae. Plants of Hawaii.Available: http://www.hear.org/starr/hiplants/index.html via the INTERNET. Accessed 2003 Feb 07.B-171