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- Summary - There is increasing concern about how land management practices influence the frequency of mass erosion and sedimentation over large temporal and spatial scales. Monte Carlo simulations can identify fruitful areas for continuing cooperation between scientists in the U.S.A. and Japan.AuthorsRobert ZiemerKeywordsSourceIn: Proceedings, Japan-U.S. Workshop on Snow Avalanche, Landslide, Debris Flow Prediction and Control. 30 Sept-5 Oct 1991. Tsukuba, Japan. Organizing Committee of the Japan-U.S. Workshop on Snow Avalanche, Landslide, Debris Flow Prediction and Control, Tsukuba, Japan. 533-542.Year1991
- Thirty nests of Hammond’s (Empidonax hammondii) and 88 nests of Pacificslope (E. difficilis) Flycatchers were located in different-aged Douglas-fir (Pseudotsuga menziesii)/ tanoak (Lithocarpus densiflorus) dominated forests at 12 study sites in northwestern California during the breeding seasons of 1984, 1985, 1987, and 1988. In contrast to Pacificslope Flycatchers, Hammond’s used nest trees that averaged two to three times taller; placed nests three times higher and farther from the tree bole; used only live trees; placed nests only on small- to medium-diameter branches; situated nests in...AuthorsH.F. Sakai, B.R. NoonKeywordsSourceCondor. 93(3): 563-574Year1991
- AuthorsA.K. Korman, D.P. Pashley, M.I. Haverty, J.P. La FageSourceAnn. Entomol. Soc. Amer. 84: 1-9.Year1991
- This paper discusses the effects of the valley width for discontinuities of sediment transport in natural stream channels. The results may be summarized as follows: 1)ln torrential rivers. deposition or erosion depend mostly on the sediment supply. not on the magnitude of the flow discharge. 2)Wide valley floors of streams are depositional spaces where the excess sediment from the upper stream area is temporarily deposited. In the erosional process that follows, the sediment runs off down stream in a way that can be explained by an exponential process.AuthorsHideji MaitaSourceIn: Rice, Raymond M., technical coordinator. 1991. Proceedings of the IUFRO technical session on geomorphic hazards in managed forests; 5-11 August 1990; Montreal, Canada. Gen. Tech. Rep. PSW-GTR-130, Berkeley, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 56-64Year1991
- AuthorsD.D. Murphy, B.R. NoonSourceEndangered Species UPDATE 8(12):6Year1991
- AuthorsB.R. Noon, K. YoungSourceConservation Biology 5:141-143Year1991
- Enclosed is the report that Walt Megahan and I prepared following our trip to States of Micronesia. As we discussed earlier, we felt that it was redundant to produce a set of guidelines for road construction since the FAO Conservation Guide 13/5 that was issued in 1989 (ISBN 92-5-102789-X) covers the subject extensively. We felt that we could best tailor this report to specific recommendations related to what we observed on our trip and to reference those sections in the FAO Guide that are applicable, and to identify those instances where the FAO Guide is not applicable to conditions in FSMAuthorsRobert Ziemer, Walter F. MegahanKeywordsSourceFinal Report to Environment and Policy Institute, East-West Center and South Pacific Region Environment Program, 8 April 1991. 49 pYear1991
- AuthorsB.B. Bingham, J.O. SawyerSourcePages 363-377 in: Ruggeiro, L.F.; Aubry, K.B.; Carey, A.B.; Huff, M.H., (Technical Coordinators). Wildlife and Vegetation of Unmanaged Douglas-fir Forests. General Technical Report PNW-GTR-285. Portland, OR: USDA, Forest Service, Pacific Northwest Research StationYear1991
- AuthorsInteragency Scientific Committee (B.Noon)SourceJournal of Wildlife Management 89(8):23-26Year1991
- . 1991. .(145K)AuthorsP.W.C. Paton, C.J. Zabel, D.L. Neal, G.N. Steger, N.G. Tilghman, B.R. NoonSourceJournal of Wildlife Management 55(4):617-622Year1991