Bibliography and Citations

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Platts W.S.  1981.  Effects of sheep grazing on a riparian- stream environment.  
Platt JB.  1971.  A survey of nesting hawks, eagles, falcons and owls in Curlew Valley, Utah.  Great Basin Naturalist.  31(2):51-65.  Available from https://ojs.lib.byu.edu/spc/index.php/wnan/article/view/29902
Platt SWilliam.  1974.  Status and management recommendations for raptorial birds inhabiting the Challus Planning Unit, Salmon District BLM, USDI, Idaho.  
Platt JR.  1964.  Strong inference: certain systematic methods of scientific thinking may produce much more rapid progress than others.  Science.  146(3642):347-353.
Plant Conservation Roundtable.  1986.  Plant conservation guidelines: scientists and teachers.
Place A.R., Stiles E.W..  1992.  Living off the wax of the land: bayberries and Yellow-rumped Warblers.  Auk.  109:334-345.
J. Pittillo D, Brown AE.  1988.  Additions to the vascular flora of the Carolinas. III.  Journal of the Elisha Mitchell Scientific Society.  104(1):1-18.
Pitocchelli J..  1990.  Plumage, morphometric, and song variation in mourning (OPORORNIS PHILADELPHIA) and MacGillivray's (O. TOLMIEI) warblers.  Auk.  107:161-171.
Pitman S..  1990.  National list of rare lichens.  
Pisut I..  1990.  To the distribution of some lichens in central Europe.  Bioligia (Bratislava).  45:685-692.
Pister E.P.  1979.  Endangered species: costs and benefits.  Great Basin Naturalist.  No. 3:151-158.
Piper C.V.  1906.  Flora of the state of Washington. Contributions from the United States National Herbarium.  XI.  
Piper C.V, Beattie R.K.  1914.  Flora of southeastern Washington and adjacent Idaho.
Pine DS.  1981.  Identifying sex of mountain quail by length of crest plume.  Journal of Wildlife Management.  45(4):1056-1057.
Pimm S.L.  1993.  Life on an intermittent edge.  Trends in Ecology and Evolution.  8(2):45-46.
Pimentel D, Zuniga R, Morrison D.  2005.  Update on the environmental and economic costs associated with alien-invasive species in the United States.  Ecological Economics.  52(2005):273–288.  Available from http://www.sciencedirect.com/science/article/pii/S0921800904003027
Pimentel RA.  1960.  Inter- and intrahabitat movements of the rough-skinned newt, Taricha torosa granulosa (Skilton).  American Midland Naturalist.  63(2):470-496.  Available from http://www.jstor.org/stable/2422806
Pilz G.E.  1978.  Systematics of Mirabilis subgenus Quamoclidion (Nyctaginaceae).  Madrono.  25(3):113-132.
Pilz D., Molina R..  1996.  Managing forest ecosystems to conserve fungus diversity and sustain wild mushroom harvests.  
Pilsbry H.A.  1939.  Land Mollusca of North America (North of Mexico).  Academy of Natural Sciences of Philadelphia Monograph.  3(1):1-573.
Pilsbry H.A.  1948.  Land Mollusca of North America (north of Mexico), vol. 2. pt. 2.  Academy of Natural Sciences of Philadelphia Monograph.  3(2):521-1113.
Pilsbry HA.  1933.  Notes on the anatomy of Oreohelix,—III, with descriptions of new species and subspecies.  Proceedings of the Academy of Natural Sciences of Philadelphia.  85:383-410.  Available from http://www.jstor.org/stable/4064181
Pilsbry H.A.  1902.  New American land shells.  Nautilus.  16:30-33.
Pilsbry H.A.  1899.  Catalogue of the Amnicolidae of the western United States.  Nautilus.  12:121-127.
Pilsbry H.A.  1907.  A new species of Fluminicola.  Nautilus.  21:75-76.