Bibliography and Citations

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Rittenhouse B.H.  1990.  Distribution and life history of Challis milkvetch (Astragalus amblytropis Barneby), an endemic of east-central Idaho.  :75pp..
Rittenhouse B..  1988.  Location information for Astragalus amblytropis, resulting from summer 1988 field work in Custer County for Bureau of Land Management.  
Rittenhouse BH.  Submitted.  Professional background information.  Rittenhouse, Bruce..  
Rittenhouse B..  1992.  Significant plants of New River.  Bulletin of the Native Plant Society of Oregon.  25(11):111-113.
Rittenhouse DD.  1997.  Survey of Papoose Cave [letter from the Forest Supervisor of the Boise National Forest to the District Ranger of the Salmon River Ranger District summarizing findings of a January 1997 survey of the cave for winter use by bats].  
Rittenhouse B, Rosentretter R.  1994.  The autecology of Challis milkvetch, an endemic of east-central Idaho.  Natural Areas Journal.  14(1):22-30.
Rittenhouse B..  1989.  T/E population location information forms for field work done in the summer of 1989.  
Ritter S..  1996.  Idaho's nongame landbirds: making room.  
Ritter S..  1989.  Nongame species account: common loon.  
Ritter S.A, Cerovski. A.O.  1990.  1990 update on the status and distribution of colonially nesting waterbirds in Wyoming.  
Ritter S..  1989.  Nongame species account: Caspian tern.  
Ritter S..  1994.  Interim management guidelines for the black-backed woodpecker.  
Ritter S..  1999.  Memo containing results of a point-count survey for birds on the Double Diamond Ranch, near Oakley, ID. Sent with a letter from Miriam Austin dated July 11, 1999.  
Rivers MC, Taylor L, Brummitt NA, Meagher TR, Roberts DL, Lughadha EN.  2011.  How many herbarium specimens are needed to detect threatened species? Biological Conservation.  144:2541-2547.
Robbins M.B., Stiles F.G..  1999.  A new species of Pygmy-Owl (Strigidae: GLAUCIDIUM) from the Pacific slope of the northern Andes.  Auk.  116(2):305-315.
Robbins CS.  1981.  Effect on time of day on bird activity.  Studies in Avian Biology.  6:275-286.  Available from https://sora.unm.edu/node/49
Robbins J..  1986.  Wolves across the border.  Natural History.  95(5):6-15.
Robel RJ, Harrington, Jr. JA, Hagen CA, Pitman JC, Reker RR.  2004.  Effect of energy development and human activity on the use of sand sagebrush habitat by lesser prairie-chickens in southwestern Kansas. Transactions of the Sixty-ninth North American Wildlife and Natural Resources Conference; 16-20 March 2004.  69.  Wildlife Management Institute, Publications Department, editor. Spokane (WA): Wildlife Management Institute.   p. 251-266.  Available from http://www.wildlifemanagementinstitute.org/store/product.php?productid=16183
Roberge J-M, Angelstam P.  2004.  Usefulness of the umbrella species concept as a conservation tool.  Conservation Biology.  18(1):76-85.
Roberson E.B.  2001.  Management of rare plants under state and federal endangered species law: a CNPS perspective.  Fremontia.  29(3-4):5-12.
Roberson E.B.  2002.  Barriers to native plant conservation in the United States: funding, staffing, law.  
Roberson E.B.  1997.  Species protection: economic issues, myths and facts.  
Robert M., McNeil R., Leduc A..  1989.  Conditions and significance of night feeding in shorebirds and other water birds in a tropical lagoon.  Auk.  106:94-101.
Roberts H.B.  2001.  Survey of pygmy rabbit distribution numbers and habitat use in Lemhi and Custer counties, Idaho.  
Roberts D.R.  1962.  Rodent movements in a cutover forest of the Sierra Nevada, California.  Journal of Mammalogy.  43:316-324.