↑ Innis, Harold A. (1999). The Fur Trade in Canada: An Introduction to Canadian Economic History. Revised and reprinted. Toronto: University of Toronto Press. ISBN0-8020-8196-7.
↑ Seton-Thompson, cited in Sun, Lixing; Dietland Müller-Schwarze (2003). The Beaver: Natural History of a Wetlands Engineer. Cornell University Press. ISBN0-8014-4098-X. pp. 97–98; but note that to arrive at this figure he assumed a population density throughout the range equivalent to that in Algonquin Park
↑ David L. Correll; Thomas E. Jordan; Donald E. Weller (June 2000). "Beaver pond biogeochemical effects in the Maryland Coastal Plain". Biogeochemistry. 49 (3): 217–239. doi:10.1023/a:1006330501887. JSTOR1469618.
↑ Erlandsen, S. L. & W. J. Bemrick (1988). Waterborne giardiasis: sources of Giardia cysts and evidence pertaining to their implication in human infection in P. M. Wallis and B. R. Hammond (ed.), Advances in Giardia research. Calgary, Alberta, Canada: University of Calgary Press. pp. 227–236.
↑ R. C. A. Thompson (November 2000). "Giardiasis as a re-emerging infectious disease and its zoonotic potential". International Journal of Parasitology. 30 (12–13): 1259–1267. doi:10.1016/S0020-7519 (00) 00127-2 Check |doi= value (help). PMID11113253.
↑ Quentin D. Skinner; John E. Speck; Michael Smith; John C. Adams (March 1984). "Stream Water Quality as Influenced by Beaver within Grazing Systems in Wyoming". Journal of Range Management. 37 (2): 142–146. doi:10.2307/3898902. JSTOR3898902.
↑ Riedman, Marianne L. (1982). "The Evolution of Alloparental Care in Mammals and Birds". The Quarterly Review of Biology. 57 (4): 405–435. doi:10.1086/412936.
1 2 3 Bjorkoyli, Tore; Rosell, Frank (2002). "A Test of the Dear Enemy Phenomenon in the Eurasian Beaver". Animal Behavior. 63 (6): 1073–78. doi:10.1006/anbe.2002.3010.
1 2 3 4 Rosell, Frank; Nolet, Bart A. (1997). "Factors Affecting Scent-Marking Behavior in Eurasian Beaver (Castor Fiber)". Journal of Chemical Ecology. 23 (3): 673–89. doi:10.1023/B:JOEC.0000006403.74674.8a.
1 2 3 Rosell, Frank, and Andrezej Czech. (2000) "Response of Foraging Eurasian Beavers Castor Fiber to Predator Odours." Wildlife Biology 6 (1) : 13–21.
↑ Stewart, William Brenton (1974). Medicine in New Brunswick : a history of the practice of medicine...from prior to the arrival of the white man in America to the early part of the twentieth century. Moncton: The New Brunswick Medical Society. p. 1.
↑ Lev E (March 2003). "Traditional healing with animals (zootherapy) : medieval to present-day Levantine practice". J Ethnopharmacol. 85 (1): 107–18. doi:10.1016/S0378-8741 (02) 00377-X Check |doi= value (help). PMID12576209.
↑ Fenaroli's Handbook Of Flavor Ingredients puts total annual national consumption of castoreum, castoreum extract, and castoreum liquid at about 292 pounds, with individual annual consumption of castoreum extract at only .000081 mg/kg/day.
