Ursus americanus
Ursus americanus prope Riding Mountain National Park provinciae Canadensis
Manitobae
Ursus americanus (Pallas , 1780)
Ursus americanus
Ursus americanus est species ursorum communissima, in America septentrionali indigena.[3] Hic ursus est plerumque niger .[4]
Notae
↑ Garshelis, D.L.; Crider, D. & van Manen, F. (2008). "Ursus americanus". IUCN Red List of Threatened Species. Versio 2008. International Union for Conservation of Nature.
↑ Ursus americanus , Mammal Species of the World, 3a ed.
↑ Pelton, Michael R.; Coley, Alex B.; Eason, Thomas H.; Doan Martinez; Diana L.; Pederson, Joel A.; van Manen, Frank T.; Weaver, Keith M.. "Chapter 8. American Black Bear Conservation Action Plan" (PDF)
↑ *Brown, Gary (1993). The Great Bear Almanac . Lyons & Burford. ISBN 978-1-55821-210-7
Nexus externi
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