Dr. Uldis Roze
Ph.D. (Washington University)
Office: Colwin 09- Tel: (718) 997 -3400 and 3436
I have been interested in the anatomy, ecology, and natural history of the
North American porcupine, Erethizon dorsatum. Erethizon is in many ways an
atypical representative of the New World porcupines, the Erethizontidae. Its species
range is very large and extends far beyond the tropics. Its body size is the largest of
any erethizontid. Its diet includes tree bark to a greater extent than shown by any
other erethizontid. Its tail lacks prehensile function and functions instead as a
powerful quill-delivery system.
Recently, in collaboratiuon with Drs. Gaston Gine of the Univ. Estaduel de
Santa Cruz, Brazil, and David Chapman of Lakehead University, Canada, I have
become interested in the anatomy and natural history of another atypical
erethizontid, the thin-spined porcupine, Chaetomys subspinosus. Chaetomys has had
a long evolutionary separation from other New World porcupines and belongs to its
own sub-family, the Chaetomyinae. It is the only New World porcupine with quills
that lack one-way barbs. Its range is restricted to the Atlantic Forest of southeastern
Brazil, and because this forest has been 92% destroyed, Chaetomys may be the most
endangered of the New World porcupines.
2019. D.M. Chapman, G.A.F. Gine, and U. Roze. Microscopy and development of a remarkable pitted quill from the thin-spined porcupine, Chaetomys subspinosus. Can. J. Zool. 97(1): 31-41. PDF
2018. J. O Whitaker, Jr. and U. Roze. Invertebrates from porcupine (Erethizon dorsatum) rock dens from Greene County, Catskill Mountains, New York. Proc. Indiana Acad. Sci. 127(2): 124-127. PDF
2012. U. Roze. Porcupines, the Animal Answer Guide. Johns Hopkins University Press, Baltimore. 204 pp. See http://jhupressblog.com/
2010. U. Roze, K.T. Leung, EW. Nix, G. Burton, and D.M. Chapman 2010. Microanatomy and bacterial flora of the perineal glands of the North American porcupine. Can. J. Zool. 88:59-68. PDF
2009. U. Roze. The North American Porcupine, 2nd Ed., 288 pp. Cornell U. Press, Ithaca. Information Here
2006. U. Roze. Smart Weapons. Natural History 115 (March): 48-53. PDF
2004. U. Roze. Risk factors for injury in porcupines. Wildlife Rehabilitation 21: 61-63.
2003. U. Roze and L. M. Isle. Porcupine. p.p. 371-380 in: Wild Mammals of North America: Biology, Management, and Conservation. Second Edition, George A. Feldhamer, Bruce C. Thompson, and Joseph A. Chapman, Editors. Johns Hopkins University Press, Baltimore and London.
2002. U. Roze. A facilitated release mechanism for quills of the North American porcupine (Erethizon dorsatum). J. Mammalogy, 83(2):381-385.
1997 G. Li, U. Roze, and D.C. Locke. Warning odor of the North American porcupine (Erethizon dorsatum). J. Chem. Ecol. 23: 2737-2754.
1997 D.M. Chapman and U. Roze. Functional histology of quill erection in the porcupine, Erethizon dorsatum.Can. J. Zool. 75:1-10.
1990 U. Roze, D.C. Locke, and N. Vatakis. Antibiotic properties of porcupine quills. J. Chemical Ecology, 16:725-734.
1989 U. Roze. The North American Porcupine. Smithsonian Inst. Press, Washington, D.C., 261 pp.