. Il campo Canadese-naturalista. 230 Il canadese Field-Naturalist Vol. 108 lesioni scheletriche di un adulto Timber Wolf, Canis lupus, in Ontario del nord Frank F. Mallory, T. L. Hillis, C. G. Blomme e W. G. Hurst Dipartimento di Biologia della Laurentian University di Sudbury, Ontario P3E 2C6 Mallory, Frank F., T. L. Hillis, C. G. Blomme e W. G. Hurst. 1994. Lesioni scheletriche di un adulto Timber Wolf, Canis lupus, in Ontario del nord. Canadian Field-Naturalist 108(2): 230-232. La carcassa di un maschio adulto Lupo (Canis lupus), colto nel laccio a fine dicembre in Waldey Township, è stato recuperato e il cranio di clea

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. The Canadian field-naturalist. 230 The Canadian Field-Naturalist Vol. 108 Skeletal Injuries of an Adult Timber Wolf, Canis lupus, in Northern Ontario Frank F. Mallory, T. L. Hillis, C. G. Blomme, and W. G. Hurst Department of Biology, Laurentian University, Sudbury, Ontario P3E 2C6 Mallory, Frank F., T. L. Hillis, C. G. Blomme, and W. G. Hurst. 1994. Skeletal injuries of an adult Timber Wolf, Canis lupus, in northern Ontario. Canadian Field-Naturalist 108(2): 230-232. The carcass of an adult male Wolf (Canis lupus), snared in late December in Waldey Township, was recovered and the skull cleaned. Upon examination it was evident that the animal had suffered a comminuted fracture of the left mandible. Upon further examination other injuries were noted. All injuries were in the process of healing. Key Words : Timber Wolf, Canis lupus, skull injuries, northern Ontario. Any time a wolf attempts to capture prey larger than itself, it places itself in a hazardous position. Reports of nonfatal injury to wolves by prey are infrequent because of the inability to observe such occurrences (Mech 1970; Mech and Nelson 1989). Some incidents of injury as a result of prey encoun- ters have been observed (Stanwell-Fletcher and Stanwell-Fletcher 1942; Mech 1970; Frijlink 1977; Gray 1987; Mech and Nelson 1989) or are reported from collection of carcasses for other purposes (Young and Goldman 1944; Rausch 1967; Nelson and Mech 1985; Mech and Nelson 1989; Pasitschniak-Arts et al. 1988; Hillis 1990). Traumatic injuries to the lower jaw may result from bullet wounds, physical injuries or hunting con- frontation with big game. These injuries may be seen in a healed state well after the initial impact has occurred (Pasitschniak-Arts et al. 1988). This note reports on an incident of a wolf injured by a severe impact, by the nature of the injury, suspected as a blow by a Moose, Alces alces, in northern Ontario. An adult male wolf was snared in late December in Waldey Township, approximately 9

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