THE EFFECTS OF HEAVY BROWSING PRESSURE OVER EIGHT YEARS ON A CUTOVER IN QUETICO PARK
A 1970 browse survey on a cutover supporting a high density, unhunted moose population in Ontario’s Quetico Park was repeated in 1978 to ascertain the effects on the vegetative community of intensive browsing by moose over eight years. Results of the survey indicate that while there has been an insignificant (P < .05) change in the number of living stems/ha (down 15.2%), the percentage of stems browsed, hedged and killed by browsing has increased significantly (P < .01). The 88.0% increase in the mean number of stems hedged and the 820.0% increase in the mean number of stems killed by moose browsing over eight years indicate that an average moose density of 5 km2 (12/mi2) probably exceeds the carrying capacity of this range.
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