INTEGRATION OF MOOSE AERIAL SURVEY AND HUNTER HARVEST INFORMATION TO ESTABLISH FUTURE HARVESTS IN THE SOUTHWEST YUKON
Abstract
Moose (Alces alces) population and harvest estimates were determined for Game management Subzones (GMS) in the Southwest Yukon survey area from data described in Larsen (1982) and Kale (1982).
The harvestable surplus was determined by comparing the post-hunt 1981 population for each GMS to the expected pre-hunt 1982 population. An additional adult male harvest, called the allowable overharvest, was also calculated by allowing the harvest to decrease the adult bull:adult cow ratio to 30:100. Twenty computer simulation scenarios with varying fecundity and survival rates were considered prior to selecting optimistic parameter values.
Management conclusions were based on decision criteria that compare the allowable harvest and allowable overharvest to the average annual harvest and population level. When the criteria were applied to the 47 GMS in the Southwest Yukon survey area, 16 (34%) of the GMS can still support an unrestricted bulls only harvest, 23 of the GMS (47%) should have a permit regulated bulls only harvest, while the remaining 8 GMS (17%) should be closed to moose hunting entirely.
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