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Variation in spring harvest rates of male wild turkeys in New York,Ohio, and Pennsylvania
Authors:Duane R. Diefenbach  Mary Jo Casalena  Michael V. Schiavone  Michael Reynolds  Robert Eriksen  Wendy C. Vreeland  Bryan Swift  Robert C. Boyd
Affiliation:1. U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, PA 16802, USA;2. Pennsylvania Game Commission, 2001 Elmerton Ave., Harrisburg, PA 17110, USA;3. Division of Fish, Wildlife, and Marine Resources, New York State Department of Environmental Conservation, 625 Broadway, Albany, NY 12233, USA;4. Division of Wildlife, Ohio Department of Natural Resources, 360 East State St., Athens, OH 45701, USA;5. National Wild Turkey Federation, 770 Augusta Road, Edgefield, SC 29824, USA;6. Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, PA 16802, USA
Abstract:Spring harvest rates of male wild turkeys (Meleagris gallapavo) influence the number and proportion of adult males in the population and turkey population models have treated harvest as additive to other sources of mortality. Therefore, hunting regulations and their effect on spring harvest rates have direct implications for hunter satisfaction. We used tag recovery models to estimate survival rates, investigate spatial, temporal, and demographic variability in harvest rates, and assess how harvest rates may be related to management strategies and landscape characteristics. We banded 3,266 male wild turkeys throughout New York, Ohio, and Pennsylvania during 2006–2009. We found little evidence that harvest rates varied by year or management zone. The proportion of the landscape that was forested within 6.5 km of the capture location was negatively related to harvest rates; however, even though the proportion forested ranged from 0.008 to 0.96 across our study area, this corresponded to differences in harvest rates of only 2–5%. Annual survival was approximately twice as high for juveniles equation image as adults equation image . In turn, spring harvest rates for adult turkeys were greater for adults equation image than juveniles equation image . We estimated the population of male turkeys in New York and Pennsylvania ranged from 104,000 to 132,000 in all years and ranged from 63,000 to 75,000 in Ohio. Because of greater harvest rates for adult males, the proportion of adult males in the population was less than in the harvest and ranged from 0.40 to 0.81 among all states and years. The high harvest rates observed for adults may be offset by greater recruitment of juveniles into the adult age class the following year such that these states can sustain high harvest rates yet still maintain a relative high proportion of adult males in the harvest and population. © 2011 The Wildlife Society.
Keywords:harvest rate  hunting mortality  Meleagris gallapavo  New York  Ohio  Pennsylvania  spring hunting  survival  wild turkey
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