Report on Summer Deer Observations, 2010, Wisconsin June 5, 2011


Report on Summer Deer Observations, 2010, Wisconsin June 5, 2011

Abstract: Fawn:doe ratios (FDRs) were relatively high (1.04) and stable across the farmland regions and below (0.81) the long-term average in the Northern Forest region. Long-term stability in FDRs across the farmland regions are speculative but may be associated with relatively favorable environmental conditions during the past 10-15 years, and subsequent increases in fawn production. Though uncertain, below average FDRs in the Northern Forest may be associated with potential impacts of predators on deer population growth and recruitment rates. Fawn:doe ratios from Operation Deer Watch (ODW) were lower than from the Summer Deer Observation (SDO) survey in all 5 deer management regions. Fawn:doe ratios from ODW were lower than from the SDO survey in 11 of 13 unit groups, and differed by 6–41% in 11 unit groups.




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