Study

Effect of limited antlered harvest on mule deer sex and age ratios

  • Published source details Bishop C.J., White G.C., Freddy D.J. & Watkins B.E. (2005) Effect of limited antlered harvest on mule deer sex and age ratios. Wildlife Society Bulletin, 33, 662-668

Actions

This study is summarised as evidence for the following.

Action Category

Prohibit or restrict hunting of particular sex/ breeding status/age animals

Action Link
Terrestrial Mammal Conservation
  1. Prohibit or restrict hunting of particular sex/ breeding status/age animals

    A replicated, before-and-after study in 1983–1998 of four deer management areas in a largely forested region of Colorado, USA (Bishop et al. 2005) found that restricting the harvest of male mule deer Odocoileus hemionus did not increase the number of fawns/adult female deer. After introduction of hunting restrictions, the fawn:adult female deer ratio declined by 7.5 fawns:100 adult females (absolute numbers not presented). During this time, harvests of male deer fell from an average of 788/management area/year to 209/management area/year and the ratio of male:female deer increased by 4.5:100 female deer. Harvests of male deer were unlimited up to 1990. Commencing in 1991 (one area), 1992 (two areas) and 1995 (one area), restrictions were imposed on harvests of male deer, resulting in a fall in average harvests from 788/year pre-restriction to 209/year post-restriction. Aerial deer surveys were carried out in December–January.

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust