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Urban Deer Management Plan –St. Andrews
Maddie Hall, Nicole Hornsby, Angela Dick, Courtney le Roux, Dominique Williams
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What Is The Problem?
• Social carrying
capacity
• New development
(2010)
• Human health risks
• Property damage
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Accelerating Factors?
• No natural predators
• Abundance of
palatable food
• Warm climate
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Impacts
• Private gardens
• Public spaces
• Vehicle collisions
• Lyme disease
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Current Approach – Bow Hunt
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# Harvested Harvest Rate (%)
2016 3 2.8%
2017 27 25%
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Project Goals
• Identify current deer density
• Identify social carrying capacity
• Conduct public opinion survey
• Evaluate options
• Provide recommendation
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Deer Density
• Urban issues
• Obstructions
• Privacy issues
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Results – Density Estimate
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Sample No.
No. In-towndeer
Corrected No.
No. Out-town deer
Total No. Deer
Sample mean
Standard Deviation
1 23 31 45 76
2 34 46 38 74
3 26 35 36 71
4 20 27 42 69
5 29 39 39 78 73.60 3.26
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Results – Density Estimate
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Current Ideal
Density (deer/Km2)
13 deer/Km2 3-5 deer/Km2
# Deer 107 24-42
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Public Opinion SurveyResults – 42% Response Rate
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Control Options: Non-Lethal
• Fertility Control
• Repellents/Barriers
• Regulations
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Control Methods: LethalFemales Only
• Polygamous
• Only dominant
males breed
• Females have high
home fidelity
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Control Options: Lethal
• Cull
• Hunting Quota
• Translocation
• Chemical Euthanasia
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Control Options: Lethal
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Public Opinion SurveyResults – 42% Response Rate
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Current Population Forecast -25% Intensity Hunt
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Alternatives Considered
• Hunt only
• Cull only
• Euthanasia only
• Hunt + Cull
• Hunt + Euthanasia
• Periodic hunt following hunt + cull
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Population Control Method
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Year Method Intensity Number of Individuals
1-3 CullHunt
40%59%
3247
4-15 Hunt 70% 56
16-20 Hunt 50% 40
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Forecasted Population Change –Hunt + Cull Method
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Estimated Cost –Hunt + Cull
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Deer harvested
Cost ($) 1 Year 3 Years
32 350 $11, 200 $33, 600
32 600 $19, 200 $57, 600
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Final Recommendation
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•Hunt + Cull combination method
•Reduce town’s attractiveness to deer-Unpalatable plants-Repellants/Barriers
•Regular population monitoring
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Thank You
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•Questions?
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How does the model work?
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Lyme Disease
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What to do with the meat?
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• Donate to food banks• Regulations need to
change
• Subsidize processing fee
• Donate to zoos
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Plants
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•Lavender •Hawthorn •Sage •Peonies•Bleeding hearts