Modelling%20Deer%20Population%20Dynamics

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Modelling DeerPopulation Dynamics
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Is deer management cost-effective?
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Inputs 1
1. Enter recruitment and survival rates
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Recruitment rate information sources

• Cull pregnancy rates
• Cull lactation rates
• Cull calfhind ratios
• Calfhind observations
• Published information

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Survival ratesinformation sources

• Published information

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Inputs 2
2. Enter initial numbers of deer in each age
class (in summer before the cull)
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Initial population sizeinformation sources

• Dung density assessments
• Visual /Infra red imager counts
• Cohort analysis

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Initial sex and age structureinformation sources

• Observations of sex ratio
• Cull sex and age structure
• Published information

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Inputs 3
3. Enter actual or proposed culls
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Model output
19 stag and hind cull
25 stag and hind cull
50 stag and hind cull
40 stag, 60 hind cull
20 stag, 80 hind cull
40 stag, 80 hind cull