4.7 Article

Assessing the impact of free-roaming dog population management through systems modelling

Journal

SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -

Publisher

NATURE PORTFOLIO
DOI: 10.1038/s41598-022-15049-1

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Funding

  1. VIER PFOTEN International

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Free-roaming dogs pose challenges to public health, wildlife conservation, and livestock production, and may also suffer from poor health and welfare. Effective and cost-efficient strategies are needed to manage the dog population. A system dynamics model is proposed to incorporate the interaction between dog subpopulations, with methods that control fertility and promote responsible ownership showing potential in reducing free-roaming dog numbers over longer periods while improving welfare.
Free-roaming dogs can present significant challenges to public health, wildlife conservation, and livestock production. Free-roaming dogs may also experience poor health and welfare. Dog population management is widely conducted to mitigate these issues. To ensure efficient use of resources, it is critical that effective, cost-efficient, and high-welfare strategies are identified. The dog population comprises distinct subpopulations characterised by their restriction status and level of ownership, but the assessment of dog population management often fails to consider the impact of the interaction between subpopulations on management success. We present a system dynamics model that incorporates an interactive and dynamic system of dog subpopulations. Methods incorporating both fertility control and responsible ownership interventions (leading to a reduction in abandonment and roaming of owned dogs, and an increase in shelter adoptions) have the greatest potential to reduce free-roaming dog population sizes over longer periods of time, whilst being cost-effective and improving overall welfare. We suggest that future management should be applied at high levels of coverage and should target all sources of population increase, such as abandonment, births, and owners of free-roaming dogs, to ensure effective and cost-efficient reduction in free-roaming dog numbers.

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