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Pigeon control by chemosterilization: population model from laboratory results.
Science (New York, N.Y.)
|October 16, 1970
Summary
Mestranol in synthetic grit inhibits pigeon reproduction, potentially sterilizing squabs. Chemosterilization offers advantages over lethal pigeon control methods.
Area of Science:
- Wildlife Management
- Veterinary Pharmacology
Background:
- Pigeon overpopulation presents urban challenges.
- Existing control methods often involve lethal force.
Purpose of the Study:
- To evaluate mestranol as a non-lethal pigeon population control agent.
- To model the effectiveness of chemosterilization in pigeon population dynamics.
Main Methods:
- Incorporation of mestranol into a synthetic grit for controlled dosage.
- Observation of reproductive inhibition in adult pigeons.
- Assessment of potential sterilization in young pigeons (squabs) via crop milk.
- Development of a theoretical population dynamics model using laboratory data.
Main Results:
- Mestranol effectively inhibits pigeon reproductive capacity.
- Continuous release from grit ensures daily dosing.
- Exposure through crop milk may lead to permanent sterilization of squabs.
- Chemosterilization demonstrated theoretical advantages over culling for population control.
Conclusions:
- Mestranol-treated grit is a viable method for inhibiting pigeon reproduction.
- Chemosterilization presents a humane and potentially more effective alternative to lethal pigeon control.
- Further research into long-term sterilization effects and field application is warranted.