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Refining Capture and Collaring Protocols for Red Foxes.

Holly M English¹, Patricia Romero², Lorraine Bull³

¹School of Biology and Environmental Science University College Dublin Dublin Ireland.

Ecology and Evolution

|January 21, 2026

Summary

This summary is machine-generated.

Researchers share improved trapping methods for red foxes (Vulpes vulpes) to increase capture success and animal welfare. Key recommendations include using remote monitoring and considering weather conditions for better wildlife research outcomes.

Keywords:

Vulpes vulpes movement ecology red fox tagging trapping urban wildlife wildlife welfare

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Area of Science:

Wildlife Ecology
Conservation Biology
Animal Behaviour

Background:

Wildlife capture is essential for ecological studies but poses welfare challenges.
Detailed capture protocols are often not shared internationally, hindering knowledge exchange.
Trap-shy species like the red fox require specialized trapping techniques.

Purpose of the Study:

To share detailed capture protocols for improving trapping success in red foxes (Vulpes vulpes).
To optimize animal welfare during wildlife capture operations.
To provide practical guidance for researchers trapping difficult species, especially in urban environments.

Main Methods:

Methodological refinements for trapping urban red foxes in Dublin, Ireland (n=16) and rural Tuscany, Italy (n=3).
Utilized remote transmission camera traps and remote trap alert systems for efficient monitoring.
Developed a lightweight collar drop-off mechanism to avoid re-capture for tag removal.

Main Results:

Successful capture of red foxes using refined methods.
Identified rainfall as a significant factor affecting capture likelihood in Dublin, while temperature did not.
Demonstrated the utility of remote monitoring and collar drop-off solutions.

Conclusions:

Sharing detailed capture protocols enhances research efficiency and animal welfare.
Recommended practices include setting multiple sites, minimizing fox time in traps, and using remote monitoring.
A checklist is provided to assist researchers in capturing foxes and other challenging species.