Future Island-Island Impact Cards: Digital Library of Bites: Bait & Block Imprint Marks

Challenge
The LIFE Raft project is to eradicate the two invasive species of feral ferrets and rats on Rathlin Island. During the eradication rodenticide baits and wax blocks are used to test for the continued presence of these animals. Training teams and the community to recognise bite imprints is key to effective monitoring, however strict safety protocols restrict who can handle rodenticide.
Approach
Samples of rodenticide bait and wax blocks were 3D scanned using photogrammetry and converted into digital polygon models and Gaussian Splats creating a digital library demonstrator. The polygon models were converted into 3D printable files and rescaled to match their real-life size. Gaussian Splats were converted into digitally interactive 3D object files.
Outcomes
Three bite imprints from rat, mouse, and rabbit were accurately 3D printed to scale using partially recycled PLA (cornstarch) filament. Gaussian Splats captured the visual textures of the original samples. Collectively, these models offer a safe, effective way to educate people about the distinguishing features of different bite marks.
Learnings
Currently, bite mark education resources rely on photographic images. This new approach provides two types of 3D information, improving understanding of marks and scale. This information has benefit beyond eradication projects to domestic, hospitality and agriculture settings.
Impact
These digital files offer potential for an open-source database of bite imprints that could be shareable with other conservation projects and place-based communities worldwide if made accessible via a digital platform or through local 3D printing where needed.