Researchers have found that repositioning camera traps to capture images from above allows them to distinguish individual guiñas—small felids in Chile and Argentina—by their subtle back markings, a breakthrough that could improve population monitoring and conservation strategies.
- Guiña identification improves with overhead camera traps
- Technique reveals unique back markings despite small size
- Could refine population estimates and conservation plans
What happened
Guiña (Leopardus guigna), small forest cats native to Chile and Argentina, are notoriously difficult to identify individually due to their subtle black spot patterns. Traditional camera traps positioned at ground level failed to clearly distinguish one cat from another because the markings are small and often obscured.
To address this, a research team led by Nicholas Galvez in Chile repositioned cameras above the animals, pointing downward from tree branches and poles—a setup called the 'zenith' angle. This method allowed them to capture the backs of guiñas where markings are more distinct. From 350 high-quality photos with visible spots, they successfully identified 12 individual cats, a milestone published in the journal Oryx.
Why it feels good
This innovative technique offers a promising solution to one of ecology's longstanding challenges: accurately counting individuals of small, elusive species. For guiña cats, reliable population estimates have been scarce, hindering conservation efforts. With the International Union for Conservation of Nature recently changing the species' status from vulnerable to least concern, more precise data is now crucial to address remaining at-risk subpopulations.
Scientists like Ilaria Agostini from Argentina and conservationists working with Panthera have praised the study as potentially transformative. The overhead images provide a clear window into a species that has been difficult to monitor, helping to fill knowledge gaps that could inform better protection measures.
What to enjoy or watch next
While promising, the zenith camera approach does have limitations. Melanistic guiñas, which have dark fur masking spot patterns, were a challenge in the study. Future work may explore using white flash cameras to enhance markings’ visibility on these dark individuals. Additionally, the method requires many quality photos of each cat and may be less practical in areas with few guiñas.
Moving forward, researchers aim to refine this technique and test its impact on population modeling. As more field studies adopt this approach, it could become a valuable tool not only for guiñas but also for monitoring other cryptic, small carnivores. Nature enthusiasts and conservation followers can look forward to clearer insights into the lives of these charming forest cats.