What the study found
The study found that a conservation detection dog detected avian carcasses more often than human surveyors. Detection was also affected by carcass size and ground substrate, with larger carcasses and less vegetatively complex areas being easier to detect.
Why the authors say this matters
The authors say the findings can help managers design carcass surveys and improve wildlife mortality monitoring. The study suggests this may support more accurate mortality estimates for conservation and management.
What the researchers tested
The researchers ran two years of detection trials in the semi-arid high desert of southern New Mexico, USA. They tested 27 human surveyors and one conservation detection dog across 1,096 trials using 238 carcasses from 50 avian species.
What worked and what didn't
The dog showed a higher mean detection probability (0.87) than human surveyors (mean 0.49), and human individuals ranged from 0.25 to 0.71. Detection probability for both surveyor types was higher for larger carcasses and in areas with lower vegetative complexity.
What to keep in mind
The abstract does not describe additional limitations beyond the study setting and trial design. The findings come from one region, with one conservation detection dog and a specific set of carcass trials.
Key points
- A conservation detection dog detected carcasses more often than human surveyors.
- Human surveyors had a mean detection probability of 0.49, compared with 0.87 for the dog.
- Larger carcasses were easier to detect than smaller ones.
- Lower vegetative complexity on the ground improved detection for both surveyor types.
- The study used 1,096 trials with 238 carcasses from 50 avian species.
Disclosure
- Research title:
- Carcass detection varies by surveyor type, size, and ground cover
- Authors:
- Kelley C. Boland, Abigail J. Lawson, Dylan M. Osterhaus, Patricia L. Cutler, Gregory A. Davidson, Martha J. Desmond
- Institutions:
- Buena Vista University, New Mexico State University, New Mexico State University, New Mexico State University, New Mexico State University, United States Department of the Army
- Publication date:
- 2026-03-07
- OpenAlex record:
- View
Get the weekly research newsletter
Stay current with peer-reviewed research without reading academic papers — one filtered digest, every Friday.

