Camera TrapsCamera traps capture bursts of pictures of warm-bodied animals that pass in front of an passive infrared sensor. This allows researchers to survey terrestrial mammals and birds in a standardized, non-invasive way. The cameras work 24 hours a day and can remain in the field for 2-3 months at a time. This means that it is possible to get estimates even for secretive species that are hard to detect with traditional census methods.
Photo DatabaseThis website gives access to a database that was developed to semi-automatically process and store the huge amounts of photographs that camera trapping surveys collect. We host a variety of wildlife survey projects from around the world. The database allows researchers to rapidly process the collected photo material into standardized datasets.
How does it work?Photos are first uploaded to the server. Then, the database is automatically populated with metadata that is read from the embedded EXIF in the photographs. Since most camera traps take a number of photos when triggered, photos that are taken close to each other are automatically grouped into sequences. These sequences are likely to have the same animal, or group of animals, in them. A user-friendly interface then allows researchers to process these sequences and identify the animals in them. Information like species, age, sex, behaviour and individuals can be added to the photos. After the photos are processed the database can produce a standardized output in CSV format, which can be opened directly in other applications for analysis.