
Photo of a hind footprint of an Andean bear in the cloud forest of southern Peru.
Due to logistical challenges, it took longer than I expected to place the cameras in Peru’s cloud forest last fall. I now understand well why no one’s done this before! However, one issue that I thought might be a challenge turned out to be no challenge at all.

Peruvian field workers with a camera trap in the cloud forest.
There were three other promising signs:
- First, these gentlemen kept teasing me about how many bears would be photographed, and what the chances were that all the photos would be of bears’, um, derrieres, and not of their faces.
- Second, as they programmed each new camera installation, team members would look over each other’s shoulder, ready to applaud, and critique. However, each man was careful and thorough, and mastered the process at hand.
- Third, two men encountered a bear on the trail, in broad daylight, about 400 meters (1,300 feet) away from where the rest of us were debating whether we had achieved optimal camera placement. At first I didn’t believe that they had seen a bear, because they had been teasing me so much. However, when we went down the trail, there was no denying the evidence in the mud: fresh tracks of an Andean bear.
The field workers are changing the batteries and memory cards in the cameras every month until I return there in March to begin the next stage of the project. The photos from the first month of operation have been collected, downloaded, and sent to Lima, Peru. However, there are so many photos that they cannot be e-mailed to me! So, I’ll have to wait for a DVD to arrive in the mail. I wonder, I wonder, what is in those photos?
Russ Van Horn is a senior researcher with the San Diego Zoo’s Institute for Conservation Research.
