Wild African Ape Reactions to Novel Camera Traps

Individuals within a species reacted differently to the cameras as well. For example, apes living in areas with more human activity, such as near research sites, can get desensitized to unfamiliar items and become indifferent toward such encounters in the future. However, another member of the same species who has had less exposure to strange or new items, might be more interested in them. The age of the ape plays a similar role. “Younger apes would explore the camera traps more by staring at them for longer periods of time,” Kalan says. “Like human children, they need to take in more information and learn about their environment. Being curious is one way of doing that.”

Camera traps like this one record monitoring data of wild animal populations.

© H. S. Kühl

The range of responses shown by the apes, and the complex differences both between species and within a single species, demonstrates a need for scientists to consider how animals will respond to the presence of unfamiliar monitoring equipment in their natural habitats. “The within and between species variation in behavior towards the unfamiliar items might be problematic when trying to collect accurate monitoring data,” Kalan says. “To curb this effect, it would be worth having a familiarization period, where the wild animals can get used to the new items.”

Despite this potential complication, using camera traps to monitor populations of animals in the wild is still one of the most useful options. “Our knowledge tends to be limited by the number of groups or number of populations we’re able to study, but using monitoring technology like camera traps is an effective way of solving that problem,” Kalan says. “I think it’s really interesting from a behavioral flexibility perspective to consider how wild animals react to these new technologies. I would love for more researchers to investigate novelty responses while doing monitoring surveys.”

Contacts and sources:
Dr. Ammie Kalan / Sandra Jacob