Figure 1.

From the Arctic to the forests of Cambodia to the Amazon, digital platforms including smart phone apps facilitate collection and sharing of community observations. (a) Monitoring the land in Nunatsiavut, Labrador, an observer takes a picture with the eNuk app on his iPad. Photograph: Ashlee Cunsolo. (b) The eNuk app on a cell phone. Photograph: Charlie Flowers. (c) A community patrol from Prey Lang documents an illegal timber harvest using the It's Our Forest Too app. Photograph: Ida Theilade. (d) The It's Our Forest Too app allows observers to take photos, record audio, and select from pre given categories such as observations of illegal activities, observations of wildlife, and interactions with officials and offenders. (e) Participants in a design workshop for the Ictio app, which collects observations of fish in the Amazon basin. (f) the Ictio app in action. Photograph: Gina Leite.