Contours of citizen science: a vignette study.

Citizen science has expanded rapidly over the past decades. Yet, defining citizen science and its boundaries remained a challenge, and this is reflected in the literature-for example in the proliferation of typologies and definitions. There is a need for identifying areas of agreement and disagreement within the citizen science practitioners community on what should be considered as citizen science activity.

Learning and the transformative potential of citizen science.

The number of collaborative initiatives between scientists and volunteers (i.e., citizen science) is increasing across many research fields.