Conservation psychology was first described as a field of research nearly 15 years ago (Saunders 2003) and such was the optimism for psychology to affect conservation that Saunders et al. (2006) published "Using Psychology to Save Biodiversity and Human Well-Being" in Conservation Biology. Conservation psychology developed as an offshoot from environmental psychology, a field that evolved from social psychology in the 1950s. Although environmental psychology is the study of people and their interactions with their environments, both built and natural, it initially did not address conservation matters. As conservation of biodiversity gained prominence, research into the psychological dimensions of conservation proliferated, and in 2003 the term conservation psychology was adopted to differentiate this field from environmental psychology. However, despite differences in scope, environmental psychology and conservation psychology are sometimes used interchangeably (Clayton & Saunders 2012).Managing human behavior is essential for biodiversity conservation. It is therefore timely to consider the uptake and impact of conservation psychology by examining how the publishing record in this field has changed over time and how its content relates to biodiversity. We performed a literature search via Web of Science (www.webofknowledge.com) for articles containing conservation psychology in keywords, abstracts, or titles. We found 68 articles published in peer-reviewed journals from January 2003 (the year the field was described) and December 2016. Six of these (8.8%) related to energy and water conservation-topics generally considered within the broader field of environmental psychology. * To capture further relevant papers that did not contain the term conservation psychology, we used the root terms: biodivers * AND (psycholog * OR "behavi * change"). This returned 155 relevant articles, of which 141 were unique to the additional search. Of the total relevant articles from the 2 searches (n = 203) (Fig. 1), 18.1% (37) were published in leading conservation journals, Conservation Biology (14), Ecological Economics (8), Biological Conservation (7), Conservation Letters (4), and Society and Natural Resources (4). Over the last 13 years, these 5 journals have published 12,880 articles. Our results suggest that only 0.28% of those are related to psychology. Although there are likely additional terms that could be used to explore the conservation psychology literature, our results indicate that despite perceptions of growth in conservation psychology, behavioral research has not yet penetrated mainstream conservation science. Additionally, only 5 articles in our search came from environmental psychology journals, Environment and Behavior and Journal of Environmental Psychology, which equates to just 0.36% of their output during the same period.Our results reveal that conservation psychology has not become an umbrella term for interdisciplinary research that integrates biodiversity conservation and psychology; although the number...