Use of theories of human action in recent conservation research.

Social sciences are increasingly recognized as useful for reorienting human action toward environmental conservation. Fully realizing the social sciences' potential requires applying social science methods to conservation challenges and drawing from and building on human action theories from across the social sciences to better understand how and when actions can realize positive social and environmental priorities. We conducted an in-depth analysis of a bounded, systematically selected set of conservation science peer-reviewed articles to investigate the prevalence of social science theories of human action in conservation research and whether these theories represent the richness of the social science literature related to human action. We censused papers published in 2023 in Conservation Biology, Conservation Letters, and Biological Conservation and assessed each paper's geographic scope, social science engagement, whether it investigated human action, and weather it explicitly used human action theories and underlying metatheory (i.e., ways of understanding the world and how one gains knowledge of it). Results across 533 papers showed that 32% of papers incorporated social science and that 64% of these social science papers investigated human action. Twenty-seven percent of these human action papers used explicit human action theories. The theory of planned behavior was the most used explicit theory (17% of action theory papers). The independent self metatheory was the most prevalent; it underlies the theory of planned behavior and focuses on understanding how personal attributes, such as values, shape intentional individual behavior. The prevalence of a few theories and metatheories in these dominant conservation journals may indicate a limited capacity for conservation research to build on previous research, avoid redundant reinvention, and unmask novel applications of social science theory that could reorient human action toward conservation. Human action theory use in conservation might be broadened by changing attitudes on the importance of human action theories for research; incorporating social theory in conservation education; asking reviewers to comment on theory usage and mandating theory reporting; creating spaces for social scientists and theory scholars; providing social scientists and theorists with decision-making power in organizations; rewarding theory use; recognizing feedback loops among theory use; and replacing colonial and capitalistic approaches to conservation.