Text analysis tools for identification of emerging topics and research gaps in conservation science

Martin J. Westgate, Philip S. Barton, Jennifer C. Pierson, David B. Lindenmayer

Research output: Contribution to journalReview articlepeer-review

76 Citations (Scopus)


Keeping track of conceptual and methodological developments is a critical skill for research scientists, but this task is increasingly difficult due to the high rate of academic publication. As a crisis discipline, conservation science is particularly in need of tools that facilitate rapid yet insightful synthesis. We show how a common text-mining method (latent Dirichlet allocation, or topic modeling) and statistical tests familiar to ecologists (cluster analysis, regression, and network analysis) can be used to investigate trends and identify potential research gaps in the scientific literature. We tested these methods on the literature on ecological surrogates and indicators. Analysis of topic popularity within this corpus showed a strong emphasis on monitoring and management of fragmented ecosystems, while analysis of research gaps suggested a greater role for genetic surrogates and indicators. Our results show that automated text analysis methods need to be used with care, but can provide information that is complementary to that given by systematic reviews and meta-analyses, increasing scientists' capacity for research synthesis.

Original languageEnglish
Pages (from-to)1606-1614
Number of pages9
JournalConservation Biology
Issue number6
Publication statusPublished - 1 Dec 2015
Externally publishedYes


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