Brodie, J. F. et al. Landscape-scale benefits of protected areas for tropical biodiversity. Nature 620, 807–812 (2023).
Ferraro, P. J. Counterfactual thinking and impact evaluation in environmental policy. New Dir. Eval. 2009, 75–84 (2009).
Baylis, K. et al. Mainstreaming impact evaluation in nature conservation. Conserv. Lett. 9, 58–64 (2016).
Ferraro, P. J., Sanchirico, J. N. & Smith, M. D. Causal inference in coupled human and natural systems. Proc. Natl Acad. Sci. USA 116, 5311–5318 (2019).
Gelman, A. & Hill, J. Data Analysis Using Regression and Multilevel/Hierarchical Models (Analytical Methods for Social Research) (Cambridge Univ. Press, 2006).
Andam, K. S., Ferraro, P. J. & Hanauer, M. M. The effects of protected area systems on ecosystem restoration: a quasi-experimental design to estimate the impact of Costa Rica’s protected area system on forest regrowth. Conserv. Lett. 6, 317–323 (2013).
Greenland, S., Pearl, J. & Robins, J. M. Causal diagrams for epidemiologic research. Epidemiology 10, 37–48 (1999).
Loucks, C., Ricketts, T. H., Naidoo, R., Lamoreux, J. & Hoekstra, J. Explaining the global pattern of protected area coverage: relative importance of vertebrate biodiversity, human activities and agricultural suitability. J. Biogeogr. 35, 1337–1348 (2008).
Gray, C. L. et al. Local biodiversity is higher inside than outside terrestrial protected areas worldwide. Nat. Commun. 7, 12306 (2016).
Coetzee, B. W. T., Gaston, K. J. & Chown, S. L. Local scale comparisons of biodiversity as a test for global protected area ecological performance: a meta-analysis. PLoS ONE 9, e105824 (2014).
Graves, G. R. & Rahbek, C. Source pool geometry and the assembly of continental avifaunas. Proc. Natl Acad. Sci. USA 102, 7871–7876 (2005).
Butchart, S. H. M. et al. Shortfalls and solutions for meeting national and global protected area targets. Conserv. Lett. 8, 329–337 (2015).
Díaz, S. et al. Pervasive human-driven decline of life on Earth points to the need for transformative change. Science 366, eaax3100 (2019).