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Incorporating pyrodiversity into wildlife habitat assessments for rapid post-fire management: A woodpecker case study

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Mar 28, 2023 version files 2.21 MB

Abstract

Spatial and temporal variation in fire characteristics – termed pyrodiversity – are increasingly recognized as important factors that structure wildlife communities in fire-prone ecosystems, yet there have been few attempts to incorporate pyrodiversity or post-fire habitat dynamics into predictive models of animal distributions and abundance to support post-fire management. We use the black-backed woodpecker – a species associated with burned forests – as a case study to demonstrate a pathway for incorporating pyrodiversity into wildlife habitat assessments for adaptive management. Employing monitoring data (2009–2019) from post-fire forests in California, we developed three competing occupancy models describing different hypotheses for habitat associations: (1) a static model representing an existing management tool, (2) a temporal model accounting for years since fire, and (3) a temporal-landscape model which additionally incorporates emerging evidence from field studies about the influence of pyrodiversity. Evaluating predictive ability, we found superior support for the temporal-landscape model, which showed a positive relationship between occupancy and pyrodiversity and interactions between habitat associations and years since fire. We incorporated this new temporal-landscape model into an RShiny application to make this decision-support tool accessible to decision-makers: https://birdpop.org/pages/bbwoPredPostFireDist.php.