Abstract
Whilst the re-introduction of fire can contribute to biodiversity conservation in Fennoscandian forests, the effects on reindeer herding remain uncertain. To assess the short- and long-term effects of prescribed burning on lichen supply in a productive forest landscape, we developed a model simulating lichen biomass available for reindeer grazing, covering 300 years and 1500 pine stands, under different soil preparation scenarios, including different prescribed burning regimes and mechanical scarification. Our simulations revealed that burning 25–50% of yearly clear-cuts has the potential to stop, or even reverse, reindeer lichen decline at landscape scale after 70 years, greatly surpassing the short-term losses caused by burning. No burning or burning 5% of yearly clear-cuts, as required by the FSC certification, compounded the negative effects of fire suppression and scarification on lichen. Compared to the scenario with no soil preparation, all our simulations resulted in a continuous decrease of lichen supply in Lichen-type stands, indicating that any form of disturbance in these habitats can strongly limit future gains.
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Acknowledgements
We are grateful to Johannes Ackemo, Urban Bergsten, Jim Hedlund, Mikael Kuhmunen, Lars-Evert Nutti and Hans Winsa for participating in the workshop; to Cornelia Axelson for providing SNFI data; to two anonymous reviewers for their constructive comments and to Sees-editing Ltd for correcting the written English. This research was funded through the 2017–2018 Belmont Forum and BiodivERsA joint call for research proposals, under the BiodivScen ERA-Net COFUND programme, and the funding organizations of the FATE program: Agence Nationale de la Recherche (ANR)—ANR-18-EB14-0008), Academy of Finland (decision number 326323), Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—411410325, Formas (2018-02439), the National Science Foundation (1850949), the Natural Sciences and Engineering Research Council of Canada (NSERC), and the Research Council of Norway (296987).
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Conceptualization: SR and SC; Methodology: JP, SR and TS; Material preparation and data collection: JP; Formal analysis and investigation: JP, SR and TS; Writing and preparation of the original draft: SR and JP; Writing, reviewing, and editing of the manuscript: TS and SC.
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Roturier, S., Picard, J., Cogos, S. et al. Influence of prescribed burning on reindeer winter pastures at landscape scale in northern Sweden: A modelling approach. Ambio 52, 453–464 (2023). https://doi.org/10.1007/s13280-022-01805-0
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DOI: https://doi.org/10.1007/s13280-022-01805-0