Fire suppression makes wildfires more severe and accentuates impacts of climate change and fuel accumulation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 25, 2024

Abstract Fire suppression is the primary management response to wildfires in many areas globally. By removing less-extreme wildfires, this approach ensures that remaining burn under more extreme conditions. Here, we term “suppression bias” and use a simulation model highlight how bias fundamentally impacts wildfire activity, independent of fuel accumulation climate change. We illustrate attempting suppress all necessarily means fires will with severe less diverse ecological impacts, burned area increasing at faster rates than expected from or Over human lifespan, modeled exceed those change alone, suggesting may exert significant underappreciated influence on patterns fire Managing safely low moderate conditions thus critical tool address growing crisis.

Language: Английский

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Landscape fires disproportionally affect high conservation value temperate peatlands, meadows, and deciduous forests, but only under low moisture conditions

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 884, P. 163849 - 163849

Published: May 1, 2023

Language: Английский

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Canadian forests are more conducive to high-severity fires in recent decades

Science, Journal Year: 2025, Volume and Issue: 387(6729), P. 91 - 97

Published: Jan. 2, 2025

Canada has experienced more-intense and longer fire seasons with more-frequent uncontrollable wildfires over the past decades. However, effect of these changes remains unknown. This study identifies driving forces burn severity estimates its spatiotemporal variations in Canadian forests. Our results show that fuel aridity was most influential driver severity, summer months were more prone to severe burning, northern areas influenced by changing climate. About 6% (0.54 14.64%) modeled significant increases number days conducive high-severity burning during 1981 2020, which found 2001 2020 spring autumn. The extraordinary 2023 season demonstrated similar spatial patterns but more-widespread escalations severity.

Language: Английский

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Contemporary wildfires are more severe compared to the historical reference period in western US dry conifer forests

Forest Ecology and Management, Journal Year: 2023, Volume and Issue: 544, P. 121232 - 121232

Published: July 3, 2023

Language: Английский

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Climate change and California’s terrestrial biodiversity

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(32)

Published: July 29, 2024

In this review and synthesis, we argue that California is an important test case for the nation world because terrestrial biodiversity very high, present anticipated threats to from climate change other interacting stressors are severe, innovative approaches protecting in context of being developed tested. We first salient dimensions California's physical, biological, human diversity. Next, examine four facets threat their sustainability these posed by change: direct impacts, illustrated a new analysis shifting diversity hotspots plants; interactive effects involving invasive species, land-use change, stressors; impacts changing fire regimes; land-based renewable energy development. recent policy responses each areas, representing attempts better protect while advancing adaptation mitigation. conclude ambitious 30 × Initiative its efforts harmonize conservation with development areas progress. Adapting traditional suppression-oriented policies reality regimes area which much progress remains be made.

Language: Английский

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Drought legacy interacts with wildfire to alter soil microbial communities in a Mediterranean climate-type forest

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 170111 - 170111

Published: Jan. 15, 2024

Mediterranean forest ecosystems will be increasingly affected by hotter drought and more frequent severe wildfire events in the future. However, little is known about longer-term responses of these forests to multiple disturbances forests' capacity maintain ecosystem function. This particularly so for below-ground organisms, which have received less attention than those above-ground, despite their essential contributions We investigated rhizosphere microbial communities a resprouting Eucalyptus marginata forest, southwestern Australia, that had experienced four years previously, eight previously. Our aim was understand how are over trajectories wildfire, singularly, combination. Fungal bacterial DNA extracted from soil samples, amplified, subjected high throughput sequencing. Richness, diversity, composition, putative functional groups were then examined. found monotonic decrease fungal, but not bacterial, richness diversity with increasing disturbance greatest changes resulting combination wildfire. Overall fungal community composition reflected stronger effect fire drought, both produced number indicator taxa fungi, significant negative on abundance several groups. Key mycorrhizal saprotrophs pathogens at lower proportions sites plus Wildfire positive hydrogen nitrogen recyclers. positively correlated live tree height. These results suggest communities, particular key groups, highly responsive following drought. Thus, legacy past climate conditions such as can important mediating subsequent like

Language: Английский

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An ecosystem resilience index that integrates measures of vegetation function, structure, and composition

Ecological Indicators, Journal Year: 2025, Volume and Issue: 171, P. 113076 - 113076

Published: Feb. 1, 2025

Language: Английский

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Variation in hydraulic vulnerability of juvenile ponderosa pines in the southwestern United States

Journal of Forestry Research, Journal Year: 2025, Volume and Issue: 36(1)

Published: March 18, 2025

Language: Английский

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Surviving in Changing Forests: Abiotic Disturbance Legacy Effects on Arthropod Communities of Temperate Forests

Current Forestry Reports, Journal Year: 2023, Volume and Issue: 9(4), P. 189 - 218

Published: May 8, 2023

Language: Английский

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Review of wildfire modeling considering effects on land surfaces

Earth-Science Reviews, Journal Year: 2023, Volume and Issue: 245, P. 104569 - 104569

Published: Sept. 16, 2023

Language: Английский

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