What do you mean, ‘megafire’?
| العنوان: | What do you mean, ‘megafire’? |
|---|---|
| المؤلفون: | Grant D. Linley, Chris J. Jolly, Tim S. Doherty, William L. Geary, Dolors Armenteras, Claire M. Belcher, Rebecca Bliege Bird, Andrea Duane, Michael‐Shawn Fletcher, Melisa A. Giorgis, Angie Haslem, Gavin M. Jones, Luke T. Kelly, Calvin K. F. Lee, Rachael H. Nolan, Catherine L. Parr, Juli G. Pausas, Jodi N. Price, Adrián Regos, Euan G. Ritchie, Julien Ruffault, Grant J. Williamson, Qianhan Wu, Dale G. Nimmo, Benjamin Poulter |
| المساهمون: | Australian Wildlife Society, World Wildlife Fund |
| المصدر: | GLOBAL ECOLOGY AND BIOGEOGRAPHY |
| بيانات النشر: | John Wiley & Sons, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Global and Planetary Change, Ecology, Extreme wildfire event, Anthropocene, Catastrophic fire, Wildfire disaster, Climate change, Mega-fire, Pyrocene, Ecology, Evolution, Behavior and Systematics |
| الوصف: | [Background]: ‘Megafire’ is an emerging concept commonly used to describe fires that are extreme in terms of size, behaviour, and/or impacts, but the term’s meaning remains ambiguous. [Approach]: We sought to resolve ambiguity surrounding the meaning of ‘megafire’ by conducting a structured review of the use and definition of the term in several languages in the peer-reviewed scientific literature. We collated definitions and descriptions of megafire and identified criteria frequently invoked to define megafire. We recorded the size and location of megafires and mapped them to reveal global variation in the size of fires described as megafires. [Results]: We identified 109 studies that define the term ‘megafire’ or identify a megafire, with the term first appearing in the peer-reviewed literature in 2005. Seventy-one (~65%) of these studies attempted to describe or define the term. There was considerable variability in the criteria used to define megafire, although definitions of megafire based on fire size were most common. Megafire size thresholds varied geographically from > 100–100,000 ha, with fires > 10,000 ha the most common size threshold (41%, 18/44 studies). Definitions of megafire were most common from studies led by authors from North America (52%, 37/71). We recorded 137 instances from 84 studies where fires were reported as megafires, the vast majority (94%, 129/137) of which exceed 10,000 ha in size. Megafires occurred in a range of biomes, but were most frequently described in forested biomes (112/137, 82%), and usually described single ignition fires (59% 81/137). [Conclusion]: As Earth’s climate and ecosystems change, it is important that scientists can communicate trends in the occurrence of larger and more extreme fires with clarity. To overcome ambiguity, we suggest a definition of megafire as fires > 10,000 ha arising from single or multiple related ignition events. We introduce two additional terms – gigafire (> 100,000 ha) and terafire (> 1,000,000 ha) – for fires of an even larger scale than megafires. Threatened Species Recovery Hub; NSW Bushfire Risk Management Research Hub; Australian Wildlife Society; World Wildlife Fund |
| وصف الملف: | application/pdf; application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| تدمد: | 1466-8238 1466-822X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69ad641871e0440173b3bad55b17af2f http://hdl.handle.net/10261/287938 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....69ad641871e0440173b3bad55b17af2f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14668238 1466822X |
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