{"paper_id":"030b5cde-2926-483e-b39e-85a2fcd2c989","body_text":"Drying spring accelerates transitions toward pyrogenic vegetation in eastern boreal North America | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Ecology Letters This is a preprint and has not been peer reviewed. Data may be preliminary. 4 February 2025 V1 Latest version Share on Drying spring accelerates transitions toward pyrogenic vegetation in eastern boreal North America Authors : Adam Ali 0000-0002-6927-6633 [email protected] , Dorian Gaboriau , Jonathan Lesven , Martim Girardin 0000-0003-0436-7486 , Cécile Remy , Dominique Arseneault , Guillaume deLafontaine , … Show All … , Victor Danneyrolles , Hugo Asselin , Fabio Gennaretti , Etienne Boucher , Pierre Grondin , Michelle Garneau 0000-0002-1956-9243 , Gabriel Magnan , Fréchette Bianca , Sylvie Gauthier , and Yves Bergeron 0000-0003-3707-3687 Show Fewer Authors Info & Affiliations https://doi.org/10.22541/au.173868023.30825689/v1 Published Ecology Letters Version of record Peer review timeline 564 views 324 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract not-yet-known not-yet-known not-yet-known unknown Ongoing climate change is increasing the flammability of vegetation, ensuing intensified fire episodes in the boreal forest of eastern North America. Fire activity of the last decades suggests that we are probably at a tipping point in terms of fire regimes, raising new questions about the impact of these fires on the biodiversity and structure of the boreal forest. By integrating a compelling paleo-dataset (charcoal, pollen, chironomids, testate amoebae) with model simulations of vapor pressure deficit (VPD) and plant-available soil water (ASW) spanning the last 8,000 years, we demonstrate that drier spring conditions over the past 4,000 years led to fewer but larger and more severe fire episodes, peaking during the last 250 years. This shift in the fire regime fostered a parallel rise in fire-prone conifer species across landscapes, notably Pinus banksiana Lamb. (jack pine). We infer that the predicted increase in VPD along with decrease in ASW triggered by climate change will alter the fire regime and will amplify the transition towards more pyrogenic vegetation within the boreal forest of eastern North America Supplementary Material File (ali et al.vf.pdf) Download 3.86 MB Information & Authors Information Version history V1 Version 1 04 February 2025 Peer review timeline Published Ecology Letters Version of Record 26 Jun 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Ecology Letters Keywords boreal forest climate change fire regime paleoecology pinus banksiana Authors Affiliations Adam Ali 0000-0002-6927-6633 [email protected] Institut des sciences de l'évolution de Montpellier View all articles by this author Dorian Gaboriau Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue View all articles by this author Jonathan Lesven Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue View all articles by this author Martim Girardin 0000-0003-0436-7486 Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre View all articles by this author Cécile Remy Universität Augsburg Alter Postweg 118 View all articles by this author Dominique Arseneault Universite du Quebec a Rimouski View all articles by this author Guillaume deLafontaine Universite du Quebec a Rimouski View all articles by this author Victor Danneyrolles Université du Québec à Chicoutimi département des sciences fondamentales View all articles by this author Hugo Asselin Universite du Quebec en Abitibi-Temiscamingue View all articles by this author Fabio Gennaretti Groupe de recherche en Écologie de la MRC-Abitibi (GREMA), Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue View all articles by this author Etienne Boucher Centre de recherche Geotop Research Centre, Université du Québec à Montréal (UQAM) View all articles by this author Pierre Grondin Ministère des Ressources naturelles et des Forêts, Direction de la recherche forestière View all articles by this author Michelle Garneau 0000-0002-1956-9243 Centre de recherche Geotop Research Centre, Université du Québec à Montréal (UQAM) View all articles by this author Gabriel Magnan Centre de recherche Geotop Research Centre, Université du Québec à Montréal (UQAM) View all articles by this author Fréchette Bianca Centre de recherche Geotop Research Centre, Université du Québec à Montréal (UQAM) View all articles by this author Sylvie Gauthier Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre View all articles by this author Yves Bergeron 0000-0003-3707-3687 Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue View all articles by this author Metrics & Citations Metrics Article Usage 564 views 324 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Adam Ali, Dorian Gaboriau, Jonathan Lesven, et al. Drying spring accelerates transitions toward pyrogenic vegetation in eastern boreal North America. Authorea . 04 February 2025. DOI: https://doi.org/10.22541/au.173868023.30825689/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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Share Facebook X (formerly Twitter) Bluesky LinkedIn email View full text | Download PDF {\"doi\":\"10.22541/au.173868023.30825689/v1\",\"type\":\"Article\"} Now Reading: Share Figures Tables Close figure viewer Back to article Figure title goes here Change zoom level Go to figure location within the article Download figure Toggle share panel Toggle share panel Share Toggle information panel Toggle information panel Go to previous graphic Go to next graphic Go to previous table Go to next table All figures All tables View all material View all material xrefBack.goTo xrefBack.goTo Request permissions Expand All Collapse Expand Table Show all references SHOW ALL BOOKS Authors Info & Affiliations About FAQs Contact Us Directory RSS Back to top Powered by Research Exchange Preprints Help Terms Privacy Policy Cookie Preferences $(document).ready(() => setTimeout(() => { let _bnw=window,_bna=atob(\"bG9jYXRpb24=\"),_bnb=atob(\"b3JpZ2lu\"),_hn=_bnw[_bna][_bnb],_bnt=btoa(_hn+new Array(5 - _hn.length % 4).join(\" \")); $.get(\"/resource/lodash?t=\"+_bnt); },4000)); (function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML=\"window.__CF$cv$params={r:'9ff50d3e280d1b23',t:'MTc3OTM4MTkyOA=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);\";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();","source_license":"CC-BY-4.0","license_restricted":false}