Forest and woodland replacement patterns following drought-related mortality

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Batllori , E , Lloret , F , Aakala , T , Anderegg , W R L , Aynekulu , E , Bendixsen , D P , Bentouati , A , Bigler , C , Burk , C J , Camarero , J J , Colangelo , M , Coop , J D , Fensham , R , Floyd , M L , Galiano , L , Ganey , J L , Gonzalez , P , Jacobsen , A L , Kane , J M , Kitzberger , T , Linares , J C , Marchetti , S B , Matusick , G , Michaelian , M , Navarro-Cerrillo , R M , Pratt , R B , Redmond , M D , Rigling , A , Ripullone , F , Sanguesa-Barreda , G , Sasal , Y , Saura-Mas , S , Suarez , M L , Veblen , T T , Vila-Cabrera , A , Vincke , C & Ben Zeeman 2020 , ' Forest and woodland replacement patterns following drought-related mortality ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 117 , no. 47 , pp. 29720-29729 . https://doi.org/10.1073/pnas.2002314117

Title: Forest and woodland replacement patterns following drought-related mortality
Author: Batllori, Enric; Lloret, Francisco; Aakala, Tuomas; Anderegg, William R. L.; Aynekulu, Ermias; Bendixsen, Devin P.; Bentouati, Abdallah; Bigler, Christof; Burk, C. John; Camarero, J. Julio; Colangelo, Michele; Coop, Jonathan D.; Fensham, Roderick; Floyd, M. Lisa; Galiano, Lucia; Ganey, Joseph L.; Gonzalez, Patrick; Jacobsen, Anna L.; Kane, Jeffrey Michael; Kitzberger, Thomas; Linares, Juan C.; Marchetti, Suzanne B.; Matusick, George; Michaelian, Michael; Navarro-Cerrillo, Rafael M.; Pratt, Robert Brandon; Redmond, Miranda D.; Rigling, Andreas; Ripullone, Francesco; Sanguesa-Barreda, Gabriel; Sasal, Yamila; Saura-Mas, Sandra; Suarez, Maria Laura; Veblen, Thomas T.; Vila-Cabrera, Albert; Vincke, Caroline; Ben Zeeman
Contributor organization: Department of Forest Sciences
Boreal forest dynamics and biodiversity research group
Forest Ecology and Management
Date: 2020-11-24
Language: eng
Number of pages: 10
Belongs to series: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
DOI: https://doi.org/10.1073/pnas.2002314117
URI: http://hdl.handle.net/10138/324097
Abstract: Forest vulnerability to drought is expected to increase under anthropogenic climate change, and drought-induced mortality and community dynamics following drought have major ecological and societal impacts. Here, we show that tree mortality concomitant with drought has led to short-term (mean 5 y, range 1 to 23 y after mortality) vegetation-type conversion in multiple biomes across the world (131 sites). Self-replacement of the dominant tree species was only prevalent in 21% of the examined cases and forests and woodlands shifted to nonwoody vegetation in 10% of them. The ultimate temporal persistence of such changes remains unknown but, given the key role of biological legacies in long-term ecological succession, this emerging picture of postdrought ecological trajectories highlights the potential for major ecosystem reorganization in the coming decades. Community changes were less pronounced under wetter postmortality conditions. Replacement was also influenced by management intensity, and postdrought shrub dominance was higher when pathogens acted as codrivers of tree mortality. Early change in community composition indicates that forests dominated by mesic species generally shifted toward more xeric communities, with replacing tree and shrub species exhibiting drier bioclimatic optima and distribution ranges. However, shifts toward more mesic communities also occurred and multiple pathways of forest replacement were observed for some species. Drought characteristics, species-specific environmental preferences, plant traits, and ecosystem legacies govern post drought species turnover and subsequent ecological trajectories, with potential far-reaching implications for forest biodiversity and ecosystem services.
Subject: drought-induced mortality
forest dynamics
forest resilience
global tree mortality
climate change
MAXIMUM-LIKELIHOOD
RESEARCH FRONTIERS
VEGETATION SHIFTS
INDUCED TREE
ECOSYSTEM
DYNAMICS
FIRE
RESILIENCE
MANAGEMENT
REGRESSION
4112 Forestry
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: publishedVersion


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