Drivers of woody dominance across global drylands - Vulnérabilité Ecologique et Conservation
Article Dans Une Revue Science Advances Année : 2024

Drivers of woody dominance across global drylands

Lucio Biancari , Martín Aguiar , David Eldridge , Gastón Oñatibia , Yoann Le Bagousse-Pinguet (1) , Hugo Saiz , Nicolas Gross (2) , Amy Austin , Victoria Ochoa , Beatriz Gozalo , Sergio Asensio , Emilio Guirado , Enrique Valencia , Miguel Berdugo , César Plaza , Jaime Martínez-Valderrama , Betty Mendoza , Miguel García-Gómez , Mehdi Abedi , Rodrigo Ahumada , Julio Alcántara , Fateh Amghar , José Anadón , Valeria Aramayo , Tulio Arredondo , Maaike Bader , Khadijeh Bahalkeh , Farah Ben Salem , Niels Blaum , Bazartseren Boldgiv , Matthew Bowker , Cristina Branquinho , Chongfeng Bu , Batbold Byambatsogt , Dianela Calvo , Andrea Castillo Monroy , Helena Castro , Patricio Castro-Quezada , Roukaya Chibani , Abel Conceição , Courtney Currier , David Donoso , Andrew Dougill , Hamid Ejtehadi , Carlos Espinosa , Alex Fajardo , Mohammad Farzam , Daniela Ferrante , Lauchlan Fraser , Juan Gaitán , Laureano Gherardi , Elizabeth Gusmán-Montalván , Rosa Hernández-Hernández , Norbert Hölzel , Elisabeth Huber-Sannwald , Frederic Hughes , Oswaldo Jadán , Florian Jeltsch , Anke Jentsch , Mengchen Ju , Kudzai Kaseke , Liana Kindermann , Melanie Köbel , Peter Le Roux , Pierre Liancourt , Anja Linstädter , Jushan Liu , Michelle Louw , Gillian Maggs-Kölling , Oumarou Malam Issa (3) , Eugene Marais , Pierre Margerie (4) , João Vitor S. Messeder , Juan Mora , Gerardo Moreno , Seth Munson , Gabriel Oliva , Yolanda Pueyo , R. Emiliano Quiroga , Sasha Reed , Pedro Rey , Alexandra Rodríguez , Laura Rodríguez , Víctor Rolo , Jan Ruppert , Osvaldo Sala , Ayman Salah , Ilan Stavi , Colton Stephens , Anthony Swemmer , Alberto Teixido , Andrew Thomas , Heather Throop , Katja Tielbörger , Samantha Travers , Liesbeth van den Brink , Viktoria Wagner , Wanyoike Wamiti , Deli Wang , Lixin Wang , Peter Wolff , Laura Yahdjian , Eli Zaady , Fernando Maestre
Lucio Biancari
Martín Aguiar
David Eldridge
Gastón Oñatibia
Hugo Saiz
Amy Austin
Victoria Ochoa
Beatriz Gozalo
Sergio Asensio
Emilio Guirado
Enrique Valencia
Miguel Berdugo
César Plaza
Jaime Martínez-Valderrama
Betty Mendoza
Miguel García-Gómez
Mehdi Abedi
Rodrigo Ahumada
Julio Alcántara
Fateh Amghar
José Anadón
Valeria Aramayo
Tulio Arredondo
Maaike Bader
Khadijeh Bahalkeh
Farah Ben Salem
Niels Blaum
Bazartseren Boldgiv
Matthew Bowker
Cristina Branquinho
Chongfeng Bu
Batbold Byambatsogt
Dianela Calvo
Andrea Castillo Monroy
  • Fonction : Auteur
Helena Castro
Patricio Castro-Quezada
Roukaya Chibani
  • Fonction : Auteur
Abel Conceição
Courtney Currier
David Donoso
Andrew Dougill
Hamid Ejtehadi
Carlos Espinosa
Alex Fajardo
Mohammad Farzam
Daniela Ferrante
Lauchlan Fraser
Juan Gaitán
Laureano Gherardi
Elizabeth Gusmán-Montalván
Rosa Hernández-Hernández
Norbert Hölzel
Elisabeth Huber-Sannwald
Frederic Hughes
Oswaldo Jadán
Florian Jeltsch
Anke Jentsch
Mengchen Ju
Kudzai Kaseke
Liana Kindermann
Melanie Köbel
Peter Le Roux
Pierre Liancourt
Anja Linstädter
Jushan Liu
Michelle Louw
Gillian Maggs-Kölling
Eugene Marais
João Vitor S. Messeder
Juan Mora
Gerardo Moreno
Seth Munson
Gabriel Oliva
Yolanda Pueyo
R. Emiliano Quiroga
Sasha Reed
Pedro Rey
Alexandra Rodríguez
Laura Rodríguez
Víctor Rolo
Jan Ruppert
Osvaldo Sala
Ayman Salah
Ilan Stavi
Colton Stephens
Anthony Swemmer
Alberto Teixido
Andrew Thomas
Heather Throop
Katja Tielbörger
  • Fonction : Auteur
Samantha Travers
Liesbeth van den Brink
Viktoria Wagner
Wanyoike Wamiti
Deli Wang
Lixin Wang
Peter Wolff
Laura Yahdjian
Eli Zaady
Fernando Maestre

Résumé

Increases in the abundance of woody species have been reported to affect the provisioning of ecosystem services in drylands worldwide. However, it is virtually unknown how multiple biotic and abiotic drivers, such as climate, grazing, and fire, interact to determine woody dominance across global drylands. We conducted a standardized field survey in 304 plots across 25 countries to assess how climatic features, soil properties, grazing, and fire affect woody dominance in dryland rangelands. Precipitation, temperature, and grazing were key determinants of tree and shrub dominance. The effects of grazing were determined not solely by grazing pressure but also by the dominant livestock species. Interactions between soil, climate, and grazing and differences in responses to these factors between trees and shrubs were key to understanding changes in woody dominance. Our findings suggest that projected changes in climate and grazing pressure may increase woody dominance in drylands, altering their structure and functioning.

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hal-04735428 , version 1 (14-10-2024)

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Lucio Biancari, Martín Aguiar, David Eldridge, Gastón Oñatibia, Yoann Le Bagousse-Pinguet, et al.. Drivers of woody dominance across global drylands. Science Advances , 2024, 10 (41), ⟨10.1126/sciadv.adn6007⟩. ⟨hal-04735428⟩
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