Spruce beetle outbreak was not driven by drought stress: evidence from a tree-ring iso-demographic approach indicate temperatures were more important
Rattachement africain : cz, us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Climate change has amplified eruptive bark beetle outbreaks over recent decades. However, for projecting future bark beetle dynamics there is a critical lack of evidence to differentiate how outbreaks have been promoted by direct effects of warmer temperatures on beetle life cycles vs indirect effects of drought on host susceptibility. To diagnose whether drought-induced host-weakening was important to beetle attack success we used tree death date demography during a spruce beetle outbreak to differentiate early and late-dying trees and then determined whether early-dying trees had greater sensitivity of tree-ring carbon isotope discrimination to drought. Drought-sensitivity did not differ among early- vs late-dying trees, suggesting proposed links between spruce beetle outbreaks and drought primarily reflect warming- amplified beetle life cycles rather than drought-weakened host defenses. Additional iso-demographic studies are needed to diagnose the role of direct vs indirect climate effects across wider regions and other species.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Spruce beetle outbreak was not driven by drought stress: evidence from a tree-ring iso-demographic approach indicate temperatures were more important
- Date Crossref
- 26/03/2020
- Éditeur
- Wiley
- Type
- posted-content
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Czech University of Life Sciences Prague pays non établi dans la noticeUniversité ou école supérieure
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State University of New York pays non établi dans la noticeUniversité ou école supérieure
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SUNY College of Environmental Science and Forestry pays non établi dans la noticeUniversité ou école supérieure
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York University pays non établi dans la noticeUniversité ou école supérieure
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Utah State University pays non établi dans la noticeUniversité ou école supérieure
Czech University of Life Sciences Prague, State University of New York et SUNY College of Environmental Science and Forestry, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.