Dieback of Calluna vulgaris in a Coastal Heathland After the 2018 Extreme Drought
Rattachement africain : de, es. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
ABSTRACT Aims Central and northern Europe experienced extremely dry conditions in 2018, which caused dieback events in many ecosystems, including coastal heathlands. Our aim was to determine the causes of the varying drought responses observed in Calluna vulgaris on the Baltic island of Hiddensee after this extreme drought. Location Island of Hiddensee, Baltic Sea, NE Germany. Methods We assessed heathland community damage in autumn 2018 and 2019 with drone‐based remote sensing. In addition, we measured water table depths and excavated root samples of C. vulgaris. In 2019, we sampled neighboring C. vulgaris individuals showing contrasting vitality statuses (dead, weakened or healthy), measured their height and canopy width, and prepared cross‐sections of the main stem at the root collar or soil surface level to count and measure their xylem rings. We also assessed climate‐growth correlations in these individuals. Results An 8.0% of all heathland plants showed damage in 2018, while this value decreased to 6.6% in 2019. Only 18% of the plants showing damage in 2018 recovered in 2019. Plant damage was positively related to elevation. Groundwater measurements showed that water table depth dropped below C. vulgaris rooting depth during 2018 and 2019. Healthy plants were taller and had a larger crown area than neighboring weakened and dead individuals, but they did not differ in age nor in previous years' growth. C. vulgaris growth was positively correlated with June and July precipitation. Conclusions Our study evidences the negative impacts of extreme droughts on C. vulgaris in coastal heathlands, especially in individuals growing in elevated areas and/or relatively small‐sized, and emphasizes the need for adapting heathland management planning accordingly.
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, mais le titre doit être comparé manuellement.
- Titre Crossref
- Dieback of <i>Calluna vulgaris</i> in a Coastal Heathland After the 2018 Extreme Drought
- Date Crossref
- 01/03/2025
- Éditeur
- Wiley
- Type
- journal-article
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
-
Universität Greifswald pays non établi dans la noticeUniversité ou école supérieure
-
Centre for Research on Ecology and Forestry Applications pays non établi dans la noticeStructure de recherche
-
Institut de Biologia Evolutiva pays non établi dans la noticeStructure de recherche
-
Universitat de Barcelona pays non établi dans la noticeUniversité ou école supérieure
-
CREAF Cerdanyola del Vallès Spain pays non établi dans la noticeInstitution
-
Faculty of Biology University of Barcelona Barcelona Spain Department of Evolutionary Biology pays non établi dans la noticeUniversité ou école supérieure
-
Institute of Botany and Landscape Ecology University of Greifswald Greifswald Germany pays non établi dans la noticeUniversité ou école supérieure
-
Biological Station of Hiddensee University of Greifswald Kloster Germany pays non établi dans la noticeUniversité ou école supérieure
Universität Greifswald, Centre for Research on Ecology and Forestry Applications et Institut de Biologia Evolutiva, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.