Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/281617
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Abrupt changes in the composition and function of fungal communities along an environmental gradient in the high Arctic |
Autor: | Grau, Oriol CSIC ORCID; Geml, József; Pérez-Haase, A. CSIC ORCID ; Ninot, Josep M.; Semenova-Nelsen, Tatiana A.; Peñuelas, Josep CSIC ORCID | Palabras clave: | Arctic Community ecology Environmental changes Functional ecology Fungal ecology Fungi,Greenland |
Fecha de publicación: | sep-2017 | Editor: | Wiley-Blackwell | Citación: | Molecular Ecology 26(18): 4798-4810 (2017) | Resumen: | Fungi play a key role in soil–plant interactions, nutrient cycling and carbon flow and are essential for the functioning of arctic terrestrial ecosystems. Some studies have shown that the composition of fungal communities is highly sensitive to variations in environmental conditions, but little is known about how the conditions control the role of fungal communities (i.e., their ecosystem function). We used DNA metabarcoding to compare taxonomic and functional composition of fungal communities along a gradient of environmental severity in Northeast Greenland. We analysed soil samples from fell fields, heaths and snowbeds, three habitats with very contrasting abiotic conditions. We also assessed within-habitat differences by comparing three widespread microhabitats (patches with high cover of Dryas, Salix, or bare soil). The data suggest that, along the sampled mesotopographic gradient, the greatest differences in both fungal richness and community composition are observed amongst habitats, while the effect of microhabitat is weaker, although still significant. Furthermore, we found that richness and community composition of fungi are shaped primarily by abiotic factors and to a lesser, though still significant extent, by floristic composition. Along this mesotopographic gradient, environmental severity is strongly correlated with richness in all fungal functional groups: positively in saprotrophic, pathogenic and lichenised fungi, and negatively in ectomycorrhizal and root endophytic fungi. Our results suggest complex interactions amongst functional groups, possibly due to nutrient limitation or competitive exclusion, with potential implications on soil carbon stocks. These findings are important in the light of the environmental changes predicted for the Arctic. | Versión del editor: | http://dx.doi.org/10.1111/mec.14227 | URI: | http://hdl.handle.net/10261/281617 | DOI: | 10.1111/mec.14227 | Identificadores: | doi: 10.1111/mec.14227 e-issn: 1365-294X issn: 0962-1083 |
Referencias: | Grau, Oriol; Geml, József; Pérez-Haase, A.; Ninot, Josep M.; Semenova-Nelsen, Tatiana A.; Peñuelas, Josep (2017): Data from: Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic [Dataset]; Dryad; Version 1; https://doi.org/10.5061/dryad.n82g9 |
Aparece en las colecciones: | (CREAF) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
37
checked on 07-may-2024
WEB OF SCIENCETM
Citations
31
checked on 23-feb-2024
Page view(s)
41
checked on 06-may-2024
Download(s)
12
checked on 06-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.