Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/195872
COMPARTIR / EXPORTAR:
logo share SHARE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Temperature drives local contributions to beta diversity in mountain streams: Stochastic and deterministic processes

AutorWang, Jianjun; Legendre, Pierre; Soininen, Janne; Yeh, Chih-Fu; Graham, Emily B.; Stegen , James; Casamayor, Emilio O. CSIC ORCID ; Zhou, Jizhong; Shen, Ji; Pan, Feiyan
Palabras claveMacroinvertebrates
Streams
Bacteria
Beta diversity
Diatoms
Elevational gradient
Fecha de publicación2019
EditorJohn Wiley & Sons
CitaciónGlobal Ecology and Biogeography : doi:10.1111/geb.13035 (2019)
ResumenAim: Community variation (i.e. beta diversity) along geographical gradients is of substantial interest in ecology and biodiversity reserves in the face of global changes. However, the generality in beta diversity patterns and underlying processes remains less studied across trophic levels and geographical regions. We documented beta diversity patterns and underlying ecological processes of stream bacteria, diatoms and macroinvertebrates along six elevational gradients. Locations: Asia and Europe. Methods: We examined stream communities using molecular and morphological methods. We characterised community uniqueness with local contributions to beta diversity (LCBD), and investigated the drivers of its geographic patterns using Mid- Domain Effect (MDE), coenocline simulation, Raup-Crick null model approach, and through comparisons to environmental factors. MDE is a stochastic model by considering species elevational range, while coenocline simulation is a deterministic model by considering species niche optima and tolerance. The null model provides possible underlying mechanisms of community assembly with the degree to which deterministic processes create communities deviating from those of null expectations. Results: Across all taxa, we revealed a general U-shaped LCBD-elevation relationship, suggesting higher uniqueness of community composition at both elevational ends. This pattern was confirmed and could be explained by both stochastic and deterministic models, that is, MDE and coenocline simulation, respectively, and was supported by the dominance of species replacement. Temperature was the main environmental factor underlying elevational patterns in LCBD. The generalists with broad niche breadths were key in maintaining community uniqueness, and the higher relative importance of deterministic processes resulted in stronger U-shaped patterns regardless of taxonomic group. Conclusions: Our synthesis across both mountains and taxonomic groups clearly shows that there are consistent elevational patterns in LCBD among taxonomic groups, and that these patterns are explained by similar ecological mechanisms, producing a more complete picture for understanding and bridging the spatial variation in biodiversity under changing climate.
DescripciónEste artículo contiene 13 páginas, 5 figuras.
Versión del editorhttps://doi.org/10.1111/geb.13035
URIhttp://hdl.handle.net/10261/195872
ISSN1466-822X
E-ISSN1466-8238
Aparece en las colecciones: (CEAB) Artículos

Mostrar el registro completo

CORE Recommender

Page view(s)

261
checked on 18-mar-2024

Google ScholarTM

Check


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.