English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/244140
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Loss of Key Riparian Plant SpeciesImpacts Stream Ecosystem Functioning

AuthorsAlonso, Alberto; Pérez, Javier; Monroy, Silvia; López-Rojo, Naiara; Basaguren, Ana; Bosch, Jaime CSIC ORCID ; Boyero, Luz CSIC ORCID
KeywordsLitter decomposition
Alder
Non-random species loss
Aquatic hyphomycetes
Detritivores
Macroinvertebrates
Net diversity effect
Plant diversity
Issue Date28-Jan-2021
PublisherSpringer Nature
CitationEcosystems (2021)
AbstractLeaf litter of alder (Alnus glutinosa) is a key resource to detrital stream food webs. Due to its high quality and palatability, it is readily colonised by microorganisms and consumed by detritivores, contributing significantly to carbon and nutrient cycling and to ecosystem functioning. Given that this species has declined due to the spread of the pathogen Phytophthora alni, we investigated how its loss would alter leaf litter decomposition and associated stream assemblages of aquatic hyphomycetes and invertebrates, in a field experiment conducted in three streams. We compared litter mixtures containing alder plus three other species (Corylus avellana, Quercus robur and Salix atrocinerea; that is, 4-species treatments) with mixtures that excluded alder (3-species treatments) and all the monocultures (1-species treatments). The loss of alder reduced decomposition rates, despite the existence of an overall negative diversity effect after 3 weeks of exposure (that is, monocultures decomposed faster than mixtures) and no diversity effect after 6 weeks. Aquatic hyphomycete and detritivore assemblage structure in the mixture without alder differed from those of the mixture with alder and the monocultures, and the former had lower fungal sporulation rate and taxon richness. Our results suggest that alder loss from the riparian vegetation can significantly slow down the processing of organic matter in streams and produce shifts in stream assemblages, with potential consequences on overall ecosystem functioning. We highlight the importance of assessing the ecological consequences of losing single species, particularly those especially vulnerable to stressors, to complement the multiple studies that have assessed the effects of random species loss.
Publisher version (URL)https://link.springer.com/article/10.1007/s10021-020-00592-7
URIhttp://hdl.handle.net/10261/244140
DOIhttps://doi.org/10.1007/s10021-020-00592-7
ISSN1432-9840
Appears in Collections:(MNCN) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.