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dc.contributor.author
Kirschner, Dominik
dc.contributor.author
Zhang, Yan
dc.contributor.author
Zhong, Wenjun
dc.contributor.author
Zhang, Xiaowei
dc.contributor.author
Pellissier, Loïc
dc.contributor.author
Altermatt, Florian
dc.date.accessioned
2024-02-05T13:33:30Z
dc.date.available
2024-01-30T09:22:24Z
dc.date.available
2024-02-05T13:33:30Z
dc.date.issued
2023-11
dc.identifier.issn
2637-4943
dc.identifier.other
10.1002/edn3.480
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/656455
dc.identifier.doi
10.3929/ethz-b-000656455
dc.description.abstract
In river systems worldwide, land cover changes have been identified as major drivers of biodiversity change. Quantifying how terrestrial land cover impacts riverine diversity requires local biodiversity assessments. In this study, we investigated the association of terrestrial land cover and the corresponding riverine fish species communities using eDNA-metabarcoding in the Chinese Shaying River basin. This basin is home to about 37 million people and is largely dominated by a mix of intense agriculture and urban areas, creating a relatively homogeneous, intensely used landscape. We investigated whether the homogeneous landscape is mirrored in the composition and structure of fish communities in the river network. We sampled eDNA in spring and fall of 2018, amplified it with a primer designed for local fish species and used operational taxonomic units (OTU) assigned to fish as proxy for diversity. Furthermore, we used redundancy analysis, general linear models, and distance decay curves to assess the effects of land cover on fish communities. We found that the Shaying River showed relatively high basin-wide richness (63 OTU) and seasonal differences in local richness, but limited community differentiation. Variations in alpha- and beta-diversity, measured as local OTU richness and pairwise distance-decay across the basin were low. Redundancy analysis showed only a weak association between observed aquatic communities and their terrestrial surroundings in a 10 km buffer upstream. The lack of community differentiation assessed by eDNA metabarcoding reflects the homogeneous and intense land-use in this basin.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/4.0/
dc.subject
eDNA
en_US
dc.subject
fish diversity patterns
en_US
dc.subject
land cover
en_US
dc.subject
metabarcoding
en_US
dc.subject
OTU
en_US
dc.subject
riverine diversity
en_US
dc.title
Homogeneity in terrestrial land cover is reflected in fish diversity patterns in a Chinese river system
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 4.0 International
dc.date.published
2023-11-20
ethz.journal.title
Environmental DNA
ethz.journal.volume
5
en_US
ethz.journal.issue
6
en_US
ethz.pages.start
1679
en_US
ethz.pages.end
1690
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.scopus
ethz.publication.status
published
en_US
ethz.date.deposited
2024-01-30T09:22:25Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2024-02-05T13:33:31Z
ethz.rosetta.lastUpdated
2024-02-05T13:33:31Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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