Show simple item record

dc.contributor.authorZhou, Xiongdong
dc.contributor.authorXu, Mengzhen
dc.contributor.authorWang, Zhaoyin
dc.contributor.authorYu, Bofu
dc.contributor.authorFu, Xudong
dc.contributor.authorLiu, Wei
dc.contributor.authorSun, Luo
dc.contributor.authorShao, Xuejun
dc.date.accessioned2020-03-31T22:48:58Z
dc.date.available2020-03-31T22:48:58Z
dc.date.issued2019
dc.identifier.issn2161-9549
dc.identifier.doi10.1086/706040
dc.identifier.urihttp://hdl.handle.net/10072/392833
dc.description.abstractNatural barriers formed by avalanche deposits, landslides, and debris flows are commonly distributed along deep incised rivers where they block river channels and create diverse river habitats. However, little is known about the effects these naturally-occurring features have on the diversity of macroinvertebrate assemblages. We, therefore, conducted a field study to assess how α- and β-diversity of stream macroinvertebrates were influenced by these deposits. The Nujiang River (upper Salween River) basin in China has more than 200 debris-flow deposits in the 300-km long Grand Canyon reach. We assessed differences in environmental variables and macroinvertebrate assemblages among 5 habitat types, including portions of the main channel and tributaries without these deposits and 3 other habitat types associated with debris deposits. We calculated α-diversity for each habitat type as individual-based rarefied richness and β-diversity among sampled patches within each habitat type with the Whittaker Index. Generally, patches within the debris-flow deposits had lower α-diversity, density, and biomass compared with patches in the non-deposit reaches. These results indicate that the different habitat types in the debris-flow reaches had markedly different abiotic and biotic conditions than the non-deposit main channel reaches and tributaries. However, patches in the debris-flow deposits had higher β-diversity than non-deposit reaches. By creating diverse habitat types, the debris-flow deposits enlarged the environmental gradients for macroinvertebrate assemblages, which increased regional aquatic biodiversity.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherUniversity of Chicago Press
dc.relation.ispartofpagefrom713
dc.relation.ispartofpageto724
dc.relation.ispartofissue4
dc.relation.ispartofjournalFreshwater Science
dc.relation.ispartofvolume38
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchOther Biological Sciences
dc.subject.fieldofresearchcode0602
dc.subject.fieldofresearchcode0699
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsMarine & Freshwater Biology
dc.subject.keywordsEnvironmental Sciences & Ecology
dc.titleDebris-flow deposits on a major river influence aquatic habitats and benthic macroinvertebrate assemblages
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationZhou, X; Xu, M; Wang, Z; Yu, B; Fu, X; Liu, W; Sun, L; Shao, X, Debris-flow deposits on a major river influence aquatic habitats and benthic macroinvertebrate assemblages, Freshwater Science, 2019, 38 (4), pp. 713-724
dc.date.updated2020-03-31T22:45:15Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 The Society for Freshwater Science. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorYu, Bofu


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record