NDLI: Factors controlling leaf litter breakdown in Amazonian streams

Content Provider	Springer Nature Link
Author	Gonçalves, José F. Couceiro, Sheyla R. M. Rezende, Renan S. Martins, Renato T. Ottoni Boldrini, Bianca M. P. Campos, Claudimir M. Silva, Jeferson O. Hamada, Neusa
Copyright Year	2016
Abstract	Our objective was to assess the relative importance of leaf litter quality, and the microbial and aquatic invertebrate communities involved in leaf litter breakdown in Amazonian streams. We test the hypothesis that leaf litter quality is the driving force of leaf breakdown rates, rather than the microbial or invertebrate community, independent of stream characteristics. We incubated 3 g of Eucalyptus camaldulensis (EC), Baccharis platypoda, Symphonia globulifera, Mabea speciosa (MS), and Eperua duckeana (ED) leaves in five streams for 75, 56, 46, 26, 14, or 7 days. In all of the streams, leaf litter breakdown was higher for EC and lower in ED. This result may be related to different chemical characteristics among the five studied species. We observed higher frequency of shredders in MS and stream 4, and scrapers in streams 1 and 2. The concentration of ergosterol was higher in MS and lower in EC when adenosine triphosphate differed significantly among streams. Our data indicated that leaf litter quality (chemical and structural components) is a main factor affecting leaf breakdown in Amazonian streams.
Starting Page	195
Ending Page	207
Page Count	13
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	792
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-12-05
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemical composition Decomposition Riparian vegetation Microbial biomass Invertebrates Freshwater & Marine Ecology Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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