Título:	Leaf litter quality drives the feeding by invertebrate shredders in tropical streams
Autor(es):	Sena, Guilherme Gonçalves Júnior, José Francisco Martins, Renato Tavares Hamada, Neusa Rezende, Renan de Souza
E-mail do autor:	mailto:gsena92@gmail.com
ORCID:	https://orcid.org/0000-0003-4244-223X https://orcid.org/0000-0001-8191-2113 https://orcid.org/0000-0002-4129-0863
Assunto:	Insetos trituradores Trichoptera Phylloicus Insetos - dieta Folhas
Data de publicação:	27-Jul-2020
Referência:	SENA, Guilherme et al. Leaf litter quality drives the feeding by invertebrate shredders in tropical streams. Ecology and Evolution, p. 1–8, 2020. DOI 10.1002/ece3.6169. Disponível em: https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.6169. Acesso em: 16 set. 2022.
Abstract:	Amazon and Cerrado-forested streams show natural fluctuations in leaf litter quantity along the time and space, suggesting a change on litter quality input. These natural fluctuations of leaf litter have repercussion on the organic matter cycling and consequently effects on leaf decomposition in forested streams. The effects of the quantity of leaf litter with contrasting traits on consumption by larvae of shredder insects from biomes with different organic matter dynamics have still been an understudied question. The Trichoptera Phylloicus spp. is a typical shredder in tropical headwater streams and keep an important role in leaf litter decomposition. Here, we assessed the consumption by shredder Phylloicus spp., from Amazonia and Cerrado biomes, on higher (Maprounea guianensis) and lower quality leaves (Inga laurina) in different proportions and quantities. Experiments were performed concomitantly in microcosms approaches, simulating Cerrado and Amazonian streams. Higher leaf consumption occurred in Cerrado microcosms. Litter quantity influenced negatively leaf consumption by shredders in Cerrado, in opposition to Amazonia, where consumption was not affected by leaf quantity. In both sites, we observed higher consumption by shredders in treatment with only M. guianensis and no difference between other treatments with mixture of leaves. In treatment with litter of I. laurina, we noted the use of substrate for case building (due to the higher leaf toughness), affecting the fragmentation process. Therefore, our results indicate that leaf litter quality drives the preference of consumption by Phylloicus larvae in Cerrado and Amazonia streams.
Licença:	Ecology and Evolution - This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Fonte: https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.6169. Acesso em: 16 set. 2022.
DOI:	https://doi.org/10.1002/ece3.6169
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