Chemical change of leaves during breakdown affects associated invertebrates in a subtropical stream

Tonin, Alan M.; Restello, Rozane Maria; Hepp, Luiz Ubiratan

doi:10.1590/s2179-975x2014000300003

Cited by 5 publications

(3 citation statements)

References 38 publications

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“…In diverse riparian systems (e.g. native trees composition), the leaves are usually more malleable and thinner, with lower concentrations of structural nutrients in relation to those of the non-native species (Tonin et al, 2014). In addition, the leaching of DIC occurred in the first 12 h, suggesting that there was greater dissolution of soluble inorganic substances in the initial period of the experiment.…”

Section: Discussionmentioning

confidence: 99%

“…This feature causes the forest remnants observed in the Upper Uruguay region to be composed of species with very broad phenological variability. Thus, it is expected that the organic matter input of these species to streams will vary throughout the year (Capellesso et al, 2016); consequently, the streams will vary chemically (Tonin et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

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Leaching of carbon from native and non-native leaf litter of subtropical riparian forests

et al. 2018

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We evaluated the leaching of dissolved organic and inorganic carbon (DOC and DIC, respectively) from leaf litter of plant species of the native Atlantic Forest and of Pinus elliottii (Engelm.) and Eucalyptus grandis (Hill ex Maiden) forests. We carried out experiments in which leaves from each forest system (native, E. grandis, and P. elliottii) were placed in reactors with sterile water. After 1/4 h, 1 h, 4 h, 12 h, 24 h, and 48 h of incubation, we quantified the concentrations of DIC and DOC of each leachate. The greatest quantity of DIC was leached in the native forest system, whereas the greatest quantity of DOC was leached in the E. grandis forest system. With respect to the period of year, the greatest quantity of DIC was leached in autumn, whereas that of DOC was leached in the summer. Our results demonstrated that the replacement of native species in riparian zones, by non-native forest monocultures, could alter the chemical composition of the water. Finally, the results presented in this paper reinforce the need for a more careful look at ecological processes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Leaching of carbon from native and non-native leaf litter of subtropical riparian forests

et al. 2018

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“…The leaves were air dried, homogenised and weighed. C. xanthocarpa leaves have 2.1 ± 0.1% nitrogen, 0.040 ± 0.005% phosphorus and 4.0 ± 0.2% tannins (for more details, see Tonin et al, 2014b).…”

Section: Leaves and Field Experimentsmentioning

confidence: 99%

Effect of Phylloicus on leaf breakdown in a subtropical stream

Tonello¹,

A.²,

Tonin³

et al. 2016

Limnetica

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Effect of Phylloicus on leaf breakdown in a subtropical streamShredder invertebrates are key organisms in the decomposition of leaves in streams. These organisms transform coarse organic matter into fine organic matter, incorporate carbon and nutrients into animal biomass and promote the recycling of terrestrial carbon. Despite their importance in headwater streams, the life history of this shredder taxa and their relationship with organic matter processing is unclear. The main objectives of this study were to evaluate leaf breakdown during two periods of the year and test whether differences in the Phylloicus larvae abundance alter organic matter processing. We incubated leaves of a common native species (Campomanesia xanthocarpa) in the same stream during March (autumn) and October (spring). Samples were collected after 7, 15 and 30 days. After 30 days of incubation, the remaining leaf mass was lower in autumn (30%) than in spring (53%). The breakdown rate (k) was -0.0449 ± 0.0042 day -1 in autumn and -0.0180 ± 0.0003 day -1 in spring. The abundance of Phylloicus was also higher in autumn than in spring (11.1 ± 1.9 ind/litter bag versus 2.7 ± 1.9 ind/litter bag). We observed a positive correlation between Phylloicus abundance and leaf mass loss in autumn (r = 0.74). Our results demonstrate that Phylloicus abundance differs with season and impacts the processing of particulate organic matter. Furthermore, this work highlights the importance of Phylloicus larvae and their contribution to leaf breakdown in subtropical streams.

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Hovenia dulcis Thunb. (Rhamnaceae) invasion in the riparian zone alters the dynamics and decomposition of organic matter in subtropical streams, but not of associated invertebrate assemblages

2022

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Chemical change of leaves during breakdown affects associated invertebrates in a subtropical stream

Cited by 5 publications

References 38 publications

Leaching of carbon from native and non-native leaf litter of subtropical riparian forests

Leaching of carbon from native and non-native leaf litter of subtropical riparian forests

Effect of Phylloicus on leaf breakdown in a subtropical stream

Hovenia dulcis Thunb. (Rhamnaceae) invasion in the riparian zone alters the dynamics and decomposition of organic matter in subtropical streams, but not of associated invertebrate assemblages

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