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Cited by 33Crustacean biology and ecologyIsotope Analysis in EcologyMarine Biology and Ecology Research

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Feeding rates of Balloniscus sellowii (Crustacea, Isopoda, Oniscidea): the effect of leaf litter decomposition and its relation to the phenolic and flavonoid content

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Wood, Camila, Schlindwein, Carolina Casco Duarte, Soares, Geraldo Luiz Gonçalves, Araujo, Paula Beatriz·2012·ZooKeys
DOI 10.3897/zookeys.176.1940PMC PMC3335417
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Abstract

The goal of this study was to compare the feeding rates of Balloniscus sellowii on leaves of different decomposition stages according to their phenolic and flavonoid content. Leaves from the visually most abundant plants were offered to isopods collected from the same source site. Schinus terebinthifolius,the plant species consumed at the highest rate, was used to verify feeding rates at different decomposition stages. Green leaves were left to decompose for one, two, or three months, and then were offered to isopods. The total phenolic and flavonoid contents were determined for all decomposition stages. Consumption and egestion rates increased throughout decomposition, were highest for two-month-old leaves, and decreased again in the third month. The assimilation rate was highest for green leaves. The mode time of passage through the gut was two hours for all treatments. Ingestion of leaves occurred after two or three days for green leaves, and on the same day for one-, two- and three-month-old leaves. The speed of passage of leaves with different decomposition stages through the gut does not differ significantly when animals are fed continuously. However, it is possible that the amount retained in the gut during starvation differs depending on food quality. The digestibility value was corrected using a second food source to empty the gut of previously ingested food, so that all of the food from the experiment was egested. The digestibility value was highest for green leaves, whereas it was approximately 20% for all other stages. This was expected given that digestibility declines during decomposition as the metabolite content of the leaves decreases. The phenolic content was highest in the green leaves and lowest in three-month-old leaves. The flavonoid content was highest in green leaves and lowest after two months of decomposition. Animals ingested more phenolics when consumption was highest. The estimated amount of ingested flavonoids followed the same trend as assimilation rate. Flavonoids accounted for a large portion of total phenolics, and the estimated amount of flavonoids consumed was similar for one-, two- and three-month-old leaves. Our results suggest that the high phenolic and flavonoid concentrations in green leaves are feeding deterrents. Isopods may discriminate among concentrations of flavonoids and modify their consumption rates to maintain their intake of flavonoids when ingesting leaves with lower flavonoid content.

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References 55 · Cited by 33

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Metadata

Authors
Wood, C., Schlindwein, C. C. D., Soares, G. L. G., & Araujo, P. B.
Affiliations
Universidade Federal do Rio Grande do Sul (BR)
ORCID
Venue
ZooKeys
Publisher
Pensoft Publishers
Published
2012-03-20
Volume
176
Issue
176
Pages
231-245
ISSN
  • 1313-2970 (ISSN-L)
  • 1313-2989
DOI
10.3897/zookeys.176.1940
PMC
PMC3335417
OpenAlex
W1971565309
Cited by
33
References
55
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 1 · 2021: 2 · 2020: 2 · 2019: 7 · 2018: 5 · 2017: 2 · 2016: 3 · 2015: 3 · 2014: 2
FWCI
1.42
Type
journal article
Language
en
Open access
Licence
Locations
  • ZooKeys (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ZooKeys (submittedVersion, other-oa)
  • Biodiversity Heritage Library (Smithsonian Institution) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Physical Sciences › Environmental Science › Ecology › Crustacean biology and ecology
  • Physical Sciences › Environmental Science › Ecology › Isotope Analysis in Ecology
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
Keywords
terrestrial isopods, leaf litter decomposition, feeding rate, phenolic compounds, flavonoids, food quality, feeding deterrents, leaf digestibility, gut transit time, Schinus terebinthifolius

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