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Stable isotope signatures reflect dietary diversity in Euroepan forest moths
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SYSNO ASEP 0465776 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stable isotope signatures reflect dietary diversity in Euroepan forest moths Author(s) Adams, M.-O. (AT)
Seifert, Carlo Lutz (BC-A) ORCID
Lehner, L. (AT)
Truxa, T. (AT)
Wanek, W. (AT)
Fiedler, K. (AT)Number of authors 6 Article number 37 Source Title Frontiers in Zoology. - : BioMed Central - ISSN 1742-9994
Roč. 13, č. 1 (2016)Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords delta C-13 ; delta N-15 ; larval diet Subject RIV EH - Ecology, Behaviour Institutional support BC-A - RVO:60077344 UT WOS 000383537700001 EID SCOPUS 84983287849 DOI 10.1186/s12983-016-0170-0 Annotation Background: Information on larval diet of many holometabolous insects remains incomplete. Carbon (C) and nitrogen (N) stable isotope analysis in adult wing tissue can provide an efficient tool to infer such trophic relationships. The present study examines whether moth feeding guild affiliations taken from literature are reflected in isotopic signatures. Results: Non-metric multidimensional scaling and permutational analysis of variance indicate that centroids of dietary groups differ significantly. In particular, species whose larvae feed on mosses or aquatic plants deviated from those that consumed vascular land plants. Moth delta15N signatures spanned a broader range, and were less dependent on species identity than delta13C values. Comparison between moth samples and ostensible food sources revealed heterogeneity in the lichenivorous guild, indicating only Lithosia quadra as an obligate lichen feeder. Among root-feeding Agrotis segetum, some specimens appear to have developed on crop plants in forest-adjacent farm land. Reed-feeding stem-borers may partially rely on intermediary trophic levels such as fungal or bacterial growth. Conclusion: Diagnostic partitioning of moth dietary guilds based on isotopic signatures alone could not be achieved, but hypotheses on trophic relationships based on often vague literature records could be assessed with high resolution. Hence, the approach is well suited for basic categorization of moths where diet is unknown or notoriously difficult to observe (i.e. Microlepidoptera, lichen-feeders). Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2017 Electronic address https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-016-0170-0
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