ArticleOecologia2019
Combining bulk and amino acid stable isotope analyses to quantify trophic level and basal resources of detritivores: a case study on earthworms.
Article in Oecologia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 47 citations in OpenAlex.
- Article
- Reliance on blue, green, and brown energy channels drives a shift in the trophic position of riparian spiders.Ecology · 2026Article
- Fungal Energy Channelling Sustains Soil Animal Communities Across Forest Types and Regions.Ecology letters · 2025Article
- Enhanced gut microbiome supplementation of essential amino acids inFrontiers in insect science · 2024Article
- Interplay of dietary diversity and mobility of the Late Neolithic people in the Central Plains of China: multi-isotope analysis at the Haojiatai site.Anthropological science : journal of the Anthropological Society of Nippon = Jinruigaku zasshi · 2024Article
- For flux's sake: General considerations for energy-flux calculations in ecological communities.Ecology and evolution · 2021Article
- Improving the application of quantitative fatty acid signature analysis in soil food webs: The effects of diet fat content.Ecology and evolution · 2021Article
- Multidimensional trophic niche revealed by complementary approaches: Gut content, digestive enzymes, fatty acids and stable isotopes in Collembola.The Journal of animal ecology · 2021Article
- Shifting systems: prerequisites for the application of quantitative fatty acid signature analysis in soil food webs.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Refining trophic dynamics through multi-factor Bayesian mixing models: A case study of subterranean beetles.Ecology and evolution · 2020Article
- Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 3 countries.
Funding
Abstract
Quantification of the bacterial, fungal, and plant energy channels to the nutrition of detritivores is methodologically challenging. This is especially true for earthworms that ingest large amounts of litter and soil mixed with microorganisms. Novel methods such as compound-specific stable isotope analysis (CSIA) of C and N of individual amino acids promise major progress in this field in comparison with bulk stable isotope analysis (bulk SIA). Here, we combine CSIA and bulk SIA of carbon and nitrogen to quantify the linkage of epigeic and endogeic earthworm species to different energy channels across boreal and temperate forest ecosystems. The results showed pronounced flux of energy directly from plants to earthworms (33-50% of essential amino acids, EAA) refining the position of earthworms in soil food webs as both competitors and consumers of microorganisms. Epigeic earthworm species primarily relied on plant litter and endogeic species primarily relied on bacteria and soil organic matter. The linkage of both groups to plant or microbial energy channel was likely driven by the quality of detritus. Both bulk
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