Conceptualizing soil fauna effects on labile and stabilized soil organic matter

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 17, 2024

Fauna is highly abundant and diverse in soils worldwide, but surprisingly little known about how it affects soil organic matter stabilization. Here, we review the ecological strategies of a multitude faunal taxa can affect formation persistence labile (particulate matter, POM) stabilized (mineral-associated MAOM). We propose three major mechanisms - transformation, translocation, grazing on microorganisms by which fauna alters factors deemed essential POM MAOM, including quantity decomposability mineralogy, abundance, location, composition microbial community. Determining relevance these to MAOM cross-disciplinary studies that cover individual more complex communities, employ physical fractionation, isotopic, microbiological approaches advance concepts, models, policies focused effectively manage as carbon sinks, nutrient stores, providers food.

Language: Английский

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Four new large Glossoscolex (Clitellata: Glossoscolecidae) earthworms from Brazil

Zootaxa, Journal Year: 2025, Volume and Issue: 5589(1), P. 301 - 320

Published: Feb. 19, 2025

Four new species of earthworms in the genus Glossoscolex (Clitellata: Glossoscolecidae), one belonging to truncatus (Glossoscolex anaclaudiae sp. nov.) and others giganteus itatiaiaensis nov., demeijeri demetrioi groups are described from material collected southeastern southern Brazil, states Rio de Janeiro, São Paulo, Paraná Santa Catarina. All large-sized earthworms, with body length over 20 cm, considered “minhocuçus”. Apart G. (male pore XVII), all other have male pores segment XVIII, but different sizes formats. The presence many undescribed large highlights need for further ecological taxonomic work on this diverse group worms Brazil. We present a table characteristics species, compared type Leuckart, 1841.

Language: Английский

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High litter quality enhances plant energy channeling by soil macro‐detritivores and lowers their trophic position

Ecology, Journal Year: 2025, Volume and Issue: 106(2)

Published: Feb. 1, 2025

Abstract Detritus‐based resources, that is, plant litter, are a major energy source for many living organisms and considered to be key determinant of primary production nutrient cycling. Earthworms among the most important macro‐detritivores in terrestrial food webs play crucial role facilitating these processes ecosystems. Yet, influence litter quality on earthworm nutrition, consequently soil web dynamics, has remained largely underexplored, mainly methodological reasons. Here, we combined bulk compound‐specific stable isotope analysis amino acids investigate dietary contribution different resources species ecological groups. Our findings show earthworms acquired essential from bacterial (~60%) (~30%) with latter increasing importance higher quality, resulting lower trophic positions across species. The high corresponds dominance bacteria experimental soil, suggesting served as an intermediate link transferring detritus‐based earthworms. Bacterial contributions were notably soil‐feeding than litter‐feeding species, likely due more pronounced ingestion by Overall, our study indicates group macro‐detritivores, earthworms, receive detrital via channel. Further, it underscores shaping niches detritivores, thereby influencing overall structure webs.

Language: Английский

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Earthworms as soil health indicators in no-tillage agroecosystems

European Journal of Soil Biology, Journal Year: 2024, Volume and Issue: 121, P. 103605 - 103605

Published: March 18, 2024

Language: Английский

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Local variations in soil compaction in the drilosphere of a wide range of earthworms and links with ecological categories and functional traits

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 194, P. 109435 - 109435

Published: April 17, 2024

Language: Английский

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The effects of earthworm species on organic matter transformations and soil microbial communities are only partially related to their bioturbation activity

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 199, P. 109606 - 109606

Published: Sept. 27, 2024

Language: Английский

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Impact of tillage practices and soil texture on soil health and earthworms in the Pannonian region: A comparative study from Austria and Hungary

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 206, P. 105863 - 105863

Published: Jan. 5, 2025

Language: Английский

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Macrofaunal biopores: Diversity and regeneration rates across diverse pedoclimatic conditions studied with repacked soil cores

Geoderma, Journal Year: 2025, Volume and Issue: 454, P. 117177 - 117177

Published: Jan. 30, 2025

Language: Английский

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Interactions between earthworm species and soil type influence the porosity of earthworm casts

Soil Biology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109739 - 109739

Published: Feb. 1, 2025

Language: Английский

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Not the brightest earthworm in the genus: two non-bioluminescent Avelona (Lumbricidae, Crassiclitellata) with description of a new species

Zootaxa, Journal Year: 2025, Volume and Issue: 5589(1), P. 270 - 281

Published: Feb. 19, 2025

Several new earthworm species have been described in France the last decade, but Western peri-Alpine region, despite hosting several endemic species, has received little attention. A recently discovered from this region was found to be a close relative Avelona ligra and Allolobophora s.l. zicsii after molecular phylogenetics (based on markers COI, 16S, ND1, 28S 12S) as yvesi sp. nov. Morphological study of Av. nov., comb. allowed provide an improved diagnosis genus, highlighting wide variability spermathecae nephridial morphology. These reinforce evolutionary significance their range putative refuge pre-glacial diversity, show contrasting distribution patterns which could attributed historical or ecological causes, chances bioluminescence with closest, non-bioluminescent relatives.

Language: Английский

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