Conceptualizing soil fauna effects on labile and stabilized soil organic matter

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Июнь 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.

Язык: Английский

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

Zootaxa, Год журнала: 2025, Номер 5589(1), С. 301 - 320

Опубликована: Фев. 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.

Язык: Английский

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

Ecology, Год журнала: 2025, Номер 106(2)

Опубликована: Фев. 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.

Язык: Английский

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Relationships between earthworm community, bioturbation and soil detachment: A one-year outdoor experiment

Applied Soil Ecology, Год журнала: 2025, Номер 210, С. 106063 - 106063

Опубликована: Март 31, 2025

Язык: Английский

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Let’s get functional: relationship between earthworm traits and physicochemical cast properties

Soil Biology and Biochemistry, Год журнала: 2025, Номер unknown, С. 109809 - 109809

Опубликована: Апрель 1, 2025

Язык: Английский

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Earthworms as soil health indicators in no-tillage agroecosystems

European Journal of Soil Biology, Год журнала: 2024, Номер 121, С. 103605 - 103605

Опубликована: Март 18, 2024

Язык: 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, Год журнала: 2024, Номер 194, С. 109435 - 109435

Опубликована: Апрель 17, 2024

Язык: 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, Год журнала: 2024, Номер 199, С. 109606 - 109606

Опубликована: Сен. 27, 2024

Язык: Английский

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Linking effect traits of soil fauna to processes of organic matter transformation

Functional Ecology, Год журнала: 2024, Номер unknown

Опубликована: Дек. 20, 2024

Abstract Soil organic matter (SOM) transformation processes are regulated by the activities of plants, microbes, and fauna. Compared with plants effects soil fauna less understood because their high taxonomic functional diversity, mix direct indirect effect mechanisms. Trait‐based approaches offer a generic perspective to quantify mechanistic relationships between SOM transformations, including decomposition, translocation, stabilisation carbon. Yet, at present, we lack consensus concerning relevant key traits (i.e. those affecting ecosystem functioning). Here, address this knowledge gap focusing on transformations. Based existing literature, identify linked universally applicable across taxa types, discuss process‐trait links. We define eight that directly affected fauna: (i) litter mass loss, (ii) fragmentation, (iii) aggregation in faeces, (iv) mineral particles, (v) decomposition (vi) (vii) pore space creation maintenance (viii) stabilisation. link these general classified into four categories: (a) food selection ingestion, (b), digestion excretion, (c) mobility, (d) body metabolic rate. also propose proxies when trait measurements laborious. The proposed links need be validated targeted experiments. urge researchers obtain quantitative experimental data, together approaches, integratively contributions functioning. Read free Plain Language Summary for article Journal blog.

Язык: 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, Год журнала: 2025, Номер 206, С. 105863 - 105863

Опубликована: Янв. 5, 2025

Язык: Английский

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