Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments

Giulia Bongiorno*, Natacha Bodenhausen, Else K. Bünemann, Lijbert Brussaard, Stefan Geisen, Paul Mäder, Casper W. Quist, Jean-Claude Walser, Ron G.M. de Goede

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality. Relative abundance of nematode feeding and life‐history groups are used for calculating food web indices, i.e., maturity index (MI), enrichment index (EI), structure index (SI) and channel index (CI). Molecular methods to study nematode communities potentially offer advantages compared to traditional methods in terms of resolution, throughput, cost and time. In spite of such advantages, molecular data have not often been adopted so far to assess the effects of soil management on nematode communities and to calculate these food web indices. Here, we used high‐throughput amplicon sequencing to investigate the effects of tillage (conventional vs. reduced) and organic matter addition (low vs. high) on nematode communities and food web indices in 10 European long‐term field experiments and we assessed the relationship between nematode communities and soil parameters. We found that nematode communities were more strongly affected by tillage than by organic matter addition. Compared to conventional tillage, reduced tillage increased nematode diversity (23% higher Shannon diversity index), nematode community stability (12% higher MI), structure (24% higher SI), and the fungal decomposition channel (59% higher CI), and also the number of herbivorous nematodes (70% higher). Total and labile organic carbon, available K and microbial parameters explained nematode community structure. Our findings show that nematode communities are sensitive indicators of soil quality and that molecular profiling of nematode communities has the potential to reveal the effects of soil management on soil quality.
Original languageEnglish
Pages (from-to)4987-5005
JournalMolecular Ecology
Volume28
Issue number22
Early online date16 Oct 2019
DOIs
Publication statusPublished - Nov 2019

Fingerprint

Food Chain
reduced tillage
tillage
food webs
nematode
food web
Nematoda
organic matter
Soil
soil quality
soil management
conventional tillage
Fungal Structures
field experiment
index
soil food webs
decomposition
soil nematodes
degradation
soil

Cite this

@article{fd0276fb494e4ef4ad0d1406f57d5e0b,
title = "Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments",
abstract = "Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality. Relative abundance of nematode feeding and life‐history groups are used for calculating food web indices, i.e., maturity index (MI), enrichment index (EI), structure index (SI) and channel index (CI). Molecular methods to study nematode communities potentially offer advantages compared to traditional methods in terms of resolution, throughput, cost and time. In spite of such advantages, molecular data have not often been adopted so far to assess the effects of soil management on nematode communities and to calculate these food web indices. Here, we used high‐throughput amplicon sequencing to investigate the effects of tillage (conventional vs. reduced) and organic matter addition (low vs. high) on nematode communities and food web indices in 10 European long‐term field experiments and we assessed the relationship between nematode communities and soil parameters. We found that nematode communities were more strongly affected by tillage than by organic matter addition. Compared to conventional tillage, reduced tillage increased nematode diversity (23{\%} higher Shannon diversity index), nematode community stability (12{\%} higher MI), structure (24{\%} higher SI), and the fungal decomposition channel (59{\%} higher CI), and also the number of herbivorous nematodes (70{\%} higher). Total and labile organic carbon, available K and microbial parameters explained nematode community structure. Our findings show that nematode communities are sensitive indicators of soil quality and that molecular profiling of nematode communities has the potential to reveal the effects of soil management on soil quality.",
author = "Giulia Bongiorno and Natacha Bodenhausen and B{\"u}nemann, {Else K.} and Lijbert Brussaard and Stefan Geisen and Paul M{\"a}der and Quist, {Casper W.} and Jean-Claude Walser and {de Goede}, {Ron G.M.}",
year = "2019",
month = "11",
doi = "10.1111/mec.15270",
language = "English",
volume = "28",
pages = "4987--5005",
journal = "Molecular Ecology",
issn = "0962-1083",
publisher = "Wiley",
number = "22",

}

Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments. / Bongiorno, Giulia; Bodenhausen, Natacha; Bünemann, Else K.; Brussaard, Lijbert; Geisen, Stefan; Mäder, Paul; Quist, Casper W.; Walser, Jean-Claude; de Goede, Ron G.M.

In: Molecular Ecology, Vol. 28, No. 22, 11.2019, p. 4987-5005.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments

AU - Bongiorno, Giulia

AU - Bodenhausen, Natacha

AU - Bünemann, Else K.

AU - Brussaard, Lijbert

AU - Geisen, Stefan

AU - Mäder, Paul

AU - Quist, Casper W.

AU - Walser, Jean-Claude

AU - de Goede, Ron G.M.

PY - 2019/11

Y1 - 2019/11

N2 - Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality. Relative abundance of nematode feeding and life‐history groups are used for calculating food web indices, i.e., maturity index (MI), enrichment index (EI), structure index (SI) and channel index (CI). Molecular methods to study nematode communities potentially offer advantages compared to traditional methods in terms of resolution, throughput, cost and time. In spite of such advantages, molecular data have not often been adopted so far to assess the effects of soil management on nematode communities and to calculate these food web indices. Here, we used high‐throughput amplicon sequencing to investigate the effects of tillage (conventional vs. reduced) and organic matter addition (low vs. high) on nematode communities and food web indices in 10 European long‐term field experiments and we assessed the relationship between nematode communities and soil parameters. We found that nematode communities were more strongly affected by tillage than by organic matter addition. Compared to conventional tillage, reduced tillage increased nematode diversity (23% higher Shannon diversity index), nematode community stability (12% higher MI), structure (24% higher SI), and the fungal decomposition channel (59% higher CI), and also the number of herbivorous nematodes (70% higher). Total and labile organic carbon, available K and microbial parameters explained nematode community structure. Our findings show that nematode communities are sensitive indicators of soil quality and that molecular profiling of nematode communities has the potential to reveal the effects of soil management on soil quality.

AB - Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality. Relative abundance of nematode feeding and life‐history groups are used for calculating food web indices, i.e., maturity index (MI), enrichment index (EI), structure index (SI) and channel index (CI). Molecular methods to study nematode communities potentially offer advantages compared to traditional methods in terms of resolution, throughput, cost and time. In spite of such advantages, molecular data have not often been adopted so far to assess the effects of soil management on nematode communities and to calculate these food web indices. Here, we used high‐throughput amplicon sequencing to investigate the effects of tillage (conventional vs. reduced) and organic matter addition (low vs. high) on nematode communities and food web indices in 10 European long‐term field experiments and we assessed the relationship between nematode communities and soil parameters. We found that nematode communities were more strongly affected by tillage than by organic matter addition. Compared to conventional tillage, reduced tillage increased nematode diversity (23% higher Shannon diversity index), nematode community stability (12% higher MI), structure (24% higher SI), and the fungal decomposition channel (59% higher CI), and also the number of herbivorous nematodes (70% higher). Total and labile organic carbon, available K and microbial parameters explained nematode community structure. Our findings show that nematode communities are sensitive indicators of soil quality and that molecular profiling of nematode communities has the potential to reveal the effects of soil management on soil quality.

U2 - 10.1111/mec.15270

DO - 10.1111/mec.15270

M3 - Article

VL - 28

SP - 4987

EP - 5005

JO - Molecular Ecology

JF - Molecular Ecology

SN - 0962-1083

IS - 22

ER -