Features of soil nematode communities in various types of natural biocenoses: Effectiveness of assessment parameters

Матвеева, Е. М.; Сущук, А. А.

doi:10.1134/s1062359016040099

Cited by 12 publications

(11 citation statements)

References 28 publications

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“…They are found at all trophic levels of the soil food web in combination with plants, bacteria, microarthropods, and other nematodes [22] . Nematodes have long served as bioindicators and the ecological indices of nematode communities reveal natural and human-induced changes in soil ecosystems [23] . The use of soil nematodes as indicators of health offers many advantages and their use for the assessment of soils is increasing because of their high diversity and abundance and their essential and various roles in ecosystem function [24] .…”

Section: Soil Nematodes As Biological Indicators Of Soil Healthmentioning

confidence: 99%

“…MI is inversely related to the extent of soil disturbance, being less than two in nutrientenriched disturbed systems, but about four in undisturbed environments. EI reflects food availability and soil organic matter enrichment, in turn reflecting the sensitivities of functional nematode guilds [23] . CI is calculated using the numbers of bacterivores and fungivores, revealing the predominant pathway of organic matter decomposition by bacteria and fungi [23] .…”

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

“…EI reflects food availability and soil organic matter enrichment, in turn reflecting the sensitivities of functional nematode guilds [23] . CI is calculated using the numbers of bacterivores and fungivores, revealing the predominant pathway of organic matter decomposition by bacteria and fungi [23] . SI is calculated using an indicator weighting system based on the importance of the functional guilds along hypothesized trajectories of structure and provides location of the food web along the structure trajectory [32] .…”

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

“…Changes in the relative abundances of nematodes feeding on bacteria or fungi mirror changes in decomposition routes and energy channel widths. NCR "indicates the contribution of the various primary consumers of detritus in the process of decomposition of soil organic matter" [23] . The value ranges from 0 to 1 (totally fungus mediated to totally bacteria mediated), with higher values in organic systems.…”

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

“…Pp/(B + F) describes the differences between detritus and grazing food webs and yields the matter and energy transfer rates from autotrophs to heterotrophs. High values "indicate the consumption of living plant tissue by herbivores and the dominance of the grazing food web", and low values "indicate the predominance of the detritus food web associated with the decomposition of dead tissue by bacteria and fungi" [23] .…”

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

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A review of soil nematodes as biological indicators for the assessment of soil health

Liu

Wang

et al. 2020

Front. Agr. Sci. Eng.

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Healthy soils are essential for sustainable agricultural development and soil health requires careful assessment with increasing societal concern over environmentally friendly agricultural development. Soil health is the capacity of soil to function within ecological boundaries to sustain productivity, maintain environmental quality, and promote plant and animal health. Physical, chemical and biological indicators are used to evaluate soil health; the biological indicators include microbes, protozoa and metazoa. Nematodes are the most abundant metazoa and they vary in their sensitivity to pollutants and environmental disturbance. Soil nematode communities are useful biological indicators of soil health, with community characteristics such as abundance, diversity, community structure and metabolic footprint all closely correlated with the soil environment. The community size, complexity and structure reflect the condition of the soil. Both free-living and plant-parasitic nematodes are effective ecological indicators, contributing to nutrient cycling and having important roles as primary, secondary and tertiary consumers in food webs. Tillage inversion, cropping patterns and nutrient management may have strong effects on soil nematodes, with changes in soil nematode communities reflecting soil disturbance. Some free-living nematodes serve as biological models to test soil condition in the laboratory and because of these advantages soil nematodes are increasingly being used as biological indicators of soil health.

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Section: Soil Nematodes As Biological Indicators Of Soil Healthmentioning

confidence: 99%

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

Section: Soil Nematode Community and Diversity Indicatorsmentioning

confidence: 99%

See 3 more Smart Citations

A review of soil nematodes as biological indicators for the assessment of soil health

Liu

Wang

et al. 2020

Front. Agr. Sci. Eng.

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Nematodes as Ghosts of Land Use Past: Elucidating the Roles of Soil Nematode Community Studies as Indicators of Soil Health and Land Management Practices

Biswal¹

2022

Appl Biochem Biotechnol

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Assessing the Ecological Status of the Seekoeivlei Wetland, South Africa: a Nematode Community Case Study

Rensburg

2020

Wetlands

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The nematofauna of the Seekoeivlei Wetland in the north-eastern Free State province of South Africa was studied in order to determine its ecological status. Nematodes were collected in three different surveys, in October 2011, and in February and May 2012. Samples were taken from three sites within the reserve, each representing a different habitat. A total of 37 genera belonging to 21 nematode families were identified. The highest nematode diversity was observed during the summer sampling survey. All trophic groups were represented in only two sites in February. Maturity index was lowest in February (MI 2-5 = 1.99) and highest in May (MI 2-5 = 3.25). Non-metric multidimensional scaling analysis showed separation of seasons with winter and spring being most different from each other, which was supported by ANOSIM (R = 0.704; p < 0.001). The nematode faunal analysis profile of most of the soil food webs per locality per survey clustered into quadrat C, demonstrating that overall the Seekoeivlei Wetland was undisturbed with moderate enrichment and represented by fungal decomposition pathways. This study was the first to use nematode community data solely to determine the ecological status of a wetland in South Africa, which may henceforth be used for reference purposes.

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Features of soil nematode communities in various types of natural biocenoses: Effectiveness of assessment parameters

Cited by 12 publications

References 28 publications

A review of soil nematodes as biological indicators for the assessment of soil health

A review of soil nematodes as biological indicators for the assessment of soil health

Nematodes as Ghosts of Land Use Past: Elucidating the Roles of Soil Nematode Community Studies as Indicators of Soil Health and Land Management Practices

Assessing the Ecological Status of the Seekoeivlei Wetland, South Africa: a Nematode Community Case Study

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