Ecosystem type affects interpretation of soil nematode community measures

Neher, Deborah A.; Wu, Jihua; Barbercheck, Mary E.; Anas, O.

doi:10.1016/j.apsoil.2005.01.002

Cited by 161 publications

(106 citation statements)

References 54 publications

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“…Changes in which land management and vegetation cover are related can be reflected by soil free-living nematode populations, which are known to be good environmental indicators, due to the fact that they possess attributes that can reflect below-ground modifications (Bernard 1992;Neher and Campbell 1994;Wasilewska 1997;Bongers and Ferris 1999;Yeates 1999;Donegan et al 2001;Neher et al 2005). In this study, the response of the soil free-living nematode community was used in order to reveal the differences between the common long-term forms of management, i.e., greenhouses, conventional farmlands, and fallows.…”

Section: Discussionmentioning

confidence: 99%

“…Because of the importance of nematodes in the soil processes mentioned above, there has been an increasing number of studies that propose utilizing soil nematodes as indicators of soil quality, biodiversity, disturbance, agricultural productivity, or sustainability (Bongers 1990;Wasilewska 1995;Porazinska et al 1999;Neher 2001;Ferris et al 2001;Villenave et al 2001;Yeates 2003;Garcia-Alvarez et al 2004;Neher et al 2005).…”

Section: Mots Clé S: Gestion Agricole Ne´matodes Perturbation Indicesmentioning

confidence: 99%

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Effects of different soil management practices on soil free-living nematode community structure, Eastern China

Dong¹,

Chen²,

Steinberger³

et al. 2008

Can. J. Soil. Sci.

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. 2008. Effects of different soil management practices on soil free-living nematode community structure, Eastern China. Can. J. Soil Sci. 88: 115Á127. An investigation was conducted in a Shouguang agroecosystem, Shandong Province, Eastern China, in order to determine the long-term (10Á15 yr) disturbances of three different agricultural management practices. In this study, the main focus was on free-living soil nematodes, as a tool which will help differentiate between treatments according to their sensitivity to physical, chemical, and biota composition. In this study, three treatments were implemented in each of a total of four investigated sites: greenhouses, conventional farmlands, and fallows. Diversity, maturity (MI) and weight indices were used to assess the nematode community. The results indicated that greenhouses have a lower richness (SR), diversity, modified maturity index (SMI), modified maturity index for all nematodes with c-p 02Á5 [SMI (2Á5)], plant parasite index (PPI), PPI/MI values, and fungi-feeding/bacteria-feeding (F/B) ratio, as well as lower basal index (BI) and channel index (CI) and higher dominance. These results elucidated the difference between the three treatments, where the greenhouses were an enriched disturbed system compared with the other treatments and were dominated by bacterivorous nematodes, the fallows were a relatively infertile and stable system dominated by plant parasites, and the conventional farmlands can be positioned between the above two treatments.

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Section: Discussionmentioning

confidence: 99%

Section: Mots Clé S: Gestion Agricole Ne´matodes Perturbation Indicesmentioning

confidence: 99%

Effects of different soil management practices on soil free-living nematode community structure, Eastern China

Dong¹,

Chen²,

Steinberger³

et al. 2008

Can. J. Soil. Sci.

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“…This lower native plant diversity could be the legacy of historic land use change, including drainage of wetlands, clearing of forests, and tillage and land planing for agriculture, dating back to the late 1800s (Barbour et al 1993). Soil fungi and fungivorous nematodes often decrease with disturbance and/or wetter soils (Holland and Coleman 1987;Neher et al 2005;Six et al 2006). Thus, the greater abundance of fungivorous nematodes in position A may reflect drier and less disturbed soil conditions more conducive to fungal decomposition pathways further from the waterways.…”

Section: Riparian Gradient and Land Use Typesmentioning

confidence: 99%

“…In a heterogeneous agricultural landscape, management of riparian buffer zones changes soil properties, plant and soil biodiversity, nutrient cycling, and erosion potential (Lovell and Sullivan 2006;Neher et al 2005). Vegetated riparian buffers filter agricultural nutrients and pollutants, reduce erosion, improve water quality and provide reservoirs for biodiversity (Lovell and Sullivan 2006;Peterjohn and Correll 1984;Richardson et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Plant-soil biodiversity relationships and nutrient retention in agricultural riparian zones of the Sacramento Valley, California

et al. 2010

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Forested riparian buffers in California historically supported high levels of biodiversity, but human activities have degraded these ecosystems over much of their former range. This study examined plant communities, belowground biodiversity and indicators of multiple ecosystem functions of riparian areas across an agricultural landscape in the Sacramento Valley of California, USA. Plant, nematode and soil microbial communities and soil physical and chemical properties were studied along 50-m transects at 20 sites that represented the different land use, soil and vegetation types in the landscape. Riparian zones supported greater plant diversity and nearly twice as much total carbon (C) per hectare compared to adjacent land managed for agricultural uses, but had generally lower soil microbial and nematode diversity and abundance. When woody plant communities were present in the riparian zone, plant diversity and species richness were higher, and soil nitrate and plant-available phosphorus levels were lower. Belowground diversity and community structure, however, appeared to depend more on plant productivity (as inferred by vegetation cover) than plant diversity or species richness. Greater plant species richness, nematode food web structure, total microbial biomass, woody C storage and lower soil nitrate and phosphorus loading were correlated with higher visual riparian health assessment scores, offering the possibility of managing these riparian habitats to provide multiple ecosystem functions.

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“…forest (Sohlenius et al, 1987), sugar beet, cereals and lucerne (Renčo 2002), Ambrosia trifida and Chenopodium serotinum . Neher et al … (2004) stated that fluctuation of nematodes during vegetation is influenced by several biotic and abiotic factors such as temperature, annual rainfall, type of soil and plants, organic substances, microflora and management practices. As reported by Bakonyi and Nagy (2000), temperature is the main factor influencing nematode diversity although the nematode abundance is predominantly affected by the soil moisture content.…”

Section: Introductionmentioning

confidence: 99%

Seasonal fluctuations of the nematode communities in a hop garden soil

2010

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A study on the seasonal fluctuation of nematode population was conducted during three vegetation periods (2005 – 2007), at 20 and 40 cm soil depth, from May to October, in a hop garden at Nemšová (Slovak Republic). The seasonal fluctuation of the nematode population was related to temperature and rainfall. At 20 cm soil depth of each year, the largest nematode population was recorded in July, and the smallest from July to October. At 40 cm soil depth, nematode abundance was not significantly different between the years 2006 and 2007. In general, at the same depth, a decrease of nematode abundance was observed from May to October. The soil nematode community was rich in bacteriovorous nematodes, especially in the top 20 cm soil. The genus Rhabditis was the eudominant taxon at both soil depths. This genus with the genera Cephalobus, Heterodera, Merlinius and Aglenchus represented the 50 % of the total nematode population at 20 cm soil depth and with the genera Cephalobus, Helicotylenchus, Heterodera and Merlinius represented the 52 % of total nematodes abundance at 40 cm depth.

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Ecosystem type affects interpretation of soil nematode community measures

Cited by 161 publications

References 54 publications

Effects of different soil management practices on soil free-living nematode community structure, Eastern China

Effects of different soil management practices on soil free-living nematode community structure, Eastern China

Plant-soil biodiversity relationships and nutrient retention in agricultural riparian zones of the Sacramento Valley, California

Seasonal fluctuations of the nematode communities in a hop garden soil

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