Collembola decrease the nitrogen uptake of maize through arbuscular mycorrhiza

Seres, Anikó; Posta, Katalin; Bakonyi, Gábor; Nagy, Péter; Kiss, István; Fábián, Miklós; Répási, V.; Nosek, J

doi:10.4149/ekol_2009_03_242

Cited by 4 publications

(3 citation statements)

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“…Collembola and Diplopoda are known to incorporate AMF into their diet either by feeding on roots or indirectly by consumption of dead organic matter 56 , 57 . Collembola may even suppress AMF hyphal networks in agricultural soils to an extent to which nitrogen uptake by crop plants is reduced 58 . Our results, however, suggest that Collembola abundance was positively related to N content of wheat shoots in both farming systems.…”

Section: Discussionmentioning

confidence: 99%

Conventional agriculture and not drought alters relationships between soil biota and functions

Birkhofer

Fließbach

Gavín-Centol

et al. 2021

Sci Rep

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Soil biodiversity constitutes the biological pillars of ecosystem services provided by soils worldwide. Soil life is threatened by intense agricultural management and shifts in climatic conditions as two important global change drivers which are not often jointly studied under field conditions. We addressed the effects of experimental short-term drought over the wheat growing season on soil organisms and ecosystem functions under organic and conventional farming in a Swiss long term trial. Our results suggest that activity and community metrics are suitable indicators for drought stress while microbial communities primarily responded to agricultural practices. Importantly, we found a significant loss of multiple pairwise positive and negative relationships between soil biota and process-related variables in response to conventional farming, but not in response to experimental drought. These results suggest a considerable weakening of the contribution of soil biota to ecosystem functions under long-term conventional agriculture. Independent of the farming system, experimental and seasonal (ambient) drought conditions directly affected soil biota and activity. A higher soil water content during early and intermediate stages of the growing season and a high number of significant relationships between soil biota to ecosystem functions suggest that organic farming provides a buffer against drought effects.

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Section: Discussionmentioning

confidence: 99%

Conventional agriculture and not drought alters relationships between soil biota and functions

Birkhofer

Fließbach

Gavín-Centol

et al. 2021

Sci Rep

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“…However, top-down effects on fungi have mainly been studied in soil microcosms, and the significance under realistic conditions in the field remains unclear (A 'Bear et al, 2014). Field studies have indicated that invertebrates might also affect saprotrophic fungi by altering the substrate (Jacobsen, Birkemoe, & Sverdrup-Thygeson, 2015;Leach, Orr, & Christensen, 1937;Weslien, Djupström, Schroeder, & Widenfalk, 2011) or dispersing fungal propagules (Jacobsen, Kauserud, Sverdrup-Thygeson, Bjorbaekmo, & Birkemoe, 2017;Lilleskov & Bruns, 2005;Seres, Bakonyi, & Posta, 2007;Strid, Schroeder, Lindahl, Ihrmark, & Stenlid, 2014), but the effect on the fungal community as a whole is rarely explored (but see Müller, Varama, Heinonen, & Hallaksela, 2002;Strid et al, 2014;Ulyshen, Diehl, & Jeremic, 2016).…”

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confidence: 99%

Exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in an experimental field study

et al. 2018

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Decomposer communities perform an essential ecosystem function by recycling nutrients. However, the effect of higher trophic levels on microbial decomposer communities and rate of decomposition is poorly understood. We therefore conducted an exclusion experiment to test the effect of invertebrates on fungal decomposer communities in dead wood, repeated at 30 sites in two landscapes, and measured wood density to assess effect on decay rate. Invertebrates were excluded from recently cut logs by cages with a 1‐mm‐mesh net, and fungal communities in caged logs were compared to logs accessible to invertebrates by DNA metabarcoding analyses. Accessible logs included control logs, cage control logs and positive control logs. We found that exclusion of invertebrates had a significant effect on fungal community composition. For example, the wood decay fungi Trametes versicolor and T. ochraceawere significantly more abundant in accessible logs than in caged logs. The strongest effect on fungal community composition, however, was attributed to differing baseline conditions in the individual trees. When accounting for these baseline differences, caged logs had significantly higher wood density than control logs after 2 years, indicating lower rates of wood decay in caged logs. Further studies, spanning several years, are required to fully understand the influence of invertebrates on fungi and wood decay. However, our results indicate that invertebrates influence both the composition of saprotrophic communities in dead wood and their decomposition function, which is vital to forest ecosystems. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.13196/suppinfo is available for this article.

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“…Th ey constitute an explicit community among other taxa as indicators of ecosystem functioning. Th e diversity, composition, and abundance of this fauna provide an indicator of the biological activity of the soil to qualify the litter and can be used as bioindicators of pollution (Cortet et al, 2003;Fiera et al, 2020a;Parisi et al, 2005;Seres et al, 2009). Numerous diagnostic studies of soil disturbance states concerning anthropogenic activity can be carried out by analyzing springtail communities (Fiera et al, 2020a;Frampton, van den Brink, 2007;Ghosal et al, 2018;Harta et al, 2020).…”

Section: Temporal Dynamics Of Soil Invertebrate Communities In a Vine...mentioning

confidence: 99%

Temporal Dynamics of Soil Invertebrate Communities in a Vineyard Under Treatment with Pesticides

Oultaf

Ahmed

et al. 2022

Ekológia (Bratislava)

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Phytosanitary treatments with pesticides are widely used to control pests and diseases in vineyards. An important part of the dispersed pesticide reaches the soil, affecting the fauna, producing quantitative and qualitative changes in the edaphic population’s structure and physiological activities. This study aims to evaluate the temporal dynamics of the soil macro and mesofauna through different pesticide treatment periods, where fungicides are the dominant pest control agent. A field experiment was carried out in Boumerdes, a specific viticultural region in Algeria. Soil samples were taken during three periods, before, during, and after treatment with pesticides, using the quadrat method at three soil depths. During these three periods, the soil macro and mesofauna were observed and compared. The results showed significant differences in the composition of invertebrate communities that tended to disappear during pesticide application. The structure and diversity of 11 invertebrate classes, including Collembola, changed along the treatment gradient. The effects of sampling periods on occurrence, abundance, and taxon richness were consistently negative. These indices were significantly lower after pesticide application. Therefore, we can suppose that climatic factors and pesticide treatements are the main factors affecting the activity and density of all classes of invertebrates, but these effects vary between the functional groups of soil biota.

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Collembola decrease the nitrogen uptake of maize through arbuscular mycorrhiza

Cited by 4 publications

References 0 publications

Conventional agriculture and not drought alters relationships between soil biota and functions

Conventional agriculture and not drought alters relationships between soil biota and functions

Exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in an experimental field study

Temporal Dynamics of Soil Invertebrate Communities in a Vineyard Under Treatment with Pesticides

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