Forest fires alter the trophic structure of soil nematode communities

Butenko, Konstantin O.; Gongalsky, Konstantin B.; Korobushkin, Danııl I.; Ekschmitt, Klemens; Zaitsev, Andrey S.

doi:10.1016/j.soilbio.2017.02.006

Cited by 39 publications

(26 citation statements)

References 48 publications

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“…The soils were Chernozem chernic and Phaeozem albic in broadleaved forests, and Albeluvisol umbric in southern taiga (IUSS Working Group WRB, 2015). More details on the sampling sites are given in Tables S1 and S2 and Butenko et al (2017).…”

Section: Methodsmentioning

confidence: 99%

Different groups of ground‐dwelling spiders share similar trophic niches in temperate forests

Zuev

Heidemann

Leonov

et al. 2020

Ecological Entomology

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1. Generalistic interactions between predator and prey may vary with ecosystem type, predator traits, and prey traits, but the interplay of these factors has not been assessed in ground food webs. 2. We investigated trophic interactions of ground-dwelling spiders across eight forests in European Russia associated with body size, hunting strategy, microhabitat specialization, potential prey type, potential prey population density, and forest type (coniferous vs. broadleaved). We analyzed 128 individual spiders, including juveniles, all identified to the family level with two complementary methods: molecular gut content analysis, and stable isotope analysis of carbon and nitrogen. 3. The results suggest that feeding frequency of spiders is affected by predator body size and by selection of certain prey type. Stable isotope analysis showed similar trophic niches among spider families, varying moderately with forest type. Larger spiders had higher Δ 13 C values than smaller ones, but similar Δ 15 N values, suggesting that different size classes of spiders belong to different food chains. Results based on stable isotope and molecular gut content analyses were weakly linked, indicating them targeting different trophic niche dimensions. 4. At least for the group-level interactions, family identity and hunting strategy of predator has little predictive power while predator body size and prey traits affected trophic niche dimensions calling for future studies in this direction. Large spiders feed more and rely on different basal resources than small spiders, suggesting that including small species and juveniles provides a more comprehensive picture of food web organization.

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Section: Methodsmentioning

confidence: 99%

Different groups of ground‐dwelling spiders share similar trophic niches in temperate forests

Zuev

Heidemann

Leonov

et al. 2020

Ecological Entomology

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“…In surface fire, only the lower forest tier, especially the forest floor, burns out. Under these conditions, invertebrates could extinct as a result of fire impact, as well as losing the necessary resources (Niklasson & Granström, 2000;Swengel, 2001;Gongalsky & Persson, 2013;Butenko et al, 2017). Under crown fire influence, the entire ecosystem could be disturbed.…”

Section: Introductionmentioning

confidence: 99%

Post-fire fauna of carabid beetles (Coleoptera, Carabidae) in forests of the Mordovia State Nature Reserve (Russia)

Ruchin¹,

Алексеев²,

Khapugin³

et al. 2019

Nat. Conserv. Res.

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Wildfires are among the basic ecological factors that change habitats and initiate the succession of new forest communities. Burned areas are ephemeral habitats presenting a broad range of ecological niches that many insect species may exploit. In 2016, we studied the carabid fauna in burned pine forests of the Mordovia State Nature Reserve (European Russia). Sixty carabid beetles in total were collected in an unburned (control) area and on sites damaged by crown fire and surface fire. Carabids were more numerous and diverse in the burned areas, compared to the unburned forest, while the catch index was significantly higher in unburned area. This was due to the extremely high dynamic density of Carabus arcensis on the control site, while it was ten times lower in the burned area. The number of carabid species tended to increase in the sequence unburned forest-forest impacted by surface fire-forest impacted by crown fire. Expectedly, species compositions were more similar between firedamaged areas, while there was a higher difference between the unburned site and area damaged by crown fire. Concerning trophic group classification, all carabid beetles were distinguished in two groups, zoophagous species and myxophytophagous species. In both groups, the species number increases in the sequence from unburned areas to the forest impacted by crown fire. Finally, the dynamic density of some carabids (e.g. Poecilus lepidus, P. versicolor, Harpalus tardus, H. rufipes, H. rubripes, Cicindela sylvatica) largely increased after fire impact, while it decreased for the most other species. Our results suggest that burning of the forest stand may support some carabid species, i.e. larger forest fire increases species richness of beetle fauna. The highest dynamic density of the carabids is maintained by a few beetle species (Carabus arcensis, C. hortensis, Pterostichus oblongopunctatus).

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“…OTU 147 merely assigned to Rhabditida was abundant in the 2-year greenhouse. Generally, Rhabditida as bacterial feeder with high percentage are usually observed from many ecological soil [46,47]. The discrimination in the dominant nematode groups in the two types of greenhouses partly reflected the differences in the soil nematode community between the 2-year greenhouse and the 10-year greenhouse.…”

Section: Discussionmentioning

confidence: 99%

Dynamics of Soil Nematode Communities Revealed Significant Variation in Greenhouse with Different Continuous Cropping Years

Tian

Zhao

Mao

et al. 2019

Preprint

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22 Continuous cropping usually resulted in a series of soil problems, especially root knot nematode 23 disaster in greenhouse because of imbalance in soil nematode community. However, the dynamic 24 change in soil nematode community in greenhouse with various continuous cropping years during 25 plant growing season is unclear. Here, soil nematode communities in greenhouse after 2 and 10 26 years of continuous cropping were comparatively analyzed using 18S rDNA high-throughput 27 sequencing to reveal the changing processes in soil nematode communities. Compared to the 28 2-year greenhouse, soil in the 10-year greenhouse showed soil acidification, nutrients 29 accumulation, salinization. In term of α-diversity, Bacterial-feeding nematodes (BF) were 30 dominant in the 2-year greenhouse over the whole growing season, but plant-parasitic nematodes 31 (PP) became the dominant group in the 10-year greenhouse in the late growing season. 32 Meloidogyne gradually became the dominant group (Relative abundance 70.9%) in the 10-year 33 greenhouse, while Rhabditidae (Relative abundance from 99.8% to 26.8%) was the predominant 34 members in the 2-year greenhouse. For β-diversity, hierarchical clustering analysis, unWeighted 35 UniFrac principal component analysis (PCA) and principal co-ordinates analysis (PCoA) all 36 revealed that soil nematode communities in the two types of greenhouses exhibited significant 37 differences. Redundancy analysis (RDA) showed that soil nematode communities in the 10-year 38 greenhouse were related to high soil organic material, total nitrogen, electrical conductivity and 39 disease index of root knot nematode. Fisher' exact test and Pearson correlation coefficients 40 revealed that Meloidogyne caused main differences in soil nematode communities between the 41 two types of greenhouses. Meanwhile, population dynamics of Meloidogyne were divided into 42 dormant phase, low-level increasing phase and exponential phase during the whole season. In total, 43 the significant variation led different dynamics of soil nematode communities in the 2-year and 44 10-year greenhouse.45

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Forest fires alter the trophic structure of soil nematode communities

Cited by 39 publications

References 48 publications

Different groups of ground‐dwelling spiders share similar trophic niches in temperate forests

Different groups of ground‐dwelling spiders share similar trophic niches in temperate forests

Post-fire fauna of carabid beetles (Coleoptera, Carabidae) in forests of the Mordovia State Nature Reserve (Russia)

Dynamics of Soil Nematode Communities Revealed Significant Variation in Greenhouse with Different Continuous Cropping Years

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