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Forest management and the stand age play key roles in determining the composition of soil biota, including nematodes. We analysed the effect of the interaction between stands of natural forest and stands influenced by human activity on nematode communities, necessary for realistically assessing the specific potentials of forest soils, plant protection, forest management, and land use management. Nematode communities were evaluated and compared in managed beech and spruce forests in three age classes (0–20, 40–60, and 100–120 years old) and an unmanaged old-growth temperate forest. A total of 51 nematode genera were found in the forests. The number of nematode genera was the highest (46) in European beech forests, dominated by Rhabditis and Filenchus. In contrast, the number of nematode genera was the lowest (37) in a Norway spruce forest, but where nematode abundance was the highest due mostly to the high abundance of bacterivorous nematodes such as Acrobeloides, Plectus, and Rhabditis. The unmanaged old-growth forest had the lowest nematode abundance and total biomass but the highest abundance of herbivorous nematodes of the order Tylenchida, especially Filenchus, Malenchus, and Paratylenchus, and a high abundance of identified genera of predators. The number of identified nematode genera, abundance, total biomass, and diversity index were the highest in young 0–20-year-old stands, and the lowest in 100–120-year-old stands. Enrichment, structure, and basal indices were influenced by both the stands and the ages of the forests.
Andrea Čerevková; Marek Renčo; Dana Miklisová; Erika Gömöryová. Soil Nematode Communities in Managed and Natural Temperate Forest. Diversity 2021, 13, 327 .
AMA StyleAndrea Čerevková, Marek Renčo, Dana Miklisová, Erika Gömöryová. Soil Nematode Communities in Managed and Natural Temperate Forest. Diversity. 2021; 13 (7):327.
Chicago/Turabian StyleAndrea Čerevková; Marek Renčo; Dana Miklisová; Erika Gömöryová. 2021. "Soil Nematode Communities in Managed and Natural Temperate Forest." Diversity 13, no. 7: 327.
Summary Integrated studies are required to better understand the relationships between groups of soil microfauna under the influence of various biotic and abiotic factors that drive and characterise ecosystems. We analysed soil nematode communities and microbial diversity and the properties of three soil types to assess the effect of these environmental variables on biological diversity in natural (forest), semi-natural (meadow), and managed (agriculture) habitats of the Slovak Republic. The type of ecosystem and soil and the interaction of both factors had considerable effects on most monitored abiotic and biotic soil properties. The forest with a Chernozem soil had the most nematode species, highest nematode diversity, highest abundance of nematode within functional guilds, best values of ecological and functional indices, highest microbial biomass, highest microbial richness and diversity, and the highest values of various soil properties, followed by meadows with a Cambisol soil. The agricultural ecosystem with a Stagnosol soil had the lowest biological diversity and values of the soil properties. Several nematode species were new for Slovak nematode fauna. Sampling date and the interaction of all three factors (ecosystem × soil × date) had minor or no effect on most of the parameters, except soil moisture content, microbial richness, nematode channel ratio, nematode maturity index, and plant parasitic index. Both the biological indicators and basic soil properties indicated that the natural forest with a Chernozem soil was the best habitat from an ecological point of view. This ecosystem is thus the most appropriate for ecological studies.
M. Renčo; E. Gömöryová; Andrea Cerevkova. The effect of soil type and ecosystems on the soil nematode and microbial communities. Helminthologia 2020, 57, 129 -144.
AMA StyleM. Renčo, E. Gömöryová, Andrea Cerevkova. The effect of soil type and ecosystems on the soil nematode and microbial communities. Helminthologia. 2020; 57 (2):129-144.
Chicago/Turabian StyleM. Renčo; E. Gömöryová; Andrea Cerevkova. 2020. "The effect of soil type and ecosystems on the soil nematode and microbial communities." Helminthologia 57, no. 2: 129-144.
Andrea Čerevková; Kristina Ivashchenko; Dana Miklisová; Nadezhda Ananyeva; Marek Renčo. Influence of invasion by Sosnowsky’s hogweed on nematode communities and microbial activity in forest and grassland ecosystems. Global Ecology and Conservation 2019, 21, 1 .
AMA StyleAndrea Čerevková, Kristina Ivashchenko, Dana Miklisová, Nadezhda Ananyeva, Marek Renčo. Influence of invasion by Sosnowsky’s hogweed on nematode communities and microbial activity in forest and grassland ecosystems. Global Ecology and Conservation. 2019; 21 ():1.
Chicago/Turabian StyleAndrea Čerevková; Kristina Ivashchenko; Dana Miklisová; Nadezhda Ananyeva; Marek Renčo. 2019. "Influence of invasion by Sosnowsky’s hogweed on nematode communities and microbial activity in forest and grassland ecosystems." Global Ecology and Conservation 21, no. : 1.
Urban and industrial developments were the reason for draining peatlands in the past which caused changes in their ecology. Restoration of the water regime aims to bring back their original functions. This study examines the natural recovery of peatland following re-wetting, blocking the drainage ditches. We used soil microbial activity, physicochemical properties and nematode communities as indicator taxa to describe restoration status five years after management. Data were compared to those obtained from adjacent degraded forest and meadow like habitats of former peatlands. Our results indicate that re-wetting had considerable effect to soil indices and nematodes. Soil moisture and organic carbon significantly increased, while pH has not changed. In contrast, soil enzymatic activity significantly decreased after re-wetting in the restored part of the peatland compared to the degraded habitats. These conditions were probably less favourable for small metazoans, because of their abundance; species number and diversity were significantly decreased after re-wetting management. The nematode trophic structure was also significantly degraded; the restored part of peatland had less omnivore and predators as well as plant parasites. We conclude that in respect to both biological indicators and basic soil properties analysed, blocking of drainage ditches creates capable conditions for natural peatland restoration.
Lenka Bobuľská; Lenka Demková; Andrea Cerevkova; Marek Renčo. Impact of Peatland Restoration on Soil Microbial Activity and Nematode Communities. Wetlands 2019, 40, 865 -875.
AMA StyleLenka Bobuľská, Lenka Demková, Andrea Cerevkova, Marek Renčo. Impact of Peatland Restoration on Soil Microbial Activity and Nematode Communities. Wetlands. 2019; 40 (4):865-875.
Chicago/Turabian StyleLenka Bobuľská; Lenka Demková; Andrea Cerevkova; Marek Renčo. 2019. "Impact of Peatland Restoration on Soil Microbial Activity and Nematode Communities." Wetlands 40, no. 4: 865-875.
Windstorms can often decrease the diversity of native local biota in European forests. The effects of windstorms on the species richness of flora and fauna in coniferous forests of natural reserves are well established, but the effects on biotas in productive deciduous forests have been less well studied. We analyzed the impact of windstorms on the diversity and abundance of soil nematode communities and microbial activity and their relationships with the succession of plant species and basic soil physicochemical properties 12 and 36 months after a windstorm in Fagus sylvatica forests. The relationships were investigated in cleared early-successional forest ecosystems and at undamaged forest sites as a control. The windstorm significantly affected total nematode abundance, number of nematode species, and the diversity and abundance of all nematode functional guilds, but no functional guilds disappeared after the disturbance. The abundance of several nematode taxa but not total nematode abundance was positively correlated with soil-moisture content. Indices of the nematode communities were inconsistent between sites due to their variable ability to identify ecosystem disturbance 12 months after the storm. In contrast, the metabolic activity of various functional groups identified ecosystem disturbance well throughout the study. Positive correlations were identified between the number of plant parasites and soil-moisture content and between carnivore abundance and soil pH. Positive mutual links of some nematode genera (mainly plant parasites) with the distribution of dominant grasses and herbs depended on the habitat. In contrast, microbial activity differed significantly between disturbed and undisturbed sites up to 36 months after the storm, especially soil basal respiration, N mineralization, and microbial biomass. Our results indicated different temporal responses for two groups of soil organisms to the destruction of the tree canopy. Soil nematodes reacted immediately, but changes in the microbial communities were visible much later after the disturbance.
Marek Renčo; Andrea Čerevková; Erika Gömöryová. Soil Nematode Fauna and Microbial Characteristics in an Early-Successional Forest Ecosystem. Forests 2019, 10, 888 .
AMA StyleMarek Renčo, Andrea Čerevková, Erika Gömöryová. Soil Nematode Fauna and Microbial Characteristics in an Early-Successional Forest Ecosystem. Forests. 2019; 10 (10):888.
Chicago/Turabian StyleMarek Renčo; Andrea Čerevková; Erika Gömöryová. 2019. "Soil Nematode Fauna and Microbial Characteristics in an Early-Successional Forest Ecosystem." Forests 10, no. 10: 888.
A giant goldenrod plant, Solidago gigantea, native to North America is rapidly spreading in Europe and may have serious impact on ecosystems that inhabit. There is a lack of information about the effects of this species on soil biochemical properties and distribution and activity of microbial community. We analyzed soil physicochemical properties (soil reaction, soil moisture content, organic carbon and total nitrogen content) associated with activity of microbial population (activity of fluorescein diacetate (FDA), beta-glucosidase, urease and phosphatases enzymes) between invaded and adjacent uninvaded control sites in two habitats, forest and grassland, in the lowland of southeast Slovakia during years 2016 and 2017. The results revealed that invasion of S. gigantea significantly altered several soil properties and is associated with different soil properties. Soil acidity increased, organic carbon and moisture content decreased, while total nitrogen content was not significantly affected by invasion. FDA and urease activity were significantly higher in uninvaded sites. In contrast, beta-glucosidase and alkaline phosphatase activity were enhanced by S. gigantea invasion in both ecosystems studied. Acid phosphatase was not affected by the invasion. Our study proved that S. gigantea can influence several soil microbial properties while others remained unaffected, despite its significant impact on basal soil physicochemical properties.
Lenka Bobulska; Lenka Demková; Andrea Čerevková; Marek Renčo. Invasive Goldenrod (Solidago gigantea) Influences Soil Microbial Activities in Forest and Grassland Ecosystems in Central Europe. Diversity 2019, 11, 134 .
AMA StyleLenka Bobulska, Lenka Demková, Andrea Čerevková, Marek Renčo. Invasive Goldenrod (Solidago gigantea) Influences Soil Microbial Activities in Forest and Grassland Ecosystems in Central Europe. Diversity. 2019; 11 (8):134.
Chicago/Turabian StyleLenka Bobulska; Lenka Demková; Andrea Čerevková; Marek Renčo. 2019. "Invasive Goldenrod (Solidago gigantea) Influences Soil Microbial Activities in Forest and Grassland Ecosystems in Central Europe." Diversity 11, no. 8: 134.
Relationships between alien plant species and their aboveground effects have been relatively well studied, but little is known about the effects of invasive plants on belowground faunal communities. Nematodes are abundant, ubiquitous and diverse soil biota, and alterations of their community compositions can illustrate changes in belowground ecosystems. In 2016 and 2017, we determined the response of species diversity, community composition and trophic composition of the soil nematode communities to invasion by the alien plant Solidago gigantea in two ecosystems, forest and grassland, where invasion takes place. Nematode abundance was higher and number of identified nematode species was lower at invaded than uninvaded sites, indicated by lower species diversity, regardless of ecosystem. Herbivorous nematodes were the most affected trophic group. Herbivore abundance was higher at invaded than uninvaded sites and in grassland than forest. The herbivorous species Boleodorus thylactus, Geocenamus sp., Helicotylenchus spp., Paratylenchus bukowinensis, Pratylenchoides crenicauda and Rotylenchus robustus were more abundant at the invaded sites. Abundances of nematodes in the other tropic groups were limited or not affected. The invasion did not significantly affect the ecological and functional indices, except for the Channel Index in 2016. Differences were observed in values of Enrichment Index (indicator of resource availability), Channel Index (indicator of ascendant bacterial/fungal decomposition channel) and Basal Index (indicator of depleted-perturbed soil food webs) between grassland and forests. We can thus conclude that invasion by S. gigantea significantly alters nematode community indicators (abundance, species diversity and specific trophic groups); however, this effect seems to be significantly influenced by the type of ecosystem where invasion takes place.
A. Čerevková; D. Miklisová; L. Bobuľská; M. Renčo. Impact of the invasive plant Solidago gigantea on soil nematodes in a semi-natural grassland and a temperate broadleaved mixed forest. Journal of Helminthology 2019, 94, 1 -14.
AMA StyleA. Čerevková, D. Miklisová, L. Bobuľská, M. Renčo. Impact of the invasive plant Solidago gigantea on soil nematodes in a semi-natural grassland and a temperate broadleaved mixed forest. Journal of Helminthology. 2019; 94 ():1-14.
Chicago/Turabian StyleA. Čerevková; D. Miklisová; L. Bobuľská; M. Renčo. 2019. "Impact of the invasive plant Solidago gigantea on soil nematodes in a semi-natural grassland and a temperate broadleaved mixed forest." Journal of Helminthology 94, no. : 1-14.
Summary Thousands of plant species have been introduced, both deliberately and accidentally, to native ecosystems across the globe. The common milkweed, Asclepias syriaca, is an invasive fast-growing plant species that has invaded natural and managed areas in Europe in recent years. However, only a few studies have investigated its impacts on above-ground and below-ground native biota. Soil nematodes are considered to be the most abundant metazoans, comprising different trophic groups. We examined soil nematode populations on several independent sites invaded and non-invaded by A. syriaca in southern Slovak Republic. We hypothesised that alteration of above-ground nutrient sources caused by invasion would alter nematode abundance, species diversity and trophic structure. Our study revealed that the nematode communities were not negatively affected by A. syriaca invasion over a period of two vegetation seasons. The most surprising results were that common milkweed did not decrease the abundance of plant parasites, bacterivores or fungivores and did not affect species diversity. Moreover, basic physicochemical soil parameters were similar in both invaded and non-invaded sites, although there is evidence that invasive milkweed considerably decreases native plant species cover. It is thus reasonable to conclude that A. syriaca does not pose a threat to soil nematode communities but has a negative impact on native plants. As there is an absence of nematological studies from A. syriaca-invaded ecosystems and considering it has invaded a wide range of habitats, it is impossible to generalise our findings and further studies are required.
Jana Jurová; Marek Renčo; Erika Gömöryová; Andrea Cerevkova. Effects of the invasive common milkweed (Asclepias syriaca) on nematode communities in natural grasslands. Nematology 2019, 22, 423 -438.
AMA StyleJana Jurová, Marek Renčo, Erika Gömöryová, Andrea Cerevkova. Effects of the invasive common milkweed (Asclepias syriaca) on nematode communities in natural grasslands. Nematology. 2019; 22 (4):423-438.
Chicago/Turabian StyleJana Jurová; Marek Renčo; Erika Gömöryová; Andrea Cerevkova. 2019. "Effects of the invasive common milkweed (Asclepias syriaca) on nematode communities in natural grasslands." Nematology 22, no. 4: 423-438.
This study determined the effect of the invasive plant Fallopia japonica on soil physical properties, microbial respiration, microbial biomass carbon content, enzymatic activities, and soil nematode communities. We established in total 30 plots in three natural habitats (forest, grassland, wetland) that were either uninvaded or mostly monospecifically invaded by F. japonica. The soil physical and microbial properties differed among the investigated plots, but the differences were observed to be non-significant between the invaded and the uninvaded plots. Non-metric multidimensional scaling based on nematode species diversity indicated that the total number of identified nematode species and their abundance were higher in the uninvaded compare to the invaded plots. Negative effect of F. japonica on omnivores, plant parasites, and root-fungal feeder nematodes was confirmed by their lower abundance in the invaded compared to the uninvaded plots. In the invaded plots, we also confirmed lower Maturity and Channel index, but higher Enrichment index. Our results thus indicated that the invasive plant F. japonica could affect nematode communities, more than physical or microbial properties, regardless of habitat. This study determined the effect of the invasive plant Fallopia japonica on soil physical properties, microbial respiration, microbial biomass carbon content, enzymatic activities, and soil nematode communities. We established in total 30 plots in three natural habitats (forest, grassland, wetland) that were either uninvaded or mostly monospecifically invaded by F. japonica. The soil physical and microbial properties differed among the investigated plots, but the differences were observed to be non-significant between the invaded and the uninvaded plots. Non-metric multidimensional scaling based on nematode species diversity indicated that the total number of identified nematode species and their abundance were higher in the uninvaded compare to the invaded plots. Negative effect of F. japonica on omnivores, plant parasites, and root-fungal feeder nematodes was confirmed by their lower abundance in the invaded compared to the uninvaded plots. In the invaded plots, we also confirmed lower Maturity and Channel index, but higher Enrichment index. Our results thus indicated that the invasive plant F. japonica could affect nematode communities, more than physical or microbial properties, regardless of habitat.
Andrea Cerevkova; Lenka Bobulska; Dana Miklisová; Marek Renčo. A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe. Journal of Nematology 2019, 51, 1 -16.
AMA StyleAndrea Cerevkova, Lenka Bobulska, Dana Miklisová, Marek Renčo. A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe. Journal of Nematology. 2019; 51 ():1-16.
Chicago/Turabian StyleAndrea Cerevkova; Lenka Bobulska; Dana Miklisová; Marek Renčo. 2019. "A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe." Journal of Nematology 51, no. : 1-16.
Transgenic maize expressing the Bacillus thuringiensis (Bt) insecticidal crystal (Cry1Ab) protein is poisonous to lepidopterans including the European Corn Borer (Ostrinia nubilalis). In many European countries, commercial cultivation of Bt maize is not allowed. One major reason is the potential variation of the environmental risk across different biogeographical regions. The aim of this study was to collect data about soil nematode communities as bioindicators of unintended effects across geographically diverse maize growing regions in Europe by sampling field sites in Denmark, Slovakia, and Sweden during 2013–2014, and in Spain during 2013. DKC3872YG (Bt maize line MON810) and its near-isogenic line DKC3871 were grown at the sites in Slovakia, Denmark, and Sweden and hybrids DKC6451YG (Bt maize line MON810) and its near-isogenic line DKC6450 were cultivated at the site in Spain. Dominating nematode genera in the maize fields regardless of the field site or maize variants were bacterial feeders Rhabditis, Acrobeloides; root-fungal feeders Filenchus; fungal feeders Aphelenchoides, Aphelenchus; and omnivores Eudorylaimus. A significant effect of the field site location on the total nematode abundance, nematode abundance in trophic groups, diversity of nematode genera, and ecological and functional nematode indices was detected. Significant annual variation was found in the Plant parasite and Structure indices. There were significant differences in the abundances of omnivores and root-fungal feeders and in the Maturity, Channel, and Enrichment indices between Bt and non-Bt maize plots in Denmark in 2013, and in the abundance of fungal feeders in Sweden (2013). On the other hand, no difference was found between the Bt and non-Bt plots at the sites in Spain and Slovakia or at any of the sites in 2014. The effect of the field site location and season on the soil nematode community was more pronounced than that of the Bt genetic modification. We conclude that Bt maize had only a limited or no effect on soil nematode communities.
Andrea Cerevková; Dana Miklisová; Márton Szoboszlay; Christoph C. Tebbe; Ludovit Cagan. The responses of soil nematode communities to Bt maize cultivation at four field sites across Europe. Soil Biology and Biochemistry 2018, 119, 194 -202.
AMA StyleAndrea Cerevková, Dana Miklisová, Márton Szoboszlay, Christoph C. Tebbe, Ludovit Cagan. The responses of soil nematode communities to Bt maize cultivation at four field sites across Europe. Soil Biology and Biochemistry. 2018; 119 ():194-202.
Chicago/Turabian StyleAndrea Cerevková; Dana Miklisová; Márton Szoboszlay; Christoph C. Tebbe; Ludovit Cagan. 2018. "The responses of soil nematode communities to Bt maize cultivation at four field sites across Europe." Soil Biology and Biochemistry 119, no. : 194-202.
Summary Nematode communities in a Norway spruce forest in High Tatra National Park, Slovakia were monitored for the period of several years (2006 and 2013). Unfortunately, in May 2014 natural windstorm damaged the forest. This disastrous event, together with preliminary obtained results allowed us to compare the direct impact of windstorm damage of forest habitat on soil nematode assemblages. The forest destruction by windstorm had a significant effect on the total nematode abundance, the abundance of omnivores and herbivores, as well as the nematode species diversity. The most dominant species, representing 55 % of the total nematode fauna, in the plot studied were Acrobeloides nanus followed by Malenchus exiguus, Filenchus vulgaris, Plectus communis, Plectus parvus and Tylencholaimus mirabilis. The abundance of bacterivorous signifi cantly increased after the windstorm, meanwhile the abundance of omnivores, fungivores, and herbivores ectoparasites and epidermal/root hair feeders showed an opposite trend. Of the evaluative indicators, Shannon species diversity (H’spp), maturity index (MI), maturity index 2-5 (MI2-5), sigma maturity index (ΣMI), enrichment index (EI) and structure index (SI) decreased significantly after windstorm. The EI and SI indexes characterized soil ecosystems before windstorm (2006 - 2013) as maturing with low or moderate disturbance, but soil ecosystems shortly after the windstorm (2014) were degraded and nutrient depleted. This also corresponded with graphical display of metabolic footprints characteristics of soil food web. Overall, the nematode communities differed significantly before and after forest damage. These results suggest the role of nematode communities as indicators of environment condition quality or its disruption.
M. Renčo; Andrea Cerevkova. Windstorms as mediator of soil nematode community changes: Evidence from European spruce forest. Helminthologia 2017, 54, 36 -47.
AMA StyleM. Renčo, Andrea Cerevkova. Windstorms as mediator of soil nematode community changes: Evidence from European spruce forest. Helminthologia. 2017; 54 (1):36-47.
Chicago/Turabian StyleM. Renčo; Andrea Cerevkova. 2017. "Windstorms as mediator of soil nematode community changes: Evidence from European spruce forest." Helminthologia 54, no. 1: 36-47.
A. Čerevková; D. Miklisová; Ľ. Cagáň. Effects of experimental insecticide applications and season on soil nematode communities in a maize field. Crop Protection 2017, 92, 1 -15.
AMA StyleA. Čerevková, D. Miklisová, Ľ. Cagáň. Effects of experimental insecticide applications and season on soil nematode communities in a maize field. Crop Protection. 2017; 92 ():1-15.
Chicago/Turabian StyleA. Čerevková; D. Miklisová; Ľ. Cagáň. 2017. "Effects of experimental insecticide applications and season on soil nematode communities in a maize field." Crop Protection 92, no. : 1-15.
Marek Renčo; Andrea Cerevkova; Zuzana Homolová; Erika Gömöryová. Long-term effects on soil nematode community structure in spruce forests of removing or not removing fallen trees after a windstorm. Forest Ecology and Management 2015, 356, 243 -252.
AMA StyleMarek Renčo, Andrea Cerevkova, Zuzana Homolová, Erika Gömöryová. Long-term effects on soil nematode community structure in spruce forests of removing or not removing fallen trees after a windstorm. Forest Ecology and Management. 2015; 356 ():243-252.
Chicago/Turabian StyleMarek Renčo; Andrea Cerevkova; Zuzana Homolová; Erika Gömöryová. 2015. "Long-term effects on soil nematode community structure in spruce forests of removing or not removing fallen trees after a windstorm." Forest Ecology and Management 356, no. : 243-252.
Summary The aim of this study was to determine the effects of Bt maize hybrid cultivation on soil nematode communities in two field trials, as well as to analyse other factors (fertilisation and moisture) responsible for the community structure of soil nematodes. Nematode communities were studied in maize plots at the locality of Borovce in western Slovakia. During 2012 and 2013, hybrids DK440 and DKC3871 (conventional) or DKC4442YG and DKC3872YG (Bt maize, event MON810) were sown in 10 repetitions each. Nematodes were extracted from soil samples collected at the maize flowering (July 11, 2012 and July 30, 2013). Altogether, 39 nematode species belonged to 35 genera were identified in two maize variants. The dominant taxa in both variants were Acrobeloides nanus, Ce-phalobus persegnis, Aphelenchoides composticola, Aphelenchus avenae, Eudorylaimus carteri and Filenchus vulgaris. Calculation of the maturity index, plant parasitic index, enrichment index and structure index did not confirm any clear influence of year or hybrid type on soil nematode communities. The proportional representation of cp-1, cp-2 and cp-3-5 groups of nematode fauna indicated conditions of low stability and high stress. Faunal profiles representing the structure and enrichment conditions of the soil food web showed an environment with a high C:N ratio and high levels of fungal feeders. Based on the calculation of the metabolic footprint of nematodes in the soil food web, a difference between the isoline maize variant and Bt maize variant in 2012 was found, but this difference was not readily apparent in 2013. The occurrence of nematodes, their abundance, proportion of feeding types and selected ecological indices did not depend on the type of maize hybrid (Bt or non-Bt). Thus, the cultivation of genetically modified maize did not directly influence nematode populations. The application of fertiliser at certain periods does not influence the nematode community. The observed significant higher abundance of nematodes was correlated with soil moisture.
A. Čerevková; L Cagáň. Effect of transgenic insect-resistant maize to the community structure of soil nematodes in two field trials. Helminthologia 2015, 52, 41 -49.
AMA StyleA. Čerevková, L Cagáň. Effect of transgenic insect-resistant maize to the community structure of soil nematodes in two field trials. Helminthologia. 2015; 52 (1):41-49.
Chicago/Turabian StyleA. Čerevková; L Cagáň. 2015. "Effect of transgenic insect-resistant maize to the community structure of soil nematodes in two field trials." Helminthologia 52, no. 1: 41-49.
This study evaluated the effect of a wildfire on soil nematode communities in the spruce forest ecosystem of the High Tatra Mountains 8 years after the fire. Two plots were established, an intact control plot (REF) and a fire-damaged plot after a windstorm (FIR). A total of 20 representative soil samples were collected; 10 from each site (five in June and five in October). A total of 64 species of nematodes were recorded. The mean number of species 8 years after the fire ranged from 24 to 36 and was always significantly higher in REF than in FIR (P < 0.05); with a significantly higher Shannon–Weaver diversity index in REF. Bacterivores were the most abundant trophic group at both sites. Omnivores were more abundant in FIR than in REF, and predators were more abundant in REF. The most abundant species at both sites were Acrobeloides nanus, Aglenchus agricola, Malenchus exiguus and Paratylenchus microdorus. Epidermal or root-hair feeders, mainly Malenchus exiguus, were the most abundant plant-parasitic nematodes at both sites, followed by the ectoparasitic P. microdorus. The migratory endoparasite, Pratylenchus pratensis, was found only in FIR in relatively high numbers, whereas the ectoparasitic species Criconemoides morgensis, Crossonema menzeli and Ogma cobbi occupied only REF. Nematode abundance and species diversity index differed significantly between the disturbed and undisturbed habitats, but ecological and functional indices and metabolic footprints indicate that the soil ecosystem 8 years after the fire had recovered, with moderate levels of nutrient enrichment comparable to those of the control plot.
Marek Renčo; Andrea Cerevkova. Long-term effects of a wildfire on the soil nematode communities in the spruce forest ecosystem of High Tatra National Park. International Journal of Wildland Fire 2015, 24, 702 -711.
AMA StyleMarek Renčo, Andrea Cerevkova. Long-term effects of a wildfire on the soil nematode communities in the spruce forest ecosystem of High Tatra National Park. International Journal of Wildland Fire. 2015; 24 (5):702-711.
Chicago/Turabian StyleMarek Renčo; Andrea Cerevkova. 2015. "Long-term effects of a wildfire on the soil nematode communities in the spruce forest ecosystem of High Tatra National Park." International Journal of Wildland Fire 24, no. 5: 702-711.
Bursaphelenchus xylophilus is the main causal agent of the pine wilt disease and a worldwide pest with high economic impact. As a serious invasive and destructive species, it is listed as a quarantine pest in the legislation of more than 40 countries. B. xylophilus was reported for the first time in Europe in Portugal in 1999 and in 2008 the whole country has been considered an affected area. In 2008, presence of B. xylophilus was confirmed in Spain. This paper reports on the biology, introduction, spread and the control of B. xylophilus as potential risk element in European coniferous forests.
Andrea Cerevkova; Manuel Mota; Paulo Vieira. Bursaphelenchus xylophilus (Steiner & Buhrer, 1934) Nickle 1970 – pinewood nematode: a threat to European forests. Forestry Journal 2014, 60, 125 -129.
AMA StyleAndrea Cerevkova, Manuel Mota, Paulo Vieira. Bursaphelenchus xylophilus (Steiner & Buhrer, 1934) Nickle 1970 – pinewood nematode: a threat to European forests. Forestry Journal. 2014; 60 (2):125-129.
Chicago/Turabian StyleAndrea Cerevkova; Manuel Mota; Paulo Vieira. 2014. "Bursaphelenchus xylophilus (Steiner & Buhrer, 1934) Nickle 1970 – pinewood nematode: a threat to European forests." Forestry Journal 60, no. 2: 125-129.
Western corn rootworm, Diabrotica virgifera virgifera, is a pest that needs to be controlled with chemicals in the maize monoculture. The aim of this study was to examine the influence of insecticides on nematode communities in a maize field. Four soil treatments were used in this experiment: variant 1 — a granular application with tefluthrin (199.5 g a.i./ha); variant 2 — a granular application with clothianidin (110 g a.i./ha); variant 3 — a seed treatment with clothianidin (1.25 μg a.i/seed); and control — a maize field without insecticides. During the investigated period, a total of 19 117 soil nematode individuals were captured and 9 orders, 33 genera and 37 species were identified. Acrobeloides nanus, Cephalobus persegnis, Eucephalobus striatus and Basiria gracilis were the dominant species, accounting for 48 % of the total number of individuals. The mean abundance and species diversity index were significantly lower for variant 2. Bacterial feeders were the dominant trophic group for all 4 variants. The numbers of nematodes in particular trophic groups (i.e., bacterial feeders, fungal feeders and omnivores) were significantly different between variant 2 and the control. The Σ Maturity index, Maturity index and Plant parasitic index did not show significant differences among the variants. The higher values of the Enrichment and Structure indices were observed in the first month of the investigation in all 4 variants. A cluster analysis showed that nematode species population densities were strongly affected by the date of soil sample collection and by the variants used in the experiment.
A. Čerevková; Ľ. Cagáň. The influence of Western corn rootworm seed coating and granular insecticides on the seasonal fluctuations of soil nematode communities in a maize field. Helminthologia 2013, 50, 205 -214.
AMA StyleA. Čerevková, Ľ. Cagáň. The influence of Western corn rootworm seed coating and granular insecticides on the seasonal fluctuations of soil nematode communities in a maize field. Helminthologia. 2013; 50 (3):205-214.
Chicago/Turabian StyleA. Čerevková; Ľ. Cagáň. 2013. "The influence of Western corn rootworm seed coating and granular insecticides on the seasonal fluctuations of soil nematode communities in a maize field." Helminthologia 50, no. 3: 205-214.
Nematodes are omnipresent in composts and are active in virtually all stages of the composting process. Major shifts in species composition, life strategies, and feeding behavior occur during the composting process. Due to the heat peak, nematodes can be virtually absent, but several taxa appear immediately when the temperatures drop. These comprise both taxa present before the heat peak and new taxa. However, it is not known how nematodes populate the compost. In this study, we aimed to assess the survival and colonization capacity of nematodes in compost. Our results showed that composting processes inaccessible to insects or not in contact with soil did not significantly influence nematode succession during composting. However, differences between treatments were found for some specific taxa (i.e., for Acrostichus sp., Neodiplogasteridae sp., Nygolaimoides sp., and Rhabditidae sp. 1), illustrating the importance of insects for the dispersal of nematodes to compost. Experiments in the lab with the blue bottle fly as a possible carrier demonstrated actual transport of nematodes isolated from compost by the fly (i.e., Halicephalobus cfr. gingivalis, Diploscapter coronatus, Diplogasteritus sp., Acrostichus sp., and Mesorhabditis sp.). Juveniles and dauer stages of Aphelenchoides sp., Panagrolaimus sp., and rhabditids survived an experimentally induced temperature peak, while members of Tylenchidae did not. In conclusion, our results indicate that the rapidly changing nematode community in compost is the result of both differential survival and colonization capacities.
Hanne Steel; Freija Verdoodt; Andrea Cerevkova; Marjolein Couvreur; Pamela Fonderie; Tom Moens; Wim Bert. Survival and colonization of nematodes in a composting process. Invertebrate Biology 2013, 132, 108 -119.
AMA StyleHanne Steel, Freija Verdoodt, Andrea Cerevkova, Marjolein Couvreur, Pamela Fonderie, Tom Moens, Wim Bert. Survival and colonization of nematodes in a composting process. Invertebrate Biology. 2013; 132 (2):108-119.
Chicago/Turabian StyleHanne Steel; Freija Verdoodt; Andrea Cerevkova; Marjolein Couvreur; Pamela Fonderie; Tom Moens; Wim Bert. 2013. "Survival and colonization of nematodes in a composting process." Invertebrate Biology 132, no. 2: 108-119.
The nematode communities in spruce forests were compared with the short-term effects of forest damage, caused by windstorm, wildfire and management practices of forest soils. Soil samples were collected in June and October from 2006 to 2008 in four different sites: (1) forest unaffected by the wind (REF); (2) storm-felled forest with salvaged timber (EXT); (3) modified forest affected by timber salvage (wood removal) and forest fire (FIR); and (4) storm-felled forest where timber had been left unsalvaged (NEX). Nematode analysis showed that the dominant species in all four investigated sites were Acrobeloides nanus and Eudorylaimus silvaticus. An increase of A. nanus (35% of the total nematode abundance) in the first year in the FIR site led to the highest total abundance of nematodes compared with other sites, where nematode abundance reached the same level in the third year. In the FIR site bacterial feeders appeared to be the most representative trophic group, although in the second and third year, after disturbance, the abundance of this trophic group gradually decreased. In the NEX site, the number of nematode species, population densities and Maturity Index were similar to that recorded for the FIR site. In EXT and NEX sites, the other dominant species was the plant parasitic nematode Paratylenchus microdorus. Analyses of nematodes extracted from different forest soil samples showed that the highest number of species and diversity index for species (H'spp) were in the REF site. Differences between the nematode fauna in REF and other localities were clearly depicted by cluster analysis. The greatest Structure Index and Enrichment Index values were also in REF. In the EXT site, the number of nematode species, their abundance, H'spp and Maturity Index were not significantly different from those recorded in the reference site.
A. Čerevková; Marek Renčo; L. Cagáň. Short-term effects of forest disturbances on soil nematode communities in European mountain spruce forests. Journal of Helminthology 2012, 87, 376 -385.
AMA StyleA. Čerevková, Marek Renčo, L. Cagáň. Short-term effects of forest disturbances on soil nematode communities in European mountain spruce forests. Journal of Helminthology. 2012; 87 (3):376-385.
Chicago/Turabian StyleA. Čerevková; Marek Renčo; L. Cagáň. 2012. "Short-term effects of forest disturbances on soil nematode communities in European mountain spruce forests." Journal of Helminthology 87, no. 3: 376-385.
Soil nematodes were studied in 27 birch forests in the Slovak and Czech Republics. A total of 66 nematode genera were found. The eudominant nematode genera were Rhabditis and Aphelenchoides, followed by dominant genera Cephalobus, Paratylenchus, Plectus, Helicotylenchus and Aglenchus. Nevertheless, only Rhabditis, Cephalobus, Plectus and Aphelenchoides were recorded in all investigated birch stands. The highest nematode abundance was recorded in the birch forest situated in the Drahanská Highland (the Czech Republic). All nematode trophic groups were present in the investigated birch forests, with bacteriovores being the dominant group, followed by plant-parasitic nematodes, fungal feeders, root-fungal feeders, omnivores and predators. Ecological evaluation of nematode communities based on ecological indices demonstrated that the conditions of the nematode communities in birch forests were rather stable with prevailing bacterial decomposition pathways, which reflects the dominance of bacteriovorous nematodes.
Marek Renčo; Václav Čermák; Andrea Čerevková. Composition of soil nematode communities in native birch forests in Central Europe. Nematology 2012, 14, 15 -25.
AMA StyleMarek Renčo, Václav Čermák, Andrea Čerevková. Composition of soil nematode communities in native birch forests in Central Europe. Nematology. 2012; 14 (1):15-25.
Chicago/Turabian StyleMarek Renčo; Václav Čermák; Andrea Čerevková. 2012. "Composition of soil nematode communities in native birch forests in Central Europe." Nematology 14, no. 1: 15-25.