The Experts below are selected from a list of 4989 Experts worldwide ranked by ideXlab platform
Honghua Ruan - One of the best experts on this subject based on the ideXlab platform.
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the abundance and community structure of Soil Arthropods in reclaimed coastal saline Soil of managed poplar plantations
Geoderma, 2018Co-Authors: Yueqin Chen, Han Y. H. Chen, Xiaoming Zou, Honghua RuanAbstract:Abstract Establishing poplar plantations is a common practice for improving the quality of reclaimed coastal saline Soils in Eastern China. The abundance and diversity of Arthropods can reflect changes in Soil quality. However, the extent to which intensive forest management serves to alter Soil arthropod communities remains elusive. In this study, we examined the effects of applying organic fertilizers (OF) and removing understory plants (UP) (two common practices to promote poplar growth) on the abundance and diversity of Soil Arthropods of poplar plantations in a reclaimed coastal area of Northern Jiangsu Province, China. We found that the OF addition significantly increased the total abundance of Soil Arthropods, and the abundance of Macrophytophages, Microphytophages and Omnivorous Acari, but decreased the total evenness. The removal of UP did not significantly influence the abundance and diversity of Soil Arthropods in the 0–20 cm Soil layer. Our results suggested that the OF addition is a preferable management practice to UP removal in order to elevate the abundance of Soil Arthropods while promoting poplar plantation productivity.
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Changes in Soil Arthropod Abundance and Community Structure across a Poplar Plantation Chronosequence in Reclaimed Coastal Saline Soil
MDPI AG, 2018Co-Authors: Han Y. H. Chen, Qianyun Song, Jiahui Liao, Shide Huang, Honghua RuanAbstract:Poplar plantations have the capacity to improve the properties of Soils in muddy coastal areas; however, our understanding of the impacts of plantation development on Soil Arthropods remains limited. For this study, we determined the community dynamics of Soil dwelling Arthropods across poplar plantations of different ages (5-, 10-, and 21-years) over the course of one year in Eastern Coastal China. The total abundance of Soil Arthropods differed with stand development. Further, there were some interactions that involved the sampling date. On average, total abundance was highest in the 10-year-old stands and lowest in the 5-year-old stands. Total abundance exhibited strong age-dependent trends in June and September, but not in March or December. The abundance of Prostigmata and Oribatida increased in the 5- to 21-year-old stands, with the highest levels being in the 10-year-old stands. The abundance of Collembola increased with stand development; however, the stand age had no significant impact on the abundance of epedapic, hemiedaphic, and euedaphic Collembola. Order richness (Hill number q = 0) curve confidence intervals overlapped among three stand ages. Shannon and Simpson diversity (Hill numbers q = 1 and q = 2) differed between 10- and 21-year-old stand age. They showed almost similar trends, and the highest and lowest values were recorded in the 21- and 10-year-old stand ages, respectively. Permutational multivariate analysis of variance demonstrated that composition also varied significantly with the sampling date and stand age, and the 10-year-old stands that were sampled in June stood well-separated from the others. Indicator analysis revealed that Scolopendromorpha and Prostigmata were indicators in June for the 10-year-old stands, while Collembola were indicators for the 21-year-old stands sampled in September. Our results highlight that both stand development and climate seasonality can significantly impact Soil arthropod community dynamics in the reclaimed coastal saline Soils of managed poplar plantations
Alfried P Vogler - One of the best experts on this subject based on the ideXlab platform.
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the limited spatial scale of dispersal in Soil Arthropods revealed with whole community haplotype level metabarcoding
Molecular Ecology, 2021Co-Authors: Paula Arribas, Carmelo Andujar, Antonia Salcescastellano, Brent C Emerson, Alfried P VoglerAbstract:Soil arthropod communities are highly diverse and critical for ecosystem functioning. However, our knowledge of spatial structure and the underlying processes of community assembly are scarce, hampered by limited empirical data on species diversity and turnover. We implement a high-throughput sequencing approach to generate comparative data for thousands of Arthropods at three hierarchical levels: genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement across these levels can reveal the predominant processes driving the variation in biological assemblages at the local scale. This multihierarchical approach was performed using haplotype-level COI metabarcoding of entire communities of mites, springtails and beetles from three Iberian mountain regions. Tens of thousands of specimens were extracted from deep and superficial Soil layers and produced comparative phylogeographic data for >1,000 codistributed species and nearly 3,000 haplotypes. Local assemblage composition differed greatly between grasslands and forests and, within each habitat, showed strong spatial structure and high endemicity. Distance decay was high at all levels, even at the scale of a few kilometres or less. The local distance decay patterns were self-similar for the haplotypes and higher hierarchical entities, and this fractal structure was similar in all regions, suggesting that uniform processes of limited dispersal determine local-scale community assembly. Our results from whole-community metabarcoding provide insight into how dispersal limitations constrain mesofauna community structure within local spatial settings over evolutionary timescales. If generalized across wider areas, the high turnover and endemicity in the Soil locally may indicate extremely high richness globally, challenging our current estimations of total arthropod diversity on Earth.
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the limited spatial scale of dispersal in Soil Arthropods revealed with whole community haplotype level metabarcoding
bioRxiv, 2020Co-Authors: Paula Arribas, Carmelo Andujar, Antonia Salcescastellano, Brent C Emerson, Alfried P VoglerAbstract:ABSTRACT Soil mesofauna communities are hyperdiverse and critical for ecosystem functioning. However, our knowledge on spatial structure and underlying processes of community assembly for Soil Arthropods is scarce, hampered by limited empirical data on species diversity and turnover. We implement a high-throughput-sequencing approach to generate comparative data for thousands of Arthropods at three hierarchical levels: genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement across these levels can reveal the predominant processes driving the variation in biological assemblages at the local scale. This multi-hierarchical approach was performed using haplotype-level-COI metabarcoding of entire communities of mites, springtails and beetles from three Iberian mountain regions. Tens of thousands of specimens were extracted from deep and superficial Soil layers and produced comparative phylogeographic data for >1000 co-distributed species and nearly 3000 haplotypes. Local assemblages were highly distinctive between grasslands and forests, and within each of them showed strong spatial structures and high endemicity at the scale of a few kilometres or less. The local distance-decay patterns were self-similar for the haplotypes and higher hierarchical entities, and this fractal structure was very similar in all three regions, pointing to a significant role of dispersal limitation driving the local-scale community assembly. Our results from whole-community metabarcoding provide unprecedented insight into how dispersal limitations constrain mesofauna community structure within local spatial settings over evolutionary timescales. If generalized across wider areas, the high turnover and endemicity in the Soil locally may indicate extremely high richness globally, challenging our current estimations of total arthropod-diversity on Earth.
Paula Arribas - One of the best experts on this subject based on the ideXlab platform.
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the limited spatial scale of dispersal in Soil Arthropods revealed with whole community haplotype level metabarcoding
Molecular Ecology, 2021Co-Authors: Paula Arribas, Carmelo Andujar, Antonia Salcescastellano, Brent C Emerson, Alfried P VoglerAbstract:Soil arthropod communities are highly diverse and critical for ecosystem functioning. However, our knowledge of spatial structure and the underlying processes of community assembly are scarce, hampered by limited empirical data on species diversity and turnover. We implement a high-throughput sequencing approach to generate comparative data for thousands of Arthropods at three hierarchical levels: genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement across these levels can reveal the predominant processes driving the variation in biological assemblages at the local scale. This multihierarchical approach was performed using haplotype-level COI metabarcoding of entire communities of mites, springtails and beetles from three Iberian mountain regions. Tens of thousands of specimens were extracted from deep and superficial Soil layers and produced comparative phylogeographic data for >1,000 codistributed species and nearly 3,000 haplotypes. Local assemblage composition differed greatly between grasslands and forests and, within each habitat, showed strong spatial structure and high endemicity. Distance decay was high at all levels, even at the scale of a few kilometres or less. The local distance decay patterns were self-similar for the haplotypes and higher hierarchical entities, and this fractal structure was similar in all regions, suggesting that uniform processes of limited dispersal determine local-scale community assembly. Our results from whole-community metabarcoding provide insight into how dispersal limitations constrain mesofauna community structure within local spatial settings over evolutionary timescales. If generalized across wider areas, the high turnover and endemicity in the Soil locally may indicate extremely high richness globally, challenging our current estimations of total arthropod diversity on Earth.
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the limited spatial scale of dispersal in Soil Arthropods revealed with whole community haplotype level metabarcoding
bioRxiv, 2020Co-Authors: Paula Arribas, Carmelo Andujar, Antonia Salcescastellano, Brent C Emerson, Alfried P VoglerAbstract:ABSTRACT Soil mesofauna communities are hyperdiverse and critical for ecosystem functioning. However, our knowledge on spatial structure and underlying processes of community assembly for Soil Arthropods is scarce, hampered by limited empirical data on species diversity and turnover. We implement a high-throughput-sequencing approach to generate comparative data for thousands of Arthropods at three hierarchical levels: genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement across these levels can reveal the predominant processes driving the variation in biological assemblages at the local scale. This multi-hierarchical approach was performed using haplotype-level-COI metabarcoding of entire communities of mites, springtails and beetles from three Iberian mountain regions. Tens of thousands of specimens were extracted from deep and superficial Soil layers and produced comparative phylogeographic data for >1000 co-distributed species and nearly 3000 haplotypes. Local assemblages were highly distinctive between grasslands and forests, and within each of them showed strong spatial structures and high endemicity at the scale of a few kilometres or less. The local distance-decay patterns were self-similar for the haplotypes and higher hierarchical entities, and this fractal structure was very similar in all three regions, pointing to a significant role of dispersal limitation driving the local-scale community assembly. Our results from whole-community metabarcoding provide unprecedented insight into how dispersal limitations constrain mesofauna community structure within local spatial settings over evolutionary timescales. If generalized across wider areas, the high turnover and endemicity in the Soil locally may indicate extremely high richness globally, challenging our current estimations of total arthropod-diversity on Earth.
Cristina Carlos - One of the best experts on this subject based on the ideXlab platform.
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Soil Arthropods in the douro demarcated region vineyards general characteristics and ecosystem services provided
Sustainability, 2021Co-Authors: Fatima Goncalves, José Alberto Pereira, Cristina Carlos, Luis C Crespo, Vera Zina, Amalia Oliveira, Juliana Salvacao, L TorresAbstract:Viticulture is one of the oldest and most profitable forms of agriculture; it is also one of the most intensive farming systems. As intensive cultivation threatens the environment, there is increasing interest in the concept of sustainability within the wine industry, as well as new business opportunities, as customers begin to pay more attention to environmental and sustainability issues. Recognizing the key role of Soil quality in environmentally and economically sustainable viticulture makes it essential to understand better Soil arthropod communities, given their crucial functions in maintaining Soil quality and health. The ‘Douro Demarcated Region’ (DDR) in northern Portugal offers good potential, in regards to biodiversity, due to its significant areas of non-crop habitats. This work aims to compile information on Soil arthropod communities (both Soil surface and Soil-living) collected in the DDR vineyard agroecosystems. A description of the ecosystem services provided by them, as a basis for the development and implementation of sustainable viticulture systems, is also an objective of this work. An important set of Soil Arthropods necessary for the delivery of vital ecosystem services for viticulture, with particular reference to supporting and regulating services, occurred in this ecosystem. Eight classes were chiefly represented in a sample of about 167,000 arthropod specimens: Arachnida, Chilopoda, Diplopoda, Entognatha, Insecta, Malacostraca, Pauropoda, and Symphyla. The most representative were Entognatha and Insecta in Soil-surface Arthropods, and Arachnida and Entognatha in Soil-living Arthropods. The presence of recognized groups as bioindicators in agroecosystems, such as Soil quality indicators, is also revealed. This knowledge is expected to contribute to a more efficient and sustainable management of the viticultural ecosystem.
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do Soil management practices affect the activity density diversity and stability of Soil Arthropods in vineyards
Agriculture Ecosystems & Environment, 2020Co-Authors: Fatima Goncalves, Catia Nunes, Cristina Carlos, Alvaro Carmona Lopez, Irene Oliveira, Antonio L Crespi, Branca Teixeira, Rui PintoAbstract:Abstract Arthropods are important components of the Soil fauna in improving Soil quality and its structural properties. Arthropods are also very sensitive to Soil management practices. Thus, a study was carried out in a vineyard in the Douro Demarcated Region (Northeast Portugal), to investigate the effect of three Soil management practices (tillage, ground cover with spontaneous vegetation, and ground cover with sown vegetation) on the activity density, richness and diversity of Soil Arthropods, as well as on the stability of their communities. Soil-surface Arthropods were assessed in 2014 and 2015 using pitfall traps, while Soil-living Arthropods were assessed in 2016 by collecting Soil samples and extracting them through a Berlese-Tullgren funnel. The possibility of using the Soil Biological Quality index (QBS-ar index) as a tool to discriminate Soils of vines subject to those management practices was also investigated. Results show that ground cover treatments significantly enhanced the activity density of Soil-surface herbivores and of their potential natural enemies in both years and the activity density of detritivores in 2014. The richness of total Soil-surface Arthropods and potential predators was also increased by ground cover treatments in 2015. In both years, Simpson’s diversity index of herbivores was enhanced by ground cover treatments, and in 2015, Simpson’s diversity index of the total Soil-surface Arthropods, potential predators, and omnivores was significantly higher in spontaneous vegetation than in tillage or sown vegetation treatments. The Soil-surface Arthropods community stability was positively affected by both their activity density and richness in 2015, with that stability being better achieved in the sown vegetation treatment. In Soil-living Arthropods, activity density, richness and Simpson’s diversity index were significantly higher in ground cover treatments than in the tillage treatment. The QBS-ar index was significantly higher in ground cover treatments than in the tillage, suggesting that this index can be a useful tool to discriminate Soil management practices in vineyards. In conclusion, our results indicate that the ground cover with vegetation improves the activity density and diversity of Soil Arthropods in vineyards.
Fatima Goncalves - One of the best experts on this subject based on the ideXlab platform.
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Soil Arthropods in the douro demarcated region vineyards general characteristics and ecosystem services provided
Sustainability, 2021Co-Authors: Fatima Goncalves, José Alberto Pereira, Cristina Carlos, Luis C Crespo, Vera Zina, Amalia Oliveira, Juliana Salvacao, L TorresAbstract:Viticulture is one of the oldest and most profitable forms of agriculture; it is also one of the most intensive farming systems. As intensive cultivation threatens the environment, there is increasing interest in the concept of sustainability within the wine industry, as well as new business opportunities, as customers begin to pay more attention to environmental and sustainability issues. Recognizing the key role of Soil quality in environmentally and economically sustainable viticulture makes it essential to understand better Soil arthropod communities, given their crucial functions in maintaining Soil quality and health. The ‘Douro Demarcated Region’ (DDR) in northern Portugal offers good potential, in regards to biodiversity, due to its significant areas of non-crop habitats. This work aims to compile information on Soil arthropod communities (both Soil surface and Soil-living) collected in the DDR vineyard agroecosystems. A description of the ecosystem services provided by them, as a basis for the development and implementation of sustainable viticulture systems, is also an objective of this work. An important set of Soil Arthropods necessary for the delivery of vital ecosystem services for viticulture, with particular reference to supporting and regulating services, occurred in this ecosystem. Eight classes were chiefly represented in a sample of about 167,000 arthropod specimens: Arachnida, Chilopoda, Diplopoda, Entognatha, Insecta, Malacostraca, Pauropoda, and Symphyla. The most representative were Entognatha and Insecta in Soil-surface Arthropods, and Arachnida and Entognatha in Soil-living Arthropods. The presence of recognized groups as bioindicators in agroecosystems, such as Soil quality indicators, is also revealed. This knowledge is expected to contribute to a more efficient and sustainable management of the viticultural ecosystem.
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do Soil management practices affect the activity density diversity and stability of Soil Arthropods in vineyards
Agriculture Ecosystems & Environment, 2020Co-Authors: Fatima Goncalves, Catia Nunes, Cristina Carlos, Alvaro Carmona Lopez, Irene Oliveira, Antonio L Crespi, Branca Teixeira, Rui PintoAbstract:Abstract Arthropods are important components of the Soil fauna in improving Soil quality and its structural properties. Arthropods are also very sensitive to Soil management practices. Thus, a study was carried out in a vineyard in the Douro Demarcated Region (Northeast Portugal), to investigate the effect of three Soil management practices (tillage, ground cover with spontaneous vegetation, and ground cover with sown vegetation) on the activity density, richness and diversity of Soil Arthropods, as well as on the stability of their communities. Soil-surface Arthropods were assessed in 2014 and 2015 using pitfall traps, while Soil-living Arthropods were assessed in 2016 by collecting Soil samples and extracting them through a Berlese-Tullgren funnel. The possibility of using the Soil Biological Quality index (QBS-ar index) as a tool to discriminate Soils of vines subject to those management practices was also investigated. Results show that ground cover treatments significantly enhanced the activity density of Soil-surface herbivores and of their potential natural enemies in both years and the activity density of detritivores in 2014. The richness of total Soil-surface Arthropods and potential predators was also increased by ground cover treatments in 2015. In both years, Simpson’s diversity index of herbivores was enhanced by ground cover treatments, and in 2015, Simpson’s diversity index of the total Soil-surface Arthropods, potential predators, and omnivores was significantly higher in spontaneous vegetation than in tillage or sown vegetation treatments. The Soil-surface Arthropods community stability was positively affected by both their activity density and richness in 2015, with that stability being better achieved in the sown vegetation treatment. In Soil-living Arthropods, activity density, richness and Simpson’s diversity index were significantly higher in ground cover treatments than in the tillage treatment. The QBS-ar index was significantly higher in ground cover treatments than in the tillage, suggesting that this index can be a useful tool to discriminate Soil management practices in vineyards. In conclusion, our results indicate that the ground cover with vegetation improves the activity density and diversity of Soil Arthropods in vineyards.