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Legacy effects of nematodes: Experimental evidence on live individuals and their residues in shaping plant nutrient acquisition
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-04-17 DOI: 10.1016/j.pedobi.2025.151052
Qian Chi , Yangxin Shi , Peng Wang , Mengmeng Wang , Yuanhu Shao , Shenglei Fu
{"title":"Legacy effects of nematodes: Experimental evidence on live individuals and their residues in shaping plant nutrient acquisition","authors":"Qian Chi ,&nbsp;Yangxin Shi ,&nbsp;Peng Wang ,&nbsp;Mengmeng Wang ,&nbsp;Yuanhu Shao ,&nbsp;Shenglei Fu","doi":"10.1016/j.pedobi.2025.151052","DOIUrl":"10.1016/j.pedobi.2025.151052","url":null,"abstract":"<div><div>Soil nematodes are crucial constituents of terrestrial ecosystems and strongly influence the growth of both plants and soil microbes. Using a controlled factorial experiment, we investigated the distinct effects of live nematodes and dead nematode residues on soil microbial biomass and plant nutrient dynamics. Our results demonstrated that both live nematodes and nematode residues reduce microbial biomass carbon and cause a transient decrease in microbial biomass nitrogen, while increasing plant leaf nitrogen content. These findings underscore the important influence of nematodes, irrespective of their life state, on plant and soil microbial nutrient acquisition. They also highlight the pivotal yet underappreciated role of nematode residues in shaping soil ecosystem processes, suggesting that nematode contributions extend beyond their lifespan.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"110 ","pages":"Article 151052"},"PeriodicalIF":2.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil matrix affects the determination of p-nitrophenol and the estimation of β-glucosidase, arylsulfatase, and acid phosphatase activities in subtropical soils
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-04-11 DOI: 10.1016/j.pedobi.2025.151050
Alexandre Bertoldo da Silva, Glaciela Kaschuk
{"title":"Soil matrix affects the determination of p-nitrophenol and the estimation of β-glucosidase, arylsulfatase, and acid phosphatase activities in subtropical soils","authors":"Alexandre Bertoldo da Silva,&nbsp;Glaciela Kaschuk","doi":"10.1016/j.pedobi.2025.151050","DOIUrl":"10.1016/j.pedobi.2025.151050","url":null,"abstract":"<div><div>Increased soil enzyme activity is an indicator of excellent soil health. The activities of soil β-glucosidase, arylsulfatase, and acid phosphatase are determined by quantifying <em>p</em>-nitrophenol, the product of degradation of <em>p</em>-nitrophenyl substrates during soil incubation. However, some <em>p</em>-nitrophenol may adsorb to the soil matrix, leading to underestimations of soil enzyme activities. This study aimed to verify the effects of soil matrices on <em>p</em>-nitrophenol determination and to evaluate their consequences on enzyme activity estimations. Soil samples were collected from 18 locations in the Plateau and Coastal regions of Paraná, Southern Brazil, covering various land uses and subjected to physical and chemical characterization. Three 500 mg soil aliquots from each composite sample per site were incubated following standard procedures. Three calibration curves were then applied: 1) Multiple Point External Standard, with six <em>p</em>-nitrophenol concentrations; 2) Multiple Point Standard Addition, with the same six <em>p</em>-nitrophenol concentrations plus soil; and 3) Single-Point Standard Addition, with a median <em>p</em>-nitrophenol concentration plus soil. Significant differences in the slope coefficients of the linear regressions between the Multiple Point External Standard curve and the Multiple Point Standard Addition curve were attributed to soil matrix effects, resulting in lower enzyme activity estimates. Principal Component Analysis indicated that the soil matrix effect was associated with fine-textured soils high in organic matter. Enzyme activities estimated using the Multiple Point Standard Addition curve did not differ from those obtained with the Single-Point Standard Addition curve, suggesting that both methods are suitable for correcting soil matrix effects. Despite this, results from the first two calibration curves were highly correlated (β-glucosidase, r = 0.8357; acid phosphatase, r = 0.9779; and arylsulfatase, r = 0.9962), suggesting that the soil matrix effect does not significantly impact the interpretation of soil enzyme activity values in soil health assessments.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"110 ","pages":"Article 151050"},"PeriodicalIF":2.0,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Short-term effects of microplastics and earthworms on greenhouse gases emissions from a sandy-loam soil
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-04-01 DOI: 10.1016/j.pedobi.2025.151036
Wenjing Ma , Daiyu Qiao , Huijie Lu , Carmelo Maucieri , Cancan Zhao , Lei Su , Yaojun Zhang
{"title":"Short-term effects of microplastics and earthworms on greenhouse gases emissions from a sandy-loam soil","authors":"Wenjing Ma ,&nbsp;Daiyu Qiao ,&nbsp;Huijie Lu ,&nbsp;Carmelo Maucieri ,&nbsp;Cancan Zhao ,&nbsp;Lei Su ,&nbsp;Yaojun Zhang","doi":"10.1016/j.pedobi.2025.151036","DOIUrl":"10.1016/j.pedobi.2025.151036","url":null,"abstract":"<div><div>The widespread use of plastics in agriculture has led to the co-existence of microplastics (MPs) and earthworms in soil ecosystems. While both MPs and earthworms are known to influence soil greenhouse gas (GHG) emissions, their interactive effects on CO<sub>2</sub>, N<sub>2</sub>O, and CH<sub>4</sub> emissions remain poorly understood. To address this gap, a 21-day incubation experiment was conducted to examine the impact of MPs (0 %, 0.1 %, 0.5 %, 1 %) on soil GHG emissions in the presence and absence of earthworms. The results showed that MPs significantly reduced cumulative N<sub>2</sub>O emission and enhanced CH<sub>4</sub> oxidation, with effects intensifying at higher concentrations, but had no significant effect on CO<sub>2</sub> emissions. In contrast, earthworms increased soil CO<sub>2</sub> and N<sub>2</sub>O emissions while promoting CH<sub>4</sub> oxidation. MPs also lowered the global warming potential (GWP) by reducing N<sub>2</sub>O emissions, whereas earthworms had an opposite effect. Interestingly, MPs reduced earthworm mortality in this study. Additionally, the interaction between MPs and earthworms significantly influenced soil pH and mineral N (NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>-</sup>-N) content. These findings the critical role of earthworms in amplifying soil CO<sub>2</sub> and N<sub>2</sub>O emissions and CH<sub>4</sub> oxidation. This study provides new insights into GHG emissions in sandy-loam soils under the combined influence of MPs and earthworms.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151036"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil:Micro – A free data-based virtual reality experience of soil at a microbial scale
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-03-28 DOI: 10.1016/j.pedobi.2025.151039
Thea Whitman , Ross Tredinnick
{"title":"Soil:Micro – A free data-based virtual reality experience of soil at a microbial scale","authors":"Thea Whitman ,&nbsp;Ross Tredinnick","doi":"10.1016/j.pedobi.2025.151039","DOIUrl":"10.1016/j.pedobi.2025.151039","url":null,"abstract":"<div><div>Soil ecologists face a particular challenge in visualizing the environment that soil organisms inhabit, as it is both opaque and microscopic. We have developed a virtual reality (VR) experience of a soil at a microbial scale, based on a micro-computed tomography scan of a real soil. The VR app Soil:Micro is designed for a head-mounted display and could be used in educational and public outreach settings. Users travel through a series of stations where they can explore the soil environment as they learn about soil as a habitat for soil microbes. We hope that this tool inspires interest in and knowledge about soils, helping both to combat “soil blindness” in the general public and also to inspire soil ecologists to see these complex ecosystems in new ways.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"110 ","pages":"Article 151039"},"PeriodicalIF":2.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
“Best food” does not apply to all: Quality of nematode diet for development and fitness of their predator Parasitus sp. (Mesostigmata: Parasitidae)
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-03-23 DOI: 10.1016/j.pedobi.2025.151038
Diana Rueda-Ramírez , Alyssa Grogorenz-de Oliveira , Eric Palevsky , Liliane Ruess
{"title":"“Best food” does not apply to all: Quality of nematode diet for development and fitness of their predator Parasitus sp. (Mesostigmata: Parasitidae)","authors":"Diana Rueda-Ramírez ,&nbsp;Alyssa Grogorenz-de Oliveira ,&nbsp;Eric Palevsky ,&nbsp;Liliane Ruess","doi":"10.1016/j.pedobi.2025.151038","DOIUrl":"10.1016/j.pedobi.2025.151038","url":null,"abstract":"<div><div>Long-chain polyunsaturated fatty acids (PUFAs), especially ω3 forms, are essential nutrients for many animals and are typically obtained from dietary sources, yet there is limited availability in terrestrial ecosystem. In soil food webs, free-living nematodes are an important source of these PUFAs. Predatory mites (Mesostigmata) play a key role in regulating invertebrate populations, including free-living and plant-parasitic nematodes. Recent studies suggest that diets including nematodes improve the fitness of predatory mites and enhance their function as biological control agents within soil food webs. The predatory mite <em>Parasitus</em> sp. isolated from Mediterranean agricultural fields showed nematode consumption and colony establishment with a mixture of nematode species. This study investigated the effects of single nematode diets on the fitness of <em>Parasitus</em> sp., focusing on the roles of ω3- and ω6-PUFAs. This included one plant-parasitic and five free-living bacterial-feeding species, mostly co-occurring in the same Mediterranean fields, with one species unable to synthesize ω3-PUFAs. The results showed that nematodes rich in ω3-PUFAs supported <em>Parasitus</em> sp. development, but those high in ω6-PUFAs and deficient in ω3-PUFAs did not. However, mite survival and moulting to adulthood were generally low, possibly indicating a need for a specific stimulus or a more varied diet. This study further demonstrated ω3-PUFA <em>de novo</em> synthesis in Mesostigmata. Overall, the nematode diets influenced the development of <em>Parasitus</em> sp. differently, which emphasizes the importance of diverse nematode populations to support the fitness of higher trophic levels such as predatory mites.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151038"},"PeriodicalIF":2.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microhabitat and seasonal dynamics of soil fauna communities in upper Andean successional forests
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-03-22 DOI: 10.1016/j.pedobi.2025.151037
Dennis Castillo-Figueroa , Camilo Castillo-Avila
{"title":"Microhabitat and seasonal dynamics of soil fauna communities in upper Andean successional forests","authors":"Dennis Castillo-Figueroa ,&nbsp;Camilo Castillo-Avila","doi":"10.1016/j.pedobi.2025.151037","DOIUrl":"10.1016/j.pedobi.2025.151037","url":null,"abstract":"<div><div>Soil fauna play a crucial role in supporting soil functions and their communities change along forest successional gradients. However, our understanding of their temporal dynamics is limited, particularly in tropical mountain ecosystems with pronounced seasonal precipitation patterns. Additionally, the impact of forest successional stage on the regulation of seasonal changes in soil fauna communities remains poorly understood. In this study, we examined the changes of soil fauna communities across climatic seasons and microhabitats in mature and secondary forests of upper Andean tropical forests (UATF). We collected 168 soil samples (30x30x5 cm) across four climatic seasons (two wet and two dry) from 14 permanent plots in four UATF sites during La Niña event. Microclimatic data (air, surface, and soil temperatures, and soil moisture) were recorded every 15 minutes for a year using TOMST dataloggers. Our findings reveal that soil fauna richness and abundance significantly increase during wet seasons, although species composition remained unchanged. This increase is mainly due to higher soil moisture levels, which control soil fauna attributes. We also observed an interaction between climatic season and microhabitat: during wet seasons, when soils are water-saturated, more species migrate to the litter layer, whereas during dry seasons, when water availability is reduced, species tend to aggregate in the soil. However, no interactions were detected between these factors and successional stages. Soil moisture directly influenced soil fauna richness and abundance in both mature and secondary forests. Overall, our study highlights that soil fauna in UATF exhibit clear climatic seasonality, shaping microhabitat variability independent of forest successional stage.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151037"},"PeriodicalIF":2.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of multispecies management on the soil protist community in Pinus massoniana plantations in subtropical China
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-03-06 DOI: 10.1016/j.pedobi.2025.151035
Jiawen Jiang, Luhong Zhou, Debao Lin, Yaning Gu, Linfang Wu, Ji-Zheng He
{"title":"Effects of multispecies management on the soil protist community in Pinus massoniana plantations in subtropical China","authors":"Jiawen Jiang,&nbsp;Luhong Zhou,&nbsp;Debao Lin,&nbsp;Yaning Gu,&nbsp;Linfang Wu,&nbsp;Ji-Zheng He","doi":"10.1016/j.pedobi.2025.151035","DOIUrl":"10.1016/j.pedobi.2025.151035","url":null,"abstract":"<div><div>The decline in ecosystem services provided by monocultures has raised significant concerns, leading to the emergence of multispecies plantations as a promising management approach to forest management. Protists are the primary consumers of bacteria and fungi, and they respond sensitively to changes in vegetation composition and human disturbance. However, the ecological consequences of multispecies plantations on the protist communities remain poorly understood. This study aimed to compare protist community composition between <em>Pinus massoniana</em> monocultures and multispecies plantation forests by examining their differences in both topsoil (0-10 cm) and subsoil (30-50 cm). We compared the diversity, molecular ecological networks, and assembly processes of protist communities in the typical mature <em>Pinus massoniana</em> monocultures and overmature <em>P. massoniana</em> monocultures with those of <em>P. massoniana</em>-broad-leaved mixed plantations, broadleaf mixture plantations, and secondary forests in subtropical China. We further assessed the important drivers for shaping the protist communities. We found that (1) both forest type and soil depth significantly influenced the alpha diversity of protist communities; (2) mixing broadleaf trees with <em>P. massoniana</em> stands could enhance the network complexity and stability of protist communities, and could change the composition of protist communities to a level similar to that of natural forest to an extent; and (3) protist community composition was predominantly influenced by nutrient availability in the topsoil, whereas it was primarily shaped by pH and soil texture in the subsoil. These findings provided scientific guidance for mixed forest plantation in subtropical afforestation and improving <em>P. massoniana</em> monocultures.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151035"},"PeriodicalIF":2.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial assemblies in acidic dryland vs. paddy soils across depth profiles in southern China's red soil region
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-02-27 DOI: 10.1016/j.pedobi.2025.151034
Xin Li , Yun Ge , Fangjing Hu , Yongxiu Qi , Lingzhi Li , Xu Chen , Xi-En Long
{"title":"Bacterial assemblies in acidic dryland vs. paddy soils across depth profiles in southern China's red soil region","authors":"Xin Li ,&nbsp;Yun Ge ,&nbsp;Fangjing Hu ,&nbsp;Yongxiu Qi ,&nbsp;Lingzhi Li ,&nbsp;Xu Chen ,&nbsp;Xi-En Long","doi":"10.1016/j.pedobi.2025.151034","DOIUrl":"10.1016/j.pedobi.2025.151034","url":null,"abstract":"<div><div>Red soils in China are essential for food security, ecological balance, and rural development. Red soil's varied microbial populations help maintain soil health, cycle nutrients, and sustain ecosystems. The variation in bacterial community assembly and distribution with soil depth in acidic dryland and paddy soils is unknown. We sampled dryland and paddy soil profiles from nearby farms in southern China's red soil region. Five soil layers (0–20 cm, 20–40 cm, 40–60 cm, 60–80 cm, 80–100 cm) were taken from a 1-meter soil profile at Yichun, Jiangxi, China. In paddy soils, ammonium nitrogen, available iron, and soil organic matter (SOM) were greater than in dryland soils. While both soil types showed considerable variation in diversity indices (Chao1, Sobs, PD) over the soil profile, paddy soils showed a more wave-like pattern in microbial diversity indicators. Dryland soils had higher relative abundances of <em>Actinobacteriota</em> (3.6–7.3 %) and GAL15 (1.3–8.6 %), while paddy soils had <em>Bacteroidota</em> (3.9–9.2 %), <em>Desulfobacterota</em> (4.2–7.7 %), and <em>Nitrospirota</em> (2.1–12.7 %). <em>Acidobacteriota</em> (29.5–59.1 %), Chloroflexi (6.3–30.9 %), and <em>Proteobacteria</em> (7.5–21.5 %) predominated at both soil types. Taxonomic alterations in <em>Acidobacteriota</em>, <em>Chloroflexi</em>, and <em>Proteobacteria</em> highlighted how microbial communities adapted to dryland vs paddy soils. The assembly of bacterial communities was mostly stochastic, with varied dispersion and assembly dynamics across soil types and depths. Network analysis showed that paddy soils had more complicated interspecies relationships than dryland soils, with a greater average clustering coefficient and lower modularity. Drylands had higher biosynthetic and metabolic activity, especially amino acid metabolism and secondary metabolite production, whereas paddy soils had higher energy metabolism. This research emphasizes how land use affects soil physicochemical properties and microbiological populations. Microbial profiles and functional adaptations of dryland and paddy soils provide soil management techniques to optimize soil health and production in diverse agricultural systems.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151034"},"PeriodicalIF":2.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Millipede (Spirobolus walker) prefers feeding on a high-quality litter from a companion species when combined with Masson pine litter
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-02-26 DOI: 10.1016/j.pedobi.2025.151033
Cong Li , Lige Liu , Zhangming Wu , Wengong Wang , Shenghan Wang , Xinhua He , Xinglei Cui , Jiujin Xiao , Yang Liu
{"title":"Millipede (Spirobolus walker) prefers feeding on a high-quality litter from a companion species when combined with Masson pine litter","authors":"Cong Li ,&nbsp;Lige Liu ,&nbsp;Zhangming Wu ,&nbsp;Wengong Wang ,&nbsp;Shenghan Wang ,&nbsp;Xinhua He ,&nbsp;Xinglei Cui ,&nbsp;Jiujin Xiao ,&nbsp;Yang Liu","doi":"10.1016/j.pedobi.2025.151033","DOIUrl":"10.1016/j.pedobi.2025.151033","url":null,"abstract":"<div><div>Monoculture plantations, particularly the coniferous species (<em>Pinus massoniana</em>), often impede nutrient cycling, leading to declines in biodiversity and soil fertility. Selection of suitable companion tree species, especially a native broadleaf species is thus essential for improving forest ecosystem functions. Millipedes (<em>Spirobolus walker</em>), a widely distributed large arthropod to primarily consume litter, play a pivotal role in organic matter decomposition and nutrient cycling in terrestrial ecosystems. Addressing the feeding preferences of millipedes in relation to litter quality could provide insights into selection of appropriate mixed tree species, thereby facilitating the sustainable management of Masson pine plantations. Millipede feeding experiments on leaf litter from three typical subtropical broadleaf species – <em>Camptotheca acuminata</em> (high-quality litter), <em>Quercus variabilis</em> (intermediate-quality), and <em>Michelia wilsonii</em> (low-quality), were conducted in combination with Masson litter. We found that millipedes responded more to litter morphology rather than chemical characteristics. Acid insoluble components, consisting mainly of condensed tannins and lignin in litter had almost no effects on millipede feeding preferences. Despite <em>C. acumina</em>ta containing high levels of tannins and phenols, millipedes exhibited the highest consumption rate (44 mg·g<sup>−1</sup>·d<sup>−1</sup>) on it, due to its higher tubularity and nitrogen concentration. Additionally, when multiple litter sources were available, millipedes showed greater preference for consuming high-quality litter, an indication of the better suitability of <em>C. acuminata</em> for mixture with Masson pine. A transformation of mono-species into a multiple-species based plantation forest would therefore enhance circulation of materials, particularly carbon and nitrogen, through millipedes’ preferential feeding activity.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151033"},"PeriodicalIF":2.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of forest edges on soil nematode community structures between broadleaf secondary forest and coniferous plantation
IF 2 3区 农林科学
Pedobiologia Pub Date : 2025-02-26 DOI: 10.1016/j.pedobi.2025.151032
Yudai Kitagami , Yota Imao , Yosuke Matsuda
{"title":"The effect of forest edges on soil nematode community structures between broadleaf secondary forest and coniferous plantation","authors":"Yudai Kitagami ,&nbsp;Yota Imao ,&nbsp;Yosuke Matsuda","doi":"10.1016/j.pedobi.2025.151032","DOIUrl":"10.1016/j.pedobi.2025.151032","url":null,"abstract":"<div><div>Habitat edges between two forest types significantly affect the community structure and dynamics of soil organisms Nematodes are a major group of soil microfauna and the most abundant animals on Earth. This study aimed to determine the edge effects of two forest types on soil nematode community composition. We hypothesized that nematode diversity and abundance would be greater in forest edges due to increased heterogeneity of aboveground litter and belowground root traits at the boundary between two forest types, as well as microclimatic variation, enhanced resource inputs, higher plant diversity, and unique soil moisture dynamics characteristic of edge environments. The soil was collected from two adjacent forests, a broadleaf <em>Quercus serrata</em> forest and a coniferous <em>Cryptomeria japonica</em> plantation, with the zone where the two forests transition into one another being referred to as the \"forest edge”. Soil nematodes were morphologically identified at the genus/family level and examined for both community structure and trophic composition. Our results showed that there was a significant positive correlation between the relative abundance of herbivorous nematodes and the physical distance from the broadleaf forest to the <em>C. japonica</em> plantation. The diameter of coniferous <em>C. japonica</em> fine roots were greater than those of broadleaf <em>Q. serrata</em>, suggesting that herbivorous nematodes had easily access to edible resources leading to an increase their populations. Moreover, the nematode community structures had a spatial autocorrelation within a 32 m range, their community structures changed significantly from broadleaf forests to <em>C. japonica</em> plantations and that soil pH and C/N significantly influenced the structuring of nematode communities. This study showed that nematode taxonomic and trophic compositions can be influenced by tree root traits within a range of several tens of meters around forest edges facing different forest types. Our results highlighted that forest edges enhance soil nematode taxonomic turnover.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151032"},"PeriodicalIF":2.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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