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Ren Y, Gao G, Ding G, Zhang Y, Zhao P. Patterns and environmental drivers of C, N, and P stoichiometry in the leaf-litter-soil system associated with Mongolian pine forests. Ecol Evol 2024; 14:e11172. [PMID: 38516573 PMCID: PMC10954427 DOI: 10.1002/ece3.11172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 03/23/2024] Open
Abstract
Ecological stoichiometry is an important approach to understand plant nutrient cycling and balance in the forest ecosystem. However, understanding of stoichiometric patterns through the leaf-litter-soil system of Mongolian pine among different stand origins is still scarce. Therefore, to reveal the variations in Mongolian pine carbon (C), nitrogen (N), and phosphorus (P) stoichiometry and stoichiometric homeostasis among different stand origins, we measured C, N, and P concentrations of leaves, litter, and soil, and analyzed the nutrient resorption efficiencies of leaves in differently aged plantations and natural forests from semi-arid and dry sub-humid regions. The results showed that (1) the stand origin had a significant effect on the C-N-P stoichiometry, and also significantly affected leaf N and P reabsorption efficiencies. Leaf N/P ratios indicated that Mongolian pine was co-limited by N and P in the NF, HB and HQ, and was mainly limited by P in MU. (2) With increasing stand age, C concentrations in the leaf-litter-soil system initially increased and then decreased, the N and P concentrations and reabsorption efficiencies in the leaf-litter-soil system were gradually increased. Overall, stand age had a significant effect on N concentrations, C/N and C/P ratios in the leaf-litter-soil system. (3) The C and N elements between the leaf-litter-soil system had a strong coupling relationship, and the P element between litter-soil had a strong coupling relationship. In addition, plantations exhibited greater N/P homeostasis than natural forests, and N/P exhibited greater homeostasis than N and P alone, which may be a nutrient utilization strategy for forests to alleviate N or P limitation. (4) Environmental factors have a significant influence on C-N-P stoichiometry in the leaf-litter-soil system, the most important soil properties and meteorological factors being soil water content and precipitation, respectively. These results will be essential to provide guidance for plantation restoration and management in desert regions.
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Affiliation(s)
- Yue Ren
- Yanchi Research Station, School of Soil and Water ConservationBeijing Forestry UniversityBeijingChina
| | - Guang‐lei Gao
- Yanchi Research Station, School of Soil and Water ConservationBeijing Forestry UniversityBeijingChina
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Forestry UniversityBeijingChina
- Engineering Research Center of Forestry Ecological Engineering, Ministry of EducationBeijing Forestry UniversityBeijingChina
- Key Laboratory of State Forestry and Grassland Administration on Soil and Water ConservationBeijing Forestry UniversityBeijingChina
| | - Guo‐dong Ding
- Yanchi Research Station, School of Soil and Water ConservationBeijing Forestry UniversityBeijingChina
- Engineering Research Center of Forestry Ecological Engineering, Ministry of EducationBeijing Forestry UniversityBeijingChina
- Key Laboratory of State Forestry and Grassland Administration on Soil and Water ConservationBeijing Forestry UniversityBeijingChina
| | - Ying Zhang
- Yanchi Research Station, School of Soil and Water ConservationBeijing Forestry UniversityBeijingChina
- Engineering Research Center of Forestry Ecological Engineering, Ministry of EducationBeijing Forestry UniversityBeijingChina
- Key Laboratory of State Forestry and Grassland Administration on Soil and Water ConservationBeijing Forestry UniversityBeijingChina
| | - Pei‐shan Zhao
- Yanchi Research Station, School of Soil and Water ConservationBeijing Forestry UniversityBeijingChina
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Pequeno PACL, Franklin E, Norton RA. Hunger for sex: Abundant, heterogeneous resources select for sexual reproduction in the field. J Evol Biol 2022; 35:1387-1395. [PMID: 36117406 DOI: 10.1111/jeb.14091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 08/05/2022] [Accepted: 08/21/2022] [Indexed: 11/29/2022]
Abstract
Major hypotheses on sex evolution predict that resource abundance and heterogeneity should either select for or against sexual reproduction. However, seldom have these predictions been explicitly tested in the field. Here, we investigated this question using soil oribatid mites, a diverse and abundant group of soil arthropods whose local communities can be dominated by either sexual or asexual species. First, we refined theoretical predictions by addressing how the effects of resource abundance, heterogeneity and abiotic conditions could modify each other. Then, we estimated the strength of selection for sexual species in local communities while controlling for phylogeny and neutral processes (ecological drift and dispersal), and tested its relation to resource and abiotic gradients. We show that sexual species tended to be favoured with increasing litter amount, a measure of basal resource abundance. Further, there was some evidence that this response occurred mainly under higher tree species richness, a measure of basal resource heterogeneity. This response to resources is unlikely to reflect niche partitioning between reproductive modes, as sexual and asexual species overlapped in trophic niche according to a comparative analysis using literature data on stable isotope ratios. Rather, these findings are consistent with the hypothesis that sex facilitates adaptation by breaking unfavourable genetic associations, an advantage that should increase with effective population size when many loci are under selection and, thus, with resource abundance.
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Affiliation(s)
| | - Elizabeth Franklin
- Biodiversity Coordination, National Institute for Amazonia Research, Manaus, Brazil
| | - Roy A Norton
- College of Environmental Science and Forestry, State University of New York, Syracuse, New York, USA
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Li X, Chu Y, Jia Y, Yue H, Han Z, Wang Y. Changes to bacterial communities and soil metabolites in an apple orchard as a legacy effect of different intercropping plants and soil management practices. Front Microbiol 2022; 13:956840. [PMID: 36003931 PMCID: PMC9393497 DOI: 10.3389/fmicb.2022.956840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022] Open
Abstract
Intercropping is an important soil management practice for increasing orchard productivity and land-use efficiency because it has beneficial effects on soil microbial communities and soil properties. However, there is relatively little information available regarding the effects of different crops/grasses on soil microbial communities and soil metabolic products in apple orchards in arid and semi-arid regions. In this study, we showed the microbial communities of apple, intercropping plants, and sandy waste soil, using the third-generation PacBio SMRT long-read sequencing technology. Our results also revealed that the microbial communities and soil metabolic properties differed significantly between apple and the sandy waste soil and the intercropping plants. Intercropping could significantly enrich diverse microbial species, microbial nitrogen, and microbial carbon of soil. Moreover, intercropping with licorice showed better effects in recruiting beneficial microbes, compared to grass and pepper, significantly enriching species belonging to some well-known taxa with beneficial effects, including Bacillus, Ensifer, Paenibacillus, Rhizobium, and Sphingomonas. Thus, intercropping with licorice may improve apple tree growth and disease resistance. Furthermore, Bradyrhizobium and Rubrobacter were included among the keystone taxa of apple, whereas Bacillus, Chitinophaga, Stenotrophobacter, Rubrobacter, and Luteimonas were the keystone taxa of the intercropping plants. The results of our study suggest that intercropping with licorice is a viable option for increasing apple orchard productivity.
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Affiliation(s)
- Xiaolong Li
- College of Horticulture, China Agricultural University, Beijing, China
- Institute of Horticulture, Ningxia Academy of Agricultural and forestry Sciences, Yinchuan, China
| | - Yannan Chu
- Institute of Horticulture, Ningxia Academy of Agricultural and forestry Sciences, Yinchuan, China
| | - Yonghua Jia
- Institute of Horticulture, Ningxia Academy of Agricultural and forestry Sciences, Yinchuan, China
| | - Haiying Yue
- Institute of Horticulture, Ningxia Academy of Agricultural and forestry Sciences, Yinchuan, China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing, China
- Zhenhai Han
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, China
- *Correspondence: Yi Wang
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Are fire, soil fertility and toxicity, water availability, plant functional diversity, and litter decomposition related in a Neotropical savanna? Oecologia 2014; 175:923-35. [DOI: 10.1007/s00442-014-2937-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 03/26/2014] [Indexed: 11/26/2022]
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Heidemann K, Ruess L, Scheu S, Maraun M. Nematode consumption by mite communities varies in different forest microhabitats as indicated by molecular gut content analysis. EXPERIMENTAL & APPLIED ACAROLOGY 2014; 64:49-60. [PMID: 24705854 DOI: 10.1007/s10493-014-9807-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
Soil animals live in complex and heterogeneous habitats including litter of various types but also microhabitats such as mosses, fungal mats and grass patches. Soil food webs have been separated into a slow fungal and a fast bacterial energy channel. Bacterial-feeding nematodes are an important component of the bacterial energy channel by consuming bacteria and forming prey for higher trophic levels such as soil microarthropods. Investigating the role of nematodes as prey for higher trophic level consumers has been hampered by methodological problems related to their small body size and lack in skeletal structures which can be traced in the gut of consumers. Recent studies using molecular gut content analyses suggest that nematodes form major prey of soil microarthropods including those previously assumed to live as detritivores. Using molecular markers we traced nematode prey in fourteen abundant soil microarthropod taxa of Mesostigmata and Oribatida (both Acari) from three different microhabitats (litter, grass and moss). Consumption of nematodes varied between mite species indicating that trophic niche variation contributes to the high diversity of microarthropods in deciduous forests. Further, consumption of nematodes by Mesostigmata (but not Oribatida) differed between microhabitats indicating that trophic niches vary with habitat characteristics. Overall, the results suggest that free-living bacterial-feeding nematodes form important prey for soil microarthropods including those previously assumed to live as detritivores.
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Affiliation(s)
- Kerstin Heidemann
- J.F. Blumenbach Institute of Zoology and Anthropology, Georg August University Göttingen, Berliner Str. 28, 37073, Göttingen, Germany,
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Host location success of root-feeding nematodes in patches that differ in size and quality: A belowground release-recapture experiment. Basic Appl Ecol 2012. [DOI: 10.1016/j.baae.2012.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Eisenhauer N, Milcu A, Sabais ACW, Bessler H, Brenner J, Engels C, Klarner B, Maraun M, Partsch S, Roscher C, Schonert F, Temperton VM, Thomisch K, Weigelt A, Weisser WW, Scheu S. Plant diversity surpasses plant functional groups and plant productivity as driver of soil biota in the long term. PLoS One 2011; 6:e16055. [PMID: 21249208 PMCID: PMC3017561 DOI: 10.1371/journal.pone.0016055] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 12/06/2010] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND One of the most significant consequences of contemporary global change is the rapid decline of biodiversity in many ecosystems. Knowledge of the consequences of biodiversity loss in terrestrial ecosystems is largely restricted to single ecosystem functions. Impacts of key plant functional groups on soil biota are considered to be more important than those of plant diversity; however, current knowledge mainly relies on short-term experiments. METHODOLOGY/PRINCIPAL FINDINGS We studied changes in the impacts of plant diversity and presence of key functional groups on soil biota by investigating the performance of soil microorganisms and soil fauna two, four and six years after the establishment of model grasslands. The results indicate that temporal changes of plant community effects depend on the trophic affiliation of soil animals: plant diversity effects on decomposers only occurred after six years, changed little in herbivores, but occurred in predators after two years. The results suggest that plant diversity, in terms of species and functional group richness, is the most important plant community property affecting soil biota, exceeding the relevance of plant above- and belowground productivity and the presence of key plant functional groups, i.e. grasses and legumes, with the relevance of the latter decreasing in time. CONCLUSIONS/SIGNIFICANCE Plant diversity effects on biota are not only due to the presence of key plant functional groups or plant productivity highlighting the importance of diverse and high-quality plant derived resources, and supporting the validity of the singular hypothesis for soil biota. Our results demonstrate that in the long term plant diversity essentially drives the performance of soil biota questioning the paradigm that belowground communities are not affected by plant diversity and reinforcing the importance of biodiversity for ecosystem functioning.
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Affiliation(s)
- Nico Eisenhauer
- Department of Forest Resources, University of Minnesota, St. Paul, Minnesota, United States of America.
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Reverchon F, María del Ortega-Larrocea P, Pérez-Moreno J. Saprophytic fungal communities change in diversity and species composition across a volcanic soil chronosequence at Sierra del Chichinautzin, Mexico. ANN MICROBIOL 2010. [DOI: 10.1007/s13213-010-0030-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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9
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Global Within-Site Variance in Soil Solution Nitrogen and Hydraulic Conductivity Are Correlated with Clay Content. Ecosystems 2009. [DOI: 10.1007/s10021-009-9293-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Effects of experimental fires on litter decomposition in a seasonally dry Amazonian forest. JOURNAL OF TROPICAL ECOLOGY 2009. [DOI: 10.1017/s0266467409990150] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract:Litter decomposition is a fundamental process for nutrient cycling but we have a limited understanding of this process in disturbed tropical forests. We studied litter decomposition over a 10-mo period in a seasonally dry Amazon forest in Mato Grosso, Brazil. The study plots (50 ha each) included unburned forest (UF), once-burned (BF1) and forest burned annually for 3 y (BF3). We measured understorey density, litter depth, canopy openness, temperature and relative humidity in the plots. Decomposition experiments took place using 720 litterbags filled with approximately 10 g of natural abscised oven-dried leaves. To test the effects of fire on soil meso- and macrofauna, the litterbags had either a fine (2 mm) or coarse (with 1-cm holes in side) mesh size. Litterbags were collected and reweighed 2, 4, 6 and 8 mo after being placed on the forest floor. All forest structure variables were significantly different across plots: BF3 was hotter, less humid, had the highest degree of canopy openness, lowest understorey density and the shallowest litter depth. Litter decomposition (mass loss) was similar in the once-burned and unburned plots, but declined more slowly in BF3. In addition, decomposition was slower in fine-mesh litterbags than coarse-mesh litterbags in BF3, but there was no difference between mesh sizes in BF1 and UF. It is likely that changes in forest structure and microclimate explain the lower decomposition rates in BF3. These results show the importance of recurrent fires, but suggest that single understorey fires may not have long-term negative effects on some ecological processes in seasonally dry Amazonian forests.
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Earthworms, Collembola and residue management change wheat (Triticum aestivum) and herbivore pest performance (Aphidina: Rhophalosiphum padi). Oecologia 2008; 157:603-17. [DOI: 10.1007/s00442-008-1106-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2008] [Accepted: 06/19/2008] [Indexed: 11/28/2022]
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Abstract
Associations between plants and animals in aboveground communities are often predictable and specific. This has been exploited for the purposes of estimating the diversity of animal species based on the diversity of plant species. The introduction of invasive alien plants into an ecosystem can result in dramatic changes in both the native plant and animal assemblages. Few data exist at the species level to determine whether belowground animal assemblages share the same degree of association to plants. The hypotheses that soil mites (Acari) form assemblages specifically associated with different native grass species in an unmanipulated natural ecosystem and that invasive alien grasses will impact soil mite assemblage composition in this setting were tested. Soil mites sampled beneath five native and two invasive alien species of grasses at the Konza Prairie Biological Station, Kansas, USA, were similarly abundant, species rich, diverse, and taxonomically distinct. No mite species had affinities for a specific grass species. There was no evidence from analysis of similarity, canonical correspondence analysis, or a nonparametric assemblage analysis that the assemblage composition of soil mites was specific to grass species. Results suggest that soil mite assemblages were more related to characteristics of the plant assemblage as a whole or prevailing soil conditions. The most recent invasive alien grass did not support a successionally younger mite fauna, based on the ratio of mesostigmatid to oribatid mites, and neither of the two invasive grasses influenced mite assemblage structure, possibly because they had not yet substantially altered the soil environment. Our results suggest that extrapolations of soil mite diversity based on assumptions of plant specificity would be invalid.
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Affiliation(s)
- Mark G St John
- Natural Resource Ecology Laboratory, Colorado State University, Fort Collins 80523-1499, USA.
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Gundale MJ, Metlen KL, Fiedler CE, DeLuca TH. Nitrogen spatial heterogeneity influences diversity following restoration in a ponderosa pine forest, Montana. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2006; 16:479-89. [PMID: 16711038 DOI: 10.1890/1051-0761(2006)016[0479:nshidf]2.0.co;2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The resource heterogeneity hypothesis (RHH) is frequently cited in the ecological literature as an important mechanism for maintaining species diversity. The RHH has rarely been evaluated in the context of restoration ecology in which a commonly cited goal is to restore diversity. In this study we focused on the spatial heterogeneity of total inorganic nitrogen (TIN) following restoration treatments in a ponderosa pine (Pinus ponderosa)/Douglas-fir (Pseudotsuga menziesii) forest in western Montana, USA. Our objective was to evaluate relationships between understory species richness and TIN heterogeneity following mechanical thinning (thin-only), prescribed burning (burn-only), and mechanical thinning with prescribed burning (thin/burn) to discern the ecological and management implications of these restoration approaches. We employed a randomized block design, with three 9-ha replicates of each treatment and an untreated control. Within each treatment, we randomly established a 20 x 50 m (1000 m2) plot in which we measured species richness across the entire plot and in 12 1-m(2) quadrats randomly placed within each larger plot. Additionally, we measured TIN from a grid consisting of 112 soil samples (0-5 cm) in each plot and computed standard deviations as a measure of heterogeneity. We found a correlation between the net increase in species richness and the TIN standard deviations one and two years following restoration treatments, supporting RHH. Using nonmetric multidimensional scaling ordination and chi-squared analysis, we found that high and low TIN quadrats contained different understory communities in 2003 and 2004, further supporting RHH. A comparison of restoration treatments demonstrated that thin/burn and burn-only treatments created higher N heterogeneity relative to the control. We also found that within prescribed burn treatments, TIN heterogeneity was positively correlated with fine-fuel consumption, a variable reflecting burn severity. These findings may lead to more informed restoration decisions that consider treatment effects on understory diversity in ponderosa pine/Douglas-fir ecosystems.
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Affiliation(s)
- Michael J Gundale
- Department of Ecosystem and Conservation Sciences, University of Montana, Missoula, Montana 59812, USA.
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Abstract
Few studies have considered whether plant taxa can be used as predictors of belowground faunal diversity in natural ecosystems. We examined soil mite (Acari) diversity beneath six grass species at the Konza Prairie Biological Station, Kansas, USA. We tested the hypotheses that soil mite species richness, abundance, and taxonomic diversity are greater (1) beneath grasses in dicultures (different species) compared to monocultures (same species), (2) beneath grasses of higher resource quality (lower C:N) compared to lower resource quality, and (3) beneath heterogeneous mixes of grasses (C3 and C4 grasses growing together) compared to homogeneous mixes (C3 or C4 grasses) using natural occurrences of plant species as treatments. This study is the first to examine the interaction between above- and belowground diversity in a natural setting with species-level resolution of a hyper-diverse taxon. Our results indicate that grasses in diculture supported a more species and phylogenetically rich soil mite fauna than was observed for monocultures and that this relationship was significant at depth but not in the upper soil horizon. We noted that mite species richness was not linearly related to grass species richness, which suggests that simple extrapolations of soil faunal diversity based on plant species inventories may underestimate the richness of associated soil mite communities. The distribution of mite size classes in dicultures was considerably different than those for monocultures. There was no difference in soil mite richness between grass combinations of differing resource quality, or resource heterogeneity.
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Affiliation(s)
- Mark G St John
- Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, Colorado 80523-1499, USA.
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Hättenschwiler S, Tiunov AV, Scheu S. Biodiversity and Litter Decomposition in Terrestrial Ecosystems. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2005. [DOI: 10.1146/annurev.ecolsys.36.112904.151932] [Citation(s) in RCA: 1083] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Alexei V. Tiunov
- Institute of Ecology and Evolution, Laboratory of Soil Zoology, 119071 Moscow, Russia;
| | - Stefan Scheu
- Institute of Zoology, University of Technology Darmstadt, 64287 Darmstadt, Germany;
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ZIMMER MARTIN, KAUTZ GUIDO, TOPP WERNER. Do woodlice and earthworms interact synergistically in leaf litter decomposition? Funct Ecol 2005. [DOI: 10.1111/j.0269-8463.2005.00926.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Aubert M, Hedde M, Decaëns T, Margerie P, Alard D, Bureau F. Facteurs contrôlant la variabilité spatiale de la macrofaune du sol dans une hêtraie pure et une hêtraie–charmaie. C R Biol 2005; 328:57-74. [PMID: 15714880 DOI: 10.1016/j.crvi.2004.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The soil macrofauna of a pure beech (PS) and a mixed beech-hornbeam (MS) stand was recorded using a sample design spatially explicit at stand level. Humic epipedon morphological and chemical properties, relative irradiance, soil bulk density, and the specific composition of the litter in MS were also investigated. The taxonomic diversity is nearly similar on both sites, but the average by sample is greater under PS. The main factors controlling soil macrofauna spatial variability were: litter quality under MS and humus form activity under PS. These results suggest a distal control (i.e. external to humic epipedon) of macrofauna spatial variability when the litter quality is variable and a proximal control (i.e. internal to humic epipedon) when it is uniform at the spatial scale of the study.
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Affiliation(s)
- Michaël Aubert
- Laboratoire d'écologie, UPRES-EA 1293, groupe Ecodiv, université de Rouen, 76821 Mont-Saint-Aignan cedex, France.
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He J, Wang Z, Fang J. Issues and prospects of belowground ecology with special reference to global climate change. ACTA ACUST UNITED AC 2004. [DOI: 10.1007/bf03184277] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sturrock CJ, Ritz K, Samson WB, Bown JL, Staines HJ, Palfreyman JW, Crawford JW, White NA. The effects of fungal inoculum arrangement (scale and context) on emergent community development in an agar model system. FEMS Microbiol Ecol 2002; 39:9-16. [PMID: 19709179 DOI: 10.1111/j.1574-6941.2002.tb00901.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Abstract Consequences of initial spatial organisation of model fungal communities upon their spatio-temporal development were investigated. Dynamics of prescribed two- and three-species 'communities' developing on tessellated agar tile model systems were analysed in terms of literal maps, principal component analyses, or as the proportion of species extant within tiles. It was established that for two-species interactions of equal patch size, large-scale (i.e. many constituent tiles) behaviour could be extrapolated from the relevant small-scale (i.e. pairs of tiles) interactions. However, relative patch sizes (scale) of species within tessellations influenced the times taken by individuals to colonise tiles and, hence, temporal behaviour of the system. Outcome of arrangements involving three species of equal patch size and inoculum potential, and prescribed with different mixing patterns, could not be directly extrapolated by reference to the outcome of pair-wise interactions between constituent species. Three-species arrangements attempt to limit assembly of lateral aggregates of individuals (patch size) and hence any effects of tile colonisation times, so as to reveal effects of nearest neighbour context within the complex community. Such arrangements indicate that spatial configuration of inoculum influences community development and reproducibility. They also suggest that spatial distribution of species affects persistence of individuals, which would otherwise be expected to be eliminated from the system. Two-species interactions appeared generally more reproducible than those comprising three species, and the sensitivity of fungal community development to temperature was not solely associated with influence on colony extension rate.
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Affiliation(s)
- Craig J Sturrock
- SIMBIOS, University of Abertay Dundee, Kydd Building, Dundee DD1 1HG, UK
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Saunders SC, Chen J, Drummer TD, Crow TR, Brosofske KD, Gustafson EJ. The patch mosaic and ecological decomposition across spatial scales in a managed landscape of northern Wisconsin, USA. Basic Appl Ecol 2002. [DOI: 10.1078/1439-1791-00084] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Korthals GW, Smilauer P, Van Dijk C, Van Der Putten WH. Linking above- and below-ground biodiversity: abundance and trophic complexity in soil as a response to experimental plant communities on abandoned arable land. Funct Ecol 2001. [DOI: 10.1046/j.0269-8463.2001.00551.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wardle DA, Barker GM, Yeates GW, Bonner KI, Ghani A. INTRODUCED BROWSING MAMMALS IN NEW ZEALAND NATURAL FORESTS: ABOVEGROUND AND BELOWGROUND CONSEQUENCES. ECOL MONOGR 2001. [DOI: 10.1890/0012-9615(2001)071[0587:ibminz]2.0.co;2] [Citation(s) in RCA: 240] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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HOOPER DAVIDU, BIGNELL DAVIDE, BROWN VALERIEK, BRUSSARD LIJBERT, MARK DANGERFIELD J, WALL DIANAH, WARDLE DAVIDA, COLEMAN DAVIDC, GILLER KENE, LAVELLE PATRICK, VAN DER PUTTEN WIMH, DE RUITER PETERC, RUSEK JOSEF, SILVER WHENDEEL, TIEDJE JAMESM, WOLTERS VOLKMAR. Interactions between Aboveground and Belowground Biodiversity in Terrestrial Ecosystems: Patterns, Mechanisms, and Feedbacks. Bioscience 2000. [DOI: 10.1641/0006-3568(2000)050[1049:ibaabb]2.0.co;2] [Citation(s) in RCA: 527] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Wardle DA, Bonner KI, Barker GM, Yeates GW, Nicholson KS, Bardgett RD, Watson RN, Ghani A. PLANT REMOVALS IN PERENNIAL GRASSLAND: VEGETATION DYNAMICS, DECOMPOSERS, SOIL BIODIVERSITY, AND ECOSYSTEM PROPERTIES. ECOL MONOGR 1999. [DOI: 10.1890/0012-9615(1999)069[0535:pripgv]2.0.co;2] [Citation(s) in RCA: 358] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Wardle DA, Bonner KI, Barker GM, Yeates GW, Nicholson KS, Bardgett RD, Watson RN, Ghani A. PLANT REMOVALS IN PERENNIAL GRASSLAND: VEGETATION DYNAMICS, DECOMPOSERS, SOIL BIODIVERSITY, AND ECOSYSTEM PROPERTIES. ECOL MONOGR 1999. [DOI: 10.1890/0012-9615(1999)069%5b0535:pripgv%5d2.0.co;2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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