Variations in Trophic Niches of Soil Microarthropods with Elevation in Two Distant Mountain Regions in Eurasia as Indicated by Stable Isotopes (15n, 13c) DOI
Xue Pan, Zhijing Xie, Zheng Zhou

et al.

Published: Jan. 1, 2023

Knowledge on the trophic niche of animal species is important for understanding their coexistence and hence diversity. Trophic niches have been shown to vary with environmental conditions, but consequences shifts food-web structure functioning little studied this applies in particular belowground communities. Here, using stable isotopes (15N, 13C), we investigated oribatid mites as model soil taxon along elevational gradients two mountain ranges Eurasia, Alps Austria Changbai Mountain China. The results showed pronounced differences use basal resources (Δ13C values) positions (Δ15N between mountains due different parent rock calcareous soils basalt bedrock Mountain. Further, changed altitude, primarily related changes litter quality. Differences were functional traits such body mass reproductive mode. Generally, isotope values closely correlated underlining importance morphological characteristics well variations niches. Moreover, differed parthenogenetic sexual species, depended rock, higher plasticity Overall, our findings highlight decisive role structuring montane food webs provide novel insight into factors responsible invertebrates.

Language: Английский

Variations in body size and reproductive mode of oribatid mites along an altitudinal gradient in a temperate mountain region DOI Creative Commons
Baoyang Yu, Xue Pan, Haitao Wu

et al.

Geoderma, Journal Year: 2025, Volume and Issue: 454, P. 117173 - 117173

Published: Jan. 15, 2025

Language: Английский

Citations

2
Trophic niches of Collembola communities change with elevation, but also with body size and life form DOI Creative Commons
Johannes Lux, Zhijing Xie, Xin Sun

et al.

Oecologia, Journal Year: 2024, Volume and Issue: 204(3), P. 491 - 504

Published: Jan. 24, 2024

Abstract Climate change will likely increase habitat loss of endemic tree species and drives forest conversion in mountainous forests. Elevation gradients provide the opportunity to predict possible consequences such changes. While compositions various taxa have been investigated along elevation gradients, data on trophic changes soil-dwelling organisms are scarce. Here, we Collembola communities northern slope Changbai Mountain, China. We sampled primary forests at seven elevations (800–1700 m asl). measured individual body lengths bulk stable isotopes level. further categorized into life forms. The community-weighted means Δ 15 N 13 C values as well minimum isotopic uniqueness increased with increasing elevation, while range decreased. Maximum differed between but showed no linear trend. Further, occurring across all elevation. Changes were most pronounced hemiedaphic species, strongest euedaphic species. decreasing size Overall, results suggest that functioning decomposers lower shift towards secondary or even predators scavengers higher indicate access alternative food resources depends form varies ecosystems.

Language: Английский

Citations

7
Trophic positions of soil microarthropods in forests increase with elevation, but energy channels remain unchanged DOI Creative Commons
Johannes Lux, Zhijing Xie, Xin Sun

et al.

Ecosphere, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 1, 2024

Abstract Mountain forests are at risk as the consequences of climate change will likely lead to altered tree species boundaries. Characterizing food webs along elevation gradients in primary may help predict potential such changes, for example with regard decomposition dead organic matter. Here, first time, we studied trophic variations two species‐rich microarthropod taxa, Collembola and Oribatida, an gradient forest Changbai Mountain, China. Samples were taken seven elevations 150‐m elevational difference between 800 1700 m. At each elevation, Oribatida extracted from litter samples eight subplots. We applied three state‐of‐the‐art methods elucidate positions basal resource use community level: Bulk stable isotope analysis nitrogen (Δ 15 N bulk ) carbon 13 C ), compound‐specific amino acids (CSIA‐AA), dietary routing neutral lipid fatty (NLFAs). Trophic calculated using Δ CSIA‐AA (TP CSIA both taxa increased similarly by about half one third a position, respectively. Stable mixing models linear discriminant bootstrapping δ essential indicated fungi most important all taxa. Also, proportions marker NLFAs changed little across taxa; overall high linoleic acid fungal contributions, but contribution bacterial markers was generally higher than Oribatida. did not respond linearly gradient; however, changes differed A strong relationship phenylalanine basis energy channels Overall, web functioning changing types gradients, microarthropods switching feeding closer base lower levels elevations, potentially compromising their role nutrient cycling.

Language: Английский

Citations

6
Biogeography of oribatid mites (Acari) reflects their ancient origin and points to Southeast Asia as centre of radiation DOI Creative Commons
Jing‐Zhong Lu, Xue Pan, Stefan Scheu

et al.

Journal of Biogeography, Journal Year: 2024, Volume and Issue: 51(11), P. 2211 - 2220

Published: July 25, 2024

Abstract Aim Understanding the worldwide distribution of species has fascinated scientists at least since Alfred Russel Wallace. Global patterns belowground biodiversity may fundamentally differ from those aboveground organisms. Here, we examine global pattern and potential mechanisms driving endemism overlap a soil microarthropod taxon. Location Global. Taxon Oribatida, Acari. Methods We investigated oribatid mites in five biogeographic regions including North America, South Eurasia, Africa Oceania using world list on ~11,400 described (including subspecies) species, genera family levels. Results Main Conclusion found that most “endemic” (i.e., only occurring one regions) (4297) also (143) occurred Eurasia indicating this region was centre radiation mites. Within mite diversity highest Southeast Asia (1975 species) likely reflecting long tropical history (at 200 million years), high fluctuations water levels island formation Sunda Shield. On level, did not between are much older than tropics existence Pangaea supporting view their origin early Palaeozoic. Finally, among 55 all nearly 50% reproduce by thelytoky colonize latitude ecosystems, compared to sexual disproportionally number parthenogenetic is distributed suggesting they possess general‐purpose genotype. The other ~50% sexuals predominantly occur tropical/subtropical across resource shortage favours sex. Our findings highlight importance biogeographical studies animals better understand diversity, life strategies.

Language: Английский

Citations

4
Older Lineages of Oribatid Mites in Mountain Ranges Have Broader Geographic Ranges and Exhibit More Generalistic Traits DOI Creative Commons
Xue Pan, Bastian Heimburger, Ting‐Wen Chen

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(3)

Published: Feb. 28, 2025

ABSTRACT Understanding ecological and evolutionary mechanisms that drive biodiversity patterns is important for comprehending biodiversity. Despite being critically to the functioning of ecosystems, driving belowground are little understood. We investigated radiation trait diversity soil oribatid mites from two mountain ranges, is, Alps in Austria Changbai Mountain China, at similar latitude temperate zone differing formation processes (orogenesis) exposed different climates. collected sequenced forests 950–1700 m each embedded them into chronogram species Eurasia. phylogenetic age compared node with uplift time Mountain. then inspected trophic variation, geographical range size, reproductive mode, identified traits promote mite survival evolution montane forest ecosystems. found on phylogenetically older than Alps. All evolved long before Mountain, but some after orogenesis On more possess broader have larger sizes, often reproduce via parthenogenesis Species survived or colonized thereafter, supporting view generalistic old animal species. Collectively, our findings highlight combining phylogeny allow deeper insight forces shaping

Language: Английский

Citations

0
The Key Role of Vicariance for Soil Animal Biogeography in a Biodiversity Hotspot Region DOI Creative Commons
Xue Pan, Holger Kreft, Jing‐Zhong Lu

et al.

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(5)

Published: April 27, 2025

ABSTRACT Aim The Indo‐Australian Archipelago is known as a biodiversity hotspot with high levels of endemism typically ascribed to vicariance reflected by the ‘Wallace's line’. However, it unknown how has affected belowground biodiversity, especially process‐based beta diversity. Here, we relate diversity soil oribatid mite (Oribatida, Acari) assemblages geographic distance well climatic and factors explore shaping mites across 11 regions Archipelago. Location Time Period Present. Major Taxa Studied Oribatida, Acari. Methods We compiled list 2549 species in investigated level at species, genus family level. then summarised biogeographical dissimilarity patterns using ordination clustering methods compared zoological boundaries based on aboveground taxa such Wallace's, Lydekker's, Weber's Holt's lines. integrated data geography, climate reveal key drivers compositional among Mantel tests. Results Generally, was high; they formed three groups (west New Guinea, Guinea south Guinea) changing from northwest southeast. reflect integrate lines Weber, Lydekker Holt. Species turnover generally correlated distance, reflecting critical role dispersal‐limited mites. Main Conclusions Our results, for first time, demonstrate contrasting below‐ organisms Archipelago, elucidate distance‐based structured animal this region.

Language: Английский

Citations

0
Variations in trophic niches of soil microarthropods with elevation in two distant mountain regions in Eurasia as indicated by stable isotopes (15N, 13C) DOI
Xue Pan, Zhijing Xie, Zheng Zhou

et al.

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 185, P. 109162 - 109162

Published: Aug. 25, 2023

Language: Английский

Citations

9
Season affects soil oribatid mite communities more than tree diversity in subtropical forests DOI Creative Commons
Yannan Chen, Ming‐Qiang Wang, Xue Pan

et al.

Geoderma, Journal Year: 2024, Volume and Issue: 443, P. 116826 - 116826

Published: Feb. 24, 2024

Biodiversity is declining on a global scale with detrimental effects ecosystem functioning. Effects of reduced tree diversity the aboveground animals have been studied in detail, whereas response soil remains poorly understood. We analyzed seasonal variations oribatid mite communities as major detritivores along gradient implemented - Ecosystem Functioning Experiment China. A total 24,898 mites were collected over two years and eight sampling periods. Generally, density species richness significantly differed among four seasons highest winter. By contrast, did not affect main factor, but its effect varied season, however, generally small. Also, community composition diversity. Further, functional traits changed seasons, this although these Overall, season considerably exceeded that diversity, indicating are mainly structured by abiotic factors resources outweighing role The results highlight necessity considering temporal when analyzing relationships between plant animal communities.

Language: Английский

Citations

3
Responses of soil greenhouse gas emissions to soil mesofauna invasions and its driving mechanisms in the alpine tundra: A microcosm study DOI

Yujuan Kang,

Haitao Wu, Qiang Guan

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168255 - 168255

Published: Nov. 5, 2023

Language: Английский

Citations

4
Biodiversity in mountain soils above the treeline DOI Open Access
Nadine Praeg, Michael Steinwandter, Davnah Urbach

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 23, 2023

ABSTRACT Despite the importance of healthy soils for human livelihood, wellbeing, and safety, current gaps in our knowledge understanding biodiversity soil are numerous, undermining conservation efforts. These particularly wide mountain regions where especially important safety yet evidence is accumulating ongoing degradation, posing significant threats to ecosystem functioning settlements. To analyse these detail, we synthesise research on global diversity microorganisms, cryptogams, invertebrates above treeline. This synthesis based a semi-quantitative survey literature an expert-based analysis. Our work reveals not only deficiencies geographic cover but also taxonomic coverage, among protists invertebrates, lack (functional ecological) description uncultivated majority prokaryotes, fungi, protists. We subsequently build this overview highlight opportunities as systems co-occurring species that interact complex environmental matrices fulfil critical functions make essential contributions life land. Closing crucial enhance promote laws guidelines advancing international targets mountains. Addressing sparse biased data, recognizing impact changes ecosystems, advocating dedicated policies strategies safeguard their biodiversity. GLOSSARY

Language: Английский

Citations

2