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  • Ma, Jin-ZeNortheast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Gannan Normal Univ, Res Ctr Environm Engn & Technol, Sch Geog & Environm Engn, Ganzhou, Peoples R China.;Northeast Normal Univ, Inst Peat & Mire Res, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun, Peoples R China.;Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Peoples R China. (author)

Environmental Together With Interspecific Interactions Determine Bryophyte Distribution in a Protected Mire of Northeast China

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-02-24
  • Frontiers Media SA,2020
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-410068
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-410068URI
  • https://doi.org/10.3389/feart.2020.00032DOI
  • https://res.slu.se/id/publ/104533URI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Question: What environmental variables and plant–plant interactions affect mire bryophyte distribution and does the surrounding landscape with human disturbance play a role in the mire bryophyte distribution?Location: Jinchuan mire, Northeast China.Methods: We studied the spatial distribution of bryophytes in 100 1 × 1 m quadrats in the mire. Spatial variables were simulated by analysis of the distance-based Moran’s eigenvector maps (dbMEM). Variation partitioning analysis was used to reveal the relative contribution of spatial and environmental variables to bryophytes. The relationship between environmental variables and bryophytes was tested by redundancy analysis (RDA). We used co-occurrence and niche overlap models to detect interactions among bryophytes. We also studied the influence of the surrounding landscape on the distribution of bryophytes in relation to water chemistry.Results: The eight bryophytes occupying part of the mire had both a general distribution trend and a local spatial structure. Over 40% of the total variation in cover among bryophytes could be explained by spatial and environmental variables. In this fraction, the environmental variables explained 29.7% of the variation, of which only 4.5% was not spatially structured. RDA showed the contribution of dwarf shrub cover (SC), Na, and P to the bryophyte distribution was relatively large. Concentration of Na and SC decreased gradually from north to south, and contributed most to the variation in species composition along the first axis. The concentrations of P decreased from east to west, and contributed along the second axis. All the bryophyte species were spatially isolated but with large niche overlaps, indicating that the bryophyte community was structured by interspecific competition.Conclusion: Sodium mainly originating from the volcanic hill and P from the paddy fields were the main environmental factors affecting the bryophyte distribution. Concentrations of Na and P showed spatial structure, and resulted in induced spatial dependence (ISD) playing a major role in the spatial structure of the bryophyte community. Dwarf shrubs affected by nutrient distribution in the mire significantly influenced the bryophyte distribution in the mire. We conclude that the surrounding ecosystems had important influence on bryophyte distribution via nutrient influx. Furthermore, competitive interactions exacerbated the spatial separation of bryophytes.

Subject headings and genre

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  • Chen, XuChina Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan, Peoples R China. (author)
  • Mallik, Azim U.Northeast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Lakehead Univ, Dept Biol, Thunder Bay, ON, Canada. (author)
  • Bu, Zhao-JunNortheast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Northeast Normal Univ, Inst Peat & Mire Res, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun, Peoples R China.;Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Peoples R China. (author)
  • Zhang, Ming-MingNortheast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Northeast Normal Univ, Inst Peat & Mire Res, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun, Peoples R China.;Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Peoples R China. (author)
  • Wang, Sheng-ZhongNortheast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Northeast Normal Univ, Inst Peat & Mire Res, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun, Peoples R China.;Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Peoples R China. (author)
  • Sundberg, SebastianSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Växtekologi och evolution,Swedish Univ Agr Sci, Swedish Species Informat Ctr, Uppsala, Sweden.,ARTDATABANKEN,Swedish Species Information Centre,Uppsala University(Swepub:slu)49806 (author)
  • Northeast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun, Peoples R China.;Gannan Normal Univ, Res Ctr Environm Engn & Technol, Sch Geog & Environm Engn, Ganzhou, Peoples R China.;Northeast Normal Univ, Inst Peat & Mire Res, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun, Peoples R China.;Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Peoples R China.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan, Peoples R China. (creator_code:org_t)
  • Sveriges lantbruksuniversitet

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  • In:Frontiers in Earth Science: Frontiers Media SA82296-6463

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