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Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community

SHA Di,  GAO Meixiang,  SUN Xin,  WU Donghui,  ZHANG Xueping

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文章导航 > Chinese Geographical Science  > 2015 >  25(5): 582-590
SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. 中国地理科学, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
引用本文: SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. 中国地理科学, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
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SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. Chinese Geographical Science, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
Citation: SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. Chinese Geographical Science, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
shu

Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community

doi: 10.1007/s11769-015-0778-6
  • 1.

    Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China;

  • 2.

    College of Geographical Science, Harbin Normal University, Harbin 150025, China;

  • 3.

    Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China

基金项目: Under the auspices of National Natural Science Foundation of China (No. 41101049, 41471037, 41371072, 41430857), University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (No. UNPYSCT- 2015054), Distinguished Young Scholar of Harbin Normal University (No. KGB201204), Excellent Youth Scholars of Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences (No. DLSYQ13003)
详细信息
    通讯作者:

    GAO Meixiang.E-mail:gmx102@163.com; WU Donghui.E-mail:wudonghui@neigae.ac.cn

Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community

  • 1.

    Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China;

  • 2.

    College of Geographical Science, Harbin Normal University, Harbin 150025, China;

  • 3.

    Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China

Funds: Under the auspices of National Natural Science Foundation of China (No. 41101049, 41471037, 41371072, 41430857), University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (No. UNPYSCT- 2015054), Distinguished Young Scholar of Harbin Normal University (No. KGB201204), Excellent Youth Scholars of Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences (No. DLSYQ13003)
More Information
    Corresponding author: GAO Meixiang.E-mail:gmx102@163.com; WU Donghui.E-mail:wudonghui@neigae.ac.cn

  • 摘要: Understanding the underlying processes of how communities are structured remains a central question in community ecology. However, the mechanisms of the soil animal community are still unclear, especially for communities on a small scale. To evaluate the relative roles of biotic interactions and environmental and spatial processes in a soil collembolan community, a field experiment was carried out on a small scale (50 m) in the farmland ecosystem of the Sanjiang Plain, Northeast China. In August and October, 2011, we took 100 samples each month in a 50 m × 50 m plot using a spatially delimited sampling design. Variation partitioning was used to quantify the relative contributions of the spatial and environmental variables. A null model was selected to test for the non-randomness pattern of species co-occurrence and body size in assemblages of collembolans and to test whether the pattern observed was the result of environmental or biotic processes that structured the community on a small scale. The results showed that large variance was accounted for by spatial variables (18.99% in August and 21.83% in October, both were significant). There were relatively lower effects of environmental variation (3.56% in August and 1.45% in October, neither was significant), while the soil water content, soil pH and soybean height explained a significant portion of the variance that was observed in the spatial pattern of the collembolan community. Furthermore, the null model revealed more co-occurrence than expected by chance, suggesting that collembolan communities had a non-random co-occurrence pattern in both August and October. Additionally, environmental niche overlap and the body size ratio of co-occurrence showed that interspecific competition was not influential in collembolan community structuring. Considering all of the results together, the contributions of spatial and environmental processes were stronger than biotic interactions in the small-scale structuring of a soil collembolan community.
    Abstract: Understanding the underlying processes of how communities are structured remains a central question in community ecology. However, the mechanisms of the soil animal community are still unclear, especially for communities on a small scale. To evaluate the relative roles of biotic interactions and environmental and spatial processes in a soil collembolan community, a field experiment was carried out on a small scale (50 m) in the farmland ecosystem of the Sanjiang Plain, Northeast China. In August and October, 2011, we took 100 samples each month in a 50 m × 50 m plot using a spatially delimited sampling design. Variation partitioning was used to quantify the relative contributions of the spatial and environmental variables. A null model was selected to test for the non-randomness pattern of species co-occurrence and body size in assemblages of collembolans and to test whether the pattern observed was the result of environmental or biotic processes that structured the community on a small scale. The results showed that large variance was accounted for by spatial variables (18.99% in August and 21.83% in October, both were significant). There were relatively lower effects of environmental variation (3.56% in August and 1.45% in October, neither was significant), while the soil water content, soil pH and soybean height explained a significant portion of the variance that was observed in the spatial pattern of the collembolan community. Furthermore, the null model revealed more co-occurrence than expected by chance, suggesting that collembolan communities had a non-random co-occurrence pattern in both August and October. Additionally, environmental niche overlap and the body size ratio of co-occurrence showed that interspecific competition was not influential in collembolan community structuring. Considering all of the results together, the contributions of spatial and environmental processes were stronger than biotic interactions in the small-scale structuring of a soil collembolan community.
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  • 收稿日期:  2015-04-23
  • 修回日期:  2015-06-07
  • 刊出日期:  2015-05-27

Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community

doi: 10.1007/s11769-015-0778-6
  • 1. Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China;
  • 2. College of Geographical Science, Harbin Normal University, Harbin 150025, China;
  • 3. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
    • 基金项目:  Under the auspices of National Natural Science Foundation of China (No. 41101049, 41471037, 41371072, 41430857), University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (No. UNPYSCT- 2015054), Distinguished Young Scholar of Harbin Normal University (No. KGB201204), Excellent Youth Scholars of Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences (No. DLSYQ13003)
    通讯作者: GAO Meixiang.E-mail:gmx102@163.com; WU Donghui.E-mail:wudonghui@neigae.ac.cn
  • 收稿日期: 2015-04-23
  • 修回日期: 2015-06-07
  • 刊出日期: 2015-05-27

摘要: Understanding the underlying processes of how communities are structured remains a central question in community ecology. However, the mechanisms of the soil animal community are still unclear, especially for communities on a small scale. To evaluate the relative roles of biotic interactions and environmental and spatial processes in a soil collembolan community, a field experiment was carried out on a small scale (50 m) in the farmland ecosystem of the Sanjiang Plain, Northeast China. In August and October, 2011, we took 100 samples each month in a 50 m × 50 m plot using a spatially delimited sampling design. Variation partitioning was used to quantify the relative contributions of the spatial and environmental variables. A null model was selected to test for the non-randomness pattern of species co-occurrence and body size in assemblages of collembolans and to test whether the pattern observed was the result of environmental or biotic processes that structured the community on a small scale. The results showed that large variance was accounted for by spatial variables (18.99% in August and 21.83% in October, both were significant). There were relatively lower effects of environmental variation (3.56% in August and 1.45% in October, neither was significant), while the soil water content, soil pH and soybean height explained a significant portion of the variance that was observed in the spatial pattern of the collembolan community. Furthermore, the null model revealed more co-occurrence than expected by chance, suggesting that collembolan communities had a non-random co-occurrence pattern in both August and October. Additionally, environmental niche overlap and the body size ratio of co-occurrence showed that interspecific competition was not influential in collembolan community structuring. Considering all of the results together, the contributions of spatial and environmental processes were stronger than biotic interactions in the small-scale structuring of a soil collembolan community.

English Abstract

SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. 中国地理科学, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
引用本文: SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. 中国地理科学, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
shu
SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. Chinese Geographical Science, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
Citation: SHA Di, GAO Meixiang, SUN Xin, WU Donghui, ZHANG Xueping. Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community[J]. Chinese Geographical Science, 2015, 25(5): 582-590. doi: 10.1007/s11769-015-0778-6
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