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Determinants of the reproductive yield of competing plants in a stand

Research Project

Project/Area Number 11440225
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field 生態
Research InstitutionTohoku University

Principal Investigator

HIROSE Tadaki  Tohoku University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (90092311)

Co-Investigator(Kenkyū-buntansha) HARADA Yuko  Tohoku University, Graduate School of Science, Assistant Prof, 大学院・理学研究科, 助手 (80312544)
HIKOSAKA Kouki  Tohoku University, Graduate School of Science, Associate Prof, 大学院・理学研究科, 助教授 (10272006)
SAKAI Satoki  Tohoku University, Graduate School of Science, Associate Prof, 大学院・理学研究科, 助教授 (90272004)
HIKOSAKA Hisae  Tohoku University, Graduate School of Science, Assistant Prof, 大学院・理学系研究科・附属植物園, 助手 (20323503)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥12,400,000 (Direct Cost: ¥12,400,000)
Fiscal Year 2000: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1999: ¥9,700,000 (Direct Cost: ¥9,700,000)
Keywordsplant stand / competition / reproduction / interaction / nitrogen use / light acquisition / seed production / 個体間競争 / 繁殖収量 / 窒素 / 光 / トレードオフ / モデル / 資源 / 密度実験 / オオオナモミ / 種子収量 / 栄養成長
Research Abstract

We studied the effect of CO_2 elevation on the reproductive yield of Xanthium canadense. Although the plant growth and total reproductive yield (seeds plus capsules) increased with CO_2 elevation, seed production did not increase. Analysing N use in plant growth, we found retranslocation of N from leaves to seeds was retarded at high CO_2 due to increased longevity of leaves and low temperature. Translocation was lowered by lower air temperature at later growing season. Thus seed production was constrained by the availability of N.
We developed a new method to separate the effect of self-shading from that of shading from neighbors and applied it to stands of Xanthium canadense established with different densities. We estimated (1) the intensity of shading for plants in the stand and (2) self-shading for plants isolated from the stand. Shading from neighbors was estimated as a subtraction of (2) from (1). We found that the interaction among individuals was strong in a stand and that the intensity increased with increasing plant densities.
From an analysis of trade-off between size and number in seed production, we proposed a sink-limiting growth model, where contraints in the absorption rate of resources from mother plants were assumed with a loss of resources due to maintenance respiration. This model predicts that seed size does not increase reciprocally to the reduction in seed number. This is because an efficiency in using storage substance decreases with a smaller number of seeds and thus benefits increasing seed number at the expense of seed size. The optimal seed size is smaller than that predicted by Smith and Fretwell.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] Anten NPR,Hikosaka K Hirose T: "Nitrogen utilisation and the photosynthetic system."B Marshall, J Roberts (eds) Leaf Development and Canopy Growth.Sheffield Academic Press, Sheffield, UK.. 171-203 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hikosaka K,Hirose T: "Photosynthetic nitrogen use efficiency in species coexisting in a warm-temperate evergreen forest."Tree Physiology. 20. 1249-1254 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai,S.: "Biased sex allocation in hermaphroditic plants."Journal of Plant Research. 113. 335-342 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai,S.: "Size-number trade-off and allocation to flower production in animal-pollinated plants."Plant Species Biology. 15. 261-268 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ishii,H.S.& Sakai,S.: "Optimal timing of flower abortion; experimental study on Erythronium japoncum(Liliaceae)."Functional Ecology. 14. 122-128 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hikosaka K,Hirose T: "Nitrogen uptake and use of competing individuals in a Xanthium canadense stand."Oecologia. 126. 174-181 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Anten NPR,Hirose T: "Limitations on photosynthesis of competing individuals in stands and consequences for canopy structure."Oecologia. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ishii,H.S.& Sakai,S.: "Effects of floral display size and floral positions on individual floral longevities in racemes of Narthecium asiaticum(Liliaceae)."Functional Ecology. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai,S.and Harada,Y.: "Why do large mothers produce large offspring? : theory and a test."American Naturalist. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai,S.and Harada,Y.: "Sink-limitation and size-number trade-off of organs : production of organs using a fixed amount of reserves."Evolution. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Anten NPR, Hikosaka K Hirose T.: "Nitrogen utilisation and the photosynthetic system."B Marshall, J Roberts (eds) Leaf Development and Canopy Growth. Sheffield Academic Press, Sheffield, UK.. 171-203 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hikosaka K, Hirose T.: "Photosynthetic nitrogen use efficiency in species coexisting in a warm-temperate evergreen forest."Tree Physiology. 20. 1249-1254 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai, S.: "Biased sex allocation in hermaphroditic plants."Journal of Plant Research. 113. 335-342 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai, S.: "Size-number trade-off and allocation to flower production in animal-pollinated plants."Plant Species Biology. 15. 261-268 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ishii, H.S.& Sakai, S.: "Optimal timing of flower abortion ; experimental study on Erythronium japoncum (Liliaceae)."Functional Ecology. 14. 122-128 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hikosaka K, Hirose T.: "Nitrogen uptake and use of competing individuals in a Xanthium canadense stand."Oecologia. 126. 174-181 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Anten NPR, Hirose T.: "Limitations on photosynthesis of competing individuals in stands and consequences for canopy structure."Oecologia. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ishii, H.S.& Sakai, S.: "Effects of floral display size and floral positions on individual floral longevities in racemes of Narthecium asiaticum (Liliaceae)."Functional Ecology. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai, S.and Harada, Y.: "Why do large mothers produce large offspring? : theory and a test."American Naturalist. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakai, S.and Harada, Y.: "Sink-limitation and size-number trade-off of organs : production of organs using a fixed amount of reserves."Evolution. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Anten NPR,Hikosaka K,Hirose T: "Nitrogen utilisation and the photosynthetic system."B Marshall, J Roberts (eds) Leaf Development and Canopy Growth. Sheffield Academic Press, Sheffield, UK.. 171-203 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hikosaka K,Hirose T: "Photosynthetic nitrogen use efficiency in species coexisting in a warm-temperate evergreen forest."Tree Physiology. 20. 1249-1254 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakai,S.: "Biased sex allocation in hermaphroditic plants."Journal of Plant Research. 113. 335-342 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakai,S.: "Size-number trade-off and allocation to flower production in animal-pollinated plants."Plant Species Biology. 15. 261-268 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ishii,H.S.& Sakai,S.: "Optimal timing of flower abortion ; experimental study on Erythronium japoncum (Liliaceae)."Functional Ecology. 14. 122-128 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hikosaka K,Hirose T: "Nitrogen uptake and use of competing individuals in a Xanthium canadense stand."Oecologia. 126. 174-181 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Anten NPR,Hirose T: "Limitations on photosynthesis of competing individuals in stands and consequences for canopy structure."Oecologia. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ishii,H.S.& Sakai,S.: "Effects of floral display size and floral positions on individual floral longevities in racemes of Narthecium asiaticum (Liliaceae)."Functional Ecology. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakai,S.and Harada,Y.: "Why do large mothers produce large offspring?: theory and a test."American Naturalist. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakai,S.and Harada,Y.: "Sink-limitation and size-number trade-off of organs : production of organs using a fixed amount of reserves."Evolution. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Anten N.P.R.and Hirose T.: "Interspecific differences in above-ground growth patterns result in spatial and temporal partitioning of light among species in a fall-grass meadow"Journal of Ecology. 87. 583-597 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Harada Y.: "Short-vs. Long-range Disperser: the Evolutionarily Stable Allocation in a Lattice-Structured Habitat"J. theor. Biol.. 201. 171-187 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hikosaka K.,Sudoh S.and Hirose T.: "Light acquisition and use of individuals competing in a sense stand of an annual herb, Xanthium canadense"Oecologia. 118. 388-396 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hikosaka K.,Murakami A.and Hirose T.: "Balancing carboxylation and regeneration of ribulose-1,5-bisphosphate in leaf photosynthesis: temperature acclimation of an evergreen tree, Quercus myrsinaefolia"Plant, Cell and Environment. 22. 841-849 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Sakai S.: "Female-biased sexual allocation in cosexual plants: result of sink-limited growth of fruits"Evolutionary Ecology Research. 1. 953-957 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Sakai S.,& Ishii H.S.: "Why be completely outcrossing? evolutionarily stable outcrossing strategies in an environment where outcross pollenavailability is unpredictable"Evolutionary Ecology Research. 201. 171-187 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Anten N.P.R.,Hikosaka K.and Hirose T.: "Nitrogen utilisation and the photosynthetic system"In: B. Marshall and J.A. Roberts (eds) Leaf Development and Canopy Growth, Sheffield Academic Press, UK. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ishii H.S.& Sakai S.: "Optimal timing of flower abortion; experimental study on Erythronium japoncum (Liliaceae)"Functional Ecology. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] Sakai S.: "Size-number trade-off and allocation to flower pruduction in animal-pollinated plants"Plant Species Biology. (in press).

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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