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John L. Harper

Active 1957–2018

Also published as
JOHN L. HARPER
41
Papers
37,740
Citations
40
h-index
41
i10-index

Citations

Citations per year for John L. Harper1965: 2 citations1966: 2 citations1967: 1 citations1969: 2 citations1970: 6 citations1971: 3 citations1972: 7 citations1973: 7 citations1974: 11 citations1975: 20 citations1976: 16 citations1977: 29 citations1978: 12 citations1979: 53 citations1980: 81 citations1981: 81 citations1982: 57 citations1983: 58 citations1984: 95 citations1985: 67 citations1986: 76 citations1987: 74 citations1988: 63 citations1989: 78 citations1990: 72 citations1991: 73 citations1992: 55 citations1993: 83 citations1994: 95 citations1995: 69 citations1996: 78 citations1997: 89 citations1998: 65 citations1999: 82 citations2000: 113 citations2001: 97 citations2002: 118 citations2003: 129 citations2004: 119 citations2005: 137 citations2006: 116 citations2007: 101 citations2008: 81 citations2009: 113 citations2010: 103 citations2011: 102 citations2012: 80 citations2013: 87 citations2014: 78 citations2015: 59 citations2016: 39 citations2017: 51 citations2018: 36 citations2019: 96 citations2020: 74 citations2021: 71 citations2022: 26 citations2023: 21 citations2024: 38 citations2025: 13 citations1968: no citations, so this year is not shown

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 1,038 citing papers, 30.4% of this breakdownUnited Kingdom: 359 citing papers, 10.5% of this breakdownGermany: 174 citing papers, 5.1% of this breakdownCanada: 170 citing papers, 5% of this breakdownAustralia: 169 citing papers, 5% of this breakdownFrance: 154 citing papers, 4.5% of this breakdownNetherlands: 126 citing papers, 3.7% of this breakdownSwitzerland: 110 citing papers, 3.2% of this breakdownChina: 90 citing papers, 2.6% of this breakdownSpain: 86 citing papers, 2.5% of this breakdownSweden: 80 citing papers, 2.3% of this breakdownNew Zealand: 66 citing papers, 1.9% of this breakdown
0%30.4%Other 23.3%

Institutions

Fields

  • Environmental Science38.2%
  • Agricultural and Biological Sciences32.9%
  • Biochemistry, Genetics and Molecular Biology13.5%
  • Earth and Planetary Sciences3.6%
  • Medicine3.6%
  • Computer Science2.2%
  • Other6%

Topics

  • Ecology and Vegetation Dynamics Studies13.2%
  • Plant and animal studies12.1%
  • Evolution and Genetic Dynamics3.9%
  • Animal Ecology and Behavior Studies2.6%
  • Plant Parasitism and Resistance2.4%
  • Genetic diversity and population structure2.2%
  • Other63.6%

Coauthors

All papers

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  1. Resource Competition and Community Structure.

    Authors: John L. Harper, David Tilman - Journal of Ecology 1983 cited by 4,234

  2. Population Biology of Plants.

    Authors: B. R. Trenbath, John L. Harper - Journal of Applied Ecology 1978 cited by 7,010

  3. The Shapes and Sizes of Seeds

    Authors: John L. Harper, P. H. LOVELL, K. G. Moore - Annual Review of Ecology and Systematics 1970 cited by 1,245

  4. Biodiversity: measurement and estimation. Preface

    Authors: John L. Harper, David L. Hawksworth - Philosophical Transactions of the Royal Society B Biological Sciences 1994 cited by 408

  5. The value of a leaf

    Authors: John L. Harper - Oecologia 1989 cited by 227

  6. Ecology: Individuals, Populations and Communities.

    Authors: Jonathan Silvertown, Michael Begon, John L. Harper, Colin R. Townsend - Journal of Ecology 1987 cited by 768

  7. The Behaviour of Seeds in Soil: I. The Heterogeneity of Soil surfaces and its Role in Determining the Establishment of Plants from Seed

    Authors: John L. Harper, John Trevor Williams, G. R. Sagar - Journal of Ecology 1965 cited by 577

  8. THE EVOLUTION AND ECOLOGY OF CLOSELY RELATED SPECIES LIVING IN THE SAME AREA

    Authors: John L. Harper, J.N. Clatworthy, I. H. McNaughton, G. R. Sagar - Evolution 1961 cited by 349

  9. Ecology; Individuals, Populations and Communities

    Authors: Eli Groner, Michael Begon, John L. Harper, Carol R. Townsend - Journal of Animal Ecology 1997 cited by 301

  10. Ecology: Individuals, Populations and Communities

    Authors: Eldon H. Franz, Michael Begon, John L. Harper, Colin R. Townsend - Journal of Range Management 1989 cited by 283

  11. Studies in the Dynamics of Plant Populations: V. Mechanisms Governing the Sex Ratio in Rumex Acetosa and R. Acetosella

    Authors: P. D. Putwain, John L. Harper - Journal of Ecology 1972 cited by 237

  12. Population Biology of Plants

    Authors: John L. Harper - 1977 cited by 8,747

  13. Ecology: Individuals, Populations and Communities.

    Authors: Steward T. A. Pickett, Walter P. Carson, Michael Begon, John L. Harper, Colin R. Townsend - Brittonia 1987 cited by 3,182

  14. Ecology: From Individuals to Ecosystems

    Authors: Michael Begon, Colin R. Townsend, John L. Harper - 2005 cited by 1,646

  15. Ecology: Individuals, Populations and Communities.

    Authors: Aulay Mackenzie, Michael Begon, John L. Harper, Colin R. Townsend - Journal of Applied Ecology 1997 cited by 886

  16. The Demography of Plants

    Authors: John L. Harper, James F. White - Annual Review of Ecology and Systematics 1974 cited by 781

  17. Occupation of Biological Space During Seedling Establishment

    Authors: Marlaina Ross, John L. Harper - Journal of Ecology 1972 cited by 595

  18. A Darwinian Approach to Plant Ecology

    Authors: John L. Harper - Journal of Applied Ecology 1967 cited by 561

  19. The Reproductive Strategy of Higher Plants: I. The Concept of Strategy with Special Reference to Senecio Vulgaris L.

    Authors: John L. Harper, John C. Ogden - Journal of Ecology 1970 cited by 476

  20. Correlated Changes in Plant Size and Number in Plant Populations

    Authors: James F. White, John L. Harper - Journal of Ecology 1970 cited by 464

  21. Interference in Dune Annuals: Spatial Pattern and Neighbourhood Effects

    Authors: Richard N. Mack, John L. Harper - Journal of Ecology 1977 cited by 384

  22. Contribution to reproductive effort by photosynthesis of flowers and fruits

    Authors: F. A. Bazzaz, R.W. Carlson, John L. Harper - Nature 1979 cited by 378

  23. The Growth, Distribution and Neighbour Relationships of Trifolium Repens in a Permanent Pasture: IV. Fine-Scale Biotic Differentiation

    Authors: Roy Turkington, John L. Harper - Journal of Ecology 1979 cited by 320

  24. The Regulation of Plant and Tiller Density in a Grass Sward

    Authors: Sandra E. Kays, John L. Harper - Journal of Ecology 1974 cited by 315