John L. Harper

44.2k citations

154 papers · 35.5k indexed · 15 hit papers · h-index 70

Impact in

Nature and Landscape Conservation top 0.01%
- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
Ecology, Evolution, Behavior and Systematics top 0.01%
- Plant and animal studies

Papers in

Nature and Landscape Conservation 44
- Ecology and Vegetation Dynamics Studies 40
Ecology, Evolution, Behavior and Systematics 45
- Plant and animal studies 28
- Botanical Research and Chemistry 8

Co-authors: B. R. Trenbath David Tilman Michael Begon Colin R. Townsend Steward T. A. Pickett Walter P. Carson James F. White G. R. Sagar
Journals: Journal of Ecology (47 papers)New Phytologist (11 papers)Oecologia (7 papers)Nature (6 papers)Journal of Applied Ecology (5 papers)
Partner nations: United Kingdom Canada United States

In The Last Decade

John L. Harper

147 papers receiving 29.0k citations

Hit Papers

15 papers align trajectories log scale

Ecology: From Individuals to Ecosystems 2005 · 1.2k citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2005 Medical Entomology and Zoology
1997 Journal of Applied Ecology
1987 Brittonia
1987 Journal of Ecology
1983 Journal of Ecology
1978 Journal of Applied Ecology
1977 Medical Entomology and Zoology
1974 Annual Review of Ecology and Systematics
1972 Journal of Ecology
1970 Journal of Ecology
1970 Annual Review of Ecology and Systematics
1970 Journal of Ecology
1967 Journal of Ecology
1965 Journal of Ecology
1961 Evolution

Peers

Countries citing papers authored by John L. Harper

Since Specialization

Citations

This map shows the geographic impact of John L. Harper's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John L. Harper with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John L. Harper more than expected).

Fields of papers citing papers by John L. Harper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John L. Harper. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John L. Harper. The network helps show where John L. Harper may publish in the future.

Co-authors

The 25 scholars most cited alongside John L. Harper, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John L. Harper Line = papers co-authored together John L. Harper links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	BIOLOGICAL FLORA OF THE BRITISH ISLES Huang Xiuqion, John L. Harper, W.A. Wood	2016	0
2	Ecology: from individuals to ecosystems. 4th edition Michael Begon, Colin R. Townsend, John L. Harper	2006	233
3	Biodiversity: measurement and estimation. Preface Philosophical Transactions of the Royal Society B Biological Sciences ·John L. Harper, David L. Hawksworth	1994	301
4	The dynamics of Trifolium repens in a permanent pasture I. The population dynamics of leaves and nodes per shoot axis Proceedings of the Royal Society of London. Series B, Biological sciences ·Soledad Diaz, John L. Harper	1989	41
5	The value of a leaf Oecologia ·John L. Harper	1989	184
6	The growth and asymmetry of neighbouring plants of white clover (Trifolium repens L.) Oecologia ·神部宏幸, John L. Harper	1989	27
7	The effect of grasses on the quality of transmitted radiation and its influence on the growth of white clover Trifolium repens Oecologia ·Lindsey J. Thompson, John L. Harper	1988	111
8	The influence of neighbours on the growth of trees II. The fate of buds on long and short shoots in Betula pendula Proceedings of the Royal Society of London. Series B, Biological sciences ·Lucia Park, John L. Harper	1987	59
9	The effects of severe mineral nutrient deficiencies on the demography of leaves Proceedings of the Royal Society of London. Series B, Biological sciences ·John L. Harper, Е В Шишпарёнок	1987	9
10	The influence of neighbours on the growth of trees. I. The demography of buds in Betula pendula Proceedings of the Royal Society of London. Series B, Biological sciences ·Michael E. Jones, John L. Harper	1987	65
11	Life-history concepts and the population biology of clonal organisms Proceedings of the Royal Society of London. Series B, Biological sciences ·N. Ruaraidh Sackville Hamilton, Bernhard Schmid, John L. Harper	1987	131
12	Control of fecundity through abortion in Epilobium montanum L. Oecologia ·John L. Harper, Hilary Wallace	1987	31
13	Preface Proceedings of the Royal Society of London. Series B, Biological sciences ·John L. Harper	1986	3
14	The growth and form of modular organisms : proceedings of a Royal Society Discussion Meeting held on 27 and 28 June 1985 John L. Harper, Brian Rosen, James White	1986	1
15	Growth and mortality of individual plants as a function of ?available area? Oecologia ·Richard Mithen, John L. Harper, Jacob Weiner	1984	129
16	1982 international symposium on concrete roads, London John L. Harper	1983	0
17	THE RESOURCE COSTS OF GENDER AND MATERNAL SUPPORT IN AN ANDROMONOECIOUS UMBELLIFER, SMYRNIUM OLUSATRUM L. New Phytologist ·Jon Lovett Doust, John L. Harper	1980	80
18	The Growth, Distribution and Neighbour Relationships of Trifolium Repens in a Permanent Pasture: II. Inter- and Intra-Specific Contact Journal of Ecology ·Roy Turkington, John L. Harper	1979	73
19	Studies in the Dynamics of Plant Populations: V. Mechanisms Governing the Sex Ratio in Rumex Acetosa and R. Acetosella Journal of Ecology ·P. D. Putwain, John L. Harper	1972	204
20	The Behaviour of Seeds in Soil: II. The Germination of Seeds on the Surface of a Water Supplying Substrate Journal of Ecology ·John L. Harper, Optis Tl	1966	140

About John L. Harper

John L. Harper is a scholar working on Nature and Landscape Conservation, Ecology, Evolution, Behavior and Systematics, Plant Science, Agronomy and Crop Science and Forestry, having authored 154 papers that have together received 35.5k indexed citations. Recurring topics across this work include Ecology and Vegetation Dynamics Studies (40 papers), Plant and animal studies (28 papers), Botany and Plant Ecology Studies (26 papers), Plant Parasitism and Resistance (15 papers), Botany, Ecology, and Taxonomy Studies (12 papers), Botanical Research and Chemistry (8 papers), Cassava research and cyanide (6 papers) and Rangeland and Wildlife Management (6 papers). The work is most often cited by research in Nature and Landscape Conservation (17.9k citations), Ecology, Evolution, Behavior and Systematics (14.2k citations), Ecology (10.8k citations), Plant Science (14.8k citations) and Forestry (1.4k citations). John L. Harper has collaborated with scholars based in United Kingdom, Canada and United States. Frequent co-authors include B. R. Trenbath, David Tilman, Michael Begon, Colin R. Townsend, Steward T. A. Pickett, Walter P. Carson, James F. White, G. R. Sagar, P. H. LOVELL and K. G. Moore. Their work appears in journals such as Journal of Ecology, New Phytologist, Oecologia, Nature and Journal of Applied Ecology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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