K. A. Longman

1.5k total citations · 1 hit paper
40 papers, 1.1k citations indexed

About

K. A. Longman is a scholar working on Plant Science, Nature and Landscape Conservation and Molecular Biology. According to data from OpenAlex, K. A. Longman has authored 40 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Plant Science, 12 papers in Nature and Landscape Conservation and 11 papers in Molecular Biology. Recurrent topics in K. A. Longman's work include Forest ecology and management (9 papers), Plant Physiology and Cultivation Studies (8 papers) and Plant Reproductive Biology (6 papers). K. A. Longman is often cited by papers focused on Forest ecology and management (9 papers), Plant Physiology and Cultivation Studies (8 papers) and Plant Reproductive Biology (6 papers). K. A. Longman collaborates with scholars based in United Kingdom, United States and Canada. K. A. Longman's co-authors include Ján Jeník, Melvin T. Tyree, C. L. Brown, Martin H. Zimmermann, Roger R.B. Leakey, P. F. Wareing, R. R. B. Leakey, J. D. Ovington, J. Dick and P. B. Tomlinson and has published in prestigious journals such as Nature, Journal of Ecology and Journal of Applied Ecology.

In The Last Decade

K. A. Longman

36 papers receiving 918 citations

Hit Papers

Trees: Structure and Function. 1972 2026 1990 2008 1972 100 200 300 400
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Trees: Structure and Function.
    1972 439 citations K. A. Longman, Martin H. Zimmermann et al. Journal of Ecology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
K. A. Longman United Kingdom 15 551 407 292 254 244 40 1.1k
Philip B. Tomlinson United States 3 515 0.9× 472 1.2× 267 0.9× 185 0.7× 422 1.7× 4 1.1k
M. I. H. Brooker Australia 14 437 0.8× 441 1.1× 167 0.6× 259 1.0× 492 2.0× 48 1.2k
Claud L. Brown United States 16 732 1.3× 239 0.6× 331 1.1× 328 1.3× 150 0.6× 41 1.1k
Gary A. Ritchie United States 21 704 1.3× 700 1.7× 321 1.1× 145 0.6× 61 0.3× 36 1.1k
Anneli Viherä‐Aarnio Finland 16 550 1.0× 390 1.0× 334 1.1× 218 0.9× 91 0.4× 40 1.1k
M. P. Denne United Kingdom 16 350 0.6× 333 0.8× 360 1.2× 113 0.4× 105 0.4× 36 857
A. Burkart Argentina 9 484 0.9× 188 0.5× 76 0.3× 130 0.5× 395 1.6× 15 993
Francine Tremblay Canada 22 491 0.9× 508 1.2× 440 1.5× 338 1.3× 192 0.8× 67 1.3k
Peter A. Jolliffe Canada 22 1.2k 2.1× 593 1.5× 435 1.5× 149 0.6× 337 1.4× 58 1.8k
E. A. Pinkard Australia 20 427 0.8× 625 1.5× 441 1.5× 89 0.4× 100 0.4× 34 1.1k

Countries citing papers authored by K. A. Longman

Since Specialization
Citations

This map shows the geographic impact of K. A. Longman'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 K. A. Longman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. A. Longman more than expected).

Fields of papers citing papers by K. A. Longman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. A. Longman. 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 K. A. Longman. The network helps show where K. A. Longman may publish in the future.

Co-authorship network of co-authors of K. A. Longman

This figure shows the co-authorship network connecting the top 25 collaborators of K. A. Longman. A scholar is included among the top collaborators of K. A. Longman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with K. A. Longman. K. A. Longman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Longman, K. A., et al.. (1998). Growing Good Tropical Trees for Planting. 1 indexed citations
2.
Longman, K. A., et al.. (1993). Tropical trees: propagation and planting manuals. Volume 1. Rooting cuttings of tropical trees.. 14 indexed citations
3.
Mori, Scott A., K. A. Longman, & Ján Jeník. (1989). Tropical Forest and Its Environment. Second Edition.. Brittonia. 41(3). 328–328. 2 indexed citations
4.
Leakey, R. R. B. & K. A. Longman. (1986). Physiological, environmental and genetic variation in apical dominance as determined by decapitation in Triplochiton scleroxylon. Tree Physiology. 1(2). 193–207. 31 indexed citations
5.
Longman, K. A., J. Dick, M. A. Mugglestone, & R.I. Smith. (1986). Effects of gibberellin A4 + 7 and bark-ringing on cone initiation in mature Picea sitchensis grafts. Tree Physiology. 1(1). 101–113. 18 indexed citations
6.
Longman, K. A.. (1985). Effects of growth substances on male and female cone initiation in conifers. Biologia Plantarum. 27(4-5). 402–407. 4 indexed citations
7.
Longman, K. A.. (1984). Physiological studies in birch. Proceedings of the Royal Society of Edinburgh Section B Biological Sciences. 85(1-2). 97–113. 6 indexed citations
8.
Ladipo, D. O., et al.. (1983). A study of variation in Triplochiton scleroxylon K. Schum. Some criteria for clonal selection. Proceedings of the IUFRO symposium and workshop on genetic improvement and productivity of fast-growing tree species, Sao Pedro, Brazil. 1980. 30. 333–336. 1 indexed citations
9.
Leakey, Roger R.B. & K. A. Longman. (1982). DOMESTICATION OF TROPICAL TREES: AN APPROACH SECURING FUTURE PRODUCTIVITY AND DIVERSITY IN MANAGED ECOSYSTEMS. Commonwealth forestry review. 61(1). 33–42. 24 indexed citations
10.
Leakey, Roger R.B., et al.. (1982). Physiological studies for tropical tree improvement and conservation. Factors affecting root initiation in cuttings of Triplochiton scleroxylon K. Schum.. Forest Ecology and Management. 4(1). 53–66. 76 indexed citations
11.
Leakey, Roger R.B., et al.. (1981). PRECOCIOUS FLOWERINGand REPRODUCTIVE BIOLOGY of TRIPLOCHITONSCLEROXYLONK. Schum. Commonwealth forestry review. 60(2). 117–126. 1 indexed citations
12.
Longman, K. A.. (1981). Possibilities of controlled reproduction in trees. NERC Open Research Archive (Natural Environment Research Council). 1 indexed citations
13.
Longman, K. A., Roger R.B. Leakey, & M. P. Denne. (1979). Genetic and Environmental Effects on Shoot Growth and Xylem Formation in a Tropical Tree. Annals of Botany. 44(3). 377–380. 7 indexed citations
14.
Longman, K. A.. (1976). SOME EXPERIMENTAL APPROACHES TO THE PROBLEM OF PHASE CHANGE IN FOREST TREES. Acta Horticulturae. 81–90. 14 indexed citations
15.
Longman, K. A.. (1976). Conservation and utilization of gene resources by vegetative multiplication of tropical trees. 5 indexed citations
16.
Longman, K. A., Martin H. Zimmermann, C. L. Brown, & Melvin T. Tyree. (1972). Trees: Structure and Function.. Journal of Ecology. 60(3). 942–942. 439 indexed citations breakdown →
17.
Longman, K. A.. (1970). Initiation of Flowering on First Year Cuttings of Metasequoia glyptostroboides Hu and Cheng. Nature. 227(5255). 299–300. 6 indexed citations
18.
Longman, K. A.. (1968). Effects of Orientation and Root Position on Apical Dominance in a Tropical Woody Plant. Annals of Botany. 32(3). 553–566. 8 indexed citations
19.
Longman, K. A. & P. F. Wareing. (1959). Early Induction of Flowering in Birch Seedlings. Nature. 184(4704). 2037–2038. 31 indexed citations
20.
Wareing, P. F. & K. A. Longman. (1959). Studies on the physiology of flowering in forest trees.. 3 indexed citations

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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