Alan Graham

5.3k total citations
101 papers, 4.1k citations indexed

About

Alan Graham is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, Alan Graham has authored 101 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Ecology, Evolution, Behavior and Systematics, 35 papers in Plant Science and 18 papers in Molecular Biology. Recurrent topics in Alan Graham's work include Plant Diversity and Evolution (58 papers), Plant and animal studies (23 papers) and Botany and Geology in Latin America and Caribbean (20 papers). Alan Graham is often cited by papers focused on Plant Diversity and Evolution (58 papers), Plant and animal studies (23 papers) and Botany and Geology in Latin America and Caribbean (20 papers). Alan Graham collaborates with scholars based in United States, South Korea and United Kingdom. Alan Graham's co-authors include Robyn J. Burnham, Shirley A. Graham, David M. Jarzen, Matsuo Tsukada, Sang‐Tae Lee, Joan W. Nowicke, Kathryn M. Gregory‐Wodzicki, John J. Skvarla, Charles Heimsch and David L. Dilcher and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and Ecology.

In The Last Decade

Alan Graham

101 papers receiving 3.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Alan Graham United States 34 2.6k 1.1k 996 872 714 101 4.1k
Bruce H. Tiffney United States 32 3.2k 1.2× 1.3k 1.2× 1.5k 1.5× 895 1.0× 821 1.1× 65 4.4k
Daniel I. Axelrod United States 36 3.3k 1.2× 1.9k 1.7× 1.3k 1.3× 1.4k 1.6× 821 1.1× 91 5.4k
Jack A. Wolfe United States 35 3.5k 1.3× 1.3k 1.2× 1.4k 1.4× 885 1.0× 1.7k 2.3× 62 6.0k
Robert S. Hill Australia 43 3.4k 1.3× 1.3k 1.2× 1.4k 1.4× 1.8k 2.0× 1.1k 1.5× 169 5.6k
Pierre Quézel France 32 1.8k 0.7× 2.6k 2.4× 393 0.4× 1.1k 1.3× 274 0.4× 122 4.6k
David J. Cantrill Australia 40 2.9k 1.1× 596 0.5× 1.2k 1.2× 642 0.7× 1.7k 2.4× 132 4.7k
Robyn J. Burnham United States 23 1.8k 0.7× 469 0.4× 519 0.5× 930 1.1× 591 0.8× 45 2.7k
C. A. Stace United Kingdom 28 2.0k 0.8× 2.4k 2.2× 717 0.7× 832 1.0× 191 0.3× 92 4.0k
Cajsa Lisa Anderson Sweden 14 1.6k 0.6× 491 0.4× 790 0.8× 1.1k 1.3× 1.1k 1.5× 21 3.6k
Aljos Farjon United Kingdom 23 1.4k 0.5× 919 0.8× 740 0.7× 644 0.7× 177 0.2× 55 2.5k

Countries citing papers authored by Alan Graham

Since Specialization
Citations

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

Fields of papers citing papers by Alan Graham

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alan Graham. 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 Alan Graham. The network helps show where Alan Graham may publish in the future.

Co-authorship network of co-authors of Alan Graham

This figure shows the co-authorship network connecting the top 25 collaborators of Alan Graham. A scholar is included among the top collaborators of Alan Graham 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 Alan Graham. Alan Graham 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.
Graham, Alan. (2018). The role of land bridges, ancient environments, and migrations in the assembly of the North American flora. Journal of Systematics and Evolution. 56(5). 405–429. 77 indexed citations
2.
Graham, Alan. (2012). Catalog and Literature Guide for Cretaceous and Cenozoic Vascular Plants of the New World1. Annals of the Missouri Botanical Garden. 98(4). 539–541. 5 indexed citations
3.
Graham, Alan. (2011). The age and diversification of terrestrial New World ecosystems through Cretaceous and Cenozoic time. American Journal of Botany. 98(3). 336–351. 141 indexed citations
4.
Graham, Alan. (2009). The Concepts of Deep-Time Floras and Paleobotanical Hot-Spots. Systematic Botany. 28(2). 461–464. 1 indexed citations
5.
Graham, Alan. (2009). Geohistory Models and Cenozoic Paleoenvironments of the Caribbean Region. Systematic Botany. 28(2). 378–386. 86 indexed citations
6.
Graham, Alan, et al.. (2000). Studies in Neotropical paleobotany. XIV. A palynoflora from the Middle Eocene Saramaguacán Formation of Cuba. American Journal of Botany. 87(10). 1526–1539. 37 indexed citations
7.
Graham, Alan. (1996). Paleophysiographic and paleoenvironmental histories in northern Latin America - Possible impact on modes of speciation. Journal of Palaeosciences. 45. 143–147. 2 indexed citations
8.
Bullock, Stephen H., Harold A. Mooney, Peter G. Murphy, et al.. (1995). Seasonally Dry Tropical Forests. Cambridge University Press eBooks. 230 indexed citations
9.
Graham, Alan. (1995). Diversification of Gulf/Caribbean Mangrove Communities Through Cenozoic Time. Biotropica. 27(1). 20–20. 65 indexed citations
10.
Graham, Alan. (1994). Neotropical Eocene Coastal Floras and 18 O/ 16 O-Estimated Warmer Vs. Cooler Equatorial Waters. American Journal of Botany. 81(3). 301–301. 8 indexed citations
11.
Graham, Alan. (1992). Utilization of the isthmian land bridge during the Cenozoic—paleobotanical evidence for timing, and the selective influence of altitudes and climate. Review of Palaeobotany and Palynology. 72(1-2). 119–128. 32 indexed citations
12.
Graham, Alan. (1986). Literature on vegetational history in Latin America. Supplement III. Review of Palaeobotany and Palynology. 48(1-3). 199–239. 4 indexed citations
13.
Skvarla, John J., et al.. (1985). The Nature of Threadlike Structures and Other Morphological Characters in Jacqueshuberia Pollen (Leguminosae: Caesalpinioideae). American Journal of Botany. 72(3). 407–407. 10 indexed citations
14.
Graham, Alan. (1973). Vegetation and vegetational history of northern Latin America : Papers presented as part of a symposium at the American Institute of Biological Sciences meetings, Bloomington, Ind. (USA), 1970. Elsevier eBooks. 3 indexed citations
15.
Graham, Alan. (1972). Floristics and paleofloristics of Asia and Eastern North America : Proceedings of symposia for the systematics section, 11th International Botanical Congress, Seattle, Wash. (U.S.A.), 1969, and the Japan-United States Cooperative Science Program, Corvallis, Oreg. (U.S.A.), 1969. Elsevier eBooks. 3 indexed citations
16.
Graham, Alan. (1971). The role of myxomyceta spores in palynology (with a brief note on the morphology of certain algal zygospores). Review of Palaeobotany and Palynology. 11(2). 89–99. 19 indexed citations
17.
Graham, Alan. (1962). Ficus ceratops2Knowlton and its affinities with the living genus Guarea. Journal of Paleontology. 36(3). 521–523. 4 indexed citations
18.
Kesling, R. V. & Alan Graham. (1962). ISCHADITES IS A DASYCLADACEAN ALGA. Journal of Paleontology. 36(5). 943–952. 10 indexed citations
19.
Graham, Alan. (1962). The role of fungal spores in palynology. Journal of Paleontology. 36(1). 60–68. 37 indexed citations
20.
Graham, Alan & Charles Heimsch. (1960). Pollen Studies of Some Texas Peat Deposits. Ecology. 41(4). 751–763. 27 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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