E. Eugene Spears

978 total citations · 1 hit paper
8 papers, 825 citations indexed

About

E. Eugene Spears is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Nature and Landscape Conservation. According to data from OpenAlex, E. Eugene Spears has authored 8 papers receiving a total of 825 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Ecology, Evolution, Behavior and Systematics, 5 papers in Plant Science and 4 papers in Nature and Landscape Conservation. Recurrent topics in E. Eugene Spears's work include Plant and animal studies (7 papers), Ecology and Vegetation Dynamics Studies (4 papers) and Seed and Plant Biochemistry (2 papers). E. Eugene Spears is often cited by papers focused on Plant and animal studies (7 papers), Ecology and Vegetation Dynamics Studies (4 papers) and Seed and Plant Biochemistry (2 papers). E. Eugene Spears collaborates with scholars based in United States. E. Eugene Spears's co-authors include Peter Feinsinger, Robert W. Poole and Peter G. May and has published in prestigious journals such as Ecology, Journal of Ecology and Oecologia.

In The Last Decade

E. Eugene Spears

7 papers receiving 699 citations

Hit Papers

align trajectories

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.

A Simple Measure of Niche Breadth

1981 526 citations Peter Feinsinger, E. Eugene Spears et al. Ecology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
E. Eugene Spears United States	6	458	376	339	273	107	8	825
Peter E. Scott United States	16	497 1.1×	289 0.8×	293 0.9×	285 1.0×	141 1.3×	40	826
Ole Hamann Denmark	11	250 0.5×	223 0.6×	245 0.7×	143 0.5×	63 0.6×	19	572
S. J. Cork Australia	14	204 0.4×	158 0.4×	434 1.3×	173 0.6×	96 0.9×	17	808
Donald R. Perry United States	8	880 1.9×	436 1.2×	155 0.5×	406 1.5×	81 0.8×	11	1.1k
Paul Isenmann France	13	346 0.8×	399 1.1×	487 1.4×	151 0.6×	92 0.9×	33	769
Barbara K. Snow United Kingdom	16	857 1.9×	560 1.5×	763 2.3×	270 1.0×	78 0.7×	30	1.3k
S. J. Moreby United Kingdom	17	298 0.7×	308 0.8×	455 1.3×	242 0.9×	73 0.7×	30	869
Pascual J. Soriano Venezuela	16	553 1.2×	238 0.6×	281 0.8×	197 0.7×	47 0.4×	40	810
Sophie Petit Australia	20	544 1.2×	189 0.5×	397 1.2×	212 0.8×	112 1.0×	73	921
Conrad A. Istock United States	16	326 0.7×	162 0.4×	370 1.1×	198 0.7×	106 1.0×	40	890

Countries citing papers authored by E. Eugene Spears

Since Specialization

Citations

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

Fields of papers citing papers by E. Eugene Spears

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E. Eugene Spears. 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 E. Eugene Spears. The network helps show where E. Eugene Spears may publish in the future.

Co-authorship network of co-authors of E. Eugene Spears

This figure shows the co-authorship network connecting the top 25 collaborators of E. Eugene Spears. A scholar is included among the top collaborators of E. Eugene Spears 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 E. Eugene Spears. E. Eugene Spears is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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8 of 8 papers shown

1.

May, Peter G. & E. Eugene Spears. (1988). ANDROMONOECY AND VARIATION IN PHENOTYPIC GENDER OF PASSIFLORA INCARNATA (PASSIFLORACEAE). American Journal of Botany. 75(12). 1830–1841. 44 indexed citations

2.

Spears, E. Eugene & Peter G. May. (1988). EFFECT OF DEFOLIATION ON GENDER EXPRESSION AND FRUIT SET IN PASSIFLORA INCARNATA. American Journal of Botany. 75(12). 1842–1847. 22 indexed citations

3.

Spears, E. Eugene & Peter G. May. (1988). Effect of Defoliation on Gender Expression and Fruit Set in Passiflora incarnata. American Journal of Botany. 75(12). 1842–1842. 4 indexed citations

4.

May, Peter G. & E. Eugene Spears. (1988). Andromonoecy and Variation in Phenotypic Gender of Passiflora Incarnata (Passifloraceae). American Journal of Botany. 75(12). 1830–1830. 6 indexed citations

5.

Spears, E. Eugene. (1987). Island and Mainland Pollination Ecology of Centrosema Virginianum and Opuntia Stricta. Journal of Ecology. 75(2). 351–351. 92 indexed citations

6.

Spears, E. Eugene. (1983). A direct measure of pollinator effectiveness. Oecologia. 57(1-2). 196–199. 130 indexed citations

7.

Spears, E. Eugene. (1983). A comparison of island and mainland pollination ecology / by Edwin Eugene Spears, Jr.. Biodiversity Heritage Library (Smithsonian Institution). 1 indexed citations

8.

Feinsinger, Peter, E. Eugene Spears, & Robert W. Poole. (1981). A Simple Measure of Niche Breadth. Ecology. 62(1). 27–32. 526 indexed citations breakdown →

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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