Clifford E. Ahlgren

727 total citations
27 papers, 546 citations indexed

About

Clifford E. Ahlgren is a scholar working on Plant Science, Nature and Landscape Conservation and Ecology. According to data from OpenAlex, Clifford E. Ahlgren has authored 27 papers receiving a total of 546 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Plant Science, 8 papers in Nature and Landscape Conservation and 8 papers in Ecology. Recurrent topics in Clifford E. Ahlgren's work include Fire effects on ecosystems (7 papers), Ecology and Vegetation Dynamics Studies (5 papers) and Rangeland and Wildlife Management (5 papers). Clifford E. Ahlgren is often cited by papers focused on Fire effects on ecosystems (7 papers), Ecology and Vegetation Dynamics Studies (5 papers) and Rangeland and Wildlife Management (5 papers). Clifford E. Ahlgren collaborates with scholars based in United States and India. Clifford E. Ahlgren's co-authors include Laurits W. Krefting and Robert E. Merrill and has published in prestigious journals such as Ecology, Canadian Journal of Forest Research and Forest Science.

In The Last Decade

Clifford E. Ahlgren

23 papers receiving 392 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Clifford E. Ahlgren United States	9	332	294	253	142	68	27	546
Gilbert H. Schubert United States	10	255 0.8×	273 0.9×	191 0.8×	80 0.6×	48 0.7×	33	466
Bernard L. Kovalchik United Kingdom	5	182 0.5×	193 0.7×	231 0.9×	108 0.8×	51 0.8×	7	438
Leon F. Neuenschwander United States	14	444 1.3×	334 1.1×	355 1.4×	134 0.9×	63 0.9×	27	635
G. C. Stocker Australia	10	182 0.5×	266 0.9×	213 0.8×	94 0.7×	85 1.3×	14	481
S. Eis United Kingdom	10	195 0.6×	299 1.0×	117 0.5×	119 0.8×	83 1.2×	21	454
E. W. Tisdale United States	14	288 0.9×	410 1.4×	508 2.0×	228 1.6×	97 1.4×	32	740
Catherine Keever	8	185 0.6×	284 1.0×	204 0.8×	255 1.8×	161 2.4×	9	538
Ted L. Hanes	5	328 1.0×	344 1.2×	229 0.9×	169 1.2×	67 1.0×	5	505
David A. Marquis United States	14	276 0.8×	500 1.7×	248 1.0×	159 1.1×	84 1.2×	43	663
R. P. Cummins United Kingdom	14	162 0.5×	354 1.2×	223 0.9×	192 1.4×	123 1.8×	22	526

Countries citing papers authored by Clifford E. Ahlgren

Since Specialization

Citations

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

Fields of papers citing papers by Clifford E. Ahlgren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Clifford E. Ahlgren

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

All Works

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20 of 20 papers shown

Ahlgren, Clifford E., et al.. (1989). Checklist of vascular flora on the Quetico-Superior area. 1 indexed citations

Ahlgren, Clifford E.. (1984). Lob Trees in the Wilderness. 5 indexed citations

Ahlgren, Clifford E.. (1981). Seventeen-Year Changes in Climatic Elements Following Prescribed Burning. Forest Science. 27(1). 33–39. 8 indexed citations

Ahlgren, Clifford E.. (1979). Emergent Seedlings on Soil from Burned and Unburned Red Pine Forest. University of Minnesota Digital Conservancy (University of Minnesota). 1–4. 4 indexed citations

Ahlgren, Clifford E.. (1979). Buried seed in the forest floor of the Boundary Waters Canoe Area. University of Minnesota Digital Conservancy (University of Minnesota). 1–3. 5 indexed citations

Ahlgren, Clifford E., et al.. (1978). Viability and Fertility of Vacuum Dried Pollen of 5-Needle Pine Species. Forest Science. 24(1). 100–102. 1 indexed citations

Ahlgren, Clifford E.. (1976). Regeneration of Red Pine and White Pine Following Wildfire and Logging in Northeastern Minnesota. Journal of Forestry. 74(3). 135–140. 47 indexed citations

Krefting, Laurits W. & Clifford E. Ahlgren. (1974). Small Mammals and Vegetation Changes After Fire in a Mixed Conifer‐Hardwood Forest. Ecology. 55(6). 1391–1398. 64 indexed citations

Ahlgren, Clifford E.. (1972). Some effects of interspecific and intraspecific grafting on growth and flowering of some 5 needle pines. Silvae genetica. 21. 122–126. 4 indexed citations

10.

Ahlgren, Clifford E.. (1969). Eighteen Years of Weather in the Boundary Waters Canoe Area; Quetico-Superior Wilderness Research Center. University of Minnesota Digital Conservancy (University of Minnesota). 4 indexed citations

11.

Ahlgren, Clifford E.. (1968). Breeding for resistance to white pine blister rust.

12.

Ahlgren, Clifford E.. (1966). Small Mammals and Reforestation Following Prescribed Burning. Journal of Forestry. 64(9). 614–618. 63 indexed citations

13.

Ahlgren, Clifford E., et al.. (1965). Effects of Prescribed Burning on Soil Microorganisms in a Minnesota Jack Pine Forest. Ecology. 46(3). 304–310. 88 indexed citations

14.

Ahlgren, Clifford E.. (1962). Some Factors Influencing Survival, Growth, and Flowering of Intraspecific and Interspecific Pine Grafts. Journal of Forestry. 60(11). 785–789. 1 indexed citations

15.

Ahlgren, Clifford E.. (1961). Progress with direct bark inoculation for White Pine blister rust.. Journal of Forestry. 59(3). 208–209. 1 indexed citations

16.

Ahlgren, Clifford E.. (1959). Some Effects of Fire on Forest Reproduction in Northeastern Minnesota. Journal of Forestry. 57(3). 194–200. 27 indexed citations

17.

Ahlgren, Clifford E.. (1958). Adventitious Roots and Shoots of Wilding White Pine at the Quetico-Superior Wilderness Research Center. University of Minnesota Digital Conservancy (University of Minnesota). 1 indexed citations

18.

Ahlgren, Clifford E., et al.. (1957). Some Effects of Temporary Flooding on Coniferous Trees. Journal of Forestry. 55(9). 647–650. 22 indexed citations

19.

Ahlgren, Clifford E.. (1957). Phenological Observations of Nineteen Native Tree Species in Northeastern Minnesota. Ecology. 38(4). 622–628. 56 indexed citations

20.

Ahlgren, Clifford E.. (1952). A Wilderness Laboratory in Northern Minnesota. Journal of Forestry. 50(9). 668–670. 1 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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