Paul W. Shaffer

1.3k total citations
21 papers, 938 citations indexed

About

Paul W. Shaffer is a scholar working on Environmental Chemistry, Ecology and Biochemistry. According to data from OpenAlex, Paul W. Shaffer has authored 21 papers receiving a total of 938 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Environmental Chemistry, 7 papers in Ecology and 5 papers in Biochemistry. Recurrent topics in Paul W. Shaffer's work include Soil and Water Nutrient Dynamics (8 papers), Amino Acid Enzymes and Metabolism (5 papers) and Microbial Community Ecology and Physiology (3 papers). Paul W. Shaffer is often cited by papers focused on Soil and Water Nutrient Dynamics (8 papers), Amino Acid Enzymes and Metabolism (5 papers) and Microbial Community Ecology and Physiology (3 papers). Paul W. Shaffer collaborates with scholars based in United States, Ghana and India. Paul W. Shaffer's co-authors include C. Peter Wölk, Sam M. Austin, John C. Meeks, J.B. Thomas, Mary E. Kentula, A. Galonsky, W.S. Chien, Stephanie E. Gwin, Wolfgang Lockau and Norbert Schilling and has published in prestigious journals such as Journal of Biological Chemistry, PLANT PHYSIOLOGY and Biochemical and Biophysical Research Communications.

In The Last Decade

Paul W. Shaffer

21 papers receiving 869 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Paul W. Shaffer United States 14 394 349 287 213 150 21 938
Harold G. Weger Canada 23 465 1.2× 203 0.6× 336 1.2× 340 1.6× 259 1.7× 51 1.4k
P. G. Falkowski United States 8 516 1.3× 222 0.6× 336 1.2× 272 1.3× 171 1.1× 14 1.1k
Bruno P. Kremer Germany 22 300 0.8× 363 1.0× 418 1.5× 169 0.8× 103 0.7× 102 1.4k
W. Thomas Shoaf United States 5 290 0.7× 132 0.4× 91 0.3× 59 0.3× 157 1.0× 10 756
L. R. Blinks United States 10 242 0.6× 162 0.5× 356 1.2× 114 0.5× 140 0.9× 16 1.0k
Barbara Javor United States 13 369 0.9× 440 1.3× 68 0.2× 30 0.1× 220 1.5× 17 878
D. H. Turpin Canada 21 505 1.3× 415 1.2× 295 1.0× 597 2.8× 227 1.5× 31 1.7k
Kaori Ohki Japan 23 668 1.7× 593 1.7× 445 1.6× 172 0.8× 174 1.2× 62 1.5k
Stephen J. Zipko 4 214 0.5× 189 0.5× 221 0.8× 60 0.3× 168 1.1× 20 702
Ivor R. Elrifi Canada 12 190 0.5× 125 0.4× 245 0.9× 123 0.6× 217 1.4× 14 661

Countries citing papers authored by Paul W. Shaffer

Since Specialization
Citations

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

Fields of papers citing papers by Paul W. Shaffer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Paul W. Shaffer. 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 Paul W. Shaffer. The network helps show where Paul W. Shaffer may publish in the future.

Co-authorship network of co-authors of Paul W. Shaffer

This figure shows the co-authorship network connecting the top 25 collaborators of Paul W. Shaffer. A scholar is included among the top collaborators of Paul W. Shaffer 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 Paul W. Shaffer. Paul W. Shaffer 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.
Cole, Charles Andrew, Robert P. Brooks, Paul W. Shaffer, & Mary E. Kentula. (2002). Comparison of Hydrology of Wetlands in Pennsylvania and Oregon (USA) as an Indicator of Transferability of Hydrogeomorphic (HGM) Functional Models Between Regions. Environmental Management. 30(2). 265–278. 18 indexed citations
2.
Shaffer, Paul W., Charles Andrew Cole, Mary E. Kentula, & Robert P. Brooks. (2000). Effects of measurement frequency on water-level summary statistics. Wetlands. 20(1). 148–161. 20 indexed citations
3.
Shaffer, Paul W., et al.. (1999). Distribution of soil organic matter in freshwater emergent/open water wetlands in the Portland, Oregon metropolitan area. Wetlands. 19(3). 505–516. 64 indexed citations
4.
Gwin, Stephanie E., Mary E. Kentula, & Paul W. Shaffer. (1999). Evaluating the effects of wetland regulation through hydrogeomorphic classification and landscape profiles. Wetlands. 19(3). 477–489. 56 indexed citations
5.
Holdren, George R., et al.. (1993). Sensitivity of Critical Load Estimates for Surface Waters to Model Selection and Regionalization Schemes. Journal of Environmental Quality. 22(2). 279–289. 12 indexed citations
6.
Shaffer, Paul W. & Donald L. Stevens. (1991). Evaluation of Procedures for Aggregating Nonlinear Sulfate Adsorption Isotherm Data. Soil Science Society of America Journal. 55(3). 684–692. 2 indexed citations
7.
Liegel, Leon H., et al.. (1991). Regional characteristics of land use in Northeast and Southern Blue Ridge Province: Associations with acid rain effects on surface-water chemistry. Environmental Management. 15(2). 269–279. 7 indexed citations
8.
Shaffer, Paul W., Richard Hooper, Keith N. Eshleman, & M. Robbins Church. (1989). Reply. Water Air & Soil Pollution. 47(1-2). 179–182. 1 indexed citations
9.
Shaffer, Paul W. & M. Robbins Church. (1989). Terrestrial and In-Lake Contributions to Alkalinity Budgets of Drainage Lakes: An Assessment of Regional Differences. Canadian Journal of Fisheries and Aquatic Sciences. 46(3). 509–515. 6 indexed citations
10.
Shaffer, Paul W., Richard Hooper, Keith N. Eshleman, & M. Robbins Church. (1988). Watershed vs in-lake alkalinity generation: A comparison of rates using input-output studies. Water Air & Soil Pollution. 39(3-4). 263–273. 13 indexed citations
11.
Wölk, C. Peter, et al.. (1978). Initial Organic Products of Assimilation of [13N]Ammonium and [13N]Nitrate by Tobacco Cells Cultured on Different Sources of Nitrogen. PLANT PHYSIOLOGY. 62(2). 299–304. 50 indexed citations
12.
Meeks, John C., et al.. (1978). Initial Organic Products of Fixation of [13N]Dinitrogen by Root Nodules of Soybean (Glycine max). PLANT PHYSIOLOGY. 61(6). 980–983. 44 indexed citations
13.
Meeks, John C., C. Peter Wölk, Wolfgang Lockau, et al.. (1978). Pathways of assimilation of [13N]N2 and 13NH4+ by cyanobacteria with and without heterocysts. Journal of Bacteriology. 134(1). 125–130. 110 indexed citations
14.
Shaffer, Paul W., Wolfgang Lockau, & C. Peter Wölk. (1978). Isolation of mutants of the cyanobacterium,Anabaena variabilis, impaired in photoautotrophy. Archives of Microbiology. 117(3). 215–219. 12 indexed citations
15.
Meeks, John C., C. Peter Wölk, J.B. Thomas, et al.. (1977). The pathways of assimilation of 13NH4+ by the cyanobacterium, Anabaena cylindrica.. Journal of Biological Chemistry. 252(21). 7894–7900. 73 indexed citations
16.
Thomas, J. H., John C. Meeks, C. Peter Wölk, et al.. (1977). Formation of glutamine from (/sup 13/N)ammonia, (/sup 13/N)dinitrogen, and (/sup 14/C)glutamate by heterocysts isolated from Anabaena cylindrica. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 11 indexed citations
17.
Thomas, J.B., John C. Meeks, C. Peter Wölk, Paul W. Shaffer, & Sam M. Austin. (1977). Formation of glutamine from [13n]ammonia, [13n]dinitrogen, and [14C]glutamate by heterocysts isolated from Anabaena cylindrica. Journal of Bacteriology. 129(3). 1545–1555. 147 indexed citations
18.
Wölk, C. Peter, J.B. Thomas, Paul W. Shaffer, Sam M. Austin, & A. Galonsky. (1976). Pathway of nitrogen metabolism after fixation of 13N-labeled nitrogen gas by the cyanobacterium, Anabaena cylindrica.. Journal of Biological Chemistry. 251(16). 5027–5034. 140 indexed citations
19.
Wölk, C. Peter & Paul W. Shaffer. (1976). Heterotrophic micro- and macrocultures of a nitrogen-fixing cyanobacterium. Archives of Microbiology. 110(2-3). 145–147. 59 indexed citations
20.
Thomas, Joseph, C. Peter Wölk, Paul W. Shaffer, Sam M. Austin, & A. Galonsky. (1975). The initial organic products of fixation of 13N-labeled nitrogen gas by the blue-green alga Anabaena cylindrica. Biochemical and Biophysical Research Communications. 67(2). 501–507. 35 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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