World's Best Scientists 2026 revealed!
R. Timothy Patterson

R. Timothy Patterson

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 43 5076 4690 244 222 182 5816

R. Timothy Patterson publications per year

The chart shows the history of publications by R. Timothy Patterson between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R. Timothy Patterson published across 41 years, from 1985 to 2025, averaging 5.3 papers a year. Output peaked at 12 publications in 2022. 10 of the 216 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2022. 1985: 3 publications 1986: 2 publications 1987: 3 publications 1988: 4 publications 1989: 6 publications 1990: 6 publications 1991: 4 publications 1992: 1 publication 1993: 8 publications 1994: 4 publications 1995: 3 publications 1996: 3 publications 1997: 6 publications 1998: 8 publications 1999: 3 publications 2000: 9 publications 2001: 2 publications 2002: 4 publications 2003: 1 publication 2004: 6 publications 2005: 6 publications 2006: 1 publication 2007: 7 publications 2008: 2 publications 2009: 4 publications 2010: 2 publications 2011: 2 publications 2012: 8 publications 2013: 7 publications 2014: 7 publications 2015: 6 publications 2016: 6 publications 2017: 9 publications 2018: 10 publications 2019: 9 publications 2020: 7 publications 2021: 9 publications 2022: 12 publications 2023: 6 publications 2024: 5 publications 2025: 5 publications
1985 2025

216 publications in total across all disciplines

View publications per year as a table
R. Timothy Patterson: publications per year, 1985 to 2025
Year Publications
1985 3
1986 2
1987 3
1988 4
1989 6
1990 6
1991 4
1992 1
1993 8
1994 4
1995 3
1996 3
1997 6
1998 8
1999 3
2000 9
2001 2
2002 4
2003 1
2004 6
2005 6
2006 1
2007 7
2008 2
2009 4
2010 2
2011 2
2012 8
2013 7
2014 7
2015 6
2016 6
2017 9
2018 10
2019 9
2020 7
2021 9
2022 12
2023 6
2024 5
2025 5
Total 216
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R. Timothy Patterson publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where R. Timothy Patterson sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 178–187 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 182 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414 182
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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R. Timothy Patterson D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where R. Timothy Patterson sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 43 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 43 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279 43
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Overview

R. Timothy Patterson is affiliated with Carleton University in Canada and conducts research primarily in the fields of Environmental Science and Earth and Planetary Sciences. Their work spans several subfields, including Atmospheric Science, Environmental Chemistry, Ecology, Pollution, and Oceanography.

Their research topics cover diverse areas such as Geology and Paleoclimatology Research, Mine drainage and remediation techniques, Heavy metals in the environment, Aquatic Ecosystems and Phytoplankton Dynamics, Isotope Analysis in Ecology, Protist diversity and phylogeny, and Arsenic contamination and mitigation.

Recent papers authored or co-authored by Patterson include:

  • The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series, 2023, The Anthropocene Review
  • Testate Amoeba Functional Traits and Their Use in Paleoecology, 2020, Frontiers in Ecology and Evolution
  • Use of Arcellinida (testate lobose amoebae) arsenic tolerance limits as a novel tool for biomonitoring arsenic contamination in lakes, 2020, Ecological Indicators
  • Intra-Lake Arcellinida (Testate Lobose Amoebae) Response to Winter De-icing Contamination in an Eastern Canada Road-Side "Salt Belt" Lake, 2020, Microbial Ecology
  • A needle in a haystack: A new metabarcoding approach to survey diversity at the species level of Arcellinida (Amoebozoa: Tubulinea), 2023, Molecular Ecology Resources

Patterson frequently collaborates with a number of co-authors, including Nawaf A. Nasser, Jennifer M. Galloway, Carling R. Walsh, Helen Roe, and Francine M.G. McCarthy.

Their publications are commonly found in journals such as:

  • Research Square (Research Square)
  • The Anthropocene Review
  • PeerJ
  • Environments
  • Journal of Paleolimnology

Patterson's research involves detailed study of environmental processes, particularly those related to biotic responses to environmental contamination and stratigraphic studies pertinent to the Anthropocene epoch. The work on Arcellinida (testate lobose amoebae) reflects a focus on bioindicator species to assess pollution levels such as arsenic contamination and road salt impact in aquatic ecosystems.

The blend of expertise in atmospheric science, chemistry, paleoecology, and ecology allows for interdisciplinary approaches to complex environmental questions. Their publication record indicates consistent contributions to the understanding of both natural and anthropogenic changes within aquatic and sedimentary systems.

Best Publications

  • RE-EXAMINATION OF THE STATISTICAL METHODS USED TO DETERMINE THE NUMBER OF POINT COUNTS NEEDED FOR MICROPALEONTOLOGICAL QUANTITATIVE RESEARCH

    R. Timothy Patterson;Evan Fishbein

  • A review of current testate rhizopod (thecamoebian) research in Canada

    R.Timothy Patterson;Arun Kumar

  • Intertidal benthic foraminiferal biofacies on the Fraser River delta, British Columbia; modern distribution and paleoecological importance

    R. Timothy Patterson

  • Evidence for a Younger Dryas-like cooling event on the British Columbia coast

    Rolf W. Mathewes;Linda E. Heusser;R. Timothy Patterson

  • Arcellaceans as pollution indicators in mine tailing contaminated lakes near Cobalt, Ontario, Canada

    Eduard G. Reinhardt;Andrew P. Dalby;Arun Kumar;R. Timothy Patterson

  • Arcellaceans ("thecamoebians") in small lakes of New Brunswick and Nova Scotia; modern distribution and Holocene stratigraphic changes

    R. T. Patterson;K. D. MacKinnon;D. B. Scott;F. S. Medioli

  • Thecamoebians as a tool for reconstruction of paleoenvironments in some Italian lakes in the foothills of the southern Alps (Orta, Varese and Candia)

    Alessandra Asioli;Franco S. Medioli;R. Timothy Patterson

  • ERROR-WEIGHTED MAXIMUM LIKELIHOOD (EWML): A NEW STATISTICALLY BASED METHOD TO CLUSTER QUANTITATIVE MICROPALEONTOLOGICAL DATA

    Evan Fishbein;R. Timothy Patterson

  • Arcellaceans (thecamoebians) as proxies of arsenic and mercury contamination in northeastern Ontario lakes

    Unknown

  • Controls on the contemporary distribution of lake thecamoebians (testate amoebae) within the Greater Toronto Area and their potential as water quality indicators

    Helen M. Roe;R. Timothy Patterson;Graeme T. Swindles

  • Arcellaceans (thecamoebians) as indicators of land-use change: settlement history of the Swan Lake area, Ontario as a case study

    R. Timothy Patterson;Andrew Dalby;Arun Kumar;Lori A. Henderson

  • OXYGEN LEVEL CONTROL ON FORAMINIFERAL DISTRIBUTION IN EFFINGHAM INLET, VANCOUVER ISLAND, BRITISH COLUMBIA, CANADA

    R. Timothy Patterson;Jean-Pierre Guilbault;Richard E. Thomson

  • ASSESSMENT OF ARCELLACEAN (THECAMOEBIAN) ASSEMBLAGES, SPECIES, AND STRAINS AS CONTAMINANT INDICATORS IN JAMES LAKE, NORTHEASTERN ONTARIO, CANADA

    R. Timothy Patterson;Arun Kumar

  • Late Holocene sea-level changes and isostatic crustal movements in Atlantic Canada

    W.Roland Gehrels;Glenn A. Milne;Jason R. Kirby;R.Timothy Patterson

  • Preservation potential of salt marsh foraminifera from the Fraser River delta, British Columbia

    Karina E. Jonasson;R. Timothy Patterson

  • Marsh Foraminifera from Nanaimo, British Columbia (Canada); implications of infaunal habitat and taphonomic biasing

    Unknown

  • Practical guidelines and recent advances in the Itrax XRF core-scanning procedure.

    Ludvig Löwemark;Menno Bloemsma;Ian Croudace;J. Stephen Daly

  • Testate Amoeba Functional Traits and Their Use in Paleoecology

    Katarzyna Marcisz;Vincent E. J. Jassey;Anush Kosakyan;Valentyna Krashevska

  • Stratigrafia e sedimentologia della sequenza sedimentaria oligocenica-quaternaria del bacino calabro-ionico

    William Cavazza;John Blenkinsop;Peter G. de Celles;R. Timothy Patterson

  • Late Holocene sedimentary response to solar and cosmic ray activity influenced climate variability in the NE Pacific

    R. Timothy Patterson;Andreas Prokoph;Alice Chang

  • Taphonomy of tidal marsh foraminifera: implications of surface sample thickness for high-resolution sea-level studies

    R.Timothy Patterson;Jean-Pierre Guilbault;John J Clague

  • A paleolimnological record of Holocene climate and environmental change in the Temagami region, northeastern Ontario

    Robert E. A. Boudreau;Jennifer M. Galloway;R. Timothy Patterson;Arun Kumar

  • Development of an Arcellacea (testate lobose amoebae) based transfer function for sedimentary Phosphorus in lakes

    R. Timothy Patterson;Helen M. Roe;Graeme T. Swindles

  • DISTRIBUTION OF THECAMOEBIANS (TESTATE AMOEBAE) IN SMALL LAKES AND PONDS, BARBADOS, WEST INDIES

    Helen M. Roe;R. Timothy Patterson

Frequent Co-Authors

Helen Roe
Helen Roe Queen's University Belfast
Graeme T. Swindles
Graeme T. Swindles Queen's University Belfast
Eduard G. Reinhardt
Eduard G. Reinhardt McMaster University
Richard E. Thomson
Richard E. Thomson Fisheries and Oceans Canada
Hamed Sanei
Hamed Sanei Aarhus University
Christopher Spence
Christopher Spence Environment and Climate Change Canada
William Cavazza
William Cavazza University of Bologna
Ian D. Clark
Ian D. Clark University of Ottawa
Daniel F. Belknap
Daniel F. Belknap University of Maine
Mariusz Gałka
Mariusz Gałka Adam Mickiewicz University in Poznań

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