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University · Orono · United States

University of Maine

In research, University of Maine stands highest in Physical Sciences (#2,135 of 12,888 worldwide), Social Sciences (#2,033 of 10,521 worldwide) and Environmental Science (#827 of 3,551 worldwide), 2022–2025. Relative to its size it is most specialised in Nature and Landscape Conservation, Oceanography and Ecology — Nature and Landscape Conservation is 6.1× its share of world research.

umaine.eduROR OpenAlex
World rank, 2022–2025
#2,387
of 28,054 · #1,138 all time
Rank in United States
#365
of 4,192
Research works
16k
▲ 19% vs 2013–17
Citations
442k
27.0 per fractional work
Top-10% rate
20.2%
record average 16.5%
Open access
28%
world 28%

What is University of Maine known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #2,135 of 12,888 18.7%829 #991
Social SciencesDomain #2,033 of 10,521 23.2%481 #817
Environmental ScienceField #827 of 3,551 20.1%257 #369
Social SciencesField #1,553 of 6,365 26.1%231 #727
Health SciencesDomain #3,413 of 11,982 17.3%177 #2769
Life SciencesDomain #2,488 of 7,800 21.4%275 #1754
EngineeringField #2,188 of 6,636 18.1%237 #1518
Agricultural and Biological SciencesField #1,319 of 3,409 24.7%152 #907
Computer ScienceField #1,879 of 4,667 21.6%93 #1434
Sociology and Political ScienceSubfield #1,390 of 2,578 25.8%79 #748

Each strip is that field’s whole ranked pool, with the notch where University of Maine sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#991 #2,135
  2. Social Sciences#817 #2,033
  3. Environmental Science#369 #827
  4. Social Sciences#727 #1,553
  5. Health Sciences#2,769 #3,413
  6. Life Sciences#1,754 #2,488
  7. Engineering#1,518 #2,188
  8. Agricultural and Biological Sciences#907 #1,319
  9. Computer Science#1,434 #1,879
  10. Sociology and Political Science#748 #1,390
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does University of Maine specialise in?

Where its research is concentrated relative to its size: Nature and Landscape Conservation takes 6.1× the share of its output that it takes of world research.

  1. Nature and Landscape ConservationSubfield · 25.4 works6.1×
  2. OceanographySubfield · 26.6 works5.4×
  3. EcologySubfield · 73.7 works5.3×
  4. BiomaterialsSubfield · 37.9 works5.0×
  5. Global and Planetary ChangeSubfield · 62.7 works4.7×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 1.82× its world share, 152 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.86× its world share, 81 worksBiochemistry, Geneti…Immunology and Microbiology: 0.73× its world share, 13 worksImmunology and Micro…Neuroscience: 0.94× its world share, 27 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.27× its world share, 2 worksPharmacology, Toxico…Chemical Engineering: 0.71× its world share, 4 worksChemical EngineeringChemistry: 0.63× its world share, 18 worksChemistryComputer Science: 0.68× its world share, 93 worksComputer ScienceEarth and Planetary Sciences: 3.12× its world share, 86 worksEarth and Planetary …Energy: 0.47× its world share, 8 worksEnergyEngineering: 0.90× its world share, 237 worksEngineeringEnvironmental Science: 2.93× its world share, 257 worksEnvironmental ScienceMaterials Science: 1.40× its world share, 86 worksMaterials ScienceMathematics: 1.16× its world share, 24 worksMathematicsPhysics and Astronomy: 0.42× its world share, 16 worksPhysics and AstronomyDentistry: 0.25× its world share, 2 worksDentistryHealth Professions: 0.91× its world share, 42 worksHealth ProfessionsMedicine: 0.36× its world share, 121 worksMedicineNursing: 1.10× its world share, 10 worksNursingVeterinary: 0.72× its world share, 2 worksVeterinaryArts and Humanities: 1.44× its world share, 73 worksArts and HumanitiesBusiness, Management and Accounting: 0.54× its world share, 30 worksBusiness, Management…Decision Sciences: 0.65× its world share, 11 worksDecision SciencesEconomics, Econometrics and Finance: 1.34× its world share, 50 worksEconomics, Econometr…Psychology: 1.56× its world share, 84 worksPsychologySocial Sciences: 1.04× its world share, 231 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 3.1×. Every wedge is a field page.

Who are the top researchers at University of Maine?

Ranked on the composite score, Max J. Egenhofer, George H. Denton and Colin Martindale lead among researchers whose main affiliation is University of Maine.

  1. 1 Max J. Egenhofer United States · #10,150 worldwide 1.1k citations · 51 works
  2. 2 George H. Denton United States · #13,033 worldwide 814 citations · 59 works
  3. 3 Colin Martindale United States · #28,559 worldwide 562 citations · 40 works
  4. 4 Howard Eves United States · #33,972 worldwide 144 citations · 109 works
  5. 5 Malcolm L. Hunter United States · #35,999 worldwide 366 citations · 39 works
  6. 6 Gary M. King United States · #38,748 worldwide 730 citations · 58 works
  7. 7 Susan R. McKay United States · #40,677 worldwide 363 citations · 43 works
  8. 8 Brian J. McGill United States · #43,082 worldwide 569 citations · 34 works
  9. 9 Emmanuel Boss United States · #44,400 worldwide 1.2k citations · 97 works
  10. 10 Steven E. Barkan United States · #45,665 worldwide 262 citations · 40 works
All ranked researchers at University of Maine

Which keywords describe research at University of Maine?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Invasive Species, Biodiversity, Biomedical Applications, Habitat Fragmentation, Sustainability, Conservation and Fisheries Sustainability.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Climate Change170▲ 3.6×75 topics
  2. Sustainability58▲ 1.35×60 topics
  3. Biomedical Applications52▲ 2.5×25 topics
  4. Biodiversity47▲ 3.6×23 topics
  5. Environmental Impact46▲ 1.54×45 topics
  6. Invasive Species44▲ 5.8×17 topics
  7. Mental Health38▲ 1.49×31 topics
  8. Remote Sensing38▲ 1.73×28 topics
  9. Globalization36◆ 1.04×51 topics
  10. Renewable Energy33▲ 1.28×36 topics
  11. Conservation29▲ 3.9×18 topics
  12. Nanocomposites29▲ 2.0×16 topics
  13. Habitat Fragmentation26▲ 6.8×5 topics
  14. Identity25▲ 1.98×25 topics
  15. Global Warming25▲ 3.5×11 topics
  16. Biodiversity Conservation24▲ 3.7×9 topics
  17. Ecosystem Services24▲ 3.5×9 topics
  18. Global Change23▲ 5.1×6 topics
  19. Ionic Liquids22▲ 4.4×8 topics
  20. Population Dynamics22▲ 4.9×11 topics
  21. Fisheries Sustainability21▲ 13×2 topics
  22. Trophic Cascades20▲ 12×2 topics
  23. Conservation Biology19▲ 11×4 topics
  24. Ecosystem Resilience19▲ 7.2×5 topics
  25. Cellulose Nanocrystals18▲ 24×1 topic
  26. Nanocellulose18▲ 24×1 topic
  27. Additive Manufacturing18▲ 3.2×7 topics
  28. Climate Change Impacts17▲ 8.4×7 topics
  29. Ecosystem Functioning15▲ 4.4×7 topics
  30. Paleoclimatology15▲ 10×2 topics
  31. Model Evaluation14▲ 6.6×2 topics
  32. Biomass Estimation14▲ 5.1×3 topics
  33. Ecosystem13▲ 7.0×4 topics
  34. Holocene13▲ 6.4×3 topics
  35. Biological Invasions13▲ 8.0×3 topics
  36. Ecosystem Management13▲ 12×1 topic
  37. Marine Fisheries13▲ 17×1 topic
  38. Eutrophication12▲ 6.9×5 topics
  39. Sea Level12▲ 7.2×2 topics
  40. Teacher Preparation11▲ 9.3×4 topics

Which research topics does University of Maine publish most on?

By volume in 2022–2025: Advanced Cellulose Research Studies, Marine and fisheries research, Geology and Paleoclimatology Research and Forest Management and Policy.

Advanced Cellulose Resea…18Advanced Cellulose Research Studies: 18 fractional worksMarine and fisheries res…13Marine and fisheries research: 13 fractional worksGeology and Paleoclimatology Research: 11 fractional worksForest Management and Policy: 10 fractional worksSpecies Distribution and Climate Change: 10 fractional worksAdditive Manufacturing and 3D Printing Technologies: 9 fractional worksFish Ecology and Management Studies: 8 fractional worksEcology and Vegetation D…8Ecology and Vegetation Dynamics Studies: 8 fractional worksWildlife Ecology and Conservation: 8 fractional worksPlant and animal studies: 8 fractional works
BiomaterialsGlobal and Planetary ChangeAtmospheric ScienceEcological Modeling4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Advanced Cellulose Research Studies Biomaterials 18 works
  2. 2 Marine and fisheries research Global and Planetary Change 13 works
  3. 3 Geology and Paleoclimatology Research Atmospheric Science 11 works
  4. 4 Forest Management and Policy Global and Planetary Change 10 works
  5. 5 Species Distribution and Climate Change Ecological Modeling 10 works
  6. 6 Additive Manufacturing and 3D Printing Technologies Automotive Engineering 9 works
  7. 7 Fish Ecology and Management Studies Nature and Landscape Conservation 8 works
  8. 8 Ecology and Vegetation Dynamics Studies Nature and Landscape Conservation 8 works
  9. 9 Wildlife Ecology and Conservation Ecology 8 works
  10. 10 Plant and animal studies Ecology, Evolution, Behavior and Systematics 8 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available27.7%not open72.3%

World: 28% of research is openly available.

with international co-authors12.3%domestic only87.7%

World: 19% is written across borders.

How has University of Maine's research output changed?

Output in 2018–2022 was 19% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Orono

All research institutions in Orono

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.