Biodiversity Research Institute
In research, Biodiversity Research Institute stands highest in Environmental Science (#4,076 of 6,208 worldwide) and Physical Sciences (#18,833 of 21,541 worldwide), over all time. Relative to its size it is most specialised in Environmental Science — Environmental Science is 9.9× its share of world research.
- World rank, 2022–2025
- #18,365 of 28,054 · #26,680 all time
- Rank in United States
- #2,661 of 4,192
- Research works
- 262 ▲ 12% vs 2013–17
- Citations
- 5.6k 21.4 per fractional work
- Top-10% rate
- 23.2% record average 16.5%
- Open access
- 62% world 28%
What is Biodiversity Research Institute known for in research?
The fields where it stands highest, over all time, ranked among every institution above the floor in each field.
| Field | World rank | Where that sits | Top-10% rate | Works |
|---|---|---|---|---|
| Environmental ScienceField | #4,076 of 6,208 | 25.0% | 137 | |
| Physical SciencesDomain | #18,833 of 21,541 | 24.5% | 156 |
Each strip is that field’s whole ranked pool, with the notch where Biodiversity Research Institute 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).
What does Biodiversity Research Institute specialise in?
Where its research is concentrated relative to its size: Environmental Science takes 9.9× the share of its output that it takes of world research.
- Environmental ScienceField · 35.2 works9.9×
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.
Rings at 0.5×, 1× and 2×. Widest outward: Environmental Science, 9.9×. Every wedge is a field page.
- Environmental Science 9.9×
- Veterinary 6.6×
- Agricultural and Biological Sciences 4.1×
- Biochemistry, Genetics and Molecular Biology 2.4×
- Earth and Planetary Sciences 2.2×
- Immunology and Microbiology 1.5×
- Decision Sciences 0.8×
- Mathematics 0.5×
- Psychology 0.2×
- Nursing 0.2×
- Medicine 0.2×
- Computer Science 0.2×
- Arts and Humanities 0.2×
- Chemistry 0.1×
- Social Sciences 0.1×
- Engineering 0.1×
- Materials Science 0.1×
- Health Professions 0.1×
- Neuroscience 0.0×
- Business, Management and Accounting 0.0×
- Economics, Econometrics and Finance 0.0×
Who are the top researchers at Biodiversity Research Institute?
Ranked on the composite score, David C. Evers and Evan M. Adams lead among researchers whose main affiliation is Biodiversity Research Institute.
- 1 David C. Evers United States · #154,573 worldwide 179 citations · 28 works
- 2 Evan M. Adams United States · #1,613,310 worldwide 25 citations · 15 works
Which keywords describe research at Biodiversity Research Institute?
By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Biodiversity, Population Dynamics, Invasive Species, Conservation, Conservation Biology, Habitat Fragmentation and Habitat Selection.
- Reproductive Strategies
- Phylogeny
- Evolution
- Avian Ecology
- Island Ecosystems
- Taxonomy
- Marine Mammals
- Genetic Diversity
- Functional Diversity
- Acoustic Communication
- Species Richness
- Biogeography
- Occupancy Rates
- Ecosystem
- Species Distribution Modeling
- Predator-Prey Interactions
- Habitat Selection
- Conservation Biology
- Invasive Species
- Biodiversity
- Climate Change
- Population Dynamics
- Conservation
- Habitat Fragmentation
- Global Change
- Ecological Niche
- Trophic Cascades
- Animal Movement
- Phylogenetic Analysis
- Biological Invasions
- Ecosystem Services
- Community Ecology
- Adaptive Evolution
- Anthropogenic Noise
- Molecular Phylogeny
- Ecosystem Resilience
- Rodent Eradication
- Migration Patterns
- Genetic Structure
- DNA Barcoding
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
- Climate Change21▲ 11×39 topics
- Biodiversity14▲ 26×19 topics
- Population Dynamics12▲ 69×9 topics
- Invasive Species12▲ 38×16 topics
- Conservation10▲ 31×15 topics
- Conservation Biology8▲ 113×3 topics
- Habitat Fragmentation7▲ 45×5 topics
- Habitat Selection6▲ 116×2 topics
- Global Change5▲ 28×5 topics
- Predator-Prey Interactions5▲ 84×2 topics
- Ecological Niche4▲ 103×1 topic
- Species Distribution Modeling4▲ 103×1 topic
- Trophic Cascades4▲ 64×2 topics
- Ecosystem4▲ 52×4 topics
- Animal Movement4▲ 103×1 topic
- Occupancy Rates4▲ 103×1 topic
- Phylogenetic Analysis4▲ 18×10 topics
- Biogeography4▲ 20×13 topics
- Biological Invasions4▲ 56×3 topics
- Species Richness4▲ 78×2 topics
- Ecosystem Services3▲ 12×8 topics
- Acoustic Communication3▲ 91×2 topics
- Community Ecology3▲ 55×2 topics
- Functional Diversity3▲ 74×1 topic
- Adaptive Evolution3▲ 72×2 topics
- Genetic Diversity3▲ 8.7×7 topics
- Anthropogenic Noise2▲ 119×1 topic
- Marine Mammals2▲ 119×1 topic
- Molecular Phylogeny2▲ 22×8 topics
- Taxonomy2▲ 26×6 topics
- Ecosystem Resilience2▲ 22×5 topics
- Island Ecosystems2▲ 103×1 topic
- Rodent Eradication2▲ 166×1 topic
- Avian Ecology2▲ 149×1 topic
- Migration Patterns2▲ 123×1 topic
- Evolution2▲ 12×11 topics
- Genetic Structure2▲ 40×3 topics
- Phylogeny2▲ 20×8 topics
- DNA Barcoding2▲ 18×6 topics
- Reproductive Strategies2▲ 68×2 topics
Which research topics does Biodiversity Research Institute publish most on?
By volume in 2022–2025: Species Distribution and Climate Change, Wildlife Ecology and Conservation, Ecology and Vegetation Dynamics Studies and Marine animal studies overview.
Area is fractional works; colour is the subfield each topic belongs to.
- 1 Species Distribution and Climate Change Ecological Modeling 4 works
- 2 Wildlife Ecology and Conservation Ecology 4 works
- 3 Ecology and Vegetation Dynamics Studies Nature and Landscape Conservation 3 works
- 4 Marine animal studies overview Ecology 2 works
- 5 Animal Ecology and Behavior Studies Ecology 2 works
- 6 Avian ecology and behavior Ecology 2 works
- 7 Amphibian and Reptile Biology Global and Planetary Change 2 works
- 8 Plant and animal studies Ecology, Evolution, Behavior and Systematics 2 works
- 9 Animal Behavior and Reproduction Ecology, Evolution, Behavior and Systematics 2 works
- 10 Genetic diversity and population structure Genetics 1 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.
World: 28% of research is openly available.
World: 19% is written across borders.
How has Biodiversity Research Institute's research output changed?
Output in 2018–2022 was 12% higher than in 2013–2017.
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 Portland
- Mitchell Institute
- University of Southern Maine
- Maine Medical Center
- MaineHealth
- University of Maine School of Law
- Microwave Medical Systems (United States)
- Gulf of Maine Research Institute
- Barbara Bush Children’s Hospital
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.