Amphibian and Reptile Biology
Amphibian and Reptile Biology is a research topic within Global and Planetary Change. Science Explorer counts 33k research works in it since 1950. 22.0% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the global declines and extinctions of amphibian species, with a particular emphasis on the impact of chytridiomycosis, climate change, habitat fragmentation, and biodiversity loss. The papers cover topics such as pathogen impact, phylogenetic analysis, population dynamics, and conservation biology in the context of amphibian declines.
- Amphibian Declines
- Chytridiomycosis
- Climate Change
- Biodiversity Loss
- Pathogen Impact
- Habitat Fragmentation
- Species Extinction
- Phylogenetic Analysis
- Population Dynamics
- Conservation Biology
- Research works
- 33k fractional, since 1950
- In the world top 10%
- 7.3k per year above
- Top-10% rate
- 22.0% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- +11% the tick is no change
Which countries lead Amphibian and Reptile Biology research?
By volume, the United States and Brazil publish the most (1.1k and 532 works in 2022–2025).
By volume, 2022–2025
- 1 United States 1.1k works
- 2 Brazil 532 works
- 3 China 346 works
- 4 Australia 228 works
- 5 India 211 works
- 6 Colombia 198 works
- 7 Mexico 177 works
- 8 United Kingdom 165 works
- 9 Germany 162 works
- 10 Argentina 139 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Amphibian and Reptile Biology research?
By volume in 2022–2025, Universidad de Ibagué publishes the most Amphibian and Reptile Biology research, followed by Universidad Nacional Autónoma de México and Universidade de São Paulo.
By volume, 2022–2025
- 1 Universidad de IbaguéColombia 108 works
- 2 Universidad Nacional Autónoma de MéxicoMexico 44 works
- 3 Universidade de São PauloBrazil 36 works
- 4 Consejo Nacional de Investigaciones Científicas y TécnicasArgentina 28 works
- 5 Chinese Academy of SciencesChina 28 works
- 6 Universidade Estadual Paulista (Unesp)Brazil 26 works
- 7 Natural History MuseumUnited Kingdom 24 works
- 8 American Museum of Natural HistoryUnited States 21 works
- 9 University of FloridaUnited States 20 works
- 10 Centre National de la Recherche ScientifiqueFrance 20 works
Who are the leading researchers in Amphibian and Reptile Biology?
The most-cited researchers publishing on Amphibian and Reptile Biology include A. Townsend Peterson and Stephen E. Williams.
- 1 A. Townsend Peterson United States 2.1k citations
- 2 Stephen E. Williams Australia 2k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Amphibian and Reptile Biology research done?
The largest centres of Amphibian and Reptile Biology research in 2022–2025 are Ibagué (Colombia), São Paulo (Brazil), Beijing (China) and Mexico City (Mexico). Among places with at least 20 works in it, it is an unusually large share of all research in Ibagué.
Largest cities, 2022–2025
- 1 Ibagué Colombia 111 works
- 2 São Paulo Brazil 108 works
- 3 Beijing China 73 works
- 4 Mexico City Mexico 66 works
- 5 Paris France 64 works
- 6 Buenos Aires Argentina 53 works
- 7 London United Kingdom 51 works
- 8 New York United States 50 works
- 9 Sydney Australia 49 works
- 10 Washington D.C. United States 45 works
Where it is the local speciality
- IbaguéCO · 111.3 works198×
Location quotient: how much more of its research is in Amphibian and Reptile Biology than the world average.
Where is the best place to study Amphibian and Reptile Biology?
Among universities, judged by research, Universidade Federal de Lavras, Macquarie University and Universidad Nacional Autónoma de México score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Universidade Federal de LavrasBrazil | 60.2 | 32.1% | 11.4× | 9 | -17.8% |
| 2 | Macquarie UniversityAustralia | 51.7 | 16.9% | 8.2× | 14 | +53.8% |
| 3 | Universidad Nacional Autónoma de MéxicoMexico | 51.6 | 8.7% | 9.6× | 44 | +8.7% |
| 4 | Universidad de IbaguéColombia | 51.0 | 0.0% | 259.4× | 108 | — |
| 5 | James Cook UniversityAustralia | 50.5 | 16.9% | 16.6× | 10 | -8.0% |
| 6 | Universidad de Costa RicaCosta Rica | 49.7 | 13.7% | 9.8× | 9 | +76.3% |
| 7 | Universidade Federal de Mato Grosso do SulBrazil | 48.4 | 3.4% | 11.9× | 13 | +160.7% |
| 8 | Hainan Normal UniversityChina | 47.5 | 11.6% | 31.9× | 11 | +63.8% |
| 9 | Chengdu Institute of BiologyChina | 46.6 | 14.3% | 115.0× | 14 | -37.0% |
| 10 | Universidade do PortoPortugal | 46.0 | 18.8% | 5.7× | 15 | +45.5% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Amphibian and Reptile Biology research growing?
Output in 2018–2022 was 11% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Amphibian and Reptile Biology.
The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.