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Archive · Antananarivo · Madagascar

Tsimbazaza Zoo

pbzt.recherches.gov.mgROR OpenAlex
Research works
58
▼ 16% vs 2018-21
Citations
813
14.0 per fractional work
Top-10% rate
6.8%
all institutions 10.0%
Open access
61%
world 40%
International
78%
world 18%
Tsimbazaza Zoo

Not ranked overall: Tsimbazaza Zoo is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

Which fields of science does Tsimbazaza Zoo work in?

In all years, 63% of research at Tsimbazaza Zoo is in Life Sciences, 21% in Physical Sciences. Its largest fields are Agricultural and Biological Sciences (43%), Biochemistry, Genetics and Molecular Biology (17%), Environmental Science (15%). It does 3.4× the world's share of Life Sciences.

Life Sciences: 37 fractional works · 63.4% of its workAgricultural and Biological Sciences: 25 fractional works · 42.5% of its workEcology, Evolution, Behavior and Systematics: 16 fractional works · 28.1% of its workPlant Science: 3 fractional works · 5.1% of its workForestry: 2 fractional works · 4.0% of its workInsect Science: 2 fractional works · 2.6% of its workHorticulture: 0 fractional works · 0.7% of its workAquatic Science: 0 fractional works · 0.6% of its workSoil Science: 0 fractional works · 0.6% of its workAnimal Science and Zoology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.3% of its workBiochemistry, Genetics and Molecular Biology: 10 fractional works · 17.3% of its workMolecular Biology: 4 fractional works · 7.2% of its workGenetics: 4 fractional works · 6.9% of its workBiochemistry: 1 fractional works · 1.2% of its workCell Biology: 0 fractional works · 0.7% of its workBiophysics: 0 fractional works · 0.6% of its workDevelopmental Biology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.3% of its workImmunology and Microbiology: 2 fractional works · 2.7% of its workParasitology: 1 fractional works · 0.9% of its workImmunology: 0 fractional works · 0.7% of its workMicrobiology: 0 fractional works · 0.6% of its workVirology: 0 fractional works · 0.5% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.6% of its workPharmacology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 0 fractional works · 0.3% of its workNeurology: 0 fractional works · 0.3% of its workPhysical Sciences: 12 fractional works · 20.5% of its workEnvironmental Science: 9 fractional works · 15.3% of its workGlobal and Planetary Change: 3 fractional works · 5.9% of its workEcology: 2 fractional works · 3.3% of its workEcological Modeling: 2 fractional works · 3.2% of its workNature and Landscape Conservation: 1 fractional works · 2.2% of its workEnvironmental Engineering: 0 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEngineering: 1 fractional works · 2.0% of its workBiomedical Engineering: 1 fractional works · 1.0% of its workMedia Technology: 0 fractional works · 0.4% of its workBuilding and Construction: 0 fractional works · 0.3% of its workCivil and Structural Engineering: 0 fractional works · 0.3% of its workComputer Science: 1 fractional works · 1.0% of its workSignal Processing: 0 fractional works · 0.6% of its workInformation Systems: 0 fractional works · 0.4% of its workMaterials Science: 0 fractional works · 0.8% of its workBiomaterials: 0 fractional works · 0.8% of its workChemistry: 0 fractional works · 0.7% of its workOrganic Chemistry: 0 fractional works · 0.7% of its workEarth and Planetary Sciences: 0 fractional works · 0.6% of its workPaleontology: 0 fractional works · 0.6% of its workMathematics: 0 fractional works · 0.2% of its workSocial Sciences: 7 fractional works · 11.3% of its workSocial Sciences: 3 fractional works · 5.7% of its workSociology and Political Science: 1 fractional works · 2.3% of its workAnthropology: 1 fractional works · 1.8% of its workPolitical Science and International Relations: 0 fractional works · 0.9% of its workGeography, Planning and Development: 0 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 3 fractional works · 5.3% of its workSocial Psychology: 3 fractional works · 5.3% of its workBusiness, Management and Accounting: 0 fractional works · 0.1% of its workDecision Sciences: 0 fractional works · 0.1% of its workHealth Sciences: 3 fractional works · 4.8% of its workMedicine: 2 fractional works · 4.1% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 1.7% of its workComplementary and alternative medicine: 1 fractional works · 1.2% of its workPharmacology: 0 fractional works · 0.8% of its workInfectious Diseases: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.6% of its workSmall Animals: 0 fractional works · 0.6% of its workNursing: 0 fractional works · 0.1% of its workALL ITS WORKTsimbazaza Zoo58fractional works, all years
Life Sciences63%Physical Sciences21%Health Sciences5%Social Sciences11%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in all years. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 19 fields, with their numbers
    1. Agricultural and Biological Sciences2542.5%
    2. Biochemistry, Genetics and Molecular Biology1017.3%
    3. Immunology and Microbiology22.7%
    4. Pharmacology, Toxicology and Pharmaceutics00.6%
    5. Neuroscience00.3%
    1. Environmental Science915.3%
    2. Engineering12.0%
    3. Computer Science11.0%
    4. Materials Science00.8%
    5. Chemistry00.7%
    6. Earth and Planetary Sciences00.6%
    7. Mathematics00.2%
    1. Social Sciences35.7%
    2. Psychology35.3%
    3. Business, Management and Accounting00.1%
    4. Decision Sciences00.1%
    1. Medicine24.1%
    2. Veterinary00.6%
    3. Nursing00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 11.01× its world share, 7 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 3.22× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 1.56× its world share, 0 worksImmunology and Micro…Neuroscience: 0.77× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 2.43× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.53× its world share, 0 worksChemistryEngineering: 0.28× its world share, 1 worksEngineeringEnvironmental Science: 1.59× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.48× its world share, 0 worksMaterials ScienceMedicine: 0.09× its world share, 0 worksMedicinePsychology: 1.30× its world share, 0 worksPsychologySocial Sciences: 0.51× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Agricultural and Biological Sciences, 11.0×. Every wedge is a field page.

All 12 fields, with their numbers
  1. Agricultural and Biological Sciences11.01×7 works
  2. Biochemistry, Genetics and Molecular Biology3.22×2 works
  3. Pharmacology, Toxicology and Pharmaceutics2.43×0 works
  4. Environmental Science1.59×1 works
  5. Immunology and Microbiology1.56×0 works
  6. Psychology1.30×0 works
  7. Neuroscience0.77×0 works
  8. Chemistry0.53×0 works
  9. Social Sciences0.51×1 works
  10. Materials Science0.48×0 works
  11. Engineering0.28×1 works
  12. Medicine0.09×0 works

Who are the top researchers at Tsimbazaza Zoo?

Ranked on the quality score, Jacqueline Razanatsoa, Franck Rakotonasolo and Rokiman Letsara lead among researchers whose main affiliation is Tsimbazaza Zoo.

  1. 1 Jacqueline Razanatsoa Madagascar · #2,081,098 worldwide 379 citations · 21 works
  2. 2 Franck Rakotonasolo Madagascar · #2,511,643 worldwide 810 citations · 67 works
  3. 3 Rokiman Letsara Madagascar · #2,995,126 worldwide 69 citations · 26 works
  4. 4 Jasmin Emile Randrianirina Madagascar · #4,082,806 worldwide 367 citations · 17 works
  5. 5 Jacky Andriantiana Madagascar · #4,587,669 worldwide 176 citations · 25 works
All ranked researchers at Tsimbazaza Zoo

What are the most cited papers from Tsimbazaza Zoo?

The most cited paper from Tsimbazaza Zoo is "Phylogeny and biogeography of Balsaminaceae inferred from ITS sequences" (Yong–Ming Yuan, Yi Song, Koen P. Geuten et al., 2004), with 198 citations. Next come "Sympatric Mouse Lemurs in Nort-West Madagascar: A New Rufous Mouse Lemur Species (Microcebus ravelobensis)" (140) and "Madagascar's grasses and grasslands: anthropogenic or natural?" (120).

Most cited papers
#PaperReleasedCitations
1 Phylogeny and biogeography of Balsaminaceae inferred from ITS sequences Yong–Ming Yuan, Yi Song, Koen P. Geuten et al. · Taxon May 2004 198
2 Sympatric Mouse Lemurs in Nort-West Madagascar: A New Rufous Mouse Lemur Species (Microcebus ravelobensis) Elke Zimmermann, Sabine Cepok, Nasolo Rakotoarison et al. · Folia Primatologica 14 Feb 1998 140
3 Madagascar's grasses and grasslands: anthropogenic or natural? Maria Sergeevna Vorontsova, Guillaume Besnard, Félix Forest et al. · Proceedings of the Royal Society B Biological Sciences Open access 20 Jan 2016 120
4 Consumption of cyanogenic bamboo by a newly discovered species of bamboo lemur Kenneth E. Glander, Patricia Chapple Wright, David S. Seigler et al. · American Journal of Primatology 1989 96
5 Grass diversification in Madagascar: In situ radiation of two large C3 shade clades and support for a Miocene to Pliocene origin of C4 grassy biomes Jan Hackel, Maria Sergeevna Vorontsova, Olinirina Prisca Nanjarisoa et al. · Journal of Biogeography 15 Feb 2018 93
All 60 most cited papers, with filters and sorting

Which keywords describe research at Tsimbazaza Zoo?

By fractional works in all years, weighted toward what it does more of than the world: Climate Change, Biodiversity, Biogeography, Habitat Fragmentation, Invasive Species, Global Change, Molecular Phylogeny and Ecosystem Services.

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

Size is fractional works in all years 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 Change14▲ 9.0×14 topics
  2. Biodiversity11▲ 24×11 topics
  3. Biogeography10▲ 54×11 topics
  4. Habitat Fragmentation10▲ 57×4 topics
  5. Invasive Species8▲ 25×12 topics
  6. Global Change6▲ 37×2 topics
  7. Molecular Phylogeny6▲ 55×5 topics
  8. Ecosystem Services6▲ 31×3 topics
  9. Plant-Animal Interactions6▲ 90×1 topic
  10. Pollinator Decline6▲ 90×1 topic
  11. Taxonomy6▲ 66×7 topics
  12. Conservation5▲ 18×11 topics
  13. Diversification5▲ 201×2 topics
  14. Phylogenetics5▲ 167×2 topics
  15. Angiosperm Phylogeny5▲ 258×1 topic
  16. Conservation Biology5▲ 73×3 topics
  17. Flowering Plants5▲ 258×1 topic
  18. Phylogenetic Analysis5▲ 22×8 topics
  19. Population Dynamics5▲ 26×6 topics
  20. Smallholder Farmers3▲ 42×4 topics
  21. Symbiosis3▲ 47×3 topics
  22. Biodiversity Conservation3▲ 20×4 topics
  23. Genomics3▲ 15×4 topics
  24. Evolution3▲ 18×6 topics
  25. Genetic Diversity3▲ 11×12 topics
  26. Biodiversity Loss3▲ 76×2 topics
  27. Agroforestry3▲ 101×2 topics
  28. Gesneriaceae3▲ 264×1 topic
  29. Microbiota3▲ 21×3 topics
  30. phylogenetic reconstruction3▲ 264×1 topic
  31. Amphibian Declines3▲ 155×1 topic
  32. Chytridiomycosis3▲ 155×1 topic
  33. Ants3▲ 86×1 topic
  34. Social Insects3▲ 86×1 topic
  35. Sustainable Agriculture2▲ 16×3 topics
  36. Nutritional Value2▲ 42×2 topics
  37. Indigenous Fruits2▲ 224×1 topic
  38. Phylogeny2▲ 22×8 topics
  39. Tree Domestication2▲ 224×1 topic
  40. Primates2▲ 140×1 topic

Which research topics does Tsimbazaza Zoo publish most on?

By volume in 2022-now: Plant Diversity and Evolution, Plant and animal studies, Insect and Arachnid Ecology and Behavior and African Botany and Ecology Studies.

Plant Diversity and Evol…1Plant Diversity and Evolution: 1 fractional worksPlant and animal studies: 1 fractional worksInsect and Arachnid Ecology and Behavior: 1 fractional worksAfrican Botany and Ecology Studies: 1 fractional worksLocal Economic Development and Planning: 0 fractional worksBryophyte Studies and Re…0Bryophyte Studies and Records: 0 fractional worksAnimal and Plant Science Education: 0 fractional worksPlant and Fungal Species Descriptions: 0 fractional worksAfrican Studies and Ethnography: 0 fractional worksAdvances in Cucurbitaceae Research: 0 fractional works
Ecology, Evolution, Behavior and SystematicsGeneticsForestryPolitical Science and International Relations3 others

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

  1. 1 Plant Diversity and Evolution Ecology, Evolution, Behavior and Systematics 1 works
  2. 2 Plant and animal studies Ecology, Evolution, Behavior and Systematics 1 works
  3. 3 Insect and Arachnid Ecology and Behavior Genetics 1 works
  4. 4 African Botany and Ecology Studies Forestry 1 works
  5. 5 Local Economic Development and Planning Political Science and International Relations 0 works
  6. 6 Bryophyte Studies and Records Ecology, Evolution, Behavior and Systematics 0 works
  7. 7 Animal and Plant Science Education Social Psychology 0 works
  8. 8 Plant and Fungal Species Descriptions Molecular Biology 0 works
  9. 9 African Studies and Ethnography Sociology and Political Science 0 works
  10. 10 Advances in Cucurbitaceae Research Genetics 0 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 available60.9%not open39.1%

World: 40% of research is openly available.

with international co-authors77.9%domestic only22.1%

World: 18% is written across borders.

How has Tsimbazaza Zoo's research output changed?

Output in 2022-2025 was 16% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Tsimbazaza Zoo as a percentage of every work published that year, 0.000062% in 2024.

still counting0.00010%0.00020%0.00030%Tsimbazaza Zoo0.000055% in 20251990200020102020

Fractional works of Tsimbazaza Zoo over all fractional works that year. How the balance of science has shifted.

Other research institutions in Antananarivo

All research institutions in Antananarivo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

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