Alastair GB Simpson: h-index, Total Citations, and Citation Map
Alastair GB Simpson's h-index is 57 (130 i10-index, 21,716+ total citations across 206+ publications) according to Google Scholar as of June 2026. Alastair GB Simpson is affiliated with Professor, Department of Biology, Dalhousie University.
Alastair GB Simpson is a researcher affiliated with Professor, Department of Biology, Dalhousie University, specializing in Protistology, Phylogenetics, Systematics. Their work has been cited 21,716 times. This profile visualizes their global influence, highlighting strong citation networks in United States.
Alastair GB Simpson's Citation Metrics
Bibliometric impact based on 206 indexed publications.
- H-Index
- 57
- i10-Index
- 130
- Total Citations
- 21,716
- Citing Countries
- 7
As of June 2026.
Alastair GB Simpson has an h-index of 57 and 21,716 total citations across 206 publications, with research cited by institutions in 7 countries.
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We've mapped 5,000 of 21,716 citations for Alastair GB Simpson
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How many species are there on Earth and in the ocean?
20114,413
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Citation Trend (Last 10 Years)
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About Alastair GB Simpson's research
Alastair GB Simpson is a researcher in Protistology, Phylogenetics and Systematics at Professor, Department of Biology, Dalhousie University. Their work has been cited 21,716 times across 206 publications (h-index 57), according to Google Scholar.
Their most-cited work, “How many species are there on Earth and in the ocean?” (2011), has accumulated 4,413 citations. Other influential works include “The new higher level classification of eukaryotes with emphasis on the taxonomy of protists” (2005) with 2,592 citations and “The revised classification of eukaryotes” (2012) with 2,290 citations.
Citations of Alastair GB Simpson's research come primarily from United States, China and Germany, reflecting international research impact across 5+ countries. The interactive citation map above shows the full geographic distribution of the institutions citing this work.
