Imperial College London


Faculty of Natural SciencesDepartment of Life Sciences (Silwood Park)

Professor of Evolutionary Biology



+44 (0)20 7594 2247t.barraclough Website




N2.4Silwood ParkSilwood Park





Research Interests

I work on the evolution of species diversity. Why does life evolve into the distinct species? Why do some lineages and regions contain more species than others? What are the adaptive causes and consequences of species diversity? The work combines theory with experimental, molecular and field approaches across a range of different organisms.

  • Evolution without sex: speciation, adaptation and evolutionary genomics in bdelloid rotifers
  • Evolution in microbial communities 
  • Linking population and phylogenetic approaches to identify units and processes of diversification 
  •  Theory of species origins and evolutionary dynamics

Visit the web-page for my lab here

Research focus - bacteria

Selected Publications

Journal Articles

Fiegna F, Moreno-Letelier A, Bell T, et al., 2015, Evolution of species interactions determines microbial community productivity in new environments, ISME Journal, Vol:9, ISSN:1751-7362, Pages:1235-1245

Tang CQ, Obertegger U, Fontaneto D, et al., 2014, SEXUAL SPECIES ARE SEPARATED BY LARGER GENETIC GAPS THAN ASEXUAL SPECIES IN ROTIFERS, Evolution, Vol:68, ISSN:0014-3820, Pages:2901-2916

Frost GS, Walton GE, Swann JR, et al., 2014, Impacts of Plant-Based Foods in Ancestral Hominin Diets on the Metabolism and Function of Gut Microbiota In Vitro, MBIO, Vol:5, ISSN:2150-7511

Humphreys AM, Barraclough TG, 2014, The evolutionary reality of higher taxa in mammals, Proceedings of the Royal Society B: Biological Sciences, Vol:281, ISSN:0962-8452

Fujisawa T, Barraclough TG, 2013, Delimiting Species Using Single-Locus Data and the Generalized Mixed Yule Coalescent Approach: A Revised Method and Evaluation on Simulated Data Sets, Systematic Biology, Vol:62, ISSN:1063-5157, Pages:707-724

Kisel Y, Barraclough TG, 2010, Speciation Has a Spatial Scale That Depends on Levels of Gene Flow, American Naturalist, Vol:175, ISSN:0003-0147, Pages:316-334

Waterman RJ, Bidartondo MI, Stofberg J, et al., 2011, The Effects of Above- and Belowground Mutualisms on Orchid Speciation and Coexistence, American Naturalist, Vol:177, ISSN:0003-0147, Pages:E54-E68

Perron GG, Lee AEG, Wang Y, et al., 2012, Bacterial recombination promotes the evolution of multi-drug-resistance in functionally diverse populations, Proceedings of the Royal Society B: Biological Sciences, Vol:279, ISSN:0962-8452, Pages:1477-1484

Lawrence D, Fiegna F, Behrends V, et al., 2012, Species Interactions Alter Evolutionary Responses to a Novel Environment, PLOS Biology, Vol:10, ISSN:1545-7885

Tang CQ, Leasi F, Obertegger U, et al., 2012, The widely used small subunit 18S rDNA molecule greatly underestimates true diversity in biodiversity surveys of the meiofauna, Proceedings of the National Academy of Sciences of the United States of America, Vol:109, ISSN:0027-8424, Pages:16208-16212

Boschetti C, Carr A, Crisp A, et al., 2012, Biochemical Diversification through Foreign Gene Expression in Bdelloid Rotifers, Plos Genetics, Vol:8, ISSN:1553-7404

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