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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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The study presents (1) a validation of a method which was previously published allowing us to recognize different Ammonia phylotypes (T1, T2 and T6) based only on their morphology and (2) a refined biogeographical distribution presented here supporting the putatively invasive character of phylotype T6. Results suggest that phylotype T6 is currently spreading out and supplanting autochthonous phylotypes T1 and T2 along the coastlines of the British Isles and northern France.
JM | Articles | Volume 40, issue 1
J. Micropalaeontol., 40, 61–74, 2021
https://doi.org/10.5194/jm-40-61-2021
J. Micropalaeontol., 40, 61–74, 2021
https://doi.org/10.5194/jm-40-61-2021

Research article 07 Jun 2021

Research article | 07 Jun 2021

Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition

Julien Richirt et al.

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Cited articles

Alve, E.: Benthic foraminiferal responses to estuarine pollution; a review, J. Foramin. Res., 25, 190–203, https://doi.org/10.2113/gsjfr.25.3.190, 1995. 
Alve, E. and Goldstein, S. T.: Dispersal, survival and delayed growth of benthic foraminiferal propagules, J. Sea Res., 63, 36–51, https://doi.org/10.1016/j.seares.2009.09.003, 2010. 
Bailly Du Bois, P. and Dumas, F.: TRANSMER, hydrodynamic model for medium- and long-term simulation of radionuclides transfers in the English Channel and southern North Sea, Radioprotection, 40, S575–S580, https://doi.org/10.1051/radiopro:2005s1-084, 2005. 
Barnay, A., Ellien, C., Gentil, F., and Thiébaut, E.: A model study on variations in larval supply: are populations of the polychaete Owenia fusiformis in the English Channel open or closed?, Helgoland Mar. Res., 56, 229, https://doi.org/10.1007/s10152-002-0122-2, 2003. 
Bird, C., Schweizer, M., Roberts, A., Austin, W. E. N., Knudsen, K. L., Evans, K. M., Filipsson, H. L., Sayer, M. D. J., Geslin, E., and Darling, K. F.: The genetic diversity, morphology, biogeography, and taxonomic designations of Ammonia (Foraminifera) in the Northeast Atlantic, Mar. Micropaleosntol., https://doi.org/10.1016/j.marmicro.2019.02.001, 2020. 
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Short summary
The study presents (1) a validation of a method which was previously published allowing us to recognize different Ammonia phylotypes (T1, T2 and T6) based only on their morphology and (2) a refined biogeographical distribution presented here supporting the putatively invasive character of phylotype T6. Results suggest that phylotype T6 is currently spreading out and supplanting autochthonous phylotypes T1 and T2 along the coastlines of the British Isles and northern France.
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