Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition
International audience Ammonia is one of the most widespread foraminiferal genera worldwide. Three phylotypes (Ammonia sp. T1, T2 and T6), commonly encountered in the northeast Atlantic, are usually associated with the morphospecies Ammonia tepida. The biogeographic distribution of these three types...
Published in: | Journal of Micropalaeontology |
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Main Authors: | , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674/document https://hal-insu.archives-ouvertes.fr/insu-03663674/file/jm-40-61-2021.pdf https://doi.org/10.5194/jm-40-61-2021 |
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Open Polar |
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Université du Littoral Côte d'Opale portail |
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ftunivlcoteopale |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Richirt, Julien Schweizer, Magali Mouret, Aurélia Quinchard, Sophie Saad, Salha A. Bouchet, Vincent M. P. Wade, Christopher M. Jorissen, Frans J. Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Ammonia is one of the most widespread foraminiferal genera worldwide. Three phylotypes (Ammonia sp. T1, T2 and T6), commonly encountered in the northeast Atlantic, are usually associated with the morphospecies Ammonia tepida. The biogeographic distribution of these three types was previously investigated in coastal environments around Great Britain based on genetic assignations. A new method was recently developed to recognize these three phylotypes based on morphological criteria (i.e. pore size and suture elevation on spiral side), avoiding the need to use molecular analyses to identify them. The results presented here allow us to validate the consistency of the morphometric determination method but also to define more precisely the pore size variability of each of the three phylotypes, which is a main criterion for their recognition. Moreover, these results, combined with earlier molecular and morphological data, enable us to refine the biogeographic distribution previously established by genetic analyses alone. The biogeographical distribution pattern presented here supports the putatively invasive character of Ammonia sp. T6, by suggesting that this phylotype is currently spreading out over large areas and is supplanting autochthonous phylotypes (T1 and T2) along the coastlines of the British Isles and northern France. In fact, only the southwest coast of England and Ireland and the northwest coast of France have not been colonized by Ammonia sp. T6 yet. Our results also suggest that within the areas colonized by phylotype T6, T2 may find refuges in the inner parts of estuaries. We further suggest that the absence of Ammonia sp. T6 in the western part of the English Channel may be explained by the general surface current circulation pattern, which impedes further expansion. The high reliability of the determination method of phylotypes T1, T2 and T6 based on morphology also allows us to quickly generate large datasets for sub-recent and fossil material. This new method will make it possible to gain an understanding of the ecological differences between the three phylotypes and of the historical changes in their distribution patterns (for example due to changing anthropogenic factors). Finally, it will allow us to confirm or invalidate the putative invasive character of phylotype T6. |
author2 |
Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université d'Angers (UA) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Centre National de la Recherche Scientifique (CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut national des sciences de l'Univers (INSU - CNRS) |
format |
Article in Journal/Newspaper |
author |
Richirt, Julien Schweizer, Magali Mouret, Aurélia Quinchard, Sophie Saad, Salha A. Bouchet, Vincent M. P. Wade, Christopher M. Jorissen, Frans J. |
author_facet |
Richirt, Julien Schweizer, Magali Mouret, Aurélia Quinchard, Sophie Saad, Salha A. Bouchet, Vincent M. P. Wade, Christopher M. Jorissen, Frans J. |
author_sort |
Richirt, Julien |
title |
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
title_short |
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
title_full |
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
title_fullStr |
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
title_full_unstemmed |
Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition |
title_sort |
biogeographic distribution of three phylotypes (t1, t2 and t6) of ammonia (foraminifera, rhizaria) around great britain: new insights from combined molecular and morphological recognition |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674/document https://hal-insu.archives-ouvertes.fr/insu-03663674/file/jm-40-61-2021.pdf https://doi.org/10.5194/jm-40-61-2021 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Journal of Micropalaeontology https://hal-insu.archives-ouvertes.fr/insu-03663674 Journal of Micropalaeontology, 2021, 40, pp.61-74. ⟨10.5194/jm-40-61-2021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/jm-40-61-2021 insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674/document https://hal-insu.archives-ouvertes.fr/insu-03663674/file/jm-40-61-2021.pdf BIBCODE: 2021JMicP.40.61R doi:10.5194/jm-40-61-2021 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/jm-40-61-2021 |
container_title |
Journal of Micropalaeontology |
container_volume |
40 |
container_issue |
1 |
container_start_page |
61 |
op_container_end_page |
74 |
_version_ |
1766143506443665408 |
spelling |
ftunivlcoteopale:oai:HAL:insu-03663674v1 2023-05-15T17:41:46+02:00 Biogeographic distribution of three phylotypes (T1, T2 and T6) of Ammonia (foraminifera, Rhizaria) around Great Britain: new insights from combined molecular and morphological recognition Richirt, Julien Schweizer, Magali Mouret, Aurélia Quinchard, Sophie Saad, Salha A. Bouchet, Vincent M. P. Wade, Christopher M. Jorissen, Frans J. Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université d'Angers (UA) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Centre National de la Recherche Scientifique (CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut national des sciences de l'Univers (INSU - CNRS) 2021 https://hal-insu.archives-ouvertes.fr/insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674/document https://hal-insu.archives-ouvertes.fr/insu-03663674/file/jm-40-61-2021.pdf https://doi.org/10.5194/jm-40-61-2021 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/jm-40-61-2021 insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674 https://hal-insu.archives-ouvertes.fr/insu-03663674/document https://hal-insu.archives-ouvertes.fr/insu-03663674/file/jm-40-61-2021.pdf BIBCODE: 2021JMicP.40.61R doi:10.5194/jm-40-61-2021 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess Journal of Micropalaeontology https://hal-insu.archives-ouvertes.fr/insu-03663674 Journal of Micropalaeontology, 2021, 40, pp.61-74. ⟨10.5194/jm-40-61-2021⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftunivlcoteopale https://doi.org/10.5194/jm-40-61-2021 2022-05-11T16:15:17Z International audience Ammonia is one of the most widespread foraminiferal genera worldwide. Three phylotypes (Ammonia sp. T1, T2 and T6), commonly encountered in the northeast Atlantic, are usually associated with the morphospecies Ammonia tepida. The biogeographic distribution of these three types was previously investigated in coastal environments around Great Britain based on genetic assignations. A new method was recently developed to recognize these three phylotypes based on morphological criteria (i.e. pore size and suture elevation on spiral side), avoiding the need to use molecular analyses to identify them. The results presented here allow us to validate the consistency of the morphometric determination method but also to define more precisely the pore size variability of each of the three phylotypes, which is a main criterion for their recognition. Moreover, these results, combined with earlier molecular and morphological data, enable us to refine the biogeographic distribution previously established by genetic analyses alone. The biogeographical distribution pattern presented here supports the putatively invasive character of Ammonia sp. T6, by suggesting that this phylotype is currently spreading out over large areas and is supplanting autochthonous phylotypes (T1 and T2) along the coastlines of the British Isles and northern France. In fact, only the southwest coast of England and Ireland and the northwest coast of France have not been colonized by Ammonia sp. T6 yet. Our results also suggest that within the areas colonized by phylotype T6, T2 may find refuges in the inner parts of estuaries. We further suggest that the absence of Ammonia sp. T6 in the western part of the English Channel may be explained by the general surface current circulation pattern, which impedes further expansion. The high reliability of the determination method of phylotypes T1, T2 and T6 based on morphology also allows us to quickly generate large datasets for sub-recent and fossil material. This new method will make it possible to gain an understanding of the ecological differences between the three phylotypes and of the historical changes in their distribution patterns (for example due to changing anthropogenic factors). Finally, it will allow us to confirm or invalidate the putative invasive character of phylotype T6. Article in Journal/Newspaper Northeast Atlantic Université du Littoral Côte d'Opale portail Journal of Micropalaeontology 40 1 61 74 |