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Evolutionary history of the European free-tailed-bat, a tropical affinity species spanning across the Mediterranean Basin

Evolutionary history of the European free-tailed-bat, a tropical affinity species spanning across the Mediterranean Basin
Evolutionary history of the European free-tailed-bat, a tropical affinity species spanning across the Mediterranean Basin
The Mediterranean Basin is a global biodiversity hotspot, hosting a number of native species belonging to families that are found almost exclusively in tropical climates. Yet, whether or not these taxa were able to survive in the Mediterranean region during the Quaternary climatic oscillations remains unknown. Focusing on the European free‐tailed bat (Tadarida teniotis), we aimed to (a) identify potential ancient populations and glacial refugia; (b) determine the post‐glacial colonization routes across the Mediterranean; and (c) evaluate current population structure and demography. Mitochondrial and nuclear markers were used to understand T. teniotis evolutionary and demographic history. We show that T. teniotis is likely restricted to the Western Palearctic, with mitochondrial phylogeny suggesting a split between an Anatolian/Middle East clade and a European clade. Nuclear data pointed to three genetic populations, one of which is an isolated and highly differentiated group in the Canary Islands, another distributed across Iberia, Morocco, and France, and a third stretching from Italy to the east, with admixture following a pattern of isolation by distance. Evolutionary and demographic reconstruction supports a pre‐Last Glacial Maximum (LGM) colonization of Italy and the Anatolian/Middle East, while the remaining populations were colonized from Italy after the Younger Dryas. We also found support for demographic expansion following the Iberian colonization. The results show that during the LGM T. teniotis persisted in Mediterranean refugia and has subsequently expanded to its current circum‐Mediterranean range. Our findings raise questions regarding the physiological and ecological traits that enabled species with tropical affinities to survive in colder climates.
0947-5745
Amorim, F.
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Razgour, O.
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Matta, V.
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Lopes, S.
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Godinho, R.
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Ibáñez, C.
00483774-0a4f-400b-916b-4b588e9eeec9
Juste, J.
4df8b294-6c24-40fc-bde9-b5b726c12ccf
Rossiter, S.
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Beja, P.
3a8cc948-a69f-432e-a82a-6161e9563f01
Rebelo, H.
06e2970c-274e-484a-8637-ac13ebaca0a0
Amorim, F.
a659b617-1cc8-41fb-a05e-24761c58e486
Razgour, O.
107f4912-304a-44d5-99f8-cdf2a9ce6f14
Matta, V.
300c533a-855c-45e8-9790-9952dff4797a
Lopes, S.
880d2802-6484-4f29-8c3e-950c82bacd60
Godinho, R.
5ef450be-8cb7-45bd-81b2-9a68d11628ff
Ibáñez, C.
00483774-0a4f-400b-916b-4b588e9eeec9
Juste, J.
4df8b294-6c24-40fc-bde9-b5b726c12ccf
Rossiter, S.
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Beja, P.
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Rebelo, H.
06e2970c-274e-484a-8637-ac13ebaca0a0

Amorim, F., Razgour, O., Matta, V., Lopes, S., Godinho, R., Ibáñez, C., Juste, J., Rossiter, S., Beja, P. and Rebelo, H. (2019) Evolutionary history of the European free-tailed-bat, a tropical affinity species spanning across the Mediterranean Basin. Journal of Zoological Systematics and Evolutionary Research. (doi:10.1111/jzs.12326).

Record type: Article

Abstract

The Mediterranean Basin is a global biodiversity hotspot, hosting a number of native species belonging to families that are found almost exclusively in tropical climates. Yet, whether or not these taxa were able to survive in the Mediterranean region during the Quaternary climatic oscillations remains unknown. Focusing on the European free‐tailed bat (Tadarida teniotis), we aimed to (a) identify potential ancient populations and glacial refugia; (b) determine the post‐glacial colonization routes across the Mediterranean; and (c) evaluate current population structure and demography. Mitochondrial and nuclear markers were used to understand T. teniotis evolutionary and demographic history. We show that T. teniotis is likely restricted to the Western Palearctic, with mitochondrial phylogeny suggesting a split between an Anatolian/Middle East clade and a European clade. Nuclear data pointed to three genetic populations, one of which is an isolated and highly differentiated group in the Canary Islands, another distributed across Iberia, Morocco, and France, and a third stretching from Italy to the east, with admixture following a pattern of isolation by distance. Evolutionary and demographic reconstruction supports a pre‐Last Glacial Maximum (LGM) colonization of Italy and the Anatolian/Middle East, while the remaining populations were colonized from Italy after the Younger Dryas. We also found support for demographic expansion following the Iberian colonization. The results show that during the LGM T. teniotis persisted in Mediterranean refugia and has subsequently expanded to its current circum‐Mediterranean range. Our findings raise questions regarding the physiological and ecological traits that enabled species with tropical affinities to survive in colder climates.

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Accepted/In Press date: 20 June 2019
e-pub ahead of print date: 25 November 2019

Identifiers

Local EPrints ID: 432467
URI: http://eprints.soton.ac.uk/id/eprint/432467
ISSN: 0947-5745
PURE UUID: 232995ae-350e-4ddb-9683-8aa5b4056ee9
ORCID for O. Razgour: ORCID iD orcid.org/0000-0003-3186-0313

Catalogue record

Date deposited: 16 Jul 2019 16:30
Last modified: 26 Nov 2021 06:29

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Contributors

Author: F. Amorim
Author: O. Razgour ORCID iD
Author: V. Matta
Author: S. Lopes
Author: R. Godinho
Author: C. Ibáñez
Author: J. Juste
Author: S. Rossiter
Author: P. Beja
Author: H. Rebelo

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