A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes
Abigail E. Cahill
(1)
,
Sophie Dubois
(1)
,
Zoheir Bouzaza
(2)
,
D. Aurelle
(3)
,
Emilie Boissin
(4, 5)
,
Olivier Chabrol
(6)
,
Romain David
(1)
,
Emilie Egea
(1)
,
Jean-Baptiste Ledoux
(7, 8)
,
Bastien Merigot
(9, 10, 11, 12)
,
Alexandra Anh-Thu Weber
(1, 13)
,
Anne Chenuil
(1)
1
IMBE -
Institut méditerranéen de biodiversité et d'écologie marine et continentale
2 Université Abdelhamid Ibn Badis de Mostaganem
3 MIO - Institut méditerranéen d'océanologie
4 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
5 LabEX CORAIL - Laboratoire d'Excellence CORAIL
6 I2M - Institut de Mathématiques de Marseille
7 ICM - Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona]
8 CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental
9 UMR MARBEC - MARine Biodiversity Exploitation and Conservation
10 CNRS - Centre National de la Recherche Scientifique
11 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
12 IRD [France-Ouest] - Institut de Recherche pour le Développement
13 Unibas - Université de Bâle = University of Basel = Basel Universität
2 Université Abdelhamid Ibn Badis de Mostaganem
3 MIO - Institut méditerranéen d'océanologie
4 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
5 LabEX CORAIL - Laboratoire d'Excellence CORAIL
6 I2M - Institut de Mathématiques de Marseille
7 ICM - Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona]
8 CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental
9 UMR MARBEC - MARine Biodiversity Exploitation and Conservation
10 CNRS - Centre National de la Recherche Scientifique
11 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
12 IRD [France-Ouest] - Institut de Recherche pour le Développement
13 Unibas - Université de Bâle = University of Basel = Basel Universität
D. Aurelle
- Fonction : Auteur
- PersonId : 176239
- IdHAL : didieraurelle
- ORCID : 0000-0002-3922-7291
- IdRef : 153241489
Emilie Boissin
- Fonction : Auteur
- PersonId : 773657
- ORCID : 0000-0002-4110-790X
- IdRef : 131975765
Olivier Chabrol
- Fonction : Auteur
- PersonId : 21339
- IdHAL : olivier-chabrol
- ORCID : 0000-0002-8240-4820
- IdRef : 231544502
Romain David
- Fonction : Auteur
- PersonId : 11404
- IdHAL : romain-david
- ORCID : 0000-0003-4073-7456
- IdRef : 233679359
Alexandra Anh-Thu Weber
- Fonction : Auteur
- PersonId : 784748
- ORCID : 0000-0002-7980-388X
- IdRef : 190559136
Anne Chenuil
- Fonction : Auteur
- PersonId : 15766
- IdHAL : anne-chenuil
- ORCID : 0000-0001-8141-7147
- IdRef : 133649393
Résumé
Genetic diversity is crucial for species' maintenance and persistence, yet is often overlooked in conservation studies. Species diversity is more often reported due to practical constraints, but it is unknown if these measures of diversity are correlated. In marine invertebrates, adults are often sessile or sedentary and populations exchange genes via dispersal of gametes and larvae. Species with a larval period are expected to have more connected populations than those without larval dispersal. We assessed the relationship between measures of species and genetic diversity, and between dispersal ability and connectivity. We compiled data on genetic patterns and life history traits in nine species across five phyla. Sampling sites spanned 600km in the northwest Mediterranean Sea and focused on a 50-km area near Marseilles, France. Comparative population genetic approaches yielded three main results. (i) Species without larvae showed higher levels of genetic structure than species with free-living larvae, but the role of larval type (lecithotrophic or planktotrophic) was negligible. (ii) A narrow area around Marseilles, subject to offshore advection, limited genetic connectivity in most species. (iii) We identified sites with significant positive contributions to overall genetic diversity across all species, corresponding with areas near low human population densities. In contrast, high levels of human activity corresponded with a negative contribution to overall genetic diversity. Genetic diversity within species was positively and significantly linearly related to local species diversity. Our study suggests that local contribution to overall genetic diversity should be taken into account for future conservation strategies.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes
|
Résumé |
en
Genetic diversity is crucial for species' maintenance and persistence, yet is often overlooked in conservation studies. Species diversity is more often reported due to practical constraints, but it is unknown if these measures of diversity are correlated. In marine invertebrates, adults are often sessile or sedentary and populations exchange genes via dispersal of gametes and larvae. Species with a larval period are expected to have more connected populations than those without larval dispersal. We assessed the relationship between measures of species and genetic diversity, and between dispersal ability and connectivity. We compiled data on genetic patterns and life history traits in nine species across five phyla. Sampling sites spanned 600km in the northwest Mediterranean Sea and focused on a 50-km area near Marseilles, France. Comparative population genetic approaches yielded three main results. (i) Species without larvae showed higher levels of genetic structure than species with free-living larvae, but the role of larval type (lecithotrophic or planktotrophic) was negligible. (ii) A narrow area around Marseilles, subject to offshore advection, limited genetic connectivity in most species. (iii) We identified sites with significant positive contributions to overall genetic diversity across all species, corresponding with areas near low human population densities. In contrast, high levels of human activity corresponded with a negative contribution to overall genetic diversity. Genetic diversity within species was positively and significantly linearly related to local species diversity. Our study suggests that local contribution to overall genetic diversity should be taken into account for future conservation strategies.
|
Auteur(s) |
Abigail E. Cahill
1
, Sophie Dubois
1
, Zoheir Bouzaza
2
, D. Aurelle
3
, Emilie Boissin
4, 5
, Olivier Chabrol
6
, Romain David
1
, Emilie Egea
1
, Jean-Baptiste Ledoux
7, 8
, Bastien Merigot
9, 10, 11, 12
, Alexandra Anh-Thu Weber
1, 13
, Anne Chenuil
1
1
IMBE -
Institut méditerranéen de biodiversité et d'écologie marine et continentale
( 188653 )
- Aix Marseille Université, Campus Etoile, Faculté St-Jérôme case 421 Av. . escadrille Normandie-Niemen 13397 MARSEILLE CEDEX 20
- France
2
Université Abdelhamid Ibn Badis de Mostaganem
( 301048 )
- Monstaganem
- Algérie
3
MIO -
Institut méditerranéen d'océanologie
( 191652 )
- M.I.O. Institut Méditerranéen d'Océanologie
Bâtiment Méditerranée
163 Avenue de Luminy
13288 Marseille
- France
4
CRIOBE -
Centre de recherches insulaires et observatoire de l'environnement
( 107006 )
- BP 1013 Papetoiai 98729 PAPETOAI
- France
5
LabEX CORAIL -
Laboratoire d'Excellence CORAIL
( 209113 )
- 58 avenue Paul Alduy 66860 Perpignan CEDEX - Tél. : 04 30 19 23 32 - contact@labex-corail.fr
- France
6
I2M -
Institut de Mathématiques de Marseille
( 241321 )
- Centre de Mathématiques et Informatique (CMI)
Technopôle Château-Gombert
39, rue Frédéric Joliot Curie
13453 Marseille Cedex 13
- France
7
ICM -
Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona]
( 144521 )
- Passeig Maritim de la Barceloneta 37-49 Barcelona 08003
- Espagne
8
CIMAR/CIIMAR -
Centro Interdisciplinar de Investigação Marinha e Ambiental
( 249471 )
- Rua dos Bragas, 177, Porto 4050-123
- Portugal
9
UMR MARBEC -
MARine Biodiversity Exploitation and Conservation
( 422717 )
- Centre de Sète UMR MARBEC SETE - Avenue Jean Monnet - CS30171
34203 SETE CEDEX
- France
10
CNRS -
Centre National de la Recherche Scientifique
( 441569 )
- France
11
IFREMER -
Institut Français de Recherche pour l'Exploitation de la Mer
( 300022 )
- France
12
IRD [France-Ouest] -
Institut de Recherche pour le Développement
( 100685 )
- Centre IRD de Bretagne, Plouzané
- France
13
Unibas -
Université de Bâle = University of Basel = Basel Universität
( 149966 )
- Petersplatz 1, P. O. Box
4001 Basel
- Suisse
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2017
|
Date de publication électronique |
2017-10-31
|
Volume |
26
|
Numéro |
23
|
Page/Identifiant |
6563-6577
|
Domaine(s) |
|
Projet(s) ANR |
|
DOI | 10.1111/mec.14389 |
Origine :
Fichiers produits par l'(les) auteur(s)
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