Environmental DNA illuminates the dark diversity of sharks
Germain Boussarie
(1, 2)
,
Judith Bakker
,
Owen S. Wangensteen
,
Stefano Mariani
(3)
,
Lucas Bonnin
(4, 2)
,
Jean-Baptiste Juhel
(2)
,
Jeremy J. Kiszka
(5)
,
Michel Kulbicki
(6)
,
Stephanie Manel
(7)
,
William D. Robbins
,
Laurent Vigliola
(8)
,
David Mouillot
(9, 2)
1
LabEX CORAIL -
Laboratoire d'Excellence CORAIL
2 UMR MARBEC - MARine Biodiversity Exploitation and Conservation
3 UNIMORE - Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia
4 RDP - Reproduction et développement des plantes
5 Department of Biological Sciences [Miami]
6 IRD [France-Ouest] - Institut de Recherche pour le Développement
7 CEFE - Centre d’Ecologie Fonctionnelle et Evolutive
8 OOB - Observatoire océanologique de Banyuls
9 Ministère de l'Ecologie, du Développement Durable et de l'Energie
2 UMR MARBEC - MARine Biodiversity Exploitation and Conservation
3 UNIMORE - Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia
4 RDP - Reproduction et développement des plantes
5 Department of Biological Sciences [Miami]
6 IRD [France-Ouest] - Institut de Recherche pour le Développement
7 CEFE - Centre d’Ecologie Fonctionnelle et Evolutive
8 OOB - Observatoire océanologique de Banyuls
9 Ministère de l'Ecologie, du Développement Durable et de l'Energie
Judith Bakker
- Fonction : Auteur
Owen S. Wangensteen
- Fonction : Auteur
William D. Robbins
- Fonction : Auteur
Laurent Vigliola
- Fonction : Auteur
- PersonId : 758721
- ORCID : 0000-0003-4715-7470
- IdRef : 168145979
Résumé
In the era of \textquotedblleftAnthropocene defaunation,\textquotedblright large species are often no longer detected in habitats where they formerly occurred. However, it is unclear whether this apparent missing, or \textquotedblleftdark,\textquotedblright diversity of megafauna results from local species extirpations or from failure to detect elusive remaining individuals. We find that despite two orders of magnitude less sampling effort, environmental DNA (eDNA) detects 44% more shark species than traditional underwater visual censuses and baited videos across the New Caledonian archipelago (south-western Pacific). Furthermore, eDNA analysis reveals the presence of previously unobserved shark species in human-impacted areas. Overall, our results highlight a greater prevalence of sharks than described by traditional survey methods in both impacted and wilderness areas. This indicates an urgent need for large-scale eDNA assessments to improve monitoring of threatened and elusive megafauna. Finally, our findings emphasize the need for conservation efforts specifically geared toward the protection of elusive, residual populations.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Environmental DNA illuminates the dark diversity of sharks
|
Résumé |
en
In the era of \textquotedblleftAnthropocene defaunation,\textquotedblright large species are often no longer detected in habitats where they formerly occurred. However, it is unclear whether this apparent missing, or \textquotedblleftdark,\textquotedblright diversity of megafauna results from local species extirpations or from failure to detect elusive remaining individuals. We find that despite two orders of magnitude less sampling effort, environmental DNA (eDNA) detects 44% more shark species than traditional underwater visual censuses and baited videos across the New Caledonian archipelago (south-western Pacific). Furthermore, eDNA analysis reveals the presence of previously unobserved shark species in human-impacted areas. Overall, our results highlight a greater prevalence of sharks than described by traditional survey methods in both impacted and wilderness areas. This indicates an urgent need for large-scale eDNA assessments to improve monitoring of threatened and elusive megafauna. Finally, our findings emphasize the need for conservation efforts specifically geared toward the protection of elusive, residual populations.
|
Auteur(s) |
Germain Boussarie
1, 2
, Judith Bakker
, Owen S. Wangensteen
, Stefano Mariani
3
, Lucas Bonnin
4, 2
, Jean-Baptiste Juhel
2
, Jeremy J. Kiszka
5
, Michel Kulbicki
6
, Stephanie Manel
7
, William D. Robbins
, Laurent Vigliola
8
, David Mouillot
9, 2
1
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
2
UMR MARBEC -
MARine Biodiversity Exploitation and Conservation
( 422717 )
- Centre de Sète UMR MARBEC SETE - Avenue Jean Monnet - CS30171
34203 SETE CEDEX
- France
3
UNIMORE -
Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia
( 203954 )
- 41121 Modena / 42121 Reggio Emilia
- Italie
4
RDP -
Reproduction et développement des plantes
( 772 )
- bat. LR5 46 Allée d'Italie 69364 LYON CEDEX 07
- France
5
Department of Biological Sciences [Miami]
( 226437 )
- 11200 SW 8th Street Miami, FL 33199
- États-Unis
6
IRD [France-Ouest] -
Institut de Recherche pour le Développement
( 100685 )
- Centre IRD de Bretagne, Plouzané
- France
7
CEFE -
Centre d’Ecologie Fonctionnelle et Evolutive
( 171392 )
- 1919 route de Mende - 34293 Montpellier cedex 5
- France
8
OOB -
Observatoire océanologique de Banyuls
( 541803 )
- LABORATOIRE ARAGO BP 44 66651 BANYULS SUR MER CEDEX
- France
9
Ministère de l'Ecologie, du Développement Durable et de l'Energie
( 422327 )
|
Page/Identifiant |
1-8
|
Public visé |
Scientifique
|
Sous-type de document pour les Articles |
Research article
|
Licence |
Paternité - Pas d'utilisation commerciale
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2018-05
|
Volume |
4
|
Numéro |
5
|
Financement |
|
Domaine(s) |
|
DOI | 10.1126/sciadv.aap9661 |
ProdINRA | 469107 |
UT key WOS | 000432440600012 |
Origine :
Fichiers éditeurs autorisés sur une archive ouverte
Loading...