Evolution of the terrestrial vertebrate diversity of Marie-Galante Island (French West-Indies) during the last 40 000 years
C. Bochaton
(1)
,
S. Bailon
(1, 2)
,
M. Gala
(3)
,
D. Cochard
(3)
,
A. Royer
(4)
,
E. Stoetzel
(2)
,
A. Lenoble
(3)
C. Bochaton
- Fonction : Auteur
- PersonId : 738177
- IdHAL : corentin-bochaton
- ORCID : 0000-0003-4954-0019
S. Bailon
- Fonction : Auteur
- PersonId : 176172
- IdHAL : salvador-bailon
- IdRef : 050822004
E. Stoetzel
- Fonction : Auteur
- PersonId : 176261
- IdHAL : emmanuelle-stoetzel
- ORCID : 0000-0002-2724-5994
- IdRef : 155636413
Résumé
Marie-Galante Island (Guadeloupe, French West-Indies) has recently been the object of several paleontological investigations in order to characterize the evolution of its terrestrial vertebrate paleobiodiversity during the last 40 000 years. This paper consists in a synthesis these recently obtained results obtained by crossed studies of several large vertebrate fossil assemblages (mammal, bird, squamate, and amphibian) collected in Late Pleistocene and Holocene deposits. Our work reveals a
previously inconspicuous now-extinct Pleistocene and Holocene vertebrate biodiversity. We observed that this past diversity was recently modified to become very different from what it is nowadays. Indeed, while a small number of extinction or extirpation events can be related to the Pleistocene-Holocene climatic transition, the faunal community of the island is nearly completely modified during the last millenaries. These modifications include the arrival of several exogenous taxa, and an extinction/extirpation rate of native species between 54% and 100% depending of taxa.
Our results suggest that human impact was the main factor driving the evolution of the island terrestrial faunal diversity. We also demonstrate a possible impact of Pre-Columbian human populations on the faunal diversity of Marie-Galante Island which however remains minor in respect to the overwhelming modifications possibly related to the European colonization and subsequent anthropization of the island.
Domaines
Archéologie et PréhistoireFormat du dépôt | Notice |
---|---|
Type de dépôt | Communication dans un congrès |
Titre |
en
Evolution of the terrestrial vertebrate diversity of Marie-Galante Island (French West-Indies) during the last 40 000 years
|
Résumé |
en
Marie-Galante Island (Guadeloupe, French West-Indies) has recently been the object of several paleontological investigations in order to characterize the evolution of its terrestrial vertebrate paleobiodiversity during the last 40 000 years. This paper consists in a synthesis these recently obtained results obtained by crossed studies of several large vertebrate fossil assemblages (mammal, bird, squamate, and amphibian) collected in Late Pleistocene and Holocene deposits. Our work reveals a
previously inconspicuous now-extinct Pleistocene and Holocene vertebrate biodiversity. We observed that this past diversity was recently modified to become very different from what it is nowadays. Indeed, while a small number of extinction or extirpation events can be related to the Pleistocene-Holocene climatic transition, the faunal community of the island is nearly completely modified during the last millenaries. These modifications include the arrival of several exogenous taxa, and an extinction/extirpation rate of native species between 54% and 100% depending of taxa.
Our results suggest that human impact was the main factor driving the evolution of the island terrestrial faunal diversity. We also demonstrate a possible impact of Pre-Columbian human populations on the faunal diversity of Marie-Galante Island which however remains minor in respect to the overwhelming modifications possibly related to the European colonization and subsequent anthropization of the island.
|
Auteur(s) |
C. Bochaton
1
, S. Bailon
1, 2
, M. Gala
3
, D. Cochard
3
, A. Royer
4
, E. Stoetzel
2
, A. Lenoble
3
1
AASPE -
Archéozoologie, archéobotanique : sociétés, pratiques et environnements
( 118105 )
- Muséum national d'Histoire naturelle - Case postale 56 - 55 rue Buffon - 75005 Paris
- France
2
HNHP -
Histoire naturelle de l'Homme préhistorique
( 121947 )
- Institut de Paléontologie Humaine - 1, rue René Panhard - 75013 Paris
- France
3
PACEA -
De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie
( 205557 )
- Université de Bordeaux - Bâtiment B8 - CS50023 - Allée Geoffroy-Saint-Hilaire - 33615 Pessac Cedex
- France
4
BGS -
Biogéosciences [UMR 6282]
( 182913 )
- Université de Bourgogne - 6 boulevard Gabriel - 21000 Dijon
- France
|
Langue du document |
Anglais
|
Vulgarisation |
Non
|
Date de production/écriture |
2018
|
Invité |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Actes |
Non
|
Date début congrès |
2018-07-09
|
Date fin congrès |
2018-07-13
|
Pays |
France
|
Ville |
Paris
|
URL du congrès ou éditeur |
https://ipc5.sciencesconf.org/
|
Titre du congrès |
5th International Palaeontological Congress (IPC5)
|
Organisateur du congrès |
|
Domaine(s) |
|
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