Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Duron Q., Garcia-Iriarte O., Brescia F., Vidal Eric. (2017). Comparative effects of native frugivores and introduced rodents on seed germination in New-Caledonian rainforest plants. Biological Invasions, 19 (1), 351-363. ISSN 1387-3547

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1007/s10530-016-1284-1

En Libre Accès sur HAL https://hal.archives-ouvertes.fr/hal-01681563

Titre
Comparative effects of native frugivores and introduced rodents on seed germination in New-Caledonian rainforest plants
Année de publication2017
Type de documentArticle référencé dans le Web of Science WOS:000392187700025
AuteursDuron Q., Garcia-Iriarte O., Brescia F., Vidal Eric.
SourceBiological Invasions, 2017, 19 (1), p. 351-363. ISSN 1387-3547
RésuméNative frugivores play an important role in native plant community dynamics by participating in seed dispersal. Today many island forests are invaded by introduced omnivores, such as rats, but their role in dispersing native plants is still little known. Here, we evaluated whether native seeds from New-Caledonian rainforests can germinate after passing through an invasive rat digestive tract and compared seed germinability and germination time between seeds ingested by invasive rats and native frugivores. We offered native fruits of Ficus racemigera and Freycinetia sulcata to the rats Rattus rattus and R. exulans, three flying foxes Pteropus spp. and the pigeon Ducula goliath. Our results showed that seeds can germinate after passing through an invasive rat digestive tract, and suggest that rats can disperse seeds of both plant species. However, invasive rats may be less efficient than native frugivores, as more seeds were destroyed when passing through rat digestive tracts than through native frugivores, and because germinability was lower and germination time was longer for seeds passing through invasive rats than through native frugivores. The reduced efficiency of rats may result from their generalized diet, the structure of their digestive tract, and/or their feeding behavior. In New-Caledonian rainforests, dispersal services on both plant species are likely well fulfilled by flying foxes and Ducula pigeons, but rats do not seem to be as efficient dispersers. Consequently, management measures to protect native frugivores should help to conserve seed dispersal services.
Plan de classementEtudes, transformation, conservation du milieu naturel [082] ; Sciences du monde végétal [076] ; Sciences du monde animal [080]
Descr. géo.NOUVELLE CALEDONIE
LocalisationFonds IRD [F B010068894]
Identifiant IRDfdi:010068894
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010068894

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito