Demographic responses of Arctic seabirds to spring sea-ice variations - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Frontiers in Ecology and Evolution Année : 2023

Demographic responses of Arctic seabirds to spring sea-ice variations

Résumé

The Arctic experiences a rapid retreat of sea-ice, particularly in spring and summer, which may dramatically affect pagophilic species. In recent years, the decline of many Arctic seabird populations has raised concerns about the potential role of sea-ice habitats on their demography. Spring sea-ice drives the dynamics of phytoplankton blooms, the basis of Arctic food webs, and changes in spring seaice have the potential to affect the demographic parameters of seabirds through bottom-up processes. To better understand the effects of spring sea-ice on Arctic seabirds, we investigated the influence of spring sea-ice concentration on the survival and breeding success of three seabird species with contrasted foraging strategies in two Svalbard fjords in the high Arctic. We examined these relationships using long-term demographic data (2005-2021) from black-legged kittiwakes (Rissa tridactyla), Brünnich guillemots (Uria lomvia), and little auks (Alle alle). Spring sea-ice concentration was positively related to both the survival and breeding success of little auks, suggesting a higher sensitivity of this species to spring sea-ice. By contrast, the two other species were not particularly sensitive to changes in spring sea-ice, even though a potentially spurious negative effect on the breeding success of black-legged kittiwakes was observed. Overall, the study suggests that spring sea-ice may be involved in the demography of Arctic seabirds, but probably does not play a major role.
Fichier principal
Vignette du fichier
SFEE11_2023.pdf (1.8 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04071531 , version 1 (17-04-2023)

Identifiants

Citer

C. Sauser, F. Angelier, P. Blévin, O. Chastel, G.W. Gabrielsen, et al.. Demographic responses of Arctic seabirds to spring sea-ice variations. Frontiers in Ecology and Evolution, 2023, 11, pp.1107992. ⟨10.3389/fevo.2023.1107992⟩. ⟨hal-04071531⟩
22 Consultations
99 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More