Census of breeding seabirds in Vigur Island, Westfjords, Iceland in 2021

• Main Authors: Milesi-Gaches, David, Lhériau, Alexandre
• Other Authors: Auteur indépendant
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: vigur; birdlife; puffin; guillemot; fulmar; eider duck; tourism; wildlife; westfjords; Terns; Arctic; Ecology; marine ecology; Cormorants and Shags; oystercatchers; iceland; oiseaux; nature; tourisme; écologie; écologie marine; Islande; fjords de l'Ouest; macareux; guillemots à miroir; fulmars; cormorans; sternes arctiques; canards Eider; huîtriers pie; goélands; teista; fýla; dílaskarfa; silfur- og sílamáva; tjalda; lunda; kría; Ísland; Ísafjorður; Súðavík; fugl; dýralíf; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; [SDV.BID]Life Sciences [q-bio]/Biodiversity; [SDV.EE]Life Sciences [q-bio]/Ecology; environment; [SHS.ENVIR]Humanities and Social Sciences/Environmental studies; Fugla; Fulmar; Hreiður; Lunda; Vigur; Arctic tern; Arctique*; Black guillemot; Cepphus grylle; Fulmarus glacialis; Guillemot à miroir; Iceland; Sterna paradisaea; Sterne arctique
• Online Access: https://hal.science/hal-03913446; https://hal.science/hal-03913446/document; https://hal.science/hal-03913446/file/Milesi-Gaches%20and%20Lh%C3%A9riau,%202022.%20Census%20of%20breeding%20seabirds%20in%20Vigur%20Island,%20Westfjords,%20Iceland%20in%202021.%20Bird%20Census%20News.pdf

International audience The Vigur Island bird census focused on the main bird species found on the island: Black Guillemots Cepphus grylle, Northern Fulmars Fulmarus glacialis, Great Cormorants Phalacrocorax carbo, gulls Larus sp., Eurasian Oystercatchers Haematopus ostralegus, and Arctic Terns Sterna paradisaea. The Arctic Tern population was estimated by counting nests, using a transect line method. Due to the hatching of the eggs, the survey had to be stopped and only 60% of the colony area was covered. The results show that in summer 2021, Vigur hosted 1092 ± 246 SD Black Guillemot individuals, 28 ± 8 SD oystercatchers, 19 ± 8 SD Cormorants, 120 ± 34 SD Fulmars, and 58 ± 20 SD European Herring Gulls Larus argentatus and Lesser Black-backed Gulls Larus fuscus. We counted 440 occupied Arctic Tern nests, leading to an estimation of 880 breeding adults. Le recensement de l’avifaune de l’île de Vigur se focalise sur les principales espèces trouvées sur l’île : le Guillemot à miroir Cepphus grylle, le Fulmar boréal Fulmarus glacialis, le Grand Cormoran Phalacrocorax carbo, le Goéland Larus sp., l’Huîtrier pie Haematopus ostralegus, et la Sterne Arctique Sterna paradisaea. La population de Sternes Arctiques a été estimée par comptage des nids occupés, à l’aide de transects. En raison de l’éclosion des œufs, le comptage a dû être stoppé et seulement 60% de la colonie ont été couvert. Les résultats montrent que durant l’été 2021, l’île de Vigur a accueilli 1092 ± 246 (écart-type) Guillemots, 28 ± 8 Huîtriers, 19 ± 8 Cormorans, 120 ± 34 Fulmars, et 58 ± 20 goélands. Nous avons compté 440 nids occupé par des Sternes Arctiques, menant à une estimation de 880 adultes reproducteurs. Talning fugla í Vigur leggur áherslu á megintegundir fugla á eyjunni: Teistur Cepphus grylle, Fýla Fulmarus glacialis, Dílaskarfa Phalacrocorax carbo, Máva Larus sp., Tjalda Haematopus ostralegus og Kríur Sterna paradisaea. Fjöldi kría var áætlað með sniðatalningu, en talningarsvæðið var skipt niður í ferkantaðar einingar og hreiður talin ...