Long-tailed Duck (Clangula hyemalis) ecology: insights from the Russian literature. Part 2: European part of the Russian breeding range

Loshchagina, Julia; Vardeh, Sandra; Глазов, П.М.; Pollet, Ingrid L.; Quillfeldt, Petra

doi:10.1007/s00300-019-02595-0

Cited by 5 publications

(6 citation statements)

References 9 publications

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“…Small proportions of the flyway population winter outside the Baltic in coastal waters off Norway and the Kola Peninsula (Heggøy and Shimmings 2016), and a few birds stay in ice-free parts of the White Sea (Loshchagina et al 2019;Karwinkel et al 2020). Our present study is the second to find one female from Kolguev wintering in the White Sea, the previous being Karwinkel et al (2020).…”

Section: Winteringmentioning

confidence: 46%

“…Moulting flocks are found throughout the breeding range and may include thousands of birds (Petersen and Savard 2015;Savard and Petersen 2015). Such flocks are also found in many coastal waters along the Russian Arctic coast from the Barents Sea to Eastern Siberia (Loshchagina et al 2019;Sokolov et al 2019).…”

Section: Moultingmentioning

confidence: 88%

“…Long-tailed Ducks Clangula hyemalis, have a circumpolar distribution (North America, Greenland, Iceland, Fennoscandia, and Russia) and breed in tundra habitats of the high Arctic and the arctic-alpine zone. The breeding biology in the Russian part of its range has been reviewed recently (Loshchagina et al 2019;Sokolov et al 2019). Across the breeding range, Long-tailed Ducks breed from late May, and most males leave the females soon after the start of incubation, in late June or July to gather in moulting flocks.…”

Section: Introductionmentioning

confidence: 99%

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Year-round movements of Long-tailed Ducks Clangula hyemalis from Kolguev Island, Barents Sea

Quillfeldt

Morkūnas

Kruckenberg³

et al. 2021

Polar Biol

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Arctic birds migrating southwards face a multitude of challenges such as habitat loss, pollution, overexploitation of food resources and climate change impacts. Long-tailed Duck winter populations in the Baltic Sea have declined in recent decades. However, precise spatial data are lacking, especially from males. Thus, we aimed to identify the wintering grounds, timing of migration and stopover sites of males and females. We studied spatiotemporal distribution patterns of eight male and five female Long-tailed Ducks using implanted ARGOS satellite transmitters. Birds were tagged in the breeding season on Kolguev Island, Russia. After the breeding period, Long-tailed Ducks from Kolguev used three main post-breeding areas: most males undertook long distance eastward post-breeding migration to areas around the Yamal and Gydan peninsulas, while one male and four females moved short to the southeast coast of Kolguev, and one female moved to Mezhdusharsky Island in the Novaya Zemlya Archipelago. Autumn migration included stopover sites in the White Sea, Lake Ladoga, the Gulf of Finland and the Gulf of Riga, and all birds except one spent the winter in the southern part of the Baltic Sea, from the Pomeranian coast and Hoburgs bank to the Gulf of Finland. Only one female stayed in the White Sea for the winter. All but one bird used the White Sea as a stopover site in May, suggesting that this area is of special importance.

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Section: Winteringmentioning

confidence: 46%

Section: Moultingmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Year-round movements of Long-tailed Ducks Clangula hyemalis from Kolguev Island, Barents Sea

Quillfeldt

Morkūnas

Kruckenberg³

et al. 2021

Polar Biol

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“…The Baltic Sea is an important wintering site for Longtailed Ducks breeding in the Russian Arctic, west of the Taimyr Peninsula (Loshchagina et al 2019, Karwinkel et al 2020, Quillfeldt et al 2021. Long-tailed Ducks breeding east of the Taimyr Peninsula are assumed not to winter in the Baltic Sea but rather to the east along the Russian and East Asian coasts.…”

Section: Study Populationmentioning

confidence: 99%

Age and sex ratios of wintering Long-tailed Ducks Clangula hyemalis can be determined by analysis of photos of flying flocks at sea: A method description

Larsson

2023

Ornis Svec

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The West Siberian/North European population of Long-tailed Duck Clangula hyemalis that breeds in Fennoscandia and Northwestern Russia, and winters in the Baltic Sea, has declined by at least 65% since the 1990s and is classified as globally vulnerable. To propose effective management actions to stop the decline, knowledge about demographic parameters is required. A photo survey method by which it is possible, in winter, to collect data on sex ratios and production of first-winter birds is presented here. The plumage traits and bill patterns, which are detectable in photos taken at a distance, are described. The traits can be used to discriminate between three categories of birds: adult males, first-winter males, and females. To extrapolate results from several photo surveys and obtain population-wide estimates of demographic parameters, knowledge about non-random distributions of different bird categories is needed. It was found that different age and sex categories were distributed differently across flocks of different sizes. The required sample sizes and the possible constraints and biases related to the photo survey method are discussed.

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“…Recorded numbers of bycaught seabirds in Lithuanian small-scale fisheries(2015)(2016)(2017)(2018)(2019)(2020).…”

mentioning

confidence: 99%

Seabird bycatch in a Baltic coastal gillnet fishery is orders of magnitude larger than official reports

Morkūnas¹,

Oppel²,

Bružas³

et al. 2022

ACE

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Bycatch, or the incidental capture of non-target species in fisheries, has been identified as one of the major threats affecting seabird populations worldwide. In the Baltic Sea, a globally important area for wintering seabirds, bycatch in gillnets represents an important cause of human-induced mortality for seabird species whose populations have declined significantly in recent decades. Although countries are required by European law to report official bycatch data, a lack of data on bycatch in small-scale fisheries impedes an assessment of the contribution of bycatch to declines of seabird populations. This study presents data on the total seabird bycatch in the small-scale coastal fishery for an entire country, Lithuania, in the southeastern Baltic Sea, during the 2015-2020 winter period. An average of 19.3% of the total fishing effort in net-meter days (15.5% of fishing days) were observed each winter season, resulting in observations of 909 bycaught birds from 15 species. Two species composed two-thirds of the total bycatch, Long-tailed Duck (Clangula hyemalis; 42.1%) and Velvet Scoter (Melanitta fusca; 35.4%). Bycatch composition varied with depth, with the majority of bycatch occurring in nets set at depths ≤ 10 m. Adult males dominated the bycatch of benthivorous sea ducks, whereas adult females composed the majority of piscivorous birds caught. Low numbers of juveniles in the bycatch may indicate different wintering sites for young birds. We estimate that between 1500 and 3000 seabirds were bycaught annually in the Lithuanian small-scale coastal fishery in the 2015-2020 period. Because this number is orders of magnitude larger than the bycatch officially reported by the Lithuanian authorities (six birds), our study highlights deficiencies in the country's current bycatch reporting. In contrast to official statistics based on inadequate data, the unintended capture of seabirds in gillnets remains high, despite financial investments to minimize the impact of fisheries on biodiversity. Les captures accidentelles d'oiseaux aquatiques par la pêche côtière au filet maillant en mer Baltique sont nettement plus nombreuses que ne le disent les rapports officielsRÉSUMÉ. Les captures accidentelles d'espèces non ciblées par la pêche ont été identifiées comme l'une des menaces majeures pour les populations d'oiseaux aquatiques du monde entier. Dans la mer Baltique, une zone mondialement importante pour les oiseaux aquatiques migrateurs, les prises accidentelles dans des filets maillants représentent une cause importante de mortalité induite par l'homme pour les espèces d'oiseaux aquatiques dont les populations ont nettement décliné depuis plusieurs décennies. Même si les pays sont tenus par la loi européenne de rapporter les données officielles de prises accidentelles, un manque de données sur les captures accidentelles dans les petites pêcheries nuit à l'évaluation de la contribution de ces prises au déclin des populations d'oiseaux aquatiques. Cette étude présente les données concernant le total des captures accide...

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Long-tailed Duck (Clangula hyemalis) ecology: insights from the Russian literature. Part 2: European part of the Russian breeding range

Cited by 5 publications

References 9 publications

Year-round movements of Long-tailed Ducks Clangula hyemalis from Kolguev Island, Barents Sea

Year-round movements of Long-tailed Ducks Clangula hyemalis from Kolguev Island, Barents Sea

Age and sex ratios of wintering Long-tailed Ducks Clangula hyemalis can be determined by analysis of photos of flying flocks at sea: A method description

Seabird bycatch in a Baltic coastal gillnet fishery is orders of magnitude larger than official reports

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