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Relevant bibliographies by topics / Steller's eider

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Academic literature on the topic 'Steller's eider'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Steller's eider"

1

Systad, Geir Helge, and Jan Ove Bustnes. "Coping with darkness and low temperatures: foraging strategies in Steller's eiders, Polysticta stelleri, wintering at high latitudes." Canadian Journal of Zoology 79, no. 3 (March 1, 2001): 402–6. http://dx.doi.org/10.1139/z00-213.

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To examine how Steller's eiders, Polysticta stelleri, wintering at 70°N cope with adverse winter conditions in terms of darkness and low temperatures, we studied their feeding behaviour during four periods between late autumn and early spring. Steller's eiders were most likely to feed during daylight and twilight, but they also fed during darkness. The incidence of feeding was highest at low tide, and there was a significant interaction between tidal cycle and winter period. Hence, the birds fed more intensively at low tide in midwinter (January) than during the other periods. Air temperatures were between 8 and 10°C lower in midwinter than during the other periods, and during this period the eiders also fed more by means of nondiving techniques (up-ending, surface feeding). The total estimated feeding time was highest in late autumn and midwinter (5.9 and 6.3 h were spent actively feeding, respectively) and lower in late winter and spring (5.1 and 4.6 h, respectively). Thus, as energy requirements increased as a result of low temperatures, Steller's eiders increased their feeding effort, but also reduced feeding costs by reducing diving depth. The results of this study suggest that the Steller's eider is behaviourally well adapted to survive winter at high latitudes at relatively low stress.

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2

Heggøy, Oddvar, Ingar Jostein Øien, and Tomas Aarvak. "Winter distribution of Steller's Eiders in the Varangerfjord, northern Norway." Ornis Norvegica 42 (February 22, 2019): 1–6. http://dx.doi.org/10.15845/on.v42i0.2581.

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Arctic warming and decreasing sea-ice cover along the Siberian coast in the Arctic Ocean leads to greater accessibility for operations such as oil drilling and traffic of tankers. This implies increasing risks for Steller’s Eider Polysticta stelleri wintering, moulting and staging along the coasts of the Varanger Peninsula, Norway. Steller’s Eiders were surveyed by monthly counts during winter and early spring 2016/2017 to investigate numbers and distribution throughout the winter. The highest number of wintering Steller’s Eiders was found in January, representing ~7 % of the European population. In February–April numbers were lower, but at a rather stable level. We found relatively little variation in distribution between months, although the birds were more evenly distributed along the coast later in winter. Mean flock size was significantly larger in January than in March and April. Feeding behaviour was exclusively observed in shallow water, generally at depths of up to 6 m. Areas of focus for an oil pollution emergency plan are pointed out and discussed.

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3

ŽYDELIS, Ramūnas. "PRELIMINARY STUDY OF STELLER'S EIDER POLYSTICTA STELLERI ECOLOGY AT PALANGA COAST, EASTERN BALTIC." Acta Zoologica Lituanica 6, no. 1 (January 1997): 107–11. http://dx.doi.org/10.1080/13921657.1997.10541403.

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4

KIRIHARA, Keisuke. "The southernmost record of Steller's Eider Polysticta stelleri in Japan from Tottori Prefecture." Japanese Journal of Ornithology 65, no. 2 (2016): 173–76. http://dx.doi.org/10.3838/jjo.65.173.

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5

FOX, A. D., and CARL MITCHELL. "Spring habitat use and feeding behaviour of Steller's Eider Polysticta stelleri in Varangerfjord, northern Norway." Ibis 139, no. 3 (July 1997): 542–48. http://dx.doi.org/10.1111/j.1474-919x.1997.tb04671.x.

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6

ŽYDELIS, RAMŪNAS, SVEIN-HÅKON LORENTSEN, ANTHONY D. FOX, ANDRES KURESOO, YURI KRASNOV, YURI GORYAEV, JAN OVE BUSTNES, MARTTI HARIO, LEIF NILSSON, and ANTRA STIPNIECE. "Recent changes in the status of Steller's Eider Polysticta stelleri wintering in Europe: a decline or redistribution?" Bird Conservation International 16, no. 3 (July 31, 2006): 217–36. http://dx.doi.org/10.1017/s0959270906000360.

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Steller's Eider Polysticta stelleri has a restricted arctic breeding range. The world population declined to c. 220,000 individuals in the late 1990s from an estimated 400,000–500,000 in the 1960s. The species has a limited global wintering distribution, occurring in marine habitats in north-east Europe, islands close to Kamchatka in Russia, and the eastern Aleutian Islands and south-west Alaska. European wintering numbers were estimated at 30,000–50,000 in the early 1990s, when the population was considered of favourable conservation status. Recent census data from the most important European wintering sites show annual declines of 8% in Norway since 1984, 9% in Estonia since 1994 and 22% in Lithuania since 1995, suggesting an overall 65% reduction in Europe. Counts in 1994 suggested that 30–50% of the European population wintered in Russia at that time. Current census data from Russia show similar declines along monitored sections of the Kola Peninsula wintering grounds since 1994. Accounting for trends in Russia, the current European wintering population could possibly stand at 10,000–15,000 individuals (a more than a 50% decline in 10 years), qualifying this population as Endangered under IUCN criteria. The changes in Baltic/Norwegian wintering numbers did not correlate with changes in the extent of ice-free marine waters in the Kola Peninsula/White Sea areas, but changes in annual numbers in Norway were correlated with winter North Atlantic Oscillation indices. Variation in annual numbers in the Baltic Sea correlated with projected number of juveniles among wintering birds. However, none of the possible causes discussed in this paper could fully explain the decline in Steller's Eider, confirming the need for comprehensive monitoring of the population throughout its winter range and for cohesive demographic monitoring to target effective conservation action.

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7

Bustnes, Jan Ove, and Geir Helge Systad. "Comparative Feeding Ecology of Steller's Eider and Long-Tailed Ducks in Winter." Waterbirds: The International Journal of Waterbird Biology 24, no. 3 (December 2001): 407. http://dx.doi.org/10.2307/1522072.

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8

AARVAK, TOMAS, INGAR JOSTEIN ØIEN, YURI V. KRASNOV, MARIA V. GAVRILO, and ANATOLY A. SHAVYKIN. "The European wintering population of Steller’s Eider Polysticta stelleri reassessed." Bird Conservation International 23, no. 3 (July 4, 2012): 337–43. http://dx.doi.org/10.1017/s0959270912000251.

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SummaryProlonged declines in the number of Steller’s Eider Polysticta stelleri wintering in Europe have raised concerns about the conservation status of the Western Palearctic population. Coordinated helicopter surveys of all known wintering areas in Norway and Russia and ground counts in the Baltic in 2009 found c.27,000 Steller’s Eiders, similar to numbers found during the last such survey in the mid-1990s. However, around 85% of the population now winters in Russia compared to 30–50% then. The reasons for this rapid shift in distribution are unknown but are likely linked to climate change. The continuing small population size, specialist feeding and restricted distribution of Steller’s Eider necessitate continued survey and research to track population changes and provide evidence for conservation management actions to safeguard the species.

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9

Robertson, Tim L., Elise G. DeCola, and Ellen W. Lance. "DESIGNING A GEOGRAPHIC RESPONSE STRATEGY TO PROTECT AN ENDANGERED SPECIES: THE NELSON LAGOON GRS PROJECT." International Oil Spill Conference Proceedings 2005, no. 1 (May 1, 2005): 403–6. http://dx.doi.org/10.7901/2169-3358-2005-1-403.

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ABSTRACT Geographic Response Strategies (GRS) have become an accepted industry standard for protecting environmentally sensitive areas. In Alaska, GRS have been developed for hundreds of sensitive sites. Typically, the GRS process involves an extensive site selection phase where resource agencies, stakeholder groups, and other interested parties prioritize potential GRS sites based on a number of factors, such as wildlife populations, cultural resources, human use, coastal habitat sensitivity, and feasibility of protecting the site from oil spill impacts. The process used to select and design a GRS for Nelson Lagoon has deviated from this established pattern. Nelson Lagoon, which is located on the north coast of the Alaska Peninsula and included in the Port Moller State Critical Habitat Area, is a biologically rich and ecologically sensitive area in its own right. But, the impetus to develop the Nelson Lagoon GRS arose from a single species: the threatened Steller's eider, which has been listed under the federal Endangered Species Act (ESA) since 1997. The Nelson Lagoon GRS project is unique not only because it has its roots in the ESA process, but because the GRS itself includes a risk-minimization component as well as a response strategy. This paper reports on the GRS development process at Nelson Lagoon, Alaska, and considers whether the model is applicable elsewhere in the United States.

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10

Bustnes, Jan O., and Kirill V. Galaktionov. "Evidence of a state-dependent trade-off between energy intake and parasite avoidance in Steller's eiders." Canadian Journal of Zoology 82, no. 10 (October 1, 2004): 1566–71. http://dx.doi.org/10.1139/z04-139.

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We examined the hypothesis that Steller's eiders, Polysticta stelleri (Pallas, 1769), in good body condition avoided nutritious and abundant prey that were intermediate hosts of acanthocephalans, while birds in poor condition accepted the long-term costs of parasitism to minimize the short-term risk of starvation. We predicted that the intensity of the acanthocephalan Polymorphus phippsi (Kostylev, 1922) should be positively related to the intake of intermediate hosts and that the intake of such prey should be negatively related to body condition. All Steller's eiders were infected (2–1142 parasites/bird). Only the intake of the amphipod Gammarus oceanicus (Segerstråle, 1947), a known intermediate host of P. phippsi, was significantly related to parasite intensity. Juvenile Steller's eiders were in poorer condition than adults and fed more on amphipods (44% vs. 9% of total biomass). On the contrary, adults preferred isopods (26% of total biomass vs. 12% for juveniles), which were less abundant than littoral amphipods but were not intermediate hosts of P. phippsi. Moreover, in juveniles there was a negative relationship between body condition and the proportion of amphipods in the diet. Hence, juveniles in poor body condition consumed potentially infected prey while adults and juveniles in good condition avoided such prey. The cost of avoiding littoral amphipods was probably a lower energy return per unit feeding effort.

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Dissertations / Theses on the topic "Steller's eider"

1

Deering, Michele Marie. "Steller's Eiders nesting in Barrow, Alaska : philopatry, individual nest site selection and nesting association with Pomarine Jaegers /." Connect to Digital dissertations. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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2

Steller, Daniel [Verfasser]. "Untersuchungen zum Einsatz von Antiseptika in der Behandlung akuter Wunden anhand einer evidenzbasierten Literaturanalyse, Auswertung eines Fragebogens und internationaler Symposiumdiskussion / Daniel Steller." Ulm : Universität Ulm. Medizinische Fakultät, 2015. http://d-nb.info/1078068054/34.

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Books on the topic "Steller's eider"

1

European Union action plans for eight priority bird species: Bittern (Botaurus stellaris), Ferruginous duck (Aythya nyroca), Steller's eider (Polysticta stelleri), Lammergeier (Gypaetus barbatus), Greater spotted eagle (Aquila clanga), Lesser spotted eagle (Aquila pomarina), Bonelli's eagle (Hieraaetus fasciatus), Little bustard (Tetrax tetrax). Luxembourg: Office for Official Publications of the European Communities, 2001.

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