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Observations on the feeding behaviour of the Antarctic Gammarid Eusirus perdentatus Chevreux, 1912 (Crustacea: Amphipoda) in aquaria
Springer Science and Business Media LLC - Tập 10 - Trang 359-364 - 1990
The feeding behaviour of adult Eusirus perdentatus was observed in aquaria. These observations and the analysis of gut contents of preserved specimens demonstrate that this species is a carnivorous predator feeding on polychaetes, amphipods and other small crustaceans. Apparently the localization and capture of prey in aquaria follows a fixed pattern.
Variation in bacterial, archaeal and fungal community structure and abundance in High Arctic tundra soil
Springer Science and Business Media LLC - - 2015
Arctic ecosystems are under pressure from climate change and atmospheric nitrogen (N) deposition. However, knowledge of the ecology of microbial communities and their responses to such challenges in Arctic tundra soil remain limited, despite the central role these organisms play for ecosystem functioning. We utilised a plot-scale experiment in High Arctic tundra on Svalbard to investigate short-te...... hiện toàn bộ
A method to study bacterioplankton community structure in Antarctic lakes
Springer Science and Business Media LLC - Tập 23 Số 5 - Trang 352-356 - 2000
Diet and body condition of spectacled eiders wintering in pack ice of the Bering Sea
Springer Science and Business Media LLC - Tập 26 - Trang 259-267 - 2003
Spectacled eiders (Somateria fischeri) winter among leads in the Bering Sea pack ice, where they dive 40–70 m for benthic prey. During the first icebreaker cruises into that area, esophagi of collected eiders contained only clams, mostly Nuculana radiata, with no trace of the once-dominant Macoma calcarea. Alternative prey used elsewhere (snails, amphipods, other bivalves) were available but not e...... hiện toàn bộ
Effects of warm acclimation on serum osmolality, cortisol and hematocrit levels in the Antarctic fish, Trematomus bernacchii
Springer Science and Business Media LLC - Tập 31 - Trang 991-997 - 2008
Antarctic fish, such as the Trematomus bernacchii, living at −1.9°C maintain a serum osmolality of around 600 mOsm kg−1, nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimation is due to stress. The purpose of this study was to determine, whether upon warm acclimation there w...... hiện toàn bộ
Microplankton succession in a SW Greenland tidewater glacial fjord influenced by coastal inflows and run-off from the Greenland Ice Sheet
Springer Science and Business Media LLC - Tập 38 - Trang 1515-1533 - 2015
Studies of annual successions and inter-annual variations in sub-Arctic and Arctic microplankton assemblages are required in order to understand the structure and function of marine ecosystems. This study depicts the microplankton (>20 μm) structure in a sub-Arctic tidewater glacial fjord system, SW Greenland. The descriptions are based on monthly net hauls collected between January 2006 and Decem...... hiện toàn bộ
Coprophagic behaviour of southern giant petrels (Macronectes giganteus) during breeding period
Springer Science and Business Media LLC - Tập 43 - Trang 2111-2116 - 2020
Southern giant petrels (Macronectes giganteus) are opportunistic generalists whose feeding strategies include hunting, scavenging and fishing. While seals are important for southern giant petrels as a source of carrion, we documented that live seals also provide feeding opportunities for southern giant petrels. We tracked breeding southern giant petrels from Harmony Point, Antarctica, during incub...... hiện toàn bộ
Structure of bryozoan communities in an Antarctic glacial fjord (Admiralty Bay, South Shetlands)
Springer Science and Business Media LLC - Tập 37 Số 5 - Trang 737-751 - 2014
Age at sexual maturity of males and timing of the mating season of polar bears (Ursus maritimus) in Greenland
Springer Science and Business Media LLC - Tập 25 Số 12 - Trang 878-883 - 2002
Microclimatic conditions, meltwater moistening, and the distributional pattern of Buellia frigida on rock in a southern continental Antarctic habitat
Springer Science and Business Media LLC - Tập 19 - Trang 101-106 - 1998
The importance of snowmelt as a source of moisture for the crustose lichen Buellia frigida in the early austral summer was investigated at Cape Geology, Granite Harbour, southern Victoria Land (77°01′S, 162°32′E). Surface and air temperatures and irradiance were recorded on the surface of a slightly inclined granite boulder for 5 weeks. Observations were made of lichen thallus hydration during a ...... hiện toàn bộ
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