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Statistical models of invertebrate distribution on Macquarie Island: a tool to assess climate change and local human impacts
Springer Science and Business Media LLC - - 1999
Kendi F. Davies, Brett A. Melbourne
Phytoplankton uptake of 15N and 14C in the Ross Sea during austral spring 1994
Springer Science and Business Media LLC - Tập 23 - Trang 495-502 - 2000
M. Lipizer, O. Mangoni, G. Catalano, V. Saggiomo
In spring 1994, within the ROSSMIZE research project, combined measurements of nitrogen (15N) and carbon (14C) uptake were made in the Ross Sea, passing from the McMurdo polynya to the ice-covered area in the north, in order to study the effect of environmental conditions (light availability, ice cover, vertical stability) on the coupling of N and C cycles. Nitrogen (nitrate and ammonium) and car...... hiện toàn bộ
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
Aqqalu Rosing‐Asvid, Erik W. Born, Michael C. S. Kingsley
Copepod assemblages in the water column and drifting sea-ice floes in the ice-edge region in the Indian Ocean sector of the Southern Ocean during the austral summer
Springer Science and Business Media LLC - Tập 45 - Trang 749-762 - 2022
Ryosuke Makabe, Takumi Hasegawa, Masayoshi Sano, Haruhiko Kashiwase, Masato Moteki
The ice-associated copepods Stephos longipes, Paralabidocera antarctica, and Drescheriella glacialis are the dominant species inhabiting Antarctic sea ice. They influence the pelagic ecosystem after being released into the water column when the ice melts from spring to summer in the marginal ice zone (MIZ), although less is known about those in the off-shelf region. We investigated the occurrence...... hiện toàn bộ
On the uptake of ornithogenic products by plants on the inland mountains of Dronning Maud Land, Antarctica, using stable isotopes
Springer Science and Business Media LLC - Tập 20 - Trang 107-111 - 1998
M. P. Cocks, D. A. Balfour, W. D. Stock
Breeding snow petrels (Pagodroma nivea) may be a major source of nutrients for the ecosystems on the inland nunataks (mountain outcrops) of continental Antarctica. To test this theory, the δ15N and δ13C values of soil and plants (moss, lichen and algae) from 11 nunataks with and without breeding snow petrels in northwestern Dronning Maud Land were compared. High δ15N values in all samples from nu...... hiện toàn bộ
Antarctic minke whales find ice gaps along the ice edge in foraging grounds of the Indo-Pacific sector (60° E and 140° E) of the Southern Ocean
Springer Science and Business Media LLC - Tập 43 - Trang 343-357 - 2020
Kenji Konishi, Tatsuya Isoda, Takeharu Bando, Shingo Minamikawa, Lars Kleivane
Antarctic minke whales Balaenoptera bonaerensis are rorquals that migrate to Antarctic waters to forage during the austral summer. Because the species frequents the edges of ice packs in summer, the potential impact of long-term physical environmental changes poses serious conservation concerns. Condition along the ice edge vary regionally, sometimes forming small ice free areas (ice gaps), and li...... hiện toàn bộ
Spread of Antarctic vegetation by the kelp gull: comparison of two maritime Antarctic regions
Springer Science and Business Media LLC - Tập 41 - Trang 1143-1155 - 2018
I. Parnikoza, A. Rozhok, P. Convey, M. Veselski, J. Esefeld, R. Ochyra, O. Mustafa, C. Braun, H.-U. Peter, J. Smykla, V. Kunakh, I. Kozeretska
In the present paper, we compare how the kelp gull, Larus dominicanus, utilizes various nest building materials, particularly vascular plants, bryophytes, lichens and other components, in the Fildes Peninsula area (King George Island) and on the Argentine Islands area. In both areas, nest material primarily consisted of the Antarctic hairgrass (Deschampsia antarctica), bryophytes, lichens, feather...... hiện toàn bộ
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years
Springer Science and Business Media LLC - Tập 39 - Trang 2065-2076 - 2015
Martin Paar, Andrey Voronkov, Haakon Hop, Thomas Brey, Inka Bartsch, Max Schwanitz, Christian Wiencke, Benoit Lebreton, Ragnhild Asmus, Harald Asmus
In Arctic macroalgal belt ecosystems, macrozoobenthic production is thought to be an important link between primary production and higher trophic levels. Macrozoobenthic biomass and secondary production were studied along transects (2.5–15 m depth) in the macroalgal belt at Hansneset in Kongsfjorden, Svalbard, from 2012 to 2013. At 2.5 m, the standing stock reached its maxima of 174.8 ± 54.4 g as...... hiện toàn bộ
Climate influences body condition and synchrony of barren-ground caribou abundance in Northern Canada
Springer Science and Business Media LLC - Tập 41 Số 5 - Trang 855-864 - 2018
Mallory, Conor D., Campbell, Mitch W., Boyce, Mark S.
Large-scale climate oscillations may contribute to the observed dramatic fluctuations and regional synchrony in Rangifer abundance. Here, we test this hypothesis using long-term abundance and physical condition datasets to investigate the relationships between broad climate patterns, summer-range quality, and population dynamics in three barren-ground caribou herds in northern Canada. We found tha...... hiện toàn bộ
A choanoflagellate in a hypersaline Antarctic lake
Springer Science and Business Media LLC - Tập 6 - Trang 71-73 - 1986
J. van den Hoff, P. D. Franzmann
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