Euphausia superba dominates in the diet of Adélie penguins feeding under fast sea-ice in the shelf areas of Enderby Land in summerSpringer Science and Business Media LLC - Tập 14 - Trang 429-432 - 1994
Yutaka Watanuki, Yoshihisa Mori, Yasuhiko Naito
Adélie penguins Pygoscelis adeliae in Enderby Land, Antarctica feed mainly on Euphausia superba during the chick rearing season in shelf areas where fast sea-ice remains: indicating that E. superba is abundant under the fast sea-ice in these areas. The shelf areas in Enderby Land, therefore, are unique since the previous studies of Adélie penguin diet in Ross Sea, Adélie Land and Prydz Bay show th...... hiện toàn bộ
Phytoplankton uptake of 15N and 14C in the Ross Sea during austral spring 1994Springer 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
An analysis of maximum body size and designation of size categories for notothenioid fishesSpringer Science and Business Media LLC - Tập 42 - Trang 1131-1145 - 2019
Joseph T. Eastman
There has been no comprehensive study of body size in notothenioid fishes. Therefore I evaluated maximum total length (TL) as an axis of the evolutionary radiation. Lengths are provided for 141 species that collectively range in maximum adult size from 5.7 cm (Harpagifer nybelini) to 225 cm (Dissostichus eleginoides), a 39-fold difference. For the 138 species analyzed, the mean length is 33.5 cm a...... hiện toàn bộ
Rafting behaviour of albatrosses and petrels at South GeorgiaSpringer Science and Business Media LLC - Tập 46 - Trang 597-610 - 2023
Eleanor W. M. Kowalska O’Neil, Caitlin K. Frankish, Richard A. Phillips
Seabirds often spend time on the water in the vicinity of their breeding colonies at the start or end of foraging trips, which may be for bathing, social interaction, information transfer, or to reduce predation risk for small petrels that prefer to return to land in darkness. Although such behaviour (hereafter rafting) is common, there are few data on variation in its incidence or timing across s...... hiện toàn bộ
Using body mass dynamics to examine long-term habitat shifts of arctic-molting geese: evidence for ecological changeSpringer Science and Business Media LLC - Tập 34 - Trang 1751-1762 - 2011
Tyler L. Lewis, Paul L. Flint, Dirk V. Derksen, Joel A. Schmutz, Eric J. Taylor, Karen S. Bollinger
From 1976 onward, molting brant geese (Branta bernicla) within the Teshekpuk Lake Special Area, Alaska, shifted from inland, freshwater lakes toward coastal wetlands. Two hypotheses explained this redistribution: (1) ecological change: redistribution of molting brant reflects improvements in coastal foraging habitats, which have undergone a succession toward salt-tolerant plants due to increased c...... hiện toàn bộ