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Keywords: Antarctic
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Journal Articles
J Exp Biol (2021) 224 (7): jeb230797.
Published: 06 April 2021
...Simon Bahrndorff; Jannik M. S. Lauritzen; Mathias H. Sørensen; Natasja K. Noer; Torsten N. Kristensen ABSTRACT Terrestrial arthropods in the Arctic and Antarctic are exposed to extreme and variable temperatures, and climate change is predicted to be especially pronounced in these regions. Available...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (13): 2060–2065.
Published: 01 July 2016
... in the Antarctic nematode Panagrolaimus davidi , PhD thesis, University of Otago, 2015). However, trehalose concentrations are still relatively low compared with those found in other cold-tolerant organisms. Panagrolaimus sp. produces an ice active substance with strong recrystallization inhibition activity...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (8): 1093–1105.
Published: 15 April 2016
...Arnoldus Schytte Blix ABSTRACT This Review presents a broad overview of adaptations of truly Arctic and Antarctic mammals and birds to the challenges of polar life. The polar environment may be characterized by grisly cold, scarcity of food and darkness in winter, and lush conditions and continuous...
Journal Articles
J Exp Biol (2012) 215 (12): 1995–2002.
Published: 15 June 2012
... comparative framework. Clearly gigantism is relative, requiring comparison with other related taxa. In early studies of isopod and tanaid crustaceans, Wolff ( Wolff, 1956a ; Wolff, 1956b ) noted that the largest species within genera occurred in the Antarctic and the deep sea. Arnaud ( Arnaud, 1974...
Journal Articles
J Exp Biol (2008) 211 (5): 790–797.
Published: 01 March 2008
... metabolic density using embryos of the Antarctic sea urchin Sterechnius neumayeri , measured radial oxygen profiles at two temperatures, and compared our measurements to simulated radial oxygen profiles generated by the model. We parameterized the model by measuring the radius of the artificial masses...
Journal Articles
J Exp Biol (2006) 209 (22): 4503–4514.
Published: 15 November 2006
... does the Antarctic scallop, Adamussium colbecki , cope with the cold? Its shell mass is substantially reduced relative to that of temperate and tropical scallops, but this potential advantage is more than offset by a drastic reduction in adductor-muscle mass. By contrast, A. colbecki 's abductin...
Journal Articles
J Exp Biol (2006) 209 (11): 2165–2169.
Published: 01 June 2006
... decade, much headway has been made in unravelling the variety of olfactory foraging strategies that Antarctic species employ, and it is becoming clearer that olfaction plays a key role in foraging, particularly for burrow nesting species. Now we are beginning to explore how these behaviours develop...
Journal Articles
J Exp Biol (2006) 209 (10): 1976–1987.
Published: 15 May 2006
...John S. Young; Lloyd S. Peck; Thomas Matheson SUMMARY To determine whether neuronal function in Antarctic crustaceans is adapted to the low and narrow range of temperatures at which these animals live, we have compared conduction velocities in the peripheral nervous systems of two temperate species...
Journal Articles
J Exp Biol (2003) 206 (6): 1011–1016.
Published: 15 March 2003
... Harpagifer species by cumulative S-phase labelling with 5-bromo-2′-deoxyuridine (BrdU). Harpagifer antarcticus is a stenothermal species from the Antarctic peninsula (experiencing temperatures of -2°C to +1°C) and Harpagifer bispinis is a eurythermal species from the Beagle Channel, Tierra del Fuego (living...
Journal Articles
J Exp Biol (2003) 206 (2): 215–221.
Published: 15 January 2003
...David A. Wharton; Gordon Goodall; Craig J. Marshall SUMMARY The relative importance of freezing tolerance and cryoprotective dehydration in the Antarctic nematode Panagrolaimus davidi has been investigated. If nucleation of the medium is initiated at a high subzero temperature (-1°C), the nematodes...
Journal Articles
J Exp Biol (1991) 158 (1): 355–368.
Published: 01 July 1991
... acclimation. For example, the frequency and duration of Key words: birds, Pygoscelis adeliae, hydrodynamics, swimming, drag, implantation devices, tastruments, telemetry, energy, respirometry, power, polar, Antarctic, metabolic rate. 356 B. CULIK AND R. P. WILSON foraging trips were significantly changed...
Journal Articles
J Exp Biol (1991) 155 (1): 629–641.
Published: 01 January 1991
...D. A. WHARTON; I. M. BROWN When free of surface water in air or liquid paraffin, the antarctic nematode Panagrolaimus davidi is freezing intolerant but avoids freezing by supercooling. Survival of long-term exposure is enhanced by sub-zero temperatures compared with controls maintained at 99...