|
|
Charrassin J.B., Le Maho Y. & Bost C.B. (2002). Seasonal changes in the diving parameters of king penguins (Aptenodytes patagonicus). Mar. Biol., 141, 581–589.
|
|
|
|
Dentener F., Feichter J. & Jeuken A. (1999). Simulation of the transport of Rn222 using on-line and off-line global models at different horizontal resolutions:a detailled comparison with measurements. Tellus series a-dynamic meteorology and oceanography, 51B(3), 573–602.
|
|
|
|
Jouventin P., Mcgraw K. J., Morel M. & Célerier A. (2007). Dietary carotenoid supplementation affects orange beak but not foot coloration in Gentoo Penguins Pygoscelis papua. Waterbirds, 30, 573–578.
|
|
|
|
Lobinski R., Boutron C.F., Candelone J.P., Hong S., Szpunar F.C. & Adams F.C. (1993). The occurence of organolead compounds in Greenland snow during the 1945-1989 period..
Abstract: Allan R.J., Nriagu J.O. (eds), Heavy metals in the environment. Edinburgh, CEP Consultants
Programme: 280
|
|
|
|
Roscoe H.K., Squires J.A.C., Oldham D.J., Pommereau J.P. & Goutail F. (1994). Year round measurements of Ozone at 66°S with a visible spectrometer. Proc. Quad. Ozone Symp., NASA Conf. Pub., 3266, 569–572.
|
|
|
|
Ekaykin A.A., Lipenkov V.Y., Kuzmina I., Petit J.R., Masson-Delmotte V. & Johnsen S.J. (2005). The changes in isotope composition and accumulation of snow at Vostok station over the past 200 years. Annals of glaciology, 39, 569–575.
Abstract: Seventh International Symposium on Antarctic Glaciology
Programme: 355
|
|
|
|
VERREAULT J., VERBOVEN N., GABRIELSEN G., LETCHER R.J., CHASTEL O. (2008). Changes in prolactin in a highly organohalogen contaminated Arctic top predator seabird, the glaucous gull. Gen. Comp. Endocrinol., 156, 569–576.
Abstract: The factors influencing prolactin (PRL) variation in birds and in wildlife in general have rarely been investigated with respect to the physiological impacts of exposure to environmental contaminants. We investigated the associations between circulating baseline PRL levels and concentrations of eight persistent organohalogen contaminant (OHC) classes (i.e., major organochlorines and brominated flame retardants, and associated metabolic products) in blood (plasma) of free-ranging glaucous gulls (Larus hyperboreus), a top predator in the Norwegian Arctic, engaged in the process of incubation. We further examined whether plasma OHC concentrations were associated with the variation of PRL in glaucous gulls exposed to a standardized capture/restraint protocol. Plasma OHC concentrations in male glaucous gulls were 2-to 3-fold higher relative to females. Baseline PRL levels tended to be higher in females compared to males, although not significantly (p = 0.20). In both males and females, the 30-min capture/restraint protocol led on average to a 26% decrease in PRL levels, which resulted in a rate of PRL decrease of 0.76 ng/mL/min. The baseline PRL levels and the rate of decrease in PRL levels tended to vary negatively with plasma OHC concentrations in males, but not in females, although several of these associations did not adhere with the criterion of significance (a = 0.05). Present results suggest that in highly OHC-exposed male glaucous gulls, the control of PRL release may be affected by the direct or indirect modulating actions of OHCs and/or their metabolically derived products. We conclude that potentially OHC-mediated impact on PRL secretion in glaucous gulls (males) may be a contributing factor to the adverse effects observed on the reproductive behavior, development and population size of glaucous gulls breeding in the Norwegian Arctic.
Programme: 330
|
|
|
|
Desboeufs K.V., R. Losno, and J.L. Colin. (2003). Performance of inductively coupled plasma-multichannel based emission spectrometry in ultra-clean environment. Analytical and bioanalytical chemistry, 375, 567–573.
|
|
|
|
Cook, T.R.; Lescroël, A.; Tremblay, Y.; Bost, C.A. (2008). To breathe or not to breathe ? Optimal breathing, aerobic dive limit and oxygen stores in deep diving blue-eyed shags. Animal behaviour, 76, 565–576.
|
|
|
|
Massé G., Rowland S.J., Sicre M-A., Jacob J., Jansen E. & Belt, S.T. (2008). Abrupt climate changes for Iceland during the last millennium: evidence from high resolution sea ice reconstructions. Earth Planet. Sci. Lett., 269(3-4), 565–569.
Abstract: A high resolution account of Icelandic sea ice over the last millennium has been constructed using a novel proxy based on the presence in sediments of a biomarker (IP25) produced by sea ice algae. Comparison with historical sea ice records demonstrates a strong correlation between documented sea ice occurrences and the IP25 proxy. An excellent agreement is also observed between the IP25 record and a diatom-based sea surface temperature reconstruction obtained from the same core and the Crowley and Lowery Northern Hemisphere temperature reconstruction. Using this approach, we provide new historical sea ice data for periods where records are scarce or absent and evidence for abrupt changes to sea ice and/or climate conditions around Iceland during the Little Ice Age.
Programme: 452
|
|
