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Author |
Mosbech Anders, Johansen Kasper, Bech Nikolaj, Lyngs Peter, Harding Ann, Egevang Carsten, Phillips Richard, Fort Jerome, |
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Title |
Inter-breeding movements of little auks Alle alle reveal a key post-breeding staging area in the Greenland Sea
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Type |
Journal Article |
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Year |
2012 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
35 |
Issue |
2 |
Pages |
305-311 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Seabirds are important components in marine ecosystems. However, knowledge of their ecology and spatial distribution during the non-breeding season is poor. More investigations during this critical period are required urgently, as marine environments are expected to be profoundly affected by climate change and human activities, with both direct and indirect consequences for marine top predators. Here, we studied the distribution of little auks ( Alle alle ), one of the most abundant seabird species worldwide. We found that after the breeding season, birds from East Greenland quickly travelled north-east to stay for several weeks within a restricted area in the Greenland Sea. Activity patterns indicated that flying behaviour was much reduced during this period, suggesting that this is the primary moulting region for little auks. Birds then performed a southerly migration to overwinter off Newfoundland. These preliminary results provide important information for the conservation of this species and emphasise the need for further studies at a larger spatial scale. |
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Programme |
388 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0722-4060 |
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Approved |
yes |
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Call Number |
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Serial |
3513 |
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Author |
Renault D, |
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Title |
Sea water transport and submersion tolerance as dispersal strategies for the invasive ground beetle Merizodus soledadinus (Carabidae)
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
0722-4060 |
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Volume |
34 |
Issue |
10 |
Pages |
1591-1595 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
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Programme |
136 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0722-4060 |
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Approved |
yes |
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Call Number |
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Serial |
3559 |
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Author |
Gastebois C, Viviant M, Guinet C, |
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Title |
Ontogeny of aquatic behaviours in Antarctic fur seal (Arctocephalus gazella) pups in relation to growth performances at Kerguelen Islands
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
34 |
Issue |
7 |
Pages |
1097-1103 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
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Programme |
109 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0722-4060 |
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yes |
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Call Number |
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Serial |
3256 |
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Author |
Jaffal A, Paris-Palacios S, Jolly S, Thailly A F, Delahaut L, Beall E, Roche H, Biagianti-Risbourg S, Betoulle S, |
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Title |
Cadmium and copper contents in a freshwater fish species (brook trout, Salvelinus fontinalis) from the subantarctic Kerguelen Islands
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
34 |
Issue |
3 |
Pages |
397 -409 |
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Keywords |
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Abstract |
The subantarctic Kerguelen Islands (49 degrees S, 70 degrees E) contain freshwaters among the most isolated in the world from direct human activities. Cadmium and copper concentrations were analyzed in muscle and liver tissues of 57 non-migratory brook trout (Salvelinus fontinalis) inhabiting the Sud River of Kerguelen Islands. The mean cadmium concentration in liver was 1.13 mu g/g dry wt, within the range of levels measured in liver of marine fish from the Southern Ocean. Muscular Cd levels (0.12 mu g/g dry wt) were roughly ten times higher than those measured in Kerguelen's marine fish species. Copper levels were very high in the two organs (62.27 mu g/g dry wt in liver and 3.02 mu g/g dry wt in muscle) compared to those detected in fish from the Southern Ocean. Regarding the seasonal trend, the highest Cu and Cd muscular levels were measured in fish at the end of the austral winter, whereas the highest hepatic levels were observed at the end of the austral summer. Moreover, hepatic cadmium levels were higher in females than in males. These results could be related to brook trout spawning physiological preparations and foraging behavior during the summer period. We provide here the first results about Cu and Cd levels in liver and muscle of a freshwater fish species in an insular subantarctic context. They are in agreement with the high cadmium contamination found in fish of the Southern Ocean.
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Programme |
409;1041 |
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Thesis |
Bachelor's thesis |
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ISSN |
0722-4060 |
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Approved |
yes |
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Call Number |
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Serial |
2620 |
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Author |
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Title |
Capture and blood sampling do not affect foraging behaviour, breeding success and return rate of a large seabird: the black-browed albatross |
Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
34 |
Issue |
3 |
Pages |
353-361 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
During the last decades, eco-physiological studies have usually relied on the collection of blood from wild organisms in order to obtain relevant physiological measures. However, accurate estimates of the impact of capture and blood collection on performances of Polar seabird species have rarely been conducted. We investigated for the first time the effects of a blood sampling process on subsequent foraging behaviour, reproductive performance and return rate of black-browed albatrosses ( Thalassarche melanophris ) at Kerguelen Islands. We did not find any evidence that the blood sampling process as conducted in our study had detrimental effects on the breeding or foraging strategies or performance of black-browed albatrosses. Because blood collection can be performed in several different ways, we recommend that eco-physiologists conduct pilot studies to test whether their blood sampling process affects the performances of their study species. |
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Programme |
109 |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0722-4060 |
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Approved |
yes |
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Call Number |
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Serial |
3425 |
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Author |
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Title |
Introduced black rats Rattus rattus on Ile de la Possession (Iles Crozet, Subantarctic): diet and trophic position in food webs
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
34 |
Issue |
2 |
Pages |
169-180 -180 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Rats introduced on islands can affect ecosystem structure and function by feeding on terrestrial plants and both marine and terrestrial animals. The diet and trophic position of Rattus rattus introduced on Ile de la Possession (Iles Crozet) was assessed from two sites, according to the presence or absence of a king penguin colony. We used three complementary assays: macroanalyses of the stomach, faecal microhistology, and stable isotope analyses of 15N/13C in liver. Near the rookery, spermatophytes contributed on average 50% (confidential interval: 2375) to the diet based on isotopes, mainly consisting in reproductive parts of Poa spp., Agrostis magellanica, and Cerastium fontanum identified in faeces. Terrestrial animal preys were represented by insects that contributed 25% (056) in isotopes, dominated in faeces by caterpillars of Pringleophaga spp. and adult weevils. Bird remains were found in faeces, forming 18% (630) of isotopes. Terrestrial earthworms contributed to 7% (021), with chaetae observed in faeces. On the other site, spermatophytes represented 62% (5173) of assimilated food in rats livers, mainly formed by Poaceae and Acaena magellanica, insects by caterpillars [24% (1039)], and terrestrial earthworms [13% (223)]. Our results suggest that rats, which were found at the top of terrestrial food chains, may have a direct role on a such simplified ecosystem, by preying on the most abundant and largest body-sized terrestrial invertebrates,e.g. the keystone species Pringleophaga spp., and by feeding on both reproductive and vegetative parts of autochthonous and introduced plants. The discrepancies and usefulness of employing both isotopes and faecal analyses are discussed. |
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Programme |
136 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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ISSN |
0722-4060 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
2671 |
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Author |
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Title |
Serological evidence for the presence of non-pathogenic rabbit haemorrhagic disease virus-like strains in rabbits (Oryctolagus cuniculus) of the Kerguelen archipelago |
Type |
Journal Article |
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Year |
2010 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
33 |
Issue |
7 |
Pages |
985-989 -989 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Antibodies raised against a Lagovirus were found in healthy rabbits Oryctolagus cuniculus sampled in 2003 and 2004 in the Kerguelen archipelago. The serological test we used enabled the detection of antibodies due to both pathogenic and non-pathogenic viruses related to the rabbit haemorrhagic disease virus (RHDV). The overall proportion of seropositive rabbits was 35% and differed between sites. Since previous studies have failed to detect antibodies raised against pathogenic RHDV strains, the antibodies detected in the present study were likely due to non-pathogenic strains. The interest of these strains circulating in the Kerguelen archipelago is that they have evolved independently of those detected in the other parts of the world and should derive from an ancestral RHDV precursor. Their characterization may help understanding the evolution of the virus and the emergence of the disease. |
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Programme |
279 |
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Springer Berlin / Heidelberg |
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0722-4060 |
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yes |
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516 |
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Author |
Van de Putte A.P., Van Houdt J.K.J., Maes G.E., Janko K., Koubbi P., Rock J. & F.A.M. Volckaert |
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Title |
Species identification in the trematomid familiy using nuclear genetic markers |
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Journal Article |
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Year |
2009 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
Polar Biol. |
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Volume |
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Issue |
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Pages |
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Programme |
1142 |
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0722-4060 |
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yes |
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Serial |
5944 |
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Author |
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Title |
Molecular surveillance for avian influenza A virus in king penguins (Aptenodytes patagonicus)
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Type |
Journal Article |
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Year |
2009 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
32 |
Issue |
4 |
Pages |
663-665 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
An investigation of the presence of influenza A virus has been conducted in king penguins ( Aptenodytes patagonicus ) at the Possession Island in the Crozet Archipelago, Antarctica, using a rapid molecular diagnostic method based on real-time polymerase chain reaction. No evidence of outbreak or positive viral infection of influenza A virus was found in this study. We however recommend the implementation of long-term surveillance in seabird populations of polar ecosystems to detect the potential introduction of exotic strains and potential existence of a local epidemiological cycle for avian influenza viruses. |
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Programme |
137 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0722-4060 |
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yes |
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Call Number |
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Serial |
2872 |
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Author |
Mazzei F, Ghigliotti L, Coutanceau Jean-Pierre, Detrich H, Prirodina V, Ozouf-Costaz C, Pisano E, |
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Title |
Chromosomal characteristics of the temperate notothenioid fish Eleginops maclovinus (Cuvier)
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Type |
Journal Article |
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Year |
2008 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
31 |
Issue |
5 |
Pages |
629-634 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
The Falklands mullet, Eleginops maclovinus , is the only modern representative of the Sub-Antarctic family Eleginopidae, suborder Notothenioidei. Based on specimens from the Falkland Islands/Islas Malvinas, the Magellan Straits, and the southern coast of Chile, we have established the specific karyotype by conventional cytogenetic methods and have mapped the chromosomal loci of the ribosomal genes by fluorescence in situ hybridization (FISH). With respect to the basal notothenioid family Bovichtidae and to the hypothetical basal condition of the suborder (diploid number = 48, fundamental number = 48), E. maclovinus displays a slightly derived karyotype (diploid number = 48, fundamental number = 54). In contrast to the bovichtids, the 45S and 5S ribosomal DNAs are co-localized to a single chromosome pair. Condensation of the ribosomal genes to a single locus is likely to represent an intermediate stage in the evolution of notothenioid karyology. Features unique to E. maclovinus (e.g., morphology of its large, rDNA-bearing chromosome pair) probably result from divergence during the long evolutionary isolation of the family. |
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Programme |
1124 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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0722-4060 |
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yes |
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Call Number |
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Serial |
2824 |
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