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Author |
D. B. Green, S. Bestley, R. Trebilco, S. P. Corney, P. Lehodey, C. R. McMahon, C. Guinet, Mark A. Hindell |
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Title |
Modelled mid-trophic pelagic prey fields improve understanding of marine predator foraging behaviour |
Type |
Journal |
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Year |
2020 |
Publication |
Ecography |
Abbreviated Journal |
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Volume |
43 |
Issue |
7 |
Pages |
1014-1026 |
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Keywords  |
ecosystem modelling kerguelen plateau micronekton predators prey interaction southern elephant seal Southern Indian Ocean |
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Programme |
109,1201 |
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Thesis |
Bachelor's thesis |
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ISSN |
1600-0587 |
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yes |
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Call Number |
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Serial |
7688 |
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Author |
Rosing-Asvid A, Hedeholm R, Arendt K E, Fort J, Robertson G J, |
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Title |
Winter diet of the little auk (Alle alle) in the Northwest Atlantic
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Type |
Journal Article |
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Year |
2013 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
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Volume |
36 |
Issue |
11 |
Pages |
1601-1608 |
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Keywords |
Ecology, Feeding ecology, Greenland, Krill, Microbiology, Newfoundland, Oceanography, Plant Sciences, Themisto spp, Winter diet, Zoology, |
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Programme |
388 |
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Thesis |
Bachelor's thesis |
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ISSN |
0722-4060 |
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yes |
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Serial |
4449 |
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Title |
Species- and site-specific circulating bacterial DNA in Subantarctic sentinel mussels Aulacomya atra and Mytilus platensis |
Type |
Journal |
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Year |
2022 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
12 |
Issue |
1 |
Pages |
9547 |
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Keywords |
Ecology Microbial ecology |
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Abstract |
Impacts of climate changes are particularly severe in polar regions where warmer temperatures and reductions in sea-ice covers threaten the ecological integrity of marine coastal ecosystems. Because of their wide distribution and their ecological importance, mussels are currently used as sentinel organisms in monitoring programs of coastal ecosystems around the world. In the present study, we exploited the concept of liquid biopsy combined to a logistically friendly sampling method to study the hemolymphatic bacterial microbiome in two mussel species (Aulacomya atra and Mytilus platensis) in Kerguelen Islands, a remote Subantarctic volcanic archipelago. We found that the circulating microbiome signatures of both species differ significantly even though their share the same mussel beds. We also found that the microbiome differs significantly between sampling sites, often correlating with the particularity of the ecosystem. Predictive models also revealed that both species have distinct functional microbiota, and that the circulating microbiome of Aulacomya atra was more sensitive to changes induced by acute thermal stress when compared to Mytilus platensis. Taken together, our study suggests that defining circulating microbiome is a useful tool to assess the health status of marine ecosystems and to better understand the interactions between the sentinel species and their habitat. |
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1044 |
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ISSN |
2045-2322 |
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yes |
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Call Number |
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Serial |
8589 |
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Author |
Olivia Hicks, Akiko Kato, Frederic Angelier, Danuta M. Wisniewska, Catherine Hambly, John R. Speakman, Coline Marciau, Yan Ropert-Coudert |
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Title |
Acceleration predicts energy expenditure in a fat, flightless, diving bird |
Type |
Journal |
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Year |
2020 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
10 |
Issue |
1 |
Pages |
21493 |
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Keywords |
Ecology Ecophysiology |
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Abstract |
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Programme |
1091 |
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ISSN |
2045-2322 |
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yes |
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Call Number |
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Serial |
8765 |
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Author |
Convey Peter, Lebouvier Marc, |
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Title |
Environmental change and human impacts on terrestrial ecosystems of the sub-Antarctic islands between their discovery and the mid-twentieth century
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Type |
Journal Article |
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Year |
2009 |
Publication |
PAPERS AND PROCEEDINGS OF THE ROYAL SOCIETY OF TASMANIA |
Abbreviated Journal |
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Volume |
143 |
Issue |
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Pages |
33-44 |
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Keywords |
Ecology and Environment, |
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Abstract |
Sub-Antarctic islands share many similarities in their history of human interaction and impacts before the mid-twentieth century. Large impacts on land were associated with marine exploitation industries of sealing and whaling. Their onshore activities involved considerable construction and pollution in many accessible landing bays, inevitably destroying large areas of coastal terrestrial habitat. Considerable transfer of nutrients to terrestrial environments will have been associated with scavengers utilising large carrion supplies. Attempted establishment of agricultural industries, particularly the introduction of grazing mammals, took place on several islands and, although rarely proving economically viable, often resulted in the long-term creation of feral populations. These were accompanied by introductions of other alien vertebrates, plants and invertebrates to most sub-Antarctic islands, although precise records of introduction events, or subsequent biological studies in this period, largely do not exist. Thus, exploitation industries in this region inevitably led to considerable alterations and impacts to terrestrial ecosystems almost from the outset of human contact with the islands. In the absence of baseline ecological and biodiversity studies, the true magnitude of many of these impacts is difficult to assess, although their legacy continues to the present day. Indeed, the almost complete removal of fur seals may have allowed coastal vegetation to become more extensive and lush than hitherto, paradoxically now regarded as “typical” and threatened by recovery of seal populations.
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Programme |
136 |
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Publisher |
Royal Society of Tasmania |
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ISSN |
0080-4703 |
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yes |
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Call Number |
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Serial |
1818 |
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Author |
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Title |
Non-English languages enrich scientific knowledge: The example of economic costs of biological invasions |
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Journal |
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Year |
2021 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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Volume |
775 |
Issue |
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Pages |
144441 |
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Keywords |
Ecological bias InvaCost Knowledge gaps Management Native languages Stakeholders |
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Abstract |
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Programme |
136 |
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ISSN |
0048-9697 |
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Approved |
yes |
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Call Number |
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Serial |
7973 |
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Author |
Morten Frederiksen, Olivier Gilg, Glenn Yannic |
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Title |
Cross-icecap spring migration confirmed in a high-Arctic seabird, the Ivory Gull Pagophila eburnea |
Type |
Journal |
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Year |
2021 |
Publication |
Ibis |
Abbreviated Journal |
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Volume |
163 |
Issue |
2 |
Pages |
706-714 |
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Keywords |
ecological barrier Greenland icecap high-altitude migration |
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Abstract |
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Programme |
1210 |
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ISSN |
0019-1019 |
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Approved |
yes |
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Call Number |
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Serial |
6348 |
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Title |
Echo occurrence in the southern polar ionosphere for the SuperDARN Dome C East and Dome C North radars |
Type |
Journal |
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Year |
2021 |
Publication |
Polar Science |
Abbreviated Journal |
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Volume |
28 |
Issue |
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Pages |
100684 |
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Keywords |
Echo occurrence IRI model Polar cap radars Ray-tracing |
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Abstract |
In this paper, echo occurrence rates for the Dome C East (DCE) and the new Dome C North (DCN) radars are studied. We report the ionospheric and ground scatter echo occurrence rates for selected periods around equinoxes and solstices in the final part of the solar cycle XXIV. The occurrence maps built in Altitude Adjusted Corrected Geomagnetic latitude and Magnetic Local Time coordinates show peculiar patterns highly variable with season. The comparisons of the radar observations with the International Reference Ionosphere model electron density and with ray tracing simulations allow us to explain the major features of observed patterns in terms of electron density variations. The study shows the great potential of the DCE and DCN radar combination to the Super Dual Auroral Radar Network (SuperDARN) convection mapping in terms of monitoring key regions of the high-latitude ionosphere critical for understanding of the magnetospheric dynamics. |
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Programme |
312 |
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ISSN |
1873-9652 |
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yes |
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Call Number |
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Serial |
8020 |
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Author |
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Title |
A large new species of the genus Ptilocrinus (Echinodermata, Crinoidea, Hyocrinidae) from Antarctic seamounts
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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 |
9 |
Pages |
1385-1397- |
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Keywords |
Echinodermata, Stalked crinoids, Hyocrinidae, Ptilocrinus, Antarctica, Seamount, Ross sea, Kerguelen plateau, |
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Abstract |
Ptilocrinus amezianeae n. sp. is a new species of stalked crinoid attributed to the family Hyocrinidae. Forty-five specimens were collected from seamounts north of the Ross Sea, and one specimen from the Kerguelen Plateau at depths ranging from 450 to 1,680 m. The collection from Admiralty and Scott seamounts constitutes the first example of a hyocrinid population known both from in situ photographs and from numerous collected specimens ranging from small juvenile to large adult. Variation in theca and stalk articulation characters throughout ontogeny is congruent with the molecular data and indicates that all the specimens examined belong to a single species. Tegmen and pinnule architecture, brachial arrangement, and stalk articular facets indicate that Ptilocrinus amezianeae n. sp. has close affinities with P. clarki and P. pinnatus from the northeastern Pacific and displays the most derived characters among these three species. Two cases of true arm division into two unequal branches suggest that Ptilocrinus and Calamocrinus are closely related. The picture and video transects on Admiralty seamount show a patchy distribution of living specimens with patches of mean density ca. 2.6 individuals m-2. In situ photographs also document predation by a sea urchin and a sea star on tegmen and proximal arms. The COI gene sequences analyzed in 25 specimens from Admiralty and Scott seamounts display low pairwise distances, low nucleotidic diversity, and intermediate haplotype diversity. These results, together with disarticulated ossicles and attachment disks observed on in situ photographs, indicate that the population investigated here is in decline. |
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1044 |
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Springer-Verlag |
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ISSN |
0722-4060 |
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yes |
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Serial |
1538 |
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Title |
A serological survey of echinococcosis, toxocariasis and trichinellosis among rural inhabitants of Central Yakutia |
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Journal |
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Year |
2019 |
Publication |
International Journal of Circumpolar Health |
Abbreviated Journal |
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Volume |
78 |
Issue |
1 |
Pages |
1603550 |
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Keywords |
Echinococcosis seroepidemiology toxocariasis trichinellosis Yakutia |
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Abstract |
In 2018, a seroepidemiological survey was carried out in 3 ulus, or districts (Churapchinsky, Megino-Kangalassky and Ust-Aldansky) in Central Yakutia (Sakha Republic, Russian Federation) about 3 helminth zoonoses, namely, echinococcosis (alveolar or cystic), toxocariasis and trichinellosis. Ninety rural volunteers agreed to answer a questionnaire that inquired about demographic and environmental parameters along with food habits. Then they were asked to provide a venous blood sample. Serological investigations were carried out by enzyme-linked immunosorbent assay. Four subjects tested positive for echinococcosis, 1 for toxocariasis and 2 for trichinellosis. No demographic or environmental or dietary possible risk factor was found to be associated with these positive results. In conclusion, only echinococcosis and trichinellosis appeared to be in Yakutia as health threats among the 3 investigated zoonoses. |
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1038 |
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yes |
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Call Number |
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Serial |
7693 |
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