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Records |
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Author |
Noor Johnson, Matthew L Druckenmiller, Finn Danielsen, Peter L Pulsifer |
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Title |
The Use of Digital Platforms for Community-Based Monitoring |
Type |
Journal |
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Year |
2021 |
Publication |
BioScience |
Abbreviated Journal |
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Volume |
71 |
Issue |
5 |
Pages |
452-466 |
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Keywords |
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Abstract |
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Programme |
1090,1206 |
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Thesis |
Bachelor's thesis |
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ISSN |
0006-3568 |
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Approved |
yes |
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Call Number |
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Serial |
8248 |
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Author |
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Title |
The high diversity of Southern Ocean sea stars (Asteroidea) reveals original evolutionary pathways |
Type |
Journal |
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Year |
2021 |
Publication |
Progress in oceanography |
Abbreviated Journal |
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Volume |
190 |
Issue |
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Pages |
102472 |
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Keywords |
Antarctica Biodiversity COI mtDNA Echinodermata Evolution Phylogeography |
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Abstract |
Benthic life in the Southern Ocean (SO) features unique life history traits and species assemblages, but the origin and evolution of many of these taxonomic groups is still unclear. Sea stars (Asteroidea) are a diversified and abundant component of benthic ecosystems in the SO, in which they can play key ecological roles. Former studies suggest that the diversity of the entire class is still poorly known and underestimated, hampering the assessment of the origin and evolution of the class in the SO. In the present study, we analyse spatial patterns of SO sea star diversity using an occurrence database of ~14,000 entries. The biogeographic analysis is coupled with the exploration of an extensive molecular phylogeny based on over 4,400 specimen sequences to inform, support and/or question the observed diversity patterns. We show that the current taxonomy of SO asteroids needs revision and that their diversity has generally been overlooked and misinterpreted. Molecular results highlight the recent diversification of most studied taxa, at genus and species levels, which supports an evolutionary scenario referring to successive invasion and exchange events between the SO and adjacent regions, and clade diversification during periods of rapid environmental changes driven by the succession of glacial cycles. Our work advocates for employing, and endorsing the use of extensive genetic barcode libraries for biodiversity studies. |
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Programme |
1044,1124 |
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Thesis |
Bachelor's thesis |
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ISSN |
0079-6611 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
8183 |
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Type |
Journal |
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Year |
2021 |
Publication |
Marine pollution bulletin |
Abbreviated Journal |
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Volume |
169 |
Issue |
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Pages |
112559 |
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Keywords |
At-sea survey Frontal system Garbage patch Plastic litter Southern Indian Ocean |
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Abstract |
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Programme |
109 |
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Campaign |
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Thesis |
Bachelor's thesis |
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ISSN |
0025-326X |
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Approved |
yes |
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Call Number |
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Serial |
7939 |
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Author |
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Title |
North Atlantic winter cyclones starve seabirds |
Type |
Journal |
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Year |
2021 |
Publication |
Current Biology |
Abbreviated Journal |
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Volume |
31 |
Issue |
17 |
Pages |
3964-3971.e3 |
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Keywords |
at-sea distribution cyclones energy expenditure GLS tracking seabird migration seascape ecology |
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Abstract |
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Programme |
330,388 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0960-9822 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
8294 |
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Author |
Matteo Feltracco, Elena Barbaro, Clara J. M. Hoppe, Klara K. E. Wolf, Andrea Spolaor, Rose Layton, Christoph Keuschnig, Carlo Barbante, Andrea Gambaro, Catherine Larose |
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Title |
Airborne bacteria and particulate chemistry capture Phytoplankton bloom dynamics in an Arctic fjord |
Type |
Journal |
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Year |
2021 |
Publication |
Atmospheric Environment |
Abbreviated Journal |
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Volume |
256 |
Issue |
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Pages |
118458 |
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Keywords |
Air-to-sea exchanges Amino acids Arctic Atmospheric microorganisms Marine phytoplankton bloom |
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Abstract |
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Programme |
1192 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7963 |
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| Permanent link to this record |
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Author |
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Title |
How king penguins advertise their sexual maturity |
Type |
Journal |
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Year |
2021 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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Volume |
177 |
Issue |
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Pages |
253-267 |
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Keywords |
animal communication mate choice optimal response index ornamentation penguin sexual maturation vocalization |
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Abstract |
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Programme |
137,354 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Series Issue |
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Edition |
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ISSN |
0003-3472 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7949 |
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Author |
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Title |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
Type |
Journal |
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Year |
2021 |
Publication |
Marine Biology |
Abbreviated Journal |
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Volume |
168 |
Issue |
3 |
Pages |
27 |
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Keywords |
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Abstract |
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Programme |
109,394 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
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Place of Publication |
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Editor |
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Summary Language |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1432-1793 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7792 |
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Author |
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Title |
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Type |
Journal |
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Year |
2021 |
Publication |
Ecological Monographs |
Abbreviated Journal |
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Volume |
91 |
Issue |
3 |
Pages |
e01459 |
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Keywords |
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Abstract |
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Programme |
109 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Summary Language |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1557-7015 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
8210 |
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Author |
Mark A. Hindell, Clive R. McMahon, Ian Jonsen, Robert Harcourt, Fernando Arce, Christophe Guinet |
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Title |
Inter- and intrasex habitat partitioning in the highly dimorphic southern elephant seal |
Type |
Journal |
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Year |
2021 |
Publication |
Ecology and Evolution |
Abbreviated Journal |
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Volume |
11 |
Issue |
4 |
Pages |
1620-1633 |
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Keywords |
Antarctic Shelf foraging and diving behavior Kerguelen Plateau mid-year haul out predation risk Southern Ocean |
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Abstract |
Partitioning resources is a key mechanism for avoiding intraspecific competition and maximizing individual energy gain. However, in sexually dimorphic species it is difficult to discern if partitioning is due to competition or the different resource needs of morphologically distinct individuals. In the highly dimorphic southern elephant seal, there are intersexual differences in habitat use; at Iles Kerguelen, males predominantly use shelf waters, while females use deeper oceanic waters. There are equally marked intrasexual differences, with some males using the nearby Kerguelen Plateau, and others using the much more distant Antarctic continental shelf ( 2,000 km away). We used this combination of inter and intrasexual behavior to test two hypotheses regarding habitat partitioning in highly dimorphic species. (a) that intersexual differences in habitat use will not appear until the seals diverge in body size and (b) that some habitats have higher rates of energy return than others. In particular, that the Antarctic shelf would provide higher energy returns than the Kerguelen Shelf, to offset the greater cost of travel. We quantified the habitat use of 187 southern elephant seals (102 adult females and 85 subadult males). The seals in the two groups were the same size ( 2.4 m) removing the confounding effect of body size. We found that the intersexual differences in habitat use existed before the divergence in body size. Also, we found that the amount of energy gained was the same in all of the major habitats. This suggests that the use of shelf habitats by males is innate, and a trade-off between the need to access the large benthic prey available on shelf waters, against the higher risk of predation there. Intrasexual differences in habitat use are another trade-off; although there are fewer predators on the Antarctic shelf, it is subject to considerable interannual fluctuations in sea-ice extent. In contrast, the Kerguelen Plateau presents more consistent foraging opportunities, but contains higher levels of predation. Habitat partitioning in this highly dimorphic species is therefore the result of complex interplay of life history strategies, environmental conditions and predation pressure. |
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Programme |
109,1201 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Summary Language |
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Original Title |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2045-7758 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
8243 |
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| Permanent link to this record |
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Author |
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Title |
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Type |
Thesis |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
620 pp. |
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Keywords |
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Abstract |
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Programme |
688,1044 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6439 |
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