| Records |
| Author |
Camille Moreau, Christopher Mah, Antonio Agüera, Nadia Améziane, David Barnes, Guillaume Crokaert, Marc Eléaume, Huw Griffiths, Charlène Guillaumot, Lenaïg G. Hemery, Anna Jażdżewska, Quentin Jossart, Vladimir Laptikhovsky, Katrin Linse, Kate Neill, Chester Sands, Thomas Saucède, Stefano Schiaparelli, Jacek Siciński, Noémie Vasset, Bruno Danis |
| Title |
Antarctic and Sub-Antarctic Asteroidea database |
Type |
Journal |
| Year |
2018 |
Publication |
ZooKeys |
Abbreviated Journal |
|
| Volume |
747 |
Issue |
|
Pages |
141-156 |
| Keywords |
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| Abstract |
The present dataset is a compilation of georeferenced occurrences of asteroids (Echinodermata: Asteroidea) in the Southern Ocean. Occurrence data south of 45°S latitude were mined from various sources together with information regarding the taxonomy, the sampling source and sampling sites when available. Records from 1872 to 2016 were thoroughly checked to ensure the quality of a dataset that reaches a total of 13,840 occurrences from 4,580 unique sampling events. Information regarding the reproductive strategy (brooders vs. broadcasters) of 63 species is also made available. This dataset represents the most exhaustive occurrence database on Antarctic and Sub-Antarctic asteroids. |
| Programme |
1044 |
| Campaign |
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| Address |
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| Corporate Author |
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| Publisher |
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Place of Publication |
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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 |
1313-2970 |
ISBN  |
1313-2970 |
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 |
| Call Number |
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Serial |
7107 |
| Permanent link to this record |
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| Author |
Salomé Fabri-Ruiz, Thomas Saucède, Bruno Danis, Bruno David |
| Title |
Southern Ocean Echinoids database – An updated version of Antarctic, Sub-Antarctic and cold temperate echinoid database |
Type |
Journal |
| Year |
2017 |
Publication |
ZooKeys |
Abbreviated Journal |
|
| Volume |
697 |
Issue |
|
Pages |
1-20 |
| Keywords |
|
| Abstract |
This database includes over 7,100 georeferenced occurrence records of sea urchins (Echinodermata: Echinoidea) obtained from samples collected in the Southern Ocean (+180°W/+180°E; -35°/-78°S) during oceanographic cruises led over 150 years, from 1872 to 2015. Echinoids are common organisms of Southern Ocean benthic communities. A total of 201 species is recorded, which display contrasting depth ranges and distribution patterns across austral provinces and bioregions. Echinoid species show various ecological traits including different nutrition and reproductive strategies. Information on taxonomy, sampling sites, and sampling sources are also made available. Environmental descriptors that are relevant to echinoid ecology are also made available for the study area (-180°W/+180°E; -45°/-78°S) and for the following decades: 1955–1964, 1965–1974, 1975–1984, 1985–1994 and 1995–2012. They were compiled from different sources and transformed to the same grid cell resolution of 0.1° per pixel. We also provide future projections for environmental descriptors established based on the Bio-Oracle database (Tyberghein et al. 2012). |
| Programme |
1044 |
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Place of Publication |
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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 |
1313-2970 |
ISBN |
1313-2970 |
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 |
| Call Number |
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Serial |
7108 |
| Permanent link to this record |
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| Author |
Martín E. Timaná, Marc Lebouvier, Germinal Rouhan |
| Title |
Sagina hookeri Timaná, sp. nov. (Caryophyllaceae), a new endemic species for the flora of Île Amsterdam (French Southern and Antarctic Lands) |
Type |
Journal |
| Year |
2019 |
Publication |
Adansonia |
Abbreviated Journal |
|
| Volume |
41 |
Issue |
1 |
Pages |
17-23 |
| Keywords |
|
| Abstract |
A new endemic species of Sagina L., Sagina hookeri Timaná, sp. nov. (Caryophyllaceae) is described for the flora of Île Amsterdam, in the southern Indian Ocean (French Southern and Antarctic Lands). Differences between this taxon and S. diffusa (Hook.f.) Timaná (endemic to the neighboring island of Saint-Paul) and S. procumbens L. (introduced in several circum-austral islands) are discussed, and an identification key to those three Sagina species occurring in Saint-Paul and Amsterdam islands is presented. |
| Programme |
136 |
| Campaign |
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Place of Publication |
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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 |
1280-8571, 1639-4798 |
ISBN |
1280-8571, 1639-4798 |
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 |
| Call Number |
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Serial |
7506 |
| Permanent link to this record |
| |
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| |
| Author |
Armelle Decaulne, Najat Bhiry, Julien Lebrun, Samuel Veilleux, Denis Sarrazin |
| Title |
Geomorphic evidence of Holocene slope dynamics on the Canadian shield – a study from Lac à l’Eau-Claire, western Nunavik |
Type |
Journal |
| Year |
2018 |
Publication |
Écoscience |
Abbreviated Journal |
|
| Volume |
0 |
Issue |
0 |
Pages |
1-15 |
| Keywords |
éboulis gélifraction Nunavik scree slope dynamics Talus |
| Abstract |
We present the results of a study of the morphometric properties of a talus slope in subarctic Quebec (Nunavik) using field-based methods, including geomorphological, granulometric and plant distribution surveys, and statistical analyses. Slope processes are currently active, despite the limited altitudinal difference between the apical-to-distal parts of the slope and the imminent depletion of the debris supply. The near-rectilinear long profiles of the talus highlight the distribution of debris across the slope and demonstrate that free-fall of rock fragments is not the only process operating (redistribution is higher in the westernmost profile, which exhibits a clear concave shape). The spatial distribution of vegetation covering the screes highlights the recent age of parts of the talus, showing that present-day processes are still active, although limited. The short remaining apical rockwall highlights the shortage of debris following deglaciation, as debris are mostly supplied by freeze-thaw processes to the talus, and are then reworked by other processes which need to be better defined in subsequent research. |
| Programme |
1148 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
1195-6860 |
ISBN |
1195-6860 |
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 |
| Call Number |
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Serial |
6778 |
| Permanent link to this record |
| |
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| |
| Author |
Armelle Decaulne, Najat Bhiry, Julien Lebrun, Samuel Veilleux, Denis Sarrazin |
| Title |
Geomorphic evidence of Holocene slope dynamics on the Canadian shield – a study from Lac à l’Eau-Claire, western Nunavik |
Type |
Journal |
| Year |
2018 |
Publication |
Écoscience |
Abbreviated Journal |
|
| Volume |
25 |
Issue |
4 |
Pages |
343-357 |
| Keywords |
éboulis gélifraction Nunavik scree slope dynamics Talus |
| Abstract |
We present the results of a study of the morphometric properties of a talus slope in subarctic Quebec (Nunavik) using field-based methods, including geomorphological, granulometric and plant distribution surveys, and statistical analyses. Slope processes are currently active, despite the limited altitudinal difference between the apical-to-distal parts of the slope and the imminent depletion of the debris supply. The near-rectilinear long profiles of the talus highlight the distribution of debris across the slope and demonstrate that free-fall of rock fragments is not the only process operating (redistribution is higher in the westernmost profile, which exhibits a clear concave shape). The spatial distribution of vegetation covering the screes highlights the recent age of parts of the talus, showing that present-day processes are still active, although limited. The short remaining apical rockwall highlights the shortage of debris following deglaciation, as debris are mostly supplied by freeze-thaw processes to the talus, and are then reworked by other processes which need to be better defined in subsequent research. |
| Programme |
1148 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
1195-6860 |
ISBN |
1195-6860 |
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 |
| Call Number |
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Serial |
7428 |
| Permanent link to this record |
| |
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| |
| Author |
Alain Royer, Florent Domine, Alexandre Roy, Alexandre Langlois, Nicolas Marchand, Gautier Davesne |
| Title |
New northern snowpack classification linked to vegetation cover on a latitudinal mega-transect across northeastern Canada |
Type |
Journal |
| Year |
2021 |
Publication |
Écoscience |
Abbreviated Journal |
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| Volume |
|
Issue |
|
Pages |
1-18 |
| Keywords |
classification de la couverture de neige Gradient latitudinal interactions neige-végétation Latitudinal gradient propriétés de la neige snow cover classification snow–vegetation interaction snowpack properties |
| Abstract |
Changes in mass, extent, duration, and physical properties of snow are key elements for studying associated climate change feedbacks in northern regions. In this study, we analyzed snowpack physical properties along a ‘mega’ transect from 47°N to 83°N (4,000 km) in northeastern Canada, which includes marked transitions between ecozones from boreal forest to subarctic and arctic ecosystems. Our unique dataset of 391 detailed snowpits acquired over the last 20 years, complemented with snow data from weather stations, shows that snowpack properties such as snow water equivalent, snow depth, density, grain size and basal depth hoar fraction (DHF) are strongly linked to vegetation type. Based on these results, we propose an updated classification of snow types in three classes: boreal forest snow (47–58°N), tundra snow (58–74°N) and polar desert snow (74–83°N), which is more appropriate to the study area than the general north hemisphere classification commonly used. We also show that shrub presence along the transect contributes to a significant increase in DHF development which contributes most strongly to the thermal insulation properties of the snowpack. Overall, our analysis suggests that snow–vegetation interactions have a positive feedback effect on warming at northern latitudes. |
| Programme |
1042 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
1195-6860 |
ISBN |
1195-6860 |
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 |
| Call Number |
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Serial |
7971 |
| Permanent link to this record |
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| Author |
Damien Ertz, Alan Fryday, Imke Schmitt, Maryvonne Charrier, Magdalena Dudek, Martin Kukwa |
| Title |
Ochrolechia kerguelensis sp. nov. from the Southern Hemisphere and O. antarctica reinstated from the synonymy of O. parella |
Type |
Journal |
| Year |
2016 |
Publication |
Phytotaxa |
Abbreviated Journal |
|
| Volume |
280 |
Issue |
2 |
Pages |
129-140 |
| Keywords |
biodiversity Fungi Pertusariales subantarctic islands taxonomy |
| Abstract |
Ochrolechia kerguelensis Ertz & Kukwa is described as new to science from the subantarctic islands of Kerguelen. It is characterized by pruinose ascomata, usually 4-spored asci, large ascospores of 50–90 × 32–56 µm, the production of gyrophoric acid only in the apothecia and the lack of variolaric acid. A photobiont with cells containing orange guttules such as in trentepohlioid algae is recorded for the first time in the genus Ochrolechia, being present in O. austroamericana and O. kerguelensis. Ochrolechia antarctica is reinstated from the synonymy of O. parella and treated as a distinct species. Chemical and morphological differences between these taxa are discussed. Ochrolechia chilensis and O. deceptionis are treated as synonyms of O. antarctica. The phylogenetic placement of O. antarctica, O. austroamericana and O. kerguelensis is investigated using mtSSU rDNA sequences and a Bayesian analysis. A key to all fertile, saxicolous Ochrolechia species with a C+ red epihymenium occurring in the Southern Hemisphere is presented. |
| Programme |
136 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
1179-3163 |
ISBN |
1179-3163 |
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 |
| Call Number |
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Serial |
6614 |
| Permanent link to this record |
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| Author |
Damien Ertz, Roar S. Poulsen, Maryvonne Charrier, Ulrik Søchting |
| Title |
Taxonomy and phylogeny of the genus Steinera (Arctomiales, Arctomiaceae) in the subantarctic islands of Crozet and Kerguelen |
Type |
Journal |
| Year |
2017 |
Publication |
Phytotaxa |
Abbreviated Journal |
|
| Volume |
324 |
Issue |
3 |
Pages |
201-238 |
| Keywords |
biodiversity Henssenia Koerberiaceae Lichens Massalongia Peltigerales |
| Abstract |
The lichenized genus Steinera is revised for the archipelagos of Crozet and of Kerguelen, with a high level of endemism revealed. It is shown to represent a good example of convergent evolution between two different orders. Phylogenetic analyses using nuLSU, RPB1 and mtSSU sequences show that two different species groups can be recognized: Steinera s. str. belongs to the Arctomiaceae (Arctomiales) and is characterized notably by species having pluriseptate ascospores, and a second species group belongs to the Koerberiaceae (Peltigerales) and is characterized notably by simple ascospores sometimes having a plasma-bridge. The genus Henssenia is newly described to accommodate this latter group. The type species of Steinera is shown to have been erroneously treated in the past, with Steinera molybdoplaca being the type of Steinera and “S.” glaucella belonging to the genus Henssenia. A sorediate morph is recorded for S. molybdoplaca and the results confirmed using a 4-gene phylogeny, including nuITS sequences. Some species previously described in the genera Arctomia and Massalongia from the Southern Hemisphere are shown to belong to Steinera s. str. Five new species are described: Steinera isidiata Ertz & R.S. Poulsen, S. membranacea Ertz & R.S. Poulsen, S. lebouvieri Ertz, S. pannarioides Ertz & R.S. Poulsen and Henssenia subglaucella Ertz & R.S. Poulsen along with seven new combinations: Steinera intricata (Øvstedal) Ertz, S. latispora (Øvstedal) Ertz, S. olechiana (Alstrup & Søchting) Ertz & Søchting, S. subantarctica (Øvstedal) Ertz, Henssenia glaucella (Tuck.) Ertz, R.S. Poulsen & Søchting, H. radiata (P. James & Henssen) Ertz and H. werthii (Zahlbr.) Ertz, R.S. Poulsen & Søchting. An epitype is chosen for Henssenia glaucella and a neotype for H. werthii. “Steinera” symptychia has an isolated phylogenetic position in the Koerberiaceae and might represent a distinct, new genus. World-wide identification keys to the species of Henssenia and Steinera are provided. |
| Programme |
136 |
| Campaign |
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| Address |
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Place of Publication |
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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 |
1179-3163 |
ISBN |
1179-3163 |
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 |
| Call Number |
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Serial |
6752 |
| Permanent link to this record |
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| Author |
Barbora Chattová, Marc Lebouvier, Bart Van De Vijver |
| Title |
Morphological and taxonomical analysis of the terrestrial diatom genus Humidophila (Bacillariophyta) on Ile Amsterdam and Ile Saint-Paul (Southern Indian Ocean) |
Type |
Journal |
| Year |
2018 |
Publication |
Phytotaxa |
Abbreviated Journal |
|
| Volume |
336 |
Issue |
1 |
Pages |
28-42 |
| Keywords |
ALgae Bacillariophyta diatoms ecology Humidophila morphology new species |
| Abstract |
During a survey of the non-marine diatom flora of the volcanic islands, Ile Amsterdam and Ile Saint-Paul (southern Indian Ocean), seven species belonging to the terrestrial diatom genus Humidophila have been recorded. Apart from five previously known taxa (Humidophila contenta, H. crozetikerguelensis, H. gallica, H. brekkaensis, H. vidalii), two taxa could not be identified based on the currently available literature and are described as new to science: Humidophila amsterdamensis sp. nov. and Humidophila rouhaniana sp. nov. Detailed morphological descriptions of these taxa are given based on both light (LM) and scanning electron microscopy (SEM) observations. The morphological features of each taxon have been compared with similar species and notes on their ecology and associated diatom communities have been added. |
| Programme |
136 |
| Campaign |
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| Address |
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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 |
1179-3163 |
ISBN |
1179-3163 |
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 |
| Call Number |
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Serial |
7017 |
| Permanent link to this record |
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| Author |
Bart Van De Vijver, Barbora Chattová, Marc Lebouvier, Václav Houk |
| Title |
Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region |
Type |
Journal |
| Year |
2017 |
Publication |
Phytotaxa |
Abbreviated Journal |
|
| Volume |
332 |
Issue |
1 |
Pages |
22-30 |
| Keywords |
Algae centric diatoms Ferocia Melosira new genus sub-Antarctic Region |
| Abstract |
A new centric diatom genus, Ferocia Van de Vijver & Houk gen. nov. is described based on Melosira setosa Greville. Several samples collected in lava tunnels on Ile Amsterdam, a small isolated, volcanic island in the southern Indian Ocean where the latter taxon dominated the diatom flora, were investigated. The new genus is characterized by having heavily silicified, spherical frustules, connected into long chains by large, complex linking spines. Valves are dome-shaped with a high mantle with rounded to irregularly shaped areolae. Numerous small rimoportulae forming a marginal ring are present near the mantle edge. The cingulum is composed of a large number of narrow, open copulae. A second species, Ferocia ninae Van de Vijver & Houk sp. nov., is described from the nearby Crozet archipelago. Besides the typical features of the genus Ferocia, the rimoportulae in F. ninae are almost equidistant, the valves have a relatively low valve height and the spines are relatively small. Both F. ninae and F. setosa were found in shaded lava tunnels with a sparse moss vegetation. The two species are illustrated and discussed based on detailed LM and SEM observations. |
| Programme |
136 |
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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 |
1179-3163 |
ISBN |
1179-3163 |
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 |
| Call Number |
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Serial |
7026 |
| Permanent link to this record |
