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Author  |
Xavier José, Clarke M R, Magalhães M C, Stowasser G, Blanco C, Cherel Y, |
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Title |
Current status of using beaks to identify cephalopods : III International Workshop and training course on Cephalopod beaks , Faial island , Azores , April 2007
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Conference - International - Article with Reading Comitee |
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Year |
2007 |
Publication |
Arquipélago Life and Marine Sciences |
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Volume |
24 |
Issue |
April |
Pages |
41 -48 |
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Keywords |
18, campus de gambelas, cantab, ccmar, centro de ciências do, clarke, collections, e mail, erosion, fcma, jccx, josé xavier, malcolm r, mar do algarve, museum, net, portugal, pt, pt 8005 139 faro, rua do porto, são joão, species, sperm whale squid, taxonomy, trophic relationships, universidade do algarve, |
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Abstract |
The identification of cephalopods using their beaks is still a difficult technique. To increase our knowledge of this technique and stimulate a new generation of beak experts, the III International beak workshop and training course was organized in Faial, Azores Islands in 2007. We briefly review the activities of the workshop, including the identification procedure of lower beaks of cephalopods from predators with emphasis on cetaceans, seals, fish and seabirds; provision of basic knowledge to young researchers interested in the study area; identification of recent developments in beak research; and discussion of the main problematic issues. The families that need particular attention are Brachioteuthidae, Chiroteuthidae, Cranchiidae, Cycloteuthidae, Mastigoteuthidae, Octopoteuthidae, Promachoteuthidae, Onychoteuthidae (particularly the genus Walvisteuthis), Mastigoteuthidae and Cirroteuthidae. The stable isotopic signature of beaks is capable of revealing new trophic relationships and migrations. Future work should focus on: a) obtaining more cephalopod material from research cruises; b) promoting a close and continuous collaboration between beak experts and cephalopod taxonomists and; c) developing new, and updated, beak guides.
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109 |
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yes |
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1650 |
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Xavier José C, Allcock A Louise, Cherel Yves, Lipinski Marek R, Pierce Graham J, Rodhouse Paul GK, Rosa Rui, Shea Elizabeth K, Strugnell Jan M, Vidal Erica AG, Villanueva Roger, Ziegler Alexander, |
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Title |
Future challenges in cephalopod research
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Type |
Journal Article |
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Year |
2014 |
Publication |
Journal of the Marine Biological Association of the United Kingdom |
Abbreviated Journal |
J. Mar. Biolog. Assoc. U.K. |
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Volume |
95 |
Issue |
05 |
Pages |
999-1015 |
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Keywords |
aquaculture, cephalopods, climate change, fisheries, future research, genetics, morphology, trophic interactions, |
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109 |
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Cambridge University Press |
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0025-3154 |
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6171 |
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Xavier JC, Brandt A, Ropert-Coudert Y, Badhe R, Gutt J, Havermans C, Jones C, Costa ES, Lochte K, Schloss IR, Kennicutt MC II, Sutherland WJ |
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Title |
Future Challenges in Southern Ocean Ecology Research |
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Journal Article |
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2016 |
Publication |
Frontiers in Marine Science |
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3 |
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94 |
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Abstract |
The Southern Ocean is experiencing relentless change. The Antarctic and Southern Ocean community, represented by 75 scientists and policy-makers from 22 countries, recently met to formulate a collective vision on the priorities for Antarctic research for the next two decades and beyond. Here, we assess high-interest research areas related specifically to Southern Ocean life and ecology that, although not all retained as the 80 top priorities among the addressed scientific domains, are of considerable relevance to the biology and ecology of the Southern Ocean. As certain regions of the Southern Ocean ecosystems have witnessed abiotic and biotic changes in the last decades (e.g., warming, climate variability, changes in sea ice, and abundance of marine organisms), such an exercise was urgently needed. We concluded that basic biological information on the taxonomy of numerous organisms is still lacking in areas, such as the deep-ocean floor or the under-ice environments. Furthermore, there is a need for knowledge about the response and resilience of Antarctic marine ecosystems to change. The continuation of a long-term commitment and the development and use of innovative technology to adequately monitor the Southern Ocean ecosystems is required. Highlighting the most important Southern Ocean research topics allow the identification of the challenges and future requirements in technological development, and both research and funding strategies for the various stakeholders. |
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1091 |
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2296-7745 |
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yes |
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6433 |
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Author |
Xaver von Beckerath, Gita Benadi, Olivier Gilg, Benoît Sittler, Glenn Yannic, Alexandra-Maria Klein, Bernhard Eitzinger |
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Title |
Long-term monitoring reveals topographical features and vegetation that explain winter habitat use of an Arctic rodent |
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Journal |
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Year |
2022 |
Publication |
Arctic Science |
Abbreviated Journal |
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Volume |
8 |
Issue |
2 |
Pages |
349-361 |
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Abstract |
The quality of wintering habitats, such as depth of snow cover, plays a key role in sustaining population dynamics of Arctic lemmings. However, few studies so far investigated habitat use during the Arctic winter. Here, we used a unique long-term time series to test whether lemmings are associated with topographical and vegetational habitat features for their wintering sites. We examined yearly numbers and distribution of 22 769 winter nests of the collared lemming Dicrostonyx groenlandicus (Traill, 1823) from an ongoing long-term research on Traill Island, Northeast Greenland, collected between 1989 and 2019, and correlated this information with data on dominant vegetation types, elevation, and slope. We found that the number of lemming nests was highest in areas with a high proportion of Dryas heath, but was also correlated with other vegetation types, suggesting some flexibility in resource use of wintering lemmings. Furthermore, lemmings showed a higher use for sloped terrain, probably as it enhances the formation of deep snow drifts, which increases the insulative characteristics of the snowpack and protection from predators. With global warming, prime lemming winter habitats may become scarce through alteration of snow physical properties, potentially resulting in negative consequence for the whole community of terrestrial vertebrates. |
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1036 |
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yes |
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Serial |
8426 |
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Author |
Wynn, R. B., D. Brown, G. Thomas, C. A. Holt, S. A. Hanssen, B. Moe, and O. Gilg |
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Title |
Spring migration routes of Long-tailed Skuas around and across the UK – results of observational and tracking data |
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Journal Article |
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Year |
2014 |
Publication |
British Birds |
Abbreviated Journal |
Br. Birds |
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Volume |
107 |
Issue |
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Pages |
220-228 |
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Abstract |
In 2013 a record spring passage of Long-tailed Skuas Stercorarius
longicaudus was observed in Scotland, including an unprecedented overland
movement. Tracking data for the species has also hinted at overland migration in
Scotland. Here, the tracking data are reviewed and the spring passage status of
Long-tailed Skuas in the UK assessed, with a particular focus on observed overland
movements, and first-hand accounts of major movements in spring 2013 |
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1036 |
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0007-0335 |
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yes |
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Serial |
5493 |
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Author |
Wynen L.P., Goldsworthy S.D., Guinet C., Bester M.N., Boyd I.L., Gjertz I., Hofmeyr G.J.G., White R.W.G. & Slade R. |
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Title |
Postsealing genetic variation and population structure of two species of fur seal(Arctocephalus gazella and A. tropicalis). |
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Journal Article |
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Year |
2000 |
Publication |
Molecular biology |
Abbreviated Journal |
Mol. Biol. (N.Y.) |
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Volume |
9 |
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299-314 |
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109 |
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ISSN |
0026-8933 |
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yes |
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1011 |
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Author |
Wüstefeld Andreas, Bokelmann Götz, Barruol Guilhem, Montagner Jean-Paul, |
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Title |
Identifying global seismic anisotropy patterns by correlating shear-wave splitting and surface-wave data
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Journal Article |
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2009 |
Publication |
Physics of the Earth and Planetary Interiors |
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176 |
Issue |
34 |
Pages |
198-212 |
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Keywords |
Anisotropy, Surface waves, Splitting, Upper mantle, |
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Abstract |
We compare a global compilation of shear-wave splitting measurements with azimuthal seismic anisotropy parameters inferred from surface-wave tomography. The currently available splitting dataset is taken from a novel comprehensive collection of available publications that is updated interactively online. The comparison between the two types of data is made by calculating predicted splitting parameters from the anisotropic tomography model. Comparing these predicted splitting parameters with the observed ones, we find a considerable correlation between the two datasets at global scale. This result is noteworthy, since such correlation did not seem to exist in previous studies. The spatial resolution associated with the two types of methods is rather different. While surface waves have good vertical resolution and poor lateral resolution of several hundreds of kilometers, SKS splitting measurements have good lateral, but poor vertical resolution. The correlation can be understood in light of recent propositions that anisotropy seen by SKS splitting constrains mostly the upper mantle, and therefore a similar depth region as surface waves. The correlation also confirms the generally good quality of the shear-wave measurements, as well as that of the anisotropic tomography model. |
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133 |
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0031-9201 |
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yes |
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2906 |
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Author |
Wouter F D Van Dongen, Joël White, Hanja B Brandl, Sarah Leclaire, Scott A Hatch, Étienne Danchin, Richard H Wagner |
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Title |
Experimental evidence of a sexually transmitted infection in a wild vertebrate, the black-legged kittiwake (Rissa tridactyla) |
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Journal |
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Year |
2019 |
Publication |
Biological Journal of the Linnean Society |
Abbreviated Journal |
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Volume |
127 |
Issue |
2 |
Pages |
292-298 |
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Abstract |
Sexually transmitted infections (STIs) in animals may have profound eco-evolutionary consequences, yet experimental studies of the sexual transmission of pathogens in wild populations are lacking. Here to identify sexually transmitted bacteria, we experimentally manipulated ejaculate transfer in black-legged kittiwakes (Rissa tridactyla) by blocking insemination after pairs had commenced copulating. We found that a Corynebacterium pathogenic strain was cleared from the cloaca of females five times more frequently in the experimental group, indicating it had been sexually transferred. A typical feature of STIs is that they reduce fertility, and in our kittiwake population, infected females suffered significantly higher hatching failure than uninfected females. Nevertheless, infected females achieved the same reproductive success as uninfected females by laying earlier and producing more eggs, suggesting reproductive compensation, a common strategy adopted by infected animals and plants. Our results provide new insights into the fitness consequences of STIs in a wild species and may stimulate further research on their evolutionary implications. |
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1162 |
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0024-4066 |
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yes |
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8359 |
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Author |
Worthy T.H. & Jouventin P. |
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Title |
The fossil Avifauna of Amsterdam Island, Indian Ocean. |
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Journal Article |
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1999 |
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Smithsonian contributions to paleobiology |
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89 |
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39-65 |
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109 |
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0081-0266 |
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1748 |
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Author |
Worland M.R. |
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Title |
Factors that influence freezing in the sub-Antarctic springtail Tullbergia antarctica. |
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Journal Article |
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2005 |
Publication |
Journal of insect physiology |
Abbreviated Journal |
J. Insect Physiol. |
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51 |
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881-894 |
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136 |
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0022-1910 |
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2886 |
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