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Records |
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Author |
Weimerskirch, H.; Cherel, Y.; Cuenot-Chaillet, F.; Ridoux, V. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Alternative foraging strategies and resource allocation by male and female wandering albatrosses. |
Type |
Journal Article |
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Year |
1997 |
Publication |
Ecology |
Abbreviated Journal |
Ecology |
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Volume |
78 |
Issue |
7 |
Pages |
2051-2063 |
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109 |
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0012-9658 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5562 |
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Author |
Andrea Chiang, Gene A. Ichinose, Doug S. Dreger, Sean R. Ford, Eric M. Matzel, Steve C. Myers, W. R. Walter |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Moment Tensor Source‐Type Analysis for the Democratic People’s Republic of Korea–Declared Nuclear Explosions (2006–2017) and 3 September 2017 Collapse Event |
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Journal |
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Year |
2018 |
Publication |
Seismological Research Letters |
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Volume |
89 |
Issue |
6 |
Pages |
2152-2165 |
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133 |
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Bachelor's thesis |
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0895-0695 |
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yes |
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7882 |
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Author |
Hullé M, |
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Title |
Myzus ascalonicus, an Aphid Recently Introduced to Sub-Antarctic Islands, Prefers Native to Exotic Host-Plants
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Type |
Journal Article |
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Year |
2012 |
Publication |
ENVIRONMENTAL ENTOMOLOGY |
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Volume |
41 |
Issue |
6 |
Pages |
1398-1404 |
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136 |
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Bachelor's thesis |
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0046-225X |
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yes |
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4264 |
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Marcucci, M.F., I. Coco, S. Massetti, S. Longo, D. Biondi, E. Simeoli, A. Marchaudon, A. Koustov, G. Pallocchia, G. Consolini, M. Laurenza, and E. Amata |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Dome C East radar: Preliminary analysis of echo statistics |
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Journal |
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Year |
2019 |
Publication |
Il nuovo cimento c |
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Volume |
42 |
Issue |
1 |
Pages |
1-3 |
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312 |
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Bachelor's thesis |
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0390-5551 |
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yes |
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Serial |
7472 |
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Author |
Gisele P. M. Dantas, Larissa R. Oliveira, Amanda M. Santos, Mariana D. Flores, Daniella R. de Melo, Alejandro Simeone, Daniel González-Acuña, Guillermo Luna-Jorquera, Céline Le Bohec, Armando Valdés-Velásquez, Marco Cardeña, João S. Morgante, Juliana A. Vianna |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Uncovering population structure in the Humboldt penguin (Spheniscus humboldti) along the Pacific coast at South America |
Type |
Journal |
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Year |
2019 |
Publication |
PLOS ONE |
Abbreviated Journal |
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Volume |
14 |
Issue |
5 |
Pages |
e0215293 |
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Keywords |
Animal sociality Chile (country) Gene flow Haplotypes Islands Penguins Population genetics Seabirds |
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Abstract |
The upwelling hypothesis has been proposed to explain reduced or lack of population structure in seabird species specialized in food resources available at cold-water upwellings. However, population genetic structure may be challenging to detect in species with large population sizes, since variation in allele frequencies are more robust under genetic drift. High gene flow among populations, that can be constant or pulses of migration in a short period, may also decrease power of algorithms to detect genetic structure. Penguin species usually have large population sizes, high migratory ability but philopatric behavior, and recent investigations debate the existence of subtle population structure for some species not detected before. Previous study on Humboldt penguins found lack of population genetic structure for colonies of Punta San Juan and from South Chile. Here, we used mtDNA and nuclear markers (10 microsatellites and RAG1 intron) to evaluate population structure for 11 main breeding colonies of Humboldt penguins, covering the whole spatial distribution of this species. Although mtDNA failed to detect population structure, microsatellite loci and nuclear intron detected population structure along its latitudinal distribution. Microsatellite showed significant Rst values between most of pairwise locations (44 of 56 locations, Rst = 0.003 to 0.081) and 86% of individuals were assigned to their sampled colony, suggesting philopatry. STRUCTURE detected three main genetic clusters according to geographical locations: i) Peru; ii) North of Chile; and iii) Central-South of Chile. The Humboldt penguin shows signal population expansion after the Last Glacial Maximum (LGM), suggesting that the genetic structure of the species is a result of population dynamics and foraging colder water upwelling that favor gene flow and phylopatric rate. Our findings thus highlight that variable markers and wide sampling along the species distribution are crucial to better understand genetic population structure in animals with high dispersal ability. |
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Programme |
137 |
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Thesis |
Bachelor's thesis |
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ISSN |
1932-6203 |
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Approved |
yes |
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Call Number |
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Serial |
6962 |
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Author |
Audrey Jaeger, Camille Lebarbenchon, Vincent Bourret, Matthieu Bastien, Erwan Lagadec, Jean-Baptiste Thiebot, Thierry Boulinier, Karine Delord, Christophe Barbraud, Cédric Marteau, Koussay Dellagi, Pablo Tortosa, Henri Weimerskirch |
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Title |
Avian cholera outbreaks threaten seabird species on Amsterdam Island |
Type |
Journal |
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Year |
2018 |
Publication |
PLOS ONE |
Abbreviated Journal |
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Volume |
13 |
Issue |
5 |
Pages |
e0197291 |
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Keywords |
Birds Bone marrow Cholera Islands Pasteurella multocida Penguins Seabirds Sequence databases |
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Abstract |
Infectious diseases may be particularly critical for the conservation of endangered species. A striking example is the recurrent outbreaks that have been occurring in seabirds on Amsterdam Island for the past 30 years, threatening populations of three Endangered seabird species and of the endemic, Critically Endangered Amsterdam albatross Diomedea amsterdamensis. The bacteria Pasteurella multocida (avian cholera causative agent), and to a lesser extent Erysipelothrix rhusiopathiae (erysipelas causative agent), were both suspected to be responsible for these epidemics. Despite this critical situation, demographic trends were not available for these threatened populations, and the occurrence and characterization of potential causative agents of epizootics remain poorly known. The aims of the current study were to (i) provide an update of population trends for four threatened seabird species monitored on Amsterdam Island, (ii) assess the occurrence of P. multocida, and E. rhusiopathiae in live birds from five species, (iii) search for other infectious agents in these samples and, (iv) isolate and genotype the causative agent(s) of epizooties from dead birds. Our study shows that the demographic situation has worsened substantially in three seabird species during the past decade, with extremely low reproductive success and declining populations for Indian yellow-nosed albatrosses Thalassarche carteri, sooty albatrosses Phoebetria fusca, and northern rockhopper penguins Eudyptes moseleyi. Pasteurella multocida or E. rhusiopathiae were detected by PCR in live birds of all five investigated species, while results were negative for eight additional infectious agents. A single strain of P. multocida was repeatedly cultured from dead birds, while no E. rhusiopathiae could be isolated. These results highlight the significance of P. multocida in this particular eco-epidemiological system as the main agent responsible for epizootics. The study stresses the urgent need to implement mitigation measures to alter the course of avian cholera outbreaks threatening the persistence of seabird populations on Amsterdam Island. |
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Programme |
109,1151 |
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Thesis |
Bachelor's thesis |
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ISSN |
1932-6203 |
ISBN |
1932-6203 |
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Approved |
yes |
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Call Number |
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Serial |
7120 |
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Author |
Toullec Jean-Yves, Corre Erwan, Bernay Benoît, Thorne Michael A S, Cascella Kévin, Ollivaux Céline, Henry Joël, Clark Melody S, |
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Title |
Transcriptome and Peptidome Characterisation of the Main Neuropeptides and Peptidic Hormones of a Euphausiid: The Ice Krill, Euphausia crystallorophias |
Type |
Book Chapter |
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Year |
2013 |
Publication |
PLOS ONE |
Abbreviated Journal |
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Volume |
8 |
Issue |
8 |
Pages |
e71609 |
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Keywords |
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Abstract |
Background: The Ice krill, Euphausia crystallorophias is one of the species at the base of the Southern Ocean food chain. Given their significant contribution to the biomass of the Southern Ocean, it is vitally important to gain a better understanding of their physiology and, in particular, anticipate their responses to climate change effects in the warming seas around Antarctica. Methodology/Principal Findings: Illumina sequencing was used to produce a transcriptome of the ice krill. Analysis of the assembled contigs via two different methods, produced 36 new pre-pro-peptides, coding for 61 neuropeptides or peptide hormones belonging to the following families: Allatostatins (A, B et C), Bursicon (α and β), Crustacean Hyperglycemic Hormones (CHH and MIH/VIHs), Crustacean Cardioactive Peptide (CCAP), Corazonin, Diuretic Hormones (DH), the Eclosion Hormone (EH), Neuroparsin, Neuropeptide F (NPF), small Neuropeptide F (sNPF), Pigment Dispersing Hormone (PDH), Red Pigment Concentrating Hormone (RPCH) and finally Tachykinin. LC/MS/MS proteomics was also carried out on eyestalk extracts, which are the major site of neuropeptide synthesis in decapod crustaceans. Results confirmed the presence of six neuropeptides and six precursor-related peptides previously identified in the transcriptome analyses.Conclusions: This study represents the first comprehensive analysis of neuropeptide hormones in a Eucarida non-decapod Malacostraca, several of which are described for the first time in a non-decapod crustacean. Additionally, there is a potential expansion of PDH and Neuropeptide F family members, which may reflect certain life history traits such as circadian rhythms associated with diurnal migrations and also the confirmation via mass spectrometry of several novel pre-pro-peptides, of unknown function. Knowledge of these essential hormones provides a vital framework for understanding the physiological response of this key Southern Ocean species to climate change and provides a valuable resource for studies into the molecular phylogeny of these organisms and the evolution of neuropeptide hormones. |
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Programme |
1039 |
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Bachelor's thesis |
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1932-6203 |
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yes |
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Call Number |
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Serial |
4503 |
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Author |
Labonne Jacques, Vignon Matthias, Prévost Etienne, Lecomte Frédéric, Dodson Julian J, Kaeuffer Renaud, Aymes Jean-Christophe, Jarry Marc, Gaudin Philippe, Davaine Patrick, Beall Edward, |
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Title |
Invasion Dynamics of a Fish-Free Landscape by Brown Trout (Salmo trutta) |
Type |
Journal |
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Year |
2013 |
Publication |
PLoS ONE |
Abbreviated Journal |
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Volume |
8 |
Issue |
8 |
Pages |
e71052- |
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Abstract |
Metapopulation dynamics over the course of an invasion are usually difficult to grasp because they require large and reliable data collection, often unavailable. The invasion of the fish-free freshwater ecosystems of the remote sub-Antarctic Kerguelen Islands following man-made introductions of brown trout (Salmo trutta) in the 1950's is an exception to this rule. Benefiting from a full long term environmental research monitoring of the invasion, we built a Bayesian dynamic metapopulation model to analyze the invasion dynamics of 85 river systems over 51 years. The model accounted for patch size (river length and connections to lakes), alternative dispersal pathways between rivers, temporal trends in dynamics, and uncertainty in colonization date. The results show that the model correctly represents the observed pattern of invasion, especially if we assume a coastal dispersal pathway between patches. Landscape attributes such as patch size influenced the colonization function, but had no effect on propagule pressure. Independently from patch size and distance between patches, propagule pressure and colonization function were not constant through time. Propagule pressure increased over the course of colonization, whereas the colonization function decreased, conditional on propagule pressure. The resulting pattern of this antagonistic interplay is an initial rapid invasion phase followed by a strong decrease in the invasion rate. These temporal trends may be due to either adaptive processes or environmental gradients encountered along the colonization front. It was not possible to distinguish these two hypotheses. Because invasibility of Kerguelen Is. freshwater ecosystems is very high due to the lack of a pre-existing fish fauna and minimal human interference, our estimates of invasion dynamics represent a blueprint for the potential of brown trout invasiveness in pristine environments. Our conclusions shed light on the future of polar regions where, because of climate change, fish-free ecosystems become increasingly accessible to invasion by fish species. |
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Programme |
1041 |
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Thesis |
Bachelor's thesis |
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Publisher |
Public Library of Science |
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1932-6203 |
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yes |
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Serial |
4781 |
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Author |
Lecointre Guillaume, Améziane Nadia, Boisselier Marie-Catherine, Bonillo Céline, Busson Frédéric, Causse Romain, Chenuil Anne, Couloux Arnaud, Coutanceau Jean-Pierre, Cruaud Corinne, d'Acoz Cédric d'Udekem, De Ridder Chantal, Denys Gael, Dettaï Agnès, Duhamel Guy, Eléaume Marc, Féral Jean-Pierre, Gallut Cyril, Havermans Charlotte, Held Christoph, Hemery Lenaïg, Lautrédou Anne-Claire, Martin Patrick, Ozouf-Costaz Catherine, Pierrat Benjamin, Pruvost Patrice, Puillandre Nicolas, Samadi Sarah, Saucède Thomas, Schubart Christoph, David Bruno, |
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Title |
Is the Species Flock Concept Operational? The Antarctic Shelf Case
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Type |
Journal Article |
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Year |
2013 |
Publication |
PLOS ONE |
Abbreviated Journal |
1932-6203 |
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Volume |
8 |
Issue |
8 |
Pages |
e68787 |
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Programme |
1044;1124 |
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Bachelor's thesis |
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1932-6203 |
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yes |
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Call Number |
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Serial |
4307 |
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Author |
Olivier Gilg, Børge Moe, Sveinn Are Hanssen, Niels Martin Schmidt, Benoît Sittler, Jannik Hansen, Jeroen Reneerkens, Brigitte Sabard, Olivier Chastel, Jérôme Moreau, Richard A. Phillips, Thomas Oudman, Elisabeth M. Biersma, Anette A. Fenstad, Johannes Lang, Loïc Bollache |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Trans-Equatorial Migration Routes, Staging Sites and Wintering Areas of a High-Arctic Avian Predator: The Long-tailed Skua (Stercorarius longicaudus) |
Type |
Journal |
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Year |
2013 |
Publication |
PLOS ONE |
Abbreviated Journal |
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Volume |
8 |
Issue |
5 |
Pages |
e64614 |
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Keywords |
Animal migration Animal sexual behavior Birds Gulls Latitude Longitude Seabirds Spring (season) |
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Abstract |
The Long-tailed Skua, a small (<300 g) Arctic-breeding predator and seabird, is a functionally very important component of the Arctic vertebrate communities in summer, but little is known about its migration and winter distribution. We used light-level geolocators to track the annual movements of eight adult birds breeding in north-east Greenland (n = 3) and Svalbard (n = 5). All birds wintered in the Southern Hemisphere (mean arrival-departure dates on wintering grounds: 24 October-21 March): five along the south-west coast of Africa (0–40°S, 0–15°E), in the productive Benguela upwelling, and three further south (30–40°S, 0–50°E), in an area extending into the south-west Indian Ocean. Different migratory routes and rates of travel were documented during post-breeding (345 km d−1 in late August-early September) and spring migrations (235 km d−1 in late April) when most birds used a more westerly flyway. Among the different staging areas, a large region off the Grand Banks of Newfoundland appears to be the most important. It was used in autumn by all but one of the tracked birds (from a few days to three weeks) and in spring by five out of eight birds (from one to more than six weeks). Two other staging sites, off the Iberian coast and near the Azores, were used by two birds in spring for five to six weeks. Over one year, individuals travelled between 43,900 and 54,200 km (36,600–45,700 when excluding staging periods) and went as far as 10,500–13,700 km (mean 12,800 km) from their breeding sites. This study has revealed important marine areas in both the south and north Atlantic Ocean. Sustainable management of these ocean basins will benefit Long-tailed Skuas as well as other trans-equatorial migrants from the Arctic. |
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Programme |
330,1036 |
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Thesis |
Bachelor's thesis |
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ISSN |
1932-6203 |
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Approved |
yes |
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Call Number |
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Serial |
6950 |
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Permanent link to this record |