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Title |
Differences in δ13C and δ15N values between feathers and blood of seabird chicks: implications for non‑invasive isotopic
investigations |
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Journal Article |
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Year |
2014 |
Publication |
MARINE BIOLOGY |
Abbreviated Journal |
Mar. Biol. |
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Volume |
161 |
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109 |
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0025-3162 |
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yes |
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5048 |
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Author |
Cherel Y, Connan M, Jaeger A, Richard P, |
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Title |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
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Journal Article |
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Year |
2014 |
Publication |
Mar Ecol Prog Ser |
Abbreviated Journal |
Mar. Ecol. Prog. Ser. |
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Volume |
505 |
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Pages |
267-280 |
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109 |
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0171-8630 |
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yes |
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5040 |
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Title |
Evidence for Sex-Segregated Ocean Distributions of First-Winter Wandering Albatrosses at Crozet Islands
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Journal Article |
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Year |
2014 |
Publication |
PLoS ONE |
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Volume |
9 |
Issue |
2 |
Pages |
e86779- |
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Abstract |
The highly mobile wandering albatrosses (Diomedea exulans) are adapted to navigate the extreme environment of the Southern Ocean and return to isolated islands to breed. Each year they cover several hundreds of thousands of kilometers during travels across the sea. Little is known about the dispersal flights and migration of young albatrosses. We tracked, by satellite telemetry, the departure dispersal of 13 juvenile wandering albatrosses from the Crozet Islands and compared them with tracks of 7 unrelated adults during the interbreeding season. We used the satellite tracks to identify different behavioural steps of the inherited migration program used by juvenile wandering albatrosses during their first solo-migration. Our results show that the juvenile wandering albatrosses from Crozet Islands moved to sex-specific foraging zones of the ocean using at departures selectively the wind. The results suggest that the inherited migration program used by the juvenile wandering albatrosses encode several distinct steps, based on inherited preferred departure routes, differences in migration distance between sexes, and selective use of winds. During long transportation flights the albatrosses were influenced by winds and both adult and juveniles followed approximate loxodrome (rhumbline) routes coinciding with the foraging zone and the specific latitudes of their destination areas. During the long segments of transportation flights across open seas the juveniles selected routes at more northerly latitudes than adults.
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109 |
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Public Library of Science |
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1932-6203 |
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yes |
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5039 |
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Title |
The Al Hoceima Mw 6.4 earthquake of 24 February 2004 and its aftershocks sequence
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Type |
Journal Article |
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Year |
2014 |
Publication |
Journal of Geodynamics |
Abbreviated Journal |
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Volume |
77 |
Issue |
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Pages |
89-109 |
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Keywords |
Al Hoceima, Seismicity, Aftershocks sequence, Focal mechanisms, Tomography, Teleseismic inversion, |
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133 |
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ISSN |
0264-3707 |
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yes |
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Call Number |
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5038 |
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Title |
Reverberations, coda waves and ambient noise: Correlations at the global scale and retrieval of the deep phases
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Journal Article |
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Year |
2014 |
Publication |
Earth and Planetary Science Letters |
Abbreviated Journal |
Earth Planet. Sci. Lett. |
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Volume |
391 |
Issue |
1 |
Pages |
137-145 |
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Keywords |
interferometry, body waves, global scale, |
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Programme |
133 |
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ISSN |
0012-821X |
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yes |
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Call Number |
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Serial |
5037 |
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Author |
Lynner Colton, Long Maureen D, |
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Title |
Sub-slab anisotropy beneath the Sumatra and circum-Pacific subduction zones from source-side shear wave splitting observations
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Journal Article |
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Year |
2014 |
Publication |
Geochemistry, Geophysics, Geosystems |
Abbreviated Journal |
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Volume |
15 |
Issue |
6 |
Pages |
2262-2281 |
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Keywords |
source-side splitting, sub-slab anisotropy, shear wave splitting, 7240 Subduction zones, 7208 Mantle, |
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Abstract |
Understanding the dynamics of subduction is critical to our overall understanding of plate tectonics and the solid Earth system. Observations of seismic anisotropy can yield constraints on deformation patterns in the mantle surrounding subducting slabs, providing a tool for studying subduction dynamics. While many observations of seismic anisotropy have been made in subduction systems, our understanding of the mantle beneath subducting slabs remains tenuous due to the difficulty of constraining anisotropy in the sub-slab region. Recently, the source-side shear wave splitting technique has been refined and applied to several subduction systems worldwide, making accurate and direct measurements of sub-slab anisotropy feasible and offering unprecedented spatial and depth coverage in the sub-slab mantle. Here we present source-side shear wave splitting measurements for the Central America, Alaska-Aleutians, Sumatra, Ryukyu, and Izu-Bonin-Japan-Kurile subduction systems. We find that measured fast splitting directions in these regions generally fall into two broad categories, aligning either with the strike of the trench or with the motion of the subducting slab relative to the overriding plate. Trench parallel fast splitting directions dominate beneath the Izu-Bonin, Japan, and southern Kurile slabs and part of the Sumatra system, while fast directions that parallel the motion of the downgoing plate dominate in the Ryukyu, Central America, northern Kurile, western Sumatra, and Alaska-Aleutian regions. We find that plate motion parallel fast splitting directions in the sub-slab mantle are more common than previously thought. We observe a correlation between fast direction and age of the subducting lithosphere; older lithosphere (>95 Ma) is associated with trench parallel splitting while younger lithosphere (<95 Ma) is associated with plate motion parallel fast splitting directions. Finally, we observe source-side splitting for deep earthquakes (transition zone depths) beneath Japan and Sumatra, suggesting the presence of anisotropy at midmantle depths beneath these regions.
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133 |
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Edition |
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ISSN |
1525-2027 |
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yes |
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Call Number |
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Serial |
5036 |
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Author |
Lynner Colton, Long Maureen D, |
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Title |
Lowermost mantle anisotropy and deformation along the boundary of the African LLSVP
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Type |
Journal Article |
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Year |
2014 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
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Volume |
41 |
Issue |
10 |
Pages |
3447-3454 |
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Keywords |
lowermost mantle anisotropy, African LLSVP, discrepant SKS-SKKS splitting, 7208 Mantle, 7203 Body waves, |
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Abstract |
Shear wave splitting of SK(K)S phases is often used to examine upper mantle anisotropy. In specific cases, however, splitting of these phases may reflect anisotropy in the lowermost mantle. Here we present SKS and SKKS splitting measurements for 233 event-station pairs at 34 seismic stations that sample D″ beneath Africa. Of these, 36 pairs show significantly different splitting between the two phases, which likely reflects a contribution from lowermost mantle anisotropy. The vast majority of discrepant pairs sample the boundary of the African large low shear velocity province (LLSVP), which dominates the lower mantle structure beneath this region. In general, we observe little or no splitting of phases that have passed through the LLSVP itself and significant splitting for phases that have sampled the boundary of the LLSVP. We infer that the D″ region just outside the LLSVP boundary is strongly deformed, while its interior remains undeformed (or weakly deformed). |
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133 |
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ISSN |
1944-8007 |
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yes |
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Call Number |
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Serial |
5026 |
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Author |
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Title |
Ten year recurrence time between two major earthquakes affecting the same fault segment
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Type |
Journal Article |
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Year |
2014 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
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Volume |
41 |
Issue |
7 |
Pages |
2312-2318 |
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Keywords |
earthquake recurrence, rerupture, seismic gap hypothesis, dynamic stress, Scotia, 7215 Earthquake source observations, 7223 Earthquake interaction, forecasting, and prediction, 7203 Body waves, 7209 Earthquake dynamics, 7250 Transform faults, |
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Abstract |
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133 |
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ISSN |
1944-8007 |
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yes |
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Call Number |
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Serial |
5025 |
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Title |
Concordia, Antarctica, seismic experiment for the International Polar Year (CASE-IPY) |
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Journal Article |
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Year |
2014 |
Publication |
Annals of Geophysics |
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Volume |
57 |
Issue |
3 |
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133 |
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ISSN |
1593-5213 |
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yes |
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5016 |
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Title |
Pollution, habitat loss, fishing, and climate change as critical threats to penguins
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Journal Article |
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Year |
2015 |
Publication |
Conservation Biology |
Abbreviated Journal |
Conserv. Biol. |
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Volume |
29 |
Issue |
1 |
Pages |
31-41 |
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394 |
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1523-1739 |
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yes |
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Call Number |
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Serial |
5014 |
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