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Author |
Haydar Karao?lu, Barbara Romanowicz |
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Title |
Inferring global upper-mantle shear attenuation structure by waveform tomography using the spectral element method |
Type |
Journal |
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Year |
2018 |
Publication |
Geophysical Journal International |
Abbreviated Journal |
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Volume |
213 |
Issue |
3 |
Pages |
1536-1558 |
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Keywords |
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Abstract |
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Programme |
133 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0956-540X |
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Approved |
yes |
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Call Number |
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Serial |
7325 |
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Author |
Haydar Karao?lu, Barbara Romanowicz |
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Title |
Global seismic attenuation imaging using full-waveform inversion: a comparative assessment of different choices of misfit functionals |
Type |
Journal |
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Year |
2018 |
Publication |
Geophysical Journal International |
Abbreviated Journal |
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Volume |
212 |
Issue |
2 |
Pages |
807-826 |
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Keywords |
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Abstract |
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Programme |
133 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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ISSN |
0956-540X |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7881 |
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Author |
Hajo Eicken, Finn Danielsen, Josephine-Mary Sam, Maryann Fidel, Noor Johnson, Michael K Poulsen, Olivia A Lee, Katie V Spellman, Lisbeth Iversen, Peter Pulsifer, Martin Enghoff |
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Title |
Connecting Top-Down and Bottom-Up Approaches in Environmental Observing |
Type |
Journal |
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Year |
2021 |
Publication |
BioScience |
Abbreviated Journal |
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Volume |
71 |
Issue |
5 |
Pages |
467-483 |
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Abstract |
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Programme |
1090,1206 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0006-3568 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
8249 |
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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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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Original 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 |
0006-3568 |
ISBN |
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Expedition |
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Notes |
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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 |
Coping with social stress: heart rate responses to agonistic interactions in king penguins
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Type |
Journal Article |
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Year |
2012 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
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Volume |
23 |
Issue |
6 |
Pages |
1178 -1185 |
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Keywords |
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Abstract |
In colonial breeders, agonistic interactions between conspecifics are frequent and may have significant physiological implications. Physiological responses (e.g., increased heart rate) to such social stressors may be determined by the potential costs of agonistic interactions, such as personal injury or risk of breeding failure, and by the motivation of the individuals concerned. The latter may vary according to individuals reproductive status or willingness to engage in agonistic interactions. In this study, we investigated heart rate responses to aggressive interactions in a breeding colony of king penguins Aptenodytes patagonicus. From heart rate (HR) and behavior recorded in 20 adults at various stages of the breeding season, we investigated how king penguins reacted to aggressive neighbors. A total of 589 agonistic interactions, 223 in which birds were actors and 366 in which birds remained bystanders (i.e., witnesses that were not involved in interactions), were characterized. We found that HR increased during agonistic interactions, both in actors and bystanders. The intensity (threat displays or physical attacks), duration, and rate of aggressive events (number of threats/blows per unit time) of an interaction significantly influenced the HR response in actors. For bystanders, however, only the duration of interactions seemed to matter. Our results also suggest a role for individual motivation, as initiators of agonistic interactions displayed higher HR increases than responders, and as increases were not constant throughout the reproductive season. We conclude that individual risk assessment and motivation modulate physiological responses to social stressors in group-living animals.
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Programme |
119 |
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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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Original Title |
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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 |
1045-2249 |
ISBN |
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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 |
4174 |
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Author |
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Title |
Food availability and offspring sex in a monogamous seabird: insights from an experimental approach
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Type |
Journal Article |
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Year |
2012 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
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Volume |
23 |
Issue |
4 |
Pages |
751 -758 |
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Keywords |
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Abstract |
Sex allocation theory predicts that parents should favor offspring of the sex that provides the greatest fitness return. Despite growing evidence suggesting that vertebrates are able to overcome the constraint of chromosomal sex determination, the general pattern remains equivocal, indicating a need for experimental investigations. We used an experimental feeding design to study sex allocation during 3 years in black-legged kittiwakes (Rissa tridactyla). Intense malemale competition for securing a breeding site is common in this species in which males are heavier and larger than females. Hence, we hypothesized that parents producing fledglings in better than average condition, as supplementarily fed pairs do, would increase their fitness return by producing sons. Conversely, producing daughters would be a better tactic for Unfed parents. Hence, we predicted that Fed parents produce more sons than Unfed parents. This prediction is particularly expected if sexual dimorphism arises as early as during chick rearing, suggesting strong selective pressures for optimal male development. Our results showed that 1) males were heavier and larger than females prior to fledging and that 2) Fed parents produced relatively more male hatchlings than Unfed parents. We interpret this result in terms of a TriversWillard-type process. Furthermore, our data revealed that Unfed parents significantly overproduced female hatchlings, whereas offspring sex ratio was balanced among Fed parents. Because the 3 reproductive seasons we considered were particularly poor food years, Unfed parents may have overproduced daughters to avoid the apparent higher reproductive costs of raising sons.
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Programme |
1162 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Place of Publication |
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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 |
1045-2249 |
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 |
4040 |
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Author |
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Title |
Behavioral and physiological responses to male handicap in chick-rearing black-legged kittiwakes
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Type |
Journal Article |
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Year |
2011 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
1045-2249 |
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Volume |
22 |
Issue |
6 |
Pages |
1156 -1165 |
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Keywords |
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Abstract |
Parental investment entails a trade-off between the benefits of effort in current offspring and the costs to future reproduction. Long-lived species are predicted to be reluctant to increase parental effort to avoid affecting their survival. We tested this hypothesis in black-legged kittiwakes Rissa tridactyla by clipping flight feathers of experimental males at the beginning of the chick-rearing period. We analyzed the consequences of this handicap on feeding and attendance behavior, body condition, integument coloration, and circulating levels of corticosterone and prolactin in handicapped males and their mates in comparison to unmanipulated controls. Chicks in both groups were compared in terms of aggressive behavior, growth, and mortality. Handicapped males lost more mass, had less bright integuments, and attended the nest less often than controls. Nevertheless, they fed their chicks at the same rate and had similar corticosterone and prolactin levels. Compared with control females, females mated with handicapped males showed a lower provisioning rate and higher nest attendance in the first days after manipulation. Their lower feeding rate probably triggered the increased sibling aggression and mortality observed in experimental broods. Our findings suggest that experimental females adaptively adjusted their effort to their mate's perceived quality or that their provisioning was constrained by their higher nest attendance. Overall, our results suggest that kittiwake males can decrease their condition for the sake of their chicks, which seems to contradict the hypothesis that kittiwakes should be reluctant to increase parental effort to avoid affecting their survival.
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Programme |
330;1162 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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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 |
1045-2249 |
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 |
3243 |
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Author |
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Title |
Magnetism, Iron Minerals, and Life on Mars |
Type |
Journal Article |
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Year |
2006 |
Publication |
Astrobiology |
Abbreviated Journal |
Astrobiology |
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Volume |
6 |
Issue |
3 |
Pages |
423-436 |
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Keywords |
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Abstract |
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Programme |
412 |
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Publisher |
Mary Ann Liebert, Inc., publishers |
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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 |
1531-1074 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5519 |
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Author |
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Title |
Structural organisation and dynamics in king penguin colonies |
Type |
Journal |
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Year |
2018 |
Publication |
Journal of Physics D: Applied Physics |
Abbreviated Journal |
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Volume |
51 |
Issue |
16 |
Pages |
164004 |
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Keywords |
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Abstract |
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Programme |
137,354 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Place of Publication |
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Summary Language |
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Series Editor |
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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 |
0022-3727 |
ISBN |
0022-3727 |
Medium |
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Expedition |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7099 |
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Author |
Sims, G., M. C. B. Ashley, X. Cui, J. R. Everett, L. Feng, X. Gong, S. Hengst, Z. Hu, C. Kulesa, J. S. Lawrence, D. M. Luong-Van, P. Ricaud, Z. Shang, J. W. V. Storey, L. Wang, H. Yang, J. Yang, X. Zhou, Z. Zhu |
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Title |
Precipitable Water Vapor above Dome A, Antarctica, Determined from Diffuse Optical Sky Spectra |
Type |
Journal Article |
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Year |
2012 |
Publication |
Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
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Volume |
124 |
Issue |
911 |
Pages |
74-83 |
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Keywords |
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Abstract |
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Programme |
910 |
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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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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 |
0004-6280 |
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 |
3632 |
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| Permanent link to this record |
