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Title |
Benchmarking the seasonal cycle of CO 2 fluxes simulated by terrestrial ecosystem models
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Journal Article |
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Year |
2015 |
Publication |
Global Biogeochemical Cycles |
Abbreviated Journal |
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Volume |
29 |
Issue |
1 |
Pages |
46-64 |
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416 |
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0886-6236 |
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yes |
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6043 |
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Title |
Comprehensive laboratory and field testing of cavity ring-down spectroscopy analyzers measuring H2O, CO2, CH4 and CO
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Type |
Journal Article |
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Year |
2015 |
Publication |
Atmospheric Measurement Techniques Discussions |
Abbreviated Journal |
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Volume |
8 |
Issue |
4 |
Pages |
4219-4272 |
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Abstract |
To develop an accurate measurement network of greenhouse gases, instruments in the field need to be stable and precise and thus require infrequent calibrations and a low consumption of consumables. For about ten years, cavity ring-down spectroscopy (CRDS) analyzers have been available that meet these stringent requirements for precision and stability. Here, we present the results of tests of CRDS instruments in the laboratory (47 instruments) and in the field (15 instruments). The precision and stability of the measurements are studied. We demonstrate that, thanks to rigorous testing, newer models generally perform better than older models, especially in terms of reproducibility between instruments. In the field, we see the importance of individual diagnostics during the installation phase, and we show the value of calibration and target gases that assess the quality of the data. Finally, we formulate recommendations for use of these analyzers in the field. |
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416 |
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Copernicus GmbH |
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ISSN |
1867-1381 |
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yes |
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Serial |
6042 |
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Author |
Masson-Delmotte V., Steen-Larsen H.-C., Zanetti N., Cattani O., Maturilli M., Debatin S., Terzer S., Bonne J.-L., et Schneider M |
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Title |
Understanding climatic controls on Svalbard water vapour and precipitation isotopic composition |
Type |
Conference - International - Communication |
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Year |
2015 |
Publication |
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Abbreviated Journal |
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Abstract |
EGU General Assembly 2015, Vienna, Austria, 2015
in: EGU2015-14472-1 |
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Programme |
1134 |
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yes |
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Serial |
6040 |
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Author |
Sittler, B., J. Lang, and O. Gilg |
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Type |
Book Chapter |
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Year |
2015 |
Publication |
Vogelwarte |
Abbreviated Journal |
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Volume |
53 |
Issue |
2 |
Pages |
216-220 |
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Abstract |
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Programme |
1036 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0049-6650 |
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yes |
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6036 |
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Author |
Tartu S, Angelier F, Bustnes JO, Moe B, Hanssen SA, Herzke D, Gabrielsen GW, Verboven N, Verreault J, Labadie P, Budzinski H, Wingfield JC, Chastel O, |
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Title |
Polychlorinated biphenyl exposure and corticosterone levels in seven polar seabird species
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Type |
Journal Article |
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Year |
2015 |
Publication |
Environmental Pollution |
Abbreviated Journal |
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Volume |
197 |
Issue |
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Pages |
173-180 |
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Keywords |
Antarctic, Arctic, Birds, Glucocorticoids, PCBs, Stress, |
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Programme |
109,330 |
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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 |
0269-7491 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
6030 |
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Title |
Survival rate and breeding outputs in a high Arctic seabird exposed to legacy persistent organic pollutants and mercury.
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Type |
Journal Article |
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Year |
2015 |
Publication |
Environmental pollution (Barking, Essex : 1987) |
Abbreviated Journal |
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Volume |
200 |
Issue |
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Pages |
1-9 |
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Keywords |
Animals, Arctic Regions, Breeding, Charadriiformes, Charadriiformes: blood, Chlordan, Chlordan: analogs & derivatives, Chlordan: blood, Environmental Monitoring, Female, Hazardous Substances, Hazardous Substances: blood, Male, Mercury, Mercury: blood, Polychlorinated Biphenyls, Polychlorinated Biphenyls: blood, Survival Rate, Svalbard, |
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Abstract |
Chronic exposure to pollutants may represent a threat for wildlife. We tested whether adult survival rate, breeding probability and breeding success the year of sampling and the following year were affected by blood levels of mercury or persistent organic pollutants in Svalbard black-legged kittiwake Rissa tridactyla, by using capture-mark-recapture models over a five-year period. Survival rate was negatively linked to HCB levels in females, to chlordane mixture and oxychlordane, tended to decrease with increasing PCBs or DDE levels, but was unrelated to mercury. Breeding probability decreased with increasing mercury levels during the sampling year and with increasing CHL or HCB levels during the following year, especially in males observed as breeders. Surprisingly, the probability of raising two chicks increased with increasing HCB levels. Although levels of these legacy pollutants are expected to decline, they represent a potential threat for adult survival rate and breeding probability, possibly affecting kittiwake population dynamics.
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330 |
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ISSN |
0269-7491 |
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Approved |
yes |
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Call Number |
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Serial |
6029 |
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Author |
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Title |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study
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Type |
Journal Article |
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Year |
2015 |
Publication |
Functional Ecology |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
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Abstract |
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Programme |
330 |
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ISSN |
0269-8463 |
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Approved |
yes |
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Call Number |
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Serial |
6027 |
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Author |
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Title |
GPS-loggers influence behaviour and physiology in the black-legged kittiwake Rissa tridactyla
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Type |
Journal Article |
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Year |
2015 |
Publication |
Mar Ecol Prog Ser |
Abbreviated Journal |
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Volume |
521 |
Issue |
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Pages |
237-248 |
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Keywords |
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Abstract |
In recent decades, data loggers and radio- and satellite transmitters have become an important technological part of research on free living animals. Loggers to track movements and behaviour are especially useful in seabird studies, as seabirds often travel considerable distances at sea where visual observations are challenging. The potential negative effects of these devices on mortality, behaviour and reproduction of birds have received some attention, but few studies have investigated the physiological effects of instrument attachment. In the present study, effects of global positioning system (GPS) loggers on black-legged kittiwakes Rissa tridactyla were investigated by obtaining behavioural and physiological parameters of stress (nest attendance, plasma levels of the avian stress hormone corticosterone [CORT], relative leucocyte counts, body mass and reproductive success) during 2 d of GPS-deployment. GPS-equipped kittiwakes had significantly elevated levels of CORT at recapture and also significantly extended the duration of feeding trips compared to controls. Kittiwakes with low body condition index (BCI) attended nests less than controls, and this pattern was more pronounced among GPS-equipped birds. The study underlines the need to take device effects into consideration when instrumenting seabirds. Potentially, effects may become more evident in birds with low body condition or in years where food is limited, and results from GPS-equipped birds should be viewed with this in mind. |
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Programme |
330 |
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ISSN |
0171-8630 |
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Approved |
yes |
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Call Number |
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Serial |
6025 |
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Author |
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Title |
Increased adrenal responsiveness and delayed hatching date in relation to polychlorinated biphenyl exposure in Arctic-breeding black-legged kittiwakes (Rissa tridactyla)
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Type |
Journal Article |
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Year |
2015 |
Publication |
General and Comparative Endocrinology |
Abbreviated Journal |
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Volume |
219 |
Issue |
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Pages |
165-172 |
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Keywords |
ACTH, Adrenal gland, Corticosterone, Dexamethasone, PCBs, Reproduction, |
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Abstract |
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Programme |
330 |
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ISSN |
0016-6480 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
6024 |
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| Permanent link to this record |
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Author |
Olivier Chastel |
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Title |
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Type |
Conference - National - Communication |
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Year |
2015 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Abstract |
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Programme |
330 |
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Approved |
yes |
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Call Number |
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Serial |
6022 |
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| Permanent link to this record |
