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231225s2018 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1111/gcb.14035
|2 doi
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|a pubmed24n0931.xml
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|a (DE-627)NLM279476248
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|a (NLM)29284198
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Bengtson Nash, Susan M
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Signals from the south; humpback whales carry messages of Antarctic sea-ice ecosystem variability
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| 264 |
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1 |
|c 2018
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 20.11.2018
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| 500 |
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|a Date Revised 21.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2017 John Wiley & Sons Ltd.
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|a Southern hemisphere humpback whales (Megaptera novaeangliae) rely on summer prey abundance of Antarctic krill (Euphausia superba) to fuel one of the longest-known mammalian migrations on the planet. It is hypothesized that this species, already adapted to endure metabolic extremes, will be one of the first Antarctic consumers to show measurable physiological change in response to fluctuating prey availability in a changing climate; and as such, a powerful sentinel candidate for the Antarctic sea-ice ecosystem. Here, we targeted the sentinel parameters of humpback whale adiposity and diet, using novel, as well as established, chemical and biochemical markers, and assembled a time trend spanning 8 years. We show the synchronous, inter-annual oscillation of two measures of humpback whale adiposity with Southern Ocean environmental variables and climate indices. Furthermore, bulk stable isotope signatures provide clear indication of dietary compensation strategies, or a lower trophic level isotopic change, following years indicated as leaner years for the whales. The observed synchronicity of humpback whale adiposity and dietary markers, with climate patterns in the Southern Ocean, lends strength to the role of humpback whales as powerful Antarctic sea-ice ecosystem sentinels. The work carries significant potential to reform current ecosystem surveillance in the Antarctic region
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4 |
|a Journal Article
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4 |
|a Research Support, Non-U.S. Gov't
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4 |
|a Antarctic sea-ice ecosystem
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| 650 |
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4 |
|a Southern Ocean
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| 650 |
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4 |
|a adiposity
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| 650 |
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4 |
|a biomonitoring
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| 650 |
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4 |
|a diet
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| 650 |
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4 |
|a humpback whales
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| 650 |
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4 |
|a persistent organic pollutants
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| 650 |
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4 |
|a sentinel
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| 700 |
1 |
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|a Castrillon, Juliana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Eisenmann, Pascale
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fry, Brian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shuker, Jon D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cropp, Roger A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dawson, Amanda
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bignert, Anders
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bohlin-Nizzetto, Pernilla
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Waugh, Courtney A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Polkinghorne, Bradley J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dalle Luche, Greta
|e verfasserin
|4 aut
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| 700 |
1 |
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|a McLagan, David
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 24(2018), 4 vom: 01. Apr., Seite 1500-1510
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:24
|g year:2018
|g number:4
|g day:01
|g month:04
|g pages:1500-1510
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| 856 |
4 |
0 |
|u http://dx.doi.org/10.1111/gcb.14035
|3 Volltext
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|h 1500-1510
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