globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14035
Scopus记录号: 2-s2.0-85041043266
论文题名:
Signals from the south; humpback whales carry messages of Antarctic sea-ice ecosystem variability
作者: Bengtson Nash S.M.; Castrillon J.; Eisenmann P.; Fry B.; Shuker J.D.; Cropp R.A.; Dawson A.; Bignert A.; Bohlin-Nizzetto P.; Waugh C.A.; Polkinghorne B.J.; Dalle Luche G.; McLagan D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:4
起始页码: 1500
结束页码: 1510
语种: 英语
英文关键词: adiposity ; Antarctic sea-ice ecosystem ; biomonitoring ; diet ; humpback whales ; persistent organic pollutants ; sentinel ; Southern Ocean
Scopus关键词: biomonitoring ; crustacean ; diet ; persistent organic pollutant ; physiological response ; prey availability ; sea ice ; Southern Hemisphere ; trophic level ; whale ; Southern Ocean ; Cetacea ; Euphausia superba ; Euphausiacea ; Mammalia ; Megaptera ; Megaptera novaeangliae
英文摘要: 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. © 2017 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110448
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Southern Ocean Persistent Organic Pollutants Program, The Environmental Futures Research Institute, Griffith University, Brisbane, QLD, Australia; The Australian River's Institute, Griffith University, Brisbane, QLD, Australia; eResearch Services, Griffith University, Brisbane, QLD, Australia; School of Environment, Griffith University, Brisbane, QLD, Australia; Swedish Museum of Natural History, Stockholm, Sweden; NILU – Norwegian Institute for Air Research, Kjeller, Norway; Norwegian University of Science and Technology, Trondheim, Norway; Avanade Inc., Brisbane, QLD, Australia; University of Toronto, Toronto, ON, Canada

Recommended Citation:
Bengtson Nash S.M.,Castrillon J.,Eisenmann P.,et al. Signals from the south; humpback whales carry messages of Antarctic sea-ice ecosystem variability[J]. Global Change Biology,2018-01-01,24(4)
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