DOI: 10.1111/gcb.13880
Scopus记录号: 2-s2.0-85030177034
论文题名: Long-term ecological changes in marine mammals driven by recent warming in northwestern Alaska
作者: Szpak P. ; Buckley M. ; Darwent C.M. ; Richards M.P.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 1 起始页码: 490
结束页码: 503
语种: 英语
英文关键词: Arctic
; climate change
; marine mammals
; paleoecology
; sea ice
; stable isotopes
; western Alaska
Scopus关键词: arctic environment
; carbon isotope
; climate change
; climate variation
; ecological approach
; marine mammal
; nitrogen
; paleoclimate
; paleoecology
; sea ice
; stable isotope
; warming
; Alaska
; Arctic
; Kotzebue Sound
; United States
; Animalia
; Mammalia
; Phoca hispida
; collagen
; nitrogen
; Alaska
; animal
; Arctic
; bone
; chemistry
; climate change
; history
; ice cover
; metabolism
; Phocidae
; physiology
; Alaska
; Animals
; Arctic Regions
; Bone and Bones
; Climate Change
; Collagen
; History, 15th Century
; History, 16th Century
; History, 17th Century
; History, 18th Century
; History, 19th Century
; History, 21st Century
; History, Medieval
; Ice Cover
; Nitrogen Isotopes
; Seals, Earless
英文摘要: Carbon and nitrogen isotopes analyses were performed on marine mammal bone collagen from three archaeological sites (ad 1170–1813) on Cape Espenberg (Kotzebue Sound, northwestern Alaska) as well as modern animals harvested from the same area to examine long-term trends in foraging ecology and sea ice productivity. We observed significant and dramatic changes in ringed seal stable isotope values between the early 19th and early 21st centuries, likely due to changing sea ice productivity and reduced delivery of organic matter to the benthos driven by recent warming in the Arctic. These data highlight the importance of the archaeological record for providing a long-term perspective on environmental variation and interpreting recent changes driven by anthropogenic processes. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110598
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: Department of Anthropology, Trent University, Peterborough, ON, Canada; School of Earth and Environmental Sciences, Manchester Institute of Biotechnology, The University of Manchester, Manchester, United Kingdom; Department of Anthropology, University of California, Davis, CA, United States; Department of Archaeology, Simon Fraser University, Burnaby, BC, Canada
Recommended Citation:
Szpak P.,Buckley M.,Darwent C.M.,et al. Long-term ecological changes in marine mammals driven by recent warming in northwestern Alaska[J]. Global Change Biology,2018-01-01,24(1)