The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island, Arctic Canada

doi:10.1038/srep20912

IVPP-IR > 中科院古脊椎所（2000年以后）

	The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island, Arctic Canada
	Stidham, Thomas A.1; Eberle, Jaelyn J.2,3
	2016-02-12
发表期刊	SCIENTIFIC REPORTS
卷号	6
文章类型	Article
摘要	Fossils attributable to the extinct waterfowl clade Presbyornithidae and the large flightless Gastornithidae from the early Eocene (-52-53 Ma) of Ellesmere Island, in northernmost Canada are the oldest Cenozoic avian fossils from the Arctic. Except for its slightly larger size, the Arctic presbyornithid humerus is not distinguishable from fossils of Presbyornis pervetus from the western United States, and the Gastornis phalanx is within the known size range of mid-latitude individuals. The occurrence of Presbyornis above the Arctic Circle in the Eocene could be the result of annual migration like that of its living duck and geese relatives, or it may have been a year-round resident similar to some Eocene mammals on Ellesmere and some extant species of sea ducks. Gastornis, along with some of the mammalian and reptilian members of the Eocene Arctic fauna, likely over-wintered in the Arctic. Despite the milder (above freezing) Eocene climate on Ellesmere Island, prolonged periods of darkness occurred during the winter. Presence of these extinct birds at both mid and high latitudes on the northern continents provides evidence that future increases in climatic warming (closer to Eocene levels) could lead to the establishment of new migratory or resident populations within the Arctic Circle.
WOS标题词	Science & Technology
DOI	10.1038/srep20912
关键词[WOS]	EUREKA SOUND GROUP ; PHYLOGENETIC ANALYSIS ; DEVON ISLAND ; PALEOGENE ; ANSERIFORMES ; PRESBYORNIS ; MAMMALIA ; CLIMATE ; AVES ; VERTEBRATES
收录类别	SCI
语种	英语
项目资助者	Chinese National Natural Science Foundation(NSFC41472025) ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)(XDB03020501) ; National Science Foundation(ARC0804627)
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000369937700002
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7133
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Univ Colorado Museum Nat Hist, 265 UCB, Boulder, CO 80309 USA 3.Univ Colorado, Dept Geol Sci, 265 UCB, Boulder, CO 80309 USA
推荐引用方式 GB/T 7714	Stidham, Thomas A.,Eberle, Jaelyn J.. The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island, Arctic Canada[J]. SCIENTIFIC REPORTS,2016,6.
APA	Stidham, Thomas A.,&Eberle, Jaelyn J..(2016).The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island, Arctic Canada.SCIENTIFIC REPORTS,6.
MLA	Stidham, Thomas A.,et al."The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island, Arctic Canada".SCIENTIFIC REPORTS 6(2016).