Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4081/jlimnol.2007.s1.65 |
Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna | |
Gibson, John A. E.; Cromer, Louise; Agius, Janelle T.; McInnes, Sandra J.; Marley, Nigel J. | |
通讯作者 | Gibson, John A. E. |
来源期刊 | JOURNAL OF LIMNOLOGY
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ISSN | 1129-5767 |
EISSN | 1723-8633 |
出版年 | 2007 |
卷号 | 66页码:65-71 |
英文摘要 | The preservation of tardigrade eggs and exuviae in Antarctic lake sediments provided an opportunity to assess post-glacial colonisation and Holocene tardigrade dynamics on the southern continent. Tardigrade eggs were recoveredftom five lakes, two from the maritime Antarctic and three from continental Antarctica. Eggs were identified from the following species: Dactylobiotus cf. ambiguus, Macrobiotus furciger, Macrobiotus blocki, Minibiotus weinerorum and Acutuncus antarcticus. Other, unornamented eggs were also observed. The preservation of some of these eggs in exuviae allowed identification to at least genus. Significant variations were observed in egg abundance within the sediment of each lake, and in one lake a species (Dactylobiotus cf. ambiguus) became locally extinct, probably as the result of penguin-associated eutrophication. Tardigrades generally did not become abundant for a considerable period after the lakes’ formation. The presence of an in-part endemic fauna is consistent with slow colonisation from Antarctic sources rather than wind transport from extra-continental sites. Tardigrade eggs appear to be abundant in high-latitude lake sediments, and greater use could be made of these records when evaluating tardigrade dynamics during the Holocene. |
英文关键词 | colonisation population dynamics ecological change Macrobiotus Minibiotus Acutuncus |
类型 | Article ; Proceedings Paper |
语种 | 英语 |
国家 | Australia ; England |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000250229400013 |
WOS关键词 | LAST GLACIAL MAXIMUM ; EAST ANTARCTICA ; LARSEMANN HILLS ; TERRESTRIAL TARDIGRADA ; AMERY OASIS ; BIOGEOGRAPHY ; EUTARDIGRADA ; PLEISTOCENE ; HISTORY |
WOS类目 | Limnology |
WOS研究方向 | Marine & Freshwater Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/155165 |
作者单位 | (1)Univ Tasmania, Inst Antarctic & So Ocean Studies, Hobart, Tas 7001, Australia;(2)Univ Tasmania, Sch Zool, Hobart, Tas 7001, Australia;(3)British Antarctic Survey, Cambridge CB3 0ET, England;(4)Univ Plymouth, Marine Biol & Ecol Res Grp, Plymouth PL4 8AA, Devon, England |
推荐引用方式 GB/T 7714 | Gibson, John A. E.,Cromer, Louise,Agius, Janelle T.,et al. Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna[J],2007,66:65-71. |
APA | Gibson, John A. E.,Cromer, Louise,Agius, Janelle T.,McInnes, Sandra J.,&Marley, Nigel J..(2007).Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna.JOURNAL OF LIMNOLOGY,66,65-71. |
MLA | Gibson, John A. E.,et al."Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna".JOURNAL OF LIMNOLOGY 66(2007):65-71. |
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