Survival of terrestrial soil-dwelling arthropods on and in seawater: implications for trans-oceanic dispersal
Survival of terrestrial soil-dwelling arthropods on and in seawater: implications for trans-oceanic dispersal
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DOI：
10.1046/j.1365-2435.2002.00636.x
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发表时间：
2002-06-01
影响因子：
5.2
通讯作者：
Harrison, JA
中科院分区：
文献类型：
--
作者：
Coulson, SJ;Hodkinson, ID;Harrison, JA
1.对6种北极高寒土壤节肢动物在海水中或在海水中的海洋运输生存能力进行了实验测试。在摇水浴中搅拌的海水表面膜上，暴露了5种弹尾目动物，分别是Hypogasterura tullbergi(Schaffer)、Onychiurus groenlandicus(Tullberg)、Onychiurus arcticus(Tullberg)、FolSomia furioculata(Tullberg)和Tetracanthella arctica Schott。所有五个物种的存活时间都在14天以上，在此期间物种间的存活率在27%到100%之间。在另一项单独的实验中，隐致性蠕形螨Camisia onomia Colloff和可湿润的北极弹尾虫T.arctica在海水中浸泡了两周以上。失明梭子蟹的存活率超过75%，但北极梭子蟹在淹没时的存活率下降到12%。生存时间足以使洋流从挪威北部输送到北极高原的斯瓦尔巴特群岛，距离约700公里。讨论了这些实验对非专门化土壤节肢动物远距离跨洋扩散的意义。
1. The ability of six species of high Arctic soil arthropod to survive oceanic transport in or on sea water was tested experimentally.2. Five species of Collembola, Hypogastrura tullbergi (Schaffer), Onychiurus groenlandicus (Tullberg), Onychiurus arcticus (Tullberg), Folsomia quadrioculata (Tullberg) and Tetracanthella arctica Schott were exposed on the surface film of seawater in chambers agitated within a shaking water bath.3. All five species survived for over 14 days, at the end of which survival among species varied between 27 and 100%.4. In a separate experiment the cryptostigmatic mite Camisia anomia Colloff and the 'wettable' collembolan T. arctica survived submersion in sea water for longer than 2 weeks. Survival of C. anomia exceeded 75% but that of T. arctica, when submerged, fell to 12%.5. Survival times are sufficient to permit ocean current transport from northern Norway to Svalbard in the high Arctic, a distance of around 700 km. The implications of the experiments for long-distance trans-oceanic dispersal of non-specialized soil arthropods are discussed.