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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Genetically separate populations of the ocean-skater Halobates sericeus (Heteroptera: Gerridae) have been maintained since the late Pleistocene Leo, S.T.S.; Cheng, L.; Sperling, F.A.H. (2012). Genetically separate populations of the ocean-skater Halobates sericeus (Heteroptera: Gerridae) have been maintained since the late Pleistocene. Biol. J. Linn. Soc. 105(4): 797-805. https://dx.doi.org/10.1111/j.1095-8312.2011.01836.x In: Biological Journal of the Linnean Society. Academic Press: London; New York. ISSN 0024-4066; e-ISSN 1095-8312, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 354822 [ aanvragen ]

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Trefwoorden

Divergence zones Population characteristics > Population structure Halobates (Halobates) sericeus Eschscholtz, 1822 [WoRMS] Pacific Ocean I. Marien/Kust

Author keywords

divergence time; ocean-skater; Pacific Ocean; population structure

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Auteurs		Top
Leo, S.T.S. Cheng, L., meer Sperling, F.A.H.

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Abstract

The oceanic water strider (or ocean-skater) Halobates sericeus Eschscholtz has a disjunct distribution in the Pacific Ocean, with northern and southern populations widely separated by an equatorial zone. It is sensitive to sea surface conditions and, consequently, its distribution and population structure may provide an insight into environmental changes on the ocean surface on both recent and historical time scales. We assessed the genetic diversity and population structure of H. sericeus in the Pacific Ocean using three gene markers – cytochrome oxidase subunit I (COI), elongation factor 1a and internal transcribed spacer 1 (ITS-1). These markers indicate that both populations are evolutionarily distinct with limited gene flow, having separated 20 000–50 000 years ago. This suggests that physical conditions and/or biotic interactions on the surface of the Pacific Ocean have provided significant barriers to gene flow since the late Pleistocene or earlier, creating biotic stability over large geographical and temporal scales in spite of a long history of global climate change

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