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Biogeography of spiders (Araneae: Arachnida) on the islands of the Southern Ocean

journal contribution
posted on 2023-07-26, 12:35 authored by Philip J. A. Pugh
The araneofauna of the extreme Southern Hemisphere is highly impoverished and disharmonic. Four dead anthropogenic immigrant spiders have been collected from Antarctica while only 115 verified species from 26 families are reported on the islands of the Southern Ocean. Cluster analysis of the verified Southern Ocean species distribution data identifies a weak, but distinct, Neotropical/South Atlantic association together with robust South Indian and South Pacific biogeographic clusters. These groupings, largely attributed to vicariance and/or endemism, contain little evidence of post-Pleistocene dispersal. Indeed the 14 records of anthropogenic origin suggest that the pace of recent human-mediated introduction has been at least 30 times more rapid than that of Holocene natural dispersal.

History

Refereed

  • Yes

Volume

38

Issue number

12

Page range

1461-1487

Publication title

Journal of Natural History

ISSN

1464-5262

Publisher

Taylor & Francis

Language

  • other

Legacy posted date

2010-11-29

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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