Relationships of Placostylus from Lord Howe Island

An investigation using the mitochondrial cytochrome c oxidase 1 gene

Winston F. Ponder, Donald J. Colgan, Dianne M. Gleeson, Greg H. Sherley

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Large (5-9 cm in length) land snails of the genus Placostylus are found in New Caledonia and the Loyalty Islands, northern New Zealand, the Three Kings Islands just north of New Zealand and on Lord Howe Island. Their presence on Lord Howe, an oceanic island less than 6 million years old, has been an intriguing biogeographical question. Maximum parsimony and maximum likelihood analyses using cytochrome c oxidase subunit I sequence data suggest that the Lord Howe Island and mainland New Zealand taxa are sisters, but that the Three Kings taxon is independently derived, possibly from New Caledonian stock. Placostylus colonies throughout the area of the present study are under considerable threat, with many intraspecific forms and some species threatened and some listed as endangered species. The taxonomic and conservation status of the Lord Howe Island populations are discussed.

Original languageEnglish
Pages (from-to)159-178
Number of pages20
JournalMolluscan Research
Volume23
Issue number2
DOIs
Publication statusPublished - 2003
Externally publishedYes

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Cytochromes c1
Electron Transport Complex IV
Islands
cytochrome-c oxidase
cytochrome
gene
New Zealand
Genes
Endangered Species
genes
New Caledonia
Snails
conservation status
new taxon
Caledonian orogeny
threatened species
endangered species
snail
snails
Population

Cite this

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Relationships of Placostylus from Lord Howe Island : An investigation using the mitochondrial cytochrome c oxidase 1 gene. / Ponder, Winston F.; Colgan, Donald J.; Gleeson, Dianne M.; Sherley, Greg H.

In: Molluscan Research, Vol. 23, No. 2, 2003, p. 159-178.

Research output: Contribution to journalArticle

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