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Sigaus childi
''Sigaus childi'' is an endangered protected species of grasshopper from South Island, New Zealand known from the Alexandra district. Two species of grasshoppers are listed for protection under the Wildlife Act 1953 of New Zealand: ''S. childi'' and ''Brachaspis robustus''.〔(【引用サイトリンク】title=Schedule 7 Terrestrial and freshwater invertebrates declared to be animals )〕 The genus ''Sigaus'' is endemic to the New Zealand.
==Distribution and habitat==
''Sigaus childi'' has a patchy distribution in a small area of about 200 square kilometres around the township of Alexandra. Searches have been carried out on the northern end of the Knobby Range, North Rough Ridge, and the Rock and Pillar Range. All have failed to locate further populations of ''Sigaus childi''.〔Morris, S.J. ''Grasshopper Identification Sheet - Sigaus childi.'' Department of Conservation, Alexandra.〕〔Morris, S.J. 2003. ''Distribution and Taxonomic status of New Zealand endangered grasshoppers (Orthoptera: Acrididae)''. Department of Conservation, Wellington.〕 ''Sigaus childi'' is primarily found on dry, open, sparsely vegetated slopes. They are rarely found on modified farmland and are usually on north facing hillsides. Most of the ''Sigaus childi'' sites appear rocky, but this is mainly due to the low growing and sparse vegetation present there. Another more widespread species, ''S. australis'', that lives mostly in subalpine habitat in the mountain ranges nearby, also occurs in lowland semi-arid habitat of this region. This brings it into close contact and sympatry with ''S. childi'' at some locations. Analysis of genetic data indicate extensive gene flow between the two species〔Trewick, S.A. ''DNA barcoding is not enough: mismatch of taxonomy and genealogy in New Zealand grasshoppers''.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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