Monday, April 24, 2017

Genetic similarity of Hutton’s shearwaters (Puffinus huttoni) from two relict breeding populations

TitleGenetic similarity of Hutton’s shearwaters (Puffinus huttoni) from two relict breeding populations
Publication TypeJournal Article
Year of Publication2015
AuthorsHale, M, Harrow, G, Bradfield, P, Cubrinovska, I, Holdaway, RN
JournalNotornis
Volume62
Issue3
Pagination130-134
Type of ArticleFull Article
Keywordsgenetic similarity, Hutton's shearwater, New Zealand, Puffinus huttoni, relict populations
Abstract

Hutton’s shearwater (Puffinus huttoni) currently breeds only in 2 colonies in the Seaward Kaikoura mountains, South Island, New Zealand. Conservation measures now include re-locating young to establish a new low altitude colony. To assess the genetic similarity of birds breeding in the 2 colonies as a basis for decisions on sourcing recruits to the present and potentially other new colonies, we genotyped 9 microsatellite loci, with 3-13 alleles, in 30 birds from the Kowhai River catchment colony and 29 from Shearwater Stream. There was no significant population genetic differentiation between the 2 sampling locations. Our results suggest that there would be little genetic risk to mixing birds from both relict colonies in newly established colonies. Future analyses of the former distributions of Hutton’s shearwater, the fluttering shearwater (P. gavia), and the extinct Scarlett’s shearwater (P. spelaeus) will require an analysis of the levels of genetic similarity between birds from the relict colonies and those of former, widely separated colonies.

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