The subspecific origin of the inland breeding colonies of the cormorant Phalacrocorax carbo in Britain

The establishment of cormorant breeding colonies inland within south‐east Britain since 1981 is a matter of major conservation and pest management concern. This study was initiated to investigate the subspecific origin of two recently established breeding colonies. The analysis examined sequence var...

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Bibliographic Details
Published in:Heredity 2001-01, Vol.86 (1), p.45-53
Main Authors: Winney, B. J., Litton, C. D., Parkin, D. T., Feare, C. J.
Format: Article
Language:English
Subjects:
Animals
Bayes Theorem
Birds - classification
Birds - genetics
Brackish
Breeding
cormorants
D‐loop
Freshwater
inland breeding
Likelihood Functions
Marine
Phalacrocorax carbo
Phalacrocorax carbo carbo
Phalacrocorax carbo sinensis
Phylogeny
phylogeography
Polymorphism, Single-Stranded Conformational
population genetics
SSCP
United Kingdom
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Summary:The establishment of cormorant breeding colonies inland within south‐east Britain since 1981 is a matter of major conservation and pest management concern. This study was initiated to investigate the subspecific origin of two recently established breeding colonies. The analysis examined sequence variation of the control (D‐loop) region of the mitochondrial genome. Samples of tissue were obtained from 334 individuals from across the species range in western Europe from both subspecies (Phalacrocorax carbo carbo and P. c. sinensis) and 84 birds from two inland breeding colonies in Britain. Single‐strand conformation polymorphism (SSCP) was used to assess mitochondrial variation among samples, revealing four haplotypes. The samples from the traditional breeding colonies clustered into three distinct phylogeographic groupings: Norway–Scotland, Wales–England–Iles des Chausey and the rest of Continental Europe. These results only partly agree with the traditional subspecific taxonomic groupings and are slightly at variance with results using microsatellite DNA frequencies, and a hypothesis using results from both studies is advanced. The subspecific origin of the inland colonies was investigated using maximum likelihood and Bayesian models.
ISSN:0018-067X
1365-2540
0018-067X
DOI:10.1046/j.1365-2540.2001.00807.x