hybridization of glaucous gull (larus hyperboreus) and herring gull (larus argentatus) in iceland: mitochondrial and microsatellite data.large white-headed gulls provide an interesting group of birds for studies of hybridization. the group is composed of 20 species of recent origin, often with weak reproductive barriers. here we report the results from a study on the glaucous gull larus hyperboreus, an arctic species which has been breeding in iceland for centuries, and the herring gull larus argentatus which has a wide distribution in europe but colonized iceland in 1920s. previous studies, based on morphological variation indic ...200818508755
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