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Project on the Population Dynamics of the Thick-billed Murre, Uria Lomvia
Anthony J. GastonCanadian Wildlife Service. Headquarters
其他書名
Interim Report on Studies at Coats Island
出版Environment Canada, Canadian Wildlife Service, 1991
ISBN06621885869780662188582
URLhttp://books.google.com.hk/books?id=wyb1SgAACAAJ&hl=&source=gbs_api
註釋Thick-billed Murres from all the Canadian colonies, as well as those in west Greenland, winter in Newfoundland and Labrador waters, where large numbers are shot between September and March. Studies are being carried out to establish whether this hunting might be the cause of observed declines. Since 1984, a team has visited Coats Island every summer to band young thick-billed Murres before they leave the cliffs. Banded birds are then tracked to Newfoundland and bands are recovered from those shot. They are also tracked back in the colony where breeding is observed. This report is an interim statement of the project's achievements from 1987-90, focusing on the demographic study and aspects of breeding biology that have been monitored every year.