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Author: Shawn W. Stephensen Publisher: ISBN: Category : Bird populations Languages : en Pages : 153
Book Description
The Catalog of Alaskan Seabird Colonies was compiled in 1978. As new data made the publication obsolete, a computer database was developed in 1985, which has been updated through revisions. Some census data in the Catalog are old or of low quality and have become unreliable, so new high quality seabird colony data must be gathered and entered into the database. This plan describes seabird colony data and defines criteria that are used to select and prioritize colonies. Lists and maps of colonies that need to be recensused are provided with scores that indicate how unreliable the census data are.
Author: Shawn W. Stephensen Publisher: ISBN: Category : Bird populations Languages : en Pages : 153
Book Description
The Catalog of Alaskan Seabird Colonies was compiled in 1978. As new data made the publication obsolete, a computer database was developed in 1985, which has been updated through revisions. Some census data in the Catalog are old or of low quality and have become unreliable, so new high quality seabird colony data must be gathered and entered into the database. This plan describes seabird colony data and defines criteria that are used to select and prioritize colonies. Lists and maps of colonies that need to be recensused are provided with scores that indicate how unreliable the census data are.
Author: Publisher: ISBN: Category : Bird populations Languages : en Pages : 104
Book Description
"Compilation of seabird species accounts for all seabirds breeding in Alaska and five important nonbreeders. Conservation status, life history, distribution, population size and trends, conservation concerns, and recommended management actions are included in the accounts"--Leaf i.
Author: U.S. Fish and Wildlife Service. Office of Migratory Bird Management Publisher: ISBN: Category : Animal colonies Languages : en Pages : 54
Book Description
"This manual describes how to census seabirds in coastal colonies of Alaska and Russia Far East. There are approximately 50 million breeding seabirds in Alaska and 30 million in Russia Far East ... Precise information on the location, species, and breeding populations of colonies is extremely important for research and for the conservation of seabirds."--Page 1.
Author: Shawn W. Stephensen
Author: Shawn W. Stephensen
Author: John L. Trapp
Author: 
Author: 
Author: Shawn W. Stephensen
Author: U.S. Fish and Wildlife Service. Office of Migratory Bird Management
Author: U.S. Fish and Wildlife Service. Region 7
Author: Arthur L. Sowls
Author: 
Author: Shawn W. Stephensen