Identification_Information: Citation: Citation_Information: Originator: US Geological Survey and Canadian Wildlife Service Publication_Date: Unknown Title: Arctic Survey Geospatial_Data_Presentation_Form: Description: Abstract: Double sampling is used to obtain population estimates of arctic-nesting birds in Alaska and Canada. Rapid surveys are made on a large number of plots randomly distributed throughout arctic Alaska and Canada. Intensive surveys are made on a subsample of the plots to obtain detection rates, which are used to calibrate results from rapidly surveyed plots. Purpose: The primary goals are to estimate and monitor population size, help establish causes of trends, and improve our knowledge of distribution and habitat relationships. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1998 Ending_Date: 2006 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Spatial_Domain: Description_of_Geographic_Extent: The study area is the arctic portion of North America, as delineated on the Circumpolar Arctic Vegetation Map. Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: shorebirds Theme_Keyword: PRISM Theme_Keyword: statistical methods Theme_Keyword: trends Place: Place_Keyword_Thesaurus: None Place_Keyword: Arctic Access_Constraints: AKN Level 1 Use_Constraints: AKN Level 1 Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jonathan Bart Contact_Organization: US Geological Survey Contact_Address: Address_Type: mailing Address: 970 Lusk Street City: Boise State_or_Province: Idaho Postal_Code: 83706 Country: USA Contact_Voice_Telephone: 208-426-5216 Contact_Electronic_Mail_Address: jon_bart@usgs.gov Data_Set_Credit: Jonathan Bart Forest and Rangelands Ecosystem Science Center US Geological Survey 970 Lusk Street Boise, Idaho 83706 208-426-5216 Vicky Johnston Canadian Wildlife Service 3rd Floor, Diamond Plaza 5204-50th Avenue Yellowknife, NWT X1A 1E2 Tel: 867-669-4767 Paul Smith, Canadian Wildlife Service, Ottawa, Ontario Ann Manning, Forest and Rangelands Ecosystem Science Center, US Geological Survey, Boise, Idaho Jennie Rausch, Canadian Wildlife Service, Yellowknife, Northwest Territories Stephen Brown, Manomet Center for Conservation Metadata_Reference_Information: Metadata_Date: 20080826 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Contact_Address: Address_Type: City: State_or_Province: Postal_Code: Contact_Voice_Telephone: Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001.1-1999