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The Alaska Swan Survey Protocol was first produced by MBM-AK sometime in the 1980s to describe a standardized method of conducting aerial swan surveys in Alaska. It was last updated in 2007. The protocol was not exclusive to the statewide Alaska Trumpeter Swan Surveys described in these metadata; however, it did generally describe these surveys’ flying technique and data collection methods.
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The standard operating procedures (SOP) document for the overall WBPHS, including the Alaska strata, was updated by USFWS Division of Migratory Bird Management Branch of Migratory Bird Surveys on 21 April 2022. This SOP applies to all survey crews, including Alaska’s.
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This collection comprises the log files that accompany the quality-controlled (QC) WBPHS-AK transcribed bird-observation data files. The log files were produced when the original (“raw”) transcribed data were run through the QC process via the “Greenlight” script within the R package “AKaerial” (available at github.com/USFWS/AKaerial). The log files describe any changes that were made to the raw transcribed data during the QC process. There is one log file for each QC transcribed data file: WBPHS_YYYY_QCLog_OOO.html, where YYYY=Year and OOO=Observer initials.
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This collection comprises the memoranda that have been produced annually since 2012 by MBM-Alaska for the Pacific Flyway to report abundance indices of lesser Canada geese, Taverner’s cackling geese, Western Population tundra swans, and trumpeter swans. The abundance indices of lesser Canada Geese and trumpeter swans were derived solely from WBPHS_AK data. Indices of Western Population tundra swans were derived from data collected during two MBM-AK surveys: WBPHS_AK and the Yukon-Kuskokwim Delta Coastal Zone Survey. Taverner’s cackling goose indices were derived from three MBM-AK surveys: WBPHS_AK, the Yukon-Kuskokwim Delta Coastal Zone Survey, and the Arctic Coastal Plain Survey. For further information on these...
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Starting in 2003, a digital survey notes file was created each year upon completion of the WBPHS_AK survey to document certain logistics information. The file format evolved over time; files from 2003 through 2009 are text files, whereas files from 2010 to present are Microsoft Excel files. This archived collection comprises the set of digital survey notes created from 2003 to present.
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2010_TRUS_Optimal_Allocation.xls and 2015_TRUS_Optimal_Allocation.xlsx are Excel files that were created and used by MBM-AK to to determine the survey area stratification and sample selection for the 2010 and 2015 Alaska Trumpeter Swan Surveys. The 2010 and 2015 surveys were a stratified random-sample plot design with optimal allocation of sampling effort to minimize cost for a fixed variance. Note: The Excel files contain multiple worksheets, with each worksheet being a step in the process that progressed from the left-most worksheet towards the right.
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Currently, the Aviatrix software produces data that is recorded and associated with each trigger point, but does not connect data from the camera (i.e., camera name) to these records. In order to calculate area for each photo that contains STEI, we would like to know the altitude of that photo. Therefore, we need to combine the Aviatrix data for each trigger point to the photo name that was taken at that trigger point. Spatial data collected by the GPS in the Aviatrix triggerbox along with camera and computer clock data is assembled to align spatial data (altitude and position data) with the imagery, mainly in order to assign the correct altitude to the images to calculate ground area within the photo frame.To do...
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Several photo ‘observers’ examine images and enter data based on what they see in the imagery. The first observer, ‘PRI’ = the primary observer, looks at all photos taken and records bird presence/absence. The ‘SEC’ = the secondary observer, speciates the birds found by the primary observer, and counts the Steller’s eiders. The ‘TER’ = the tertiary observer, reviews the speciation and/or counts of the secondary observer as a check. The ‘ERR’ = the error rate observer, independently records bird presence/absence in a subset (10%) of the photos that the primary observer viewed as a check on the PRI accuracy. When all are complete, they are combined into the final data table, Combined Datasheet_STEI Overhead, that...
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A survey area polygon was constructed and used to create a series of survey transects bounded by the polygon. The polygon was created in ArcGIS (can also be built in Google Maps or Google Earth). The AeroScientific software FlightPlanner used this polygon to create transects within the polygon. See linked document for detailed instructions for these processes. This document is:Construction of STO transects_metadata.docx
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This collection of files, YYYY_Estimates_By_Quad.csv (where YYYY = survey year), presents the Alaska Trumpeter Swan Survey abundance estimates by U.S. Geological Survey 1:63,360 quad, 1968 through 2005.
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After each survey, camera memory cards are downloaded and organized into folders by YEAR, SURVEY, CAMERA, BATCH, PHOTO#. Then, files are renamed to give every file in every survey and every year a unique name. Naming convention consists of: survey name, survey year, month and day, survey number, camera number, batch number, photo number. Thus, all photo names will follow the convention: STO18_1004_S1C1B1_0237.JPG which in this case = STEI Overhead in 2018, Month & Day, Survey#, Camera#, Batch#, Image#. These file names are entered into a spreadsheet along with other variables in preparation for analysis.As photos are analyzed by various observers, different subsets of photos are placed in separate folders for observers...
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The document reviews the theory of distance sampling, important assumptions, and case studies where distance sampling has been used. Reported in this document are results from some power analysis to guide design of a pilot study. This report became part of a Master’s thesis project and was used for development of a field protocol.
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This document is a report on a project for a Masters student thesis to understand distance sampling to estimate eider and goose nest density. The abstract from the report is:The U.S. Fish and Wildlife Service currently conducts annual surveys to estimate bird nest abundanceon the Yukon-Kuskokwim Delta, Alaska. The current method involves intensive searching on large plots withthe goal of finding every nest on the plot. Distance sampling is a well-established transect-based methodto estimate density or abundance that accounts for imperfect detection of objects. It relies on estimatingthe probability of detecting an object given its distance from the transect line, or the detection function.Simulations were done using...
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The Alaska Swan Survey Protocol was first developed by MBM-AK (James G. King, retired) in the 1960s to describe a standardized method of conducting aerial swan surveys in Alaska. Documentation of the protocol was last updated in 2007. All the swan survey data in the Alaska Swan Database were collected using this protocol.
    map background search result map search result map Alaska Swan Survey Protocol 2007 Combining Aviatrix with Photo Data for Steller's Eider Overhead Survey Observer Analysis Instructional Protocol for Steller's Eider Overhead Survey Photo Files Organization and Preservation Protocol for Steller's Eider Overhead Survey Transect Design Protocol for Steller's Eider Overhead Survey in Nelson Lagoon, Alaska Alaska Trumpeter Swan Survey Design 2010-2015: Optimal Allocation Worksheets Alaska Trumpeter Swan Survey Protocol 2007 Alaska Trumpeter Swan Survey Estimates by Quad 1968-2005 Memos To Pacific Flyway Council Waterfowl Breeding Population Habitat Survey Alaska Quality Control Log Files Waterfowl Breeding Population Habitat Survey Alaska Survey Notes Waterfowl Breeding Population Habitat Survey Standard Operating Protocol Update 04-21-2022 Alaska Yukon Delta Line Transect Distance Sampling to Estimate Nest Density on the Yukon-Kuskokwim Delta Alaska Yukon Delta Nest Plot Distance Sampling Field Protocol Simulating distance sampling to estimate nest abundance at Alaska Yukon-Kuskokwim Delta Combining Aviatrix with Photo Data for Steller's Eider Overhead Survey Observer Analysis Instructional Protocol for Steller's Eider Overhead Survey Photo Files Organization and Preservation Protocol for Steller's Eider Overhead Survey Transect Design Protocol for Steller's Eider Overhead Survey in Nelson Lagoon, Alaska Simulating distance sampling to estimate nest abundance at Alaska Yukon-Kuskokwim Delta Alaska Yukon Delta Line Transect Distance Sampling to Estimate Nest Density on the Yukon-Kuskokwim Delta Alaska Yukon Delta Nest Plot Distance Sampling Field Protocol Memos To Pacific Flyway Council Waterfowl Breeding Population Habitat Survey Alaska Quality Control Log Files Waterfowl Breeding Population Habitat Survey Alaska Survey Notes Alaska Trumpeter Swan Survey Design 2010-2015: Optimal Allocation Worksheets Alaska Trumpeter Swan Survey Protocol 2007 Alaska Trumpeter Swan Survey Estimates by Quad 1968-2005 Alaska Swan Survey Protocol 2007 Waterfowl Breeding Population Habitat Survey Standard Operating Protocol Update 04-21-2022