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Folders: ROOT > ScienceBase Catalog > US Fish and Wildlife Service (USFWS) > Programs > Migratory Birds > Region 7 U.S. Fish and Wildlife Service Migratory Bird Management > USFWS MBM Alaska Waterfowl Program ( Show direct descendants )

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This dataset contains the swan data recorded during the 1985 Alaska Trumpeter Swan Survey. The 1985 survey was designed to census the entire Alaska trumpeter swan summering range.
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This dataset contains the swan data recorded during the 2015 Alaska Trumpeter Swan Survey. The 2015 survey was a stratified random-sample plot design with optimal allocation of sampling effort to minimize cost for a fixed variance.
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This dataset contains the swan data recorded during the 1980 Alaska Trumpeter Swan Survey. The 1980 survey was designed to census the entire Alaska trumpeter swan summering range.
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This dataset contains the swan data recorded during the 1990 Alaska Trumpeter Swan Survey. The 1990 survey was designed to census the entire Alaska trumpeter swan summering range.
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Originally created by Brad Shults, the GitHub repository was created for markdown code used to quality control survey data and create annual survey reports beginning in 2016. The repository can be found on GitHub (‘https://github.com/bsshults/Teshekpuk-Lake-Molt’). A copy of the master branch that was last committed by user “bsshults” (Brad Shults) on 2/24/20 was downloaded by Maggie Harings on 6/29/21 and stored on the Alaska Regional Data Repository (‘GitHub_Annual_Report_Code’). General file naming structure for repository files is: ‘TMGSurvey_Master_[surveyYear]’ Files ending in the file extension ‘.Rmd’ are used to conduct some quality control and data tidying for original survey data. These files contain comments...
Categories: Data, Software; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ALPINE/TUNDRA, ANIMALS/VERTEBRATES, ARCTIC TUNDRA, BIOLOGICAL CLASSIFICATION, BIOLOGICAL RECORDS, All tags...
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This data set provides the coordinates of plot centers, the area of each plot, plot type, and search history of the plot. Plots in this data set are linked through the combination of plot number and year provided in this file. Plot search history indicates if a plot was searched for nests. Plot shape and area has varied through time. After 1985, plot were selected by stratified random sampling, and after 1998 by simple random sampling from the area defined in ‘YKD Nest Plot Study Area Boundary.’ Plot shape has also varied but after 1998 was generally 1/4 by 1/2 mile.
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...
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This multi-layer GeoPackage contains the YKD Coastal Zone Survey design transects from 1985 to present. The original transects were imported to this SQLite database structure and saved as individual polylines named according to the year they were created (e.g., “main.YK_1985_Trans,” “main.YK_1986_Trans,” “main.YK_1987_Trans,” etc.). The aerial transects were developed systematically from randomly-selected start points and created along constant lines of latitude. The inter-transect spacing in the low, medium, high, and very-high density strata varies so that areas with higher waterfowl density are surveyed more intensively. Though the overall study area never changed, the YKD Survey design was modified several times,...
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This R code (eggs.R) inputs the quality controlled nest card data and (1) performs additional quality control on the egg code data, (2) reformat the eggs data into a tidy file of egg observations, (3) summarizes egg data into yearly means of initiation and hatch date based on incubation model, and (4) writes csv files for tidy egg data (eggs.csv) and yearly nest stats (yearstats.csv).
Categories: Data, Software; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...
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In 2019 a pilot study was conducted to determine the feasibility of using distance sampling to estimate density and population size of goose and eider nests on the Yukon-Kuskokwim Delta (YKD). Distance sampling (Buckland et al. 2001) is a common and well-understood method to estimate wildlife population size or density, especially for sparse and hard-to-detect populations. A main advantage of distance sampling is that it accounts for imperfect detection and gives precise estimates for a given level of effort relative to other methods. The objectives for the pilot project in 2019 was to (1) determine if distance sampling is feasible on the YKD, (2) determine what aspects of the field protocol need to be changed or...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...
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Dusky Canada geese (Branta canadensis occidentalis) comprise one of the smallest populations of geese in North America and their breeding range is limited to Prince William Sound, primarily the Copper River Delta, and Middleton Island, Alaska. The Alaska Region of Migratory Bird Management initiated an aerial breeding pair survey on the Copper River Delta in 1986 after reported declines in the abundance of dusky Canada geese on their nesting and wintering grounds. Since 2008, the Pacific Flyway Council uses results of the aerial breeding pair survey, together with Middleton Island ground counts conducted by the Alaska Department of Fish and Game, as a management index to determine optimal hunting regulations. Survey...
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Virtually the entire Pacific population of brant is present at the Izembek Lagoon Complex (Izembek and Kinzarof lagoons, Morshovi and Bechevin bays) from early October through November every year (Reed et al. 1989., Boyd et al. 2013, Lewis et al. 2020) providing an efficient period to estimate abundance. The U.S. Fish and Wildlife Service has conducted low-level (150 feet) aerial ocular surveys of brant to estimate abundance at the Izembek Lagoon Complex during fall since 1975 (Wilson 2019), but bias in visual flock size estimates, species mis-identification in large and mixed-flocks, and disturbance from low-level flights lead to miss or double counting of flocks and can all bias population estimates. Moreover,...
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Duck banding data is integral to the Adaptive Harvest Management (AHM) process that uses both band recovery data and aerial breeding population survey data to establish hunting regulatory packages each year. Mallard banding in Alaska is one component of the process to set hunting regulations for ducks in the Pacific Flyway by providing harvest rate estimates for the Western Mallard AHM model (U.S. Fish and Wildlife Service 2021). Harvest rate is used in coordination with breeding population size estimates from the Waterfowl Breeding Population and Habitat Survey to determine the optimal regulatory strategy (liberal, moderate, restrictive, or closed) for dabbling ducks in the Pacific Flyway. Each regulatory alternative...
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Duck banding data is integral to the Adaptive Harvest Management (AHM) process that uses both band recovery data and aerial breeding population survey data to establish hunting regulatory packages each year. Mallard banding in Alaska is one component of the process to set hunting regulations for ducks in the Pacific Flyway by providing harvest rate estimates for the Western Mallard AHM model (U.S. Fish and Wildlife Service 2021). Harvest rate is used in coordination with breeding population size estimates from the Waterfowl Breeding Population and Habitat Survey to determine the optimal regulatory strategy (liberal, moderate, restrictive, or closed) for dabbling ducks in the Pacific Flyway. Each regulatory alternative...
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This dataset, AirWin.csv, contains the raw transcribed bird and marine mammal data collected during the 1997-2002 aerial winter Southeast Alaska Nearshore Waterbird Survey. Note that this dataset contains records of species that were omitted in the final, quality-controlled data (WinterSimplified.csv), due to detection issues or inappropriateness of the survey design for those species.
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We have used the software program ‘ImageJ’ to count birds in the overhead photographs taken for the STEI_Overhead survey. Following is a description of this software. Links to the ImageJ guide and specific detailed instructions for counting these photographs are linked to and include:Counting sea ducks with ImageJ.docxImageJ_user-guide_2020.pdfAs well as another quick guideSoftware description ImageJ is a Java-based image processing program developed at the NIH and LOCI. ImageJ was designed with an open architecture that provides extensibility via Java plugins and recordable macros. ImageJ can be run as an online applet, a downloadable application, or on any computer with a Java 5 or later virtual machine. The source...
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This is a table that contains all eight Aviatrix, GPS & camera data fields, including camera angle, transect number, sequence, computer time, camera time, latitude, longitude, and altitude. This table will be joined with the table that contains survey and file data and observer results to comprise the final data table that will be run through the bird analyses.
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This dataset contains the swan data recorded during the 2010 Alaska Trumpeter Swan Survey. The 2010 survey was a stratified random-sample plot design with optimal allocation of sampling effort to minimize cost for a fixed variance.
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This dataset contains the swan data recorded during the 1975 Alaska Trumpeter Swan Survey. The 1975 survey was designed to census the entire Alaska trumpeter swan summering range.
map background search result map search result map Alaska Mallard Banding, Palmer Hay Flats State Game Refuge Southeast Alaska Nearshore Winter Air Raw Transcribed Data 1997-2002 Counting Birds in Photographs Protocol with ImageJ Software for Steller's Eider Overhead Survey Spatial Data for Steller's Eider Overhead Survey at Nelson Lagoon, Alaska Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates 2010 Alaska Trumpeter Swan Survey Data 1985 Alaska Trumpeter Swan Survey Data 1975 Alaska Trumpeter Swan Survey Data 2015 Alaska Trumpeter Swan Survey Data 1980 Alaska Trumpeter Swan Survey Data 1990 Alaska Trumpeter Swan Survey Data Teshekpuk Lake Alaska Molting Goose GitHub Markdown Code for Annual Survey Reports Alaska Yukon Delta Nest Distance Sampling Pilot Project Alaska Yukon Delta Plot Location, Size, and Search Historic Data 1985 - 2019 Alaska Yukon Delta Tidy Eggs data R Code Alaska Yukon-Kuskokwim Delta Aerial Survey Design Transects 2023 Southcentral Alaska Migratory Bird Management Mallard Banding Report Alaska Copper River Delta Aerial Dusky Canada Goose Breeding Pair Survey Design Transects Alaska Izembek Fall Brant Photographic Survey 2023 Alaska Fall Brant Photographic Survey Report Counting Birds in Photographs Protocol with ImageJ Software for Steller's Eider Overhead Survey Spatial Data for Steller's Eider Overhead Survey at Nelson Lagoon, Alaska Alaska Izembek Fall Brant Photographic Survey 2023 Alaska Fall Brant Photographic Survey Report Alaska Copper River Delta Aerial Dusky Canada Goose Breeding Pair Survey Design Transects Alaska Yukon Delta Nest Distance Sampling Pilot Project Teshekpuk Lake Alaska Molting Goose GitHub Markdown Code for Annual Survey Reports Alaska Yukon Delta Plot Location, Size, and Search Historic Data 1985 - 2019 Alaska Yukon Delta Tidy Eggs data R Code Alaska Yukon-Kuskokwim Delta Aerial Survey Design Transects Southeast Alaska Nearshore Winter Air Raw Transcribed Data 1997-2002 Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates 2010 Alaska Trumpeter Swan Survey Data 1985 Alaska Trumpeter Swan Survey Data 1975 Alaska Trumpeter Swan Survey Data 2015 Alaska Trumpeter Swan Survey Data 1980 Alaska Trumpeter Swan Survey Data 1990 Alaska Trumpeter Swan Survey Data