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This report communicates survey results to the Pacific Flyway Representative for incorporation into harvest management reports and regulatory processes. This memorandum also is shared widely with partners outside the FWS. The major products are a memo, automatically generated from an R Quarto document, and 19 comma delimited table files, one for each management index and table in the memo.
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Broad scale banding of midcontinent greater white-fronted geese (MCWFG) is motivated by the Flyway Management Plan objective to maintain optimum harvest opportunity throughout the population range (Central, Mississippi, and Pacific Flyway Councils, 2023). This objective is accomplished by implementing a harvest strategy whereby changes to bag limits and season dates are dependent upon thresholds of abundance and harvest rate. Such estimates are calculated through Lincoln estimation (Lincoln 1930, Alisauskas et al. 2009, Dooley 2023) that requires annual banding. In addition, banding provides a means to identify changes in harvest distribution. The U.S. Fish and Wildlife Service (USFWS) Migratory Bird Management...
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This product contains the transcribed count data from the Alaska Izembek Fall Brant Survey. These data were produced from transcribed georeferenced voice recordings using customized software developed by U.S. Fish & Wildlife.
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This dataset, BoatWin.csv, contains the bird and marine mammal data that was collected during boat-based surveys in the winters of 2000-2002 to double-sample portions of the aerial winter Southeast Alaska Nearshore Waterbird Survey.
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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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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...
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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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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 file contains information on incidental observations of lemmings and potential shorebird predators from 2018 and after by year including date and time, location, and predator or lemming observations. Data were separated by time period due to changes in methodologies that occurred in 2018.The data providers have invested considerable effort in QA/QC, but it is possible that undetected errors remain. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions, or intended use. The originators of this dataset shall not be held liable for improper or incorrect use of the data described and/or contained herein.Potential...
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This file contains information on herbivore fecal counts by year including location, date, and fecal counts. These data were only collected from 2016-2019.The data providers have invested considerable effort in QA/QC, but it is possible that undetected errors remain. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions, or intended use. The originators of this dataset shall not be held liable for improper or incorrect use of the data described and/or contained herein.Potential users of these data should first contact the data authors listed below, as potential biases may occur within the data depending...
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This file provides final processed GPS Pinpoint location data for Semipalmated Sandpipers tagged in 2017. Raw data files were processed with PinPoint Host 2.12.3.27.A portion of these data are available on Movebank (American Golden-Plover: https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study565443493; Dunlin: https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study565467203; Pectoral Sandpiper: https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study560144617; Red Phalarope: https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study917593988; Semipalmated Sandpiper: https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study606508137;...
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This file contains information on blood and tissue samples contained within the inventory including information on sample type, sample location, and associated banding information.These samples are maintained by USFWS and the feather samples in particular are part of the AviSample Network metadata repository (see Brlik et al. 2022. The reuse of avian samples: opportunities, pitfalls, and a solution. Ibis 164:343-349).Additional information for samples collected at Utqiagvik and in association with the tracking project can be found in the Utqiagvik shorebird project (file://ifw7ro-file.fws.doi.net/datamgt/mbm/mbmsh_009_Utqiagvik_shorebird_project) and shorebird tracking study archives (file://ifw7ro-file.fws.doi.net/datamgt/mbm/mbmsh_008_Shorebird_tracking),...
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This file contains banding information on shorebird chicks captured or eggs collected including band number, sex and age, status, date and time captured, location of capture, band combination, morphological measurements, samples collected, and tagging information.A portion of these data are available on the NSF Arctic Data Center (https://doi.org/10.18739/A23R0PT35).The data providers have invested considerable effort in QA/QC, but it is possible that undetected errors remain. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions, or intended use. The originators of this dataset shall not be held liable...
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Differential GPS locations of nest sites. Files organized by year. No manipulation of files has occurred, they are those directly received from Craig Tweedie or Stephen Escarzaga, The University of Texas at El Paso, Department of Biological Sciences.These files can be found in the raw data folder.The data providers have invested considerable effort in QA/QC, but it is possible that undetected errors remain. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions, or intended use. The originators of this dataset shall not be held liable for improper or incorrect use of the data described and/or contained...
map background search result map search result map Alaska Goose, Swan, and Crane Population Indices Memorandum Alaska Midcontinent Greater White-Fronted Goose Banding, Innoko National Wildlife Refuge Alaska Izenbek Fall Brant Aerial Survey data Southeast Alaska Nearshore Winter Boat Data 2000-2002 Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates 1985 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 Utqiagvik Alaska Incidental Observations 2018 to present Utqiagvik Alaska Herbivore Fecal counts Alaska Shorebird Blood Samples Alaska Shorebird Tracking study Pinpoint locations SESA Utqiagvik Alaska Shorebird Chick Banding Utqiagvik Alaska differential GPS Nest Location data Utqiagvik Alaska Incidental Observations 2018 to present Utqiagvik Alaska Herbivore Fecal counts Utqiagvik Alaska Shorebird Chick Banding Utqiagvik Alaska differential GPS Nest Location data Alaska Izenbek Fall Brant Aerial Survey data 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 Midcontinent Greater White-Fronted Goose Banding, Innoko National Wildlife Refuge Alaska Yukon-Kuskokwim Delta Aerial Survey Design Transects Southeast Alaska Nearshore Winter Boat Data 2000-2002 Alaska Trumpeter Swan Survey 2010 Analysis - Abundance Estimates 1985 Alaska Trumpeter Swan Survey Data 2015 Alaska Trumpeter Swan Survey Data 1980 Alaska Trumpeter Swan Survey Data 1990 Alaska Trumpeter Swan Survey Data Alaska Goose, Swan, and Crane Population Indices Memorandum Alaska Shorebird Tracking study Pinpoint locations SESA Alaska Shorebird Blood Samples