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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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2010_Analysis_Trends.xlsx is an Excel file created by MBM-AK to analyze data from the 1968-2010 Alaska Trumpeter Swan Surveys to assess trends in the numbers of adult (i.e., white) swans, total swans (i.e., adults and cygnets), and broods, and the percentage of cygnets in the total swan population.
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This multi-layer GeoPackage contains the Alaska Arctic Coastal Plain Aerial Breeding Pair Survey design transects from 2007 to present. The original transects were created as shapefiles and imported to this SQLite database. Transects were saved as individual polylines named according to the year they were created (e.g., “main.ACP_2007_Trans,” “main.ACP_2008_Trans,” “main.ACP_2009_Trans,” etc.). These 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. The current four-year rotating...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIOLOGICAL CLASSIFICATION, BIOSPHERE, All tags...
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This collection contains the quality-control (QC) transcribed data from the Arctic Coastal Plain Aerial Breeding Pair Survey. These QC data were produced from the “raw” data using the R Package “AKaerial.” The raw data were evaluated against the current data standards in the ‘AKaerial data dictionary’ and saved to new QC data files with associated log files that document any changes that were made. The data files in this collection were named using the following naming convention: ACP_YYYY_QCObs_OOOO, where ACP=Arctic Coastal Plain, YYYY=Year, QCObs=Quality control observations, and OOOO=observer’s first initial and last name. These data contain known errors. These data should not be used except as raw input for...
Categories: Data; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIOLOGICAL CLASSIFICATION, All tags...
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R code that takes in the nest capture history data (chdata.csv), reformats it for model fitting in the Bayesian MCMC software JAGS via the R package jagsUI. Various generalized linear mixed models are fit using a Huggins two occasion capture history model structure as in Program Mark. A series of models of increasing complexity are fit and compared using DIC. Model text is written to text files for each model but is generally not used or saved. Posteriors are saved as Rworkspaces or written to text files for use in population estimation (nostpop.R). Code can be run to generate model results and R workspaces/objects to inspect parameter estimates. The primary purpose of this code is to compare various mixed model...
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 collection contains the report log files produced by the R Package “AKaerial” when the QC data were created from the raw transcribed data. The QC log files document the quality control process, data standards, and what changes (if any) were made to the QC data compared to the raw data. Each log file was named following the same file naming conventions: SSSYYYY_QCLog_OOOO, where; YKD=Duck data, YKG=Goose data, YYY=Year, and OOO=observer’s first initial and last name.
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The Pacific Flyway Winter Brant Survey (WBS) has been conducted annually since 1981 as part of a cooperative effort by the U.S. Fish and Wildlife Service, Canadian Wildlife Service, Mexico, and the Pacific U.S. states, to estimate the abundance of the Pacific black brant (Branta bernicla nigricans) in their principal wintering areas along the Pacific Coast (in Baja, Mexico, California, Oregon, Washington, British Columbia, and Alaska). The survey is conducted each winter in January-February by a composite of ground and aerial crews, with the Alaska portion being conducted by the Alaska Region of USFWS Migratory Bird Management. The primary objective of the Alaska survey component is to provide an annual index of...
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This contain a zip folder of comma delimited (CSV) files for each of the 19 tables in the report. It is produced automatically upon compiling the R Quarto code. Column headers are difference than in the tables in the report but order is exactly the same. Refer to the report to understand meaning of the columns. Each cell of the tables contain a management index estimate or the standard error of the estimate.
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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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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 is a csv file that records the full name and initials used in the nest data to identify observers. This file is used during quality control to produce the final data set.
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This is a zip folder of printed emails (pdf) and Word (.docx) files that describe data issues used to during the quality control process. See the file wrangle_2022.R and comments within for actually quality control process.
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This is the field protocol used to instruct crews on data collection while in the field at found nests or dead birds during the 2022 distance sampling season. Used in conjunction with the document Field_Protocol_Distance_Sampling_20220506.pdf, which describes the distance sampling protocol, and the document YDNC_2022_map_20220419.pdf, which describes crew areas within the survey area.
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This is an html report produced from the Rmarkdown code found in the file YKD-sample-frame.Rmd. It presents the design of the, some background and some additional analysis based on the history of the plot survey.
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This is the counting algorithm checkpoint used to automatically detect brant in photos. See https://github.com/agentmorris/usgs-geese for documentation. (usgs-geese-yolov5x-230820-b8-img1280-e200-best.pt)
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Annual assessment of nesting populations of geese on the Yukon-Kuskokwim Delta (YKD) provides information for biologists, participants in cooperative goose management plans, and Pacific Flyway technical committees. A ground-based sampling procedure has been used since 1986 to estimate the number of total nests, active nests, and eggs for cackling geese, emperor geese, greater white-fronted geese, and spectacled eiders. Annual information on the size of the nesting population and potential number of young produced contributes long term data needed to understand goose and eider population ecology and better manage these species. The survey has been the primary method of measuring recovery status for the western population...
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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.
map background search result map search result map Alaska Yukon-Kuskokwim Delta Pond Salinity Survey, 2006-2019 Alaska Arctic Coastal Plain Aerial Breeding Pair Survey Design Transect Geodata Alaska Arctic Coastal Plain Aerial Breeding Pair Survey QC Transcribed Data 2007-present Alaska Izenbek Fall Brant Aerial Survey data Southeast Alaska Nearshore Winter Boat Data 2000-2002 Alaska Trumpeter Swan Survey 2010 Analysis - Trends Waterfowl Breeding Population Habitat Survey Alaska Quality Control Log Files Waterfowl Breeding Population Habitat Survey Standard Operating Protocol Update 04-21-2022 Alaska Yukon Delta Nest Plot Survey Detection Model Fitting Code Using R and JAGS Alaska Yukon Delta Nest Plot Survey Legacy Nest Card Data 1985 - 2019 Alaska Yukon-Kuskokwim Delta Aerial Survey Analysis File Summary Reports Alaska Izembek Brant Winter Aerial Survey Report 2017 2024 Alaska Goose, Swan, and Crane Population Indices Tabular Data Alaska Copper River Delta Aerial Dusky Canada Goose Breeding Pair Survey Analysis Strata Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Observer Initials Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Data Notes Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Data Collection Instructions Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Sample Design Report 2023 Alaska Fall Brant Photographic Survey Design Files Alaska Fall Brant Photographic Survey Counting Model Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Observer Initials Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Data Notes Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Data Collection Instructions Alaska Yukon-Kuskokwim Delta Nesting Waterfowl Distance Sampling Survey 2022 Sample Design Report Alaska Izenbek Fall Brant Aerial Survey data 2023 Alaska Fall Brant Photographic Survey Design Files Alaska Fall Brant Photographic Survey Counting Model Alaska Copper River Delta Aerial Dusky Canada Goose Breeding Pair Survey Analysis Strata Alaska Izembek Brant Winter Aerial Survey Report 2017 Alaska Yukon-Kuskokwim Delta Pond Salinity Survey, 2006-2019 Alaska Yukon Delta Nest Plot Survey Detection Model Fitting Code Using R and JAGS Alaska Yukon Delta Nest Plot Survey Legacy Nest Card Data 1985 - 2019 Alaska Yukon-Kuskokwim Delta Aerial Survey Analysis File Summary Reports Alaska Arctic Coastal Plain Aerial Breeding Pair Survey Design Transect Geodata Alaska Arctic Coastal Plain Aerial Breeding Pair Survey QC Transcribed Data 2007-present Southeast Alaska Nearshore Winter Boat Data 2000-2002 Waterfowl Breeding Population Habitat Survey Alaska Quality Control Log Files Alaska Trumpeter Swan Survey 2010 Analysis - Trends Waterfowl Breeding Population Habitat Survey Standard Operating Protocol Update 04-21-2022 2024 Alaska Goose, Swan, and Crane Population Indices Tabular Data