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WBPHS Visibility Correction Factors

Report Generated: 2024-08-13 14:56:07.434780219 +0000

Metadata Source

Metadata schema: mdJson
Schema version: 2.8.1
Contacts
U.S. Fish and Wildlife Service
Contact ID: 90bb1dce-d6f6-49c9-bb8d-83e2f684a996
is Organization: true
Meghan Eyler
Contact ID: 44c3b730-271b-419a-9d73-53b82bf431cc
is Organization: false
Contact Type: federal
is Member of: U.S. Fish and Wildlife Service
Address
11510 American Holly Drive
Laurel, Maryland 20708
USA
Address Type: physical
Address Type: mailing
Phone
Phone Name: phone
Phone Number: 301-497-5882
Service Types: voice
Electronic Mail: meghan_eyler@fws.gov
Metadata Information
Metadata Status: completed
Metadata Identifier
Identifier: 23336a33-758c-4a20-b5bb-8f938dd55bea
Namespace: urn:uuid
Metadata Locales
Default Locale
Language Code: eng
Country Code: USA
Character Encoding: UTF-8
Metadata Contacts
pointOfContact
Meghan Eyler
Contact ID: 44c3b730-271b-419a-9d73-53b82bf431cc
Contact Type: federal
Metadata Dates
Date: creation: 2024-07-19T04:00:00.671+00:00
Metadata Maintenance
Frequency: asNeeded
Resource Information
Resource Type: tabularDataset Name: WBPHS Visibility Correction Factors
Status: onGoing
Citation
Title: WBPHS Visibility Correction Factors
Date: creation: 2024-07-19T04:00:00.630+00:00
Date: publication: 2024-07-19T04:00:00.505+00:00
pointOfContact
Meghan Eyler
Contact ID: 44c3b730-271b-419a-9d73-53b82bf431cc
Contact Type: federal
originator
U.S. Fish and Wildlife Service
Contact ID: 90bb1dce-d6f6-49c9-bb8d-83e2f684a996
Abstract
Full Abstract:
The Visibility Correction Factors (VCFs) from 1955 to 2024 for the Traditional Survey Area of the Waterfowl Breeding Population and Habitat Survey. This data view presents the VCF applied for a survey species in a specific stratum and year along with the standard error of the VCF. There are no VCFs for 2020-21.

Resource Contacts
pointOfContact
Meghan Eyler
Contact ID: 44c3b730-271b-419a-9d73-53b82bf431cc
Contact Type: federal
Temporal Information
Time Period
Start Datetime: 1955-05-01T04:00:00.000+00:00
End Datetime: 2024-06-12T04:00:00.000+00:00
Spatial, Temporal, and Vertical Extents
Extent
Geographic Extent
Geographic Extent Encompasses Data: true
Geographic Description:
The traditional area of the Waterfowl Breeding Population and Habitat Survey, which has been surveyed in its current design since 1974 and extends from coastal Alaska through the boreal forest to western Ontario, and through the parklands and prairies south to South Dakota (strata 1-18, 20-50, and 75-77).
Map
User Provided Bounding Box
West Longitude: -167.606
East Longitude: -85.811
South Latitude: 41.568
North Latitude: 70.63
Keywords
theme
  • Aerial survey
  • Population survey
  • stratum
  • transect design
  • segment
Thesaurus
Title: WBPHS Visibility Correction Factors - theme
Identifier
Identifier: custom
taxon
  • American Black Duck
  • Green-winged Teal
  • American Coot
  • American Wigeon
  • Bufflehead
  • Blue-winged Teal
  • Canada Goose
  • Canvasback
  • Gadwall
  • Mallard
  • Northern Pintail
  • Northern Shoveler
  • Redhead
  • Ring-necked Duck
  • Ruddy Duck
  • Goldeneye
  • Merganser
  • Scaup
  • Potential breeding pond
Thesaurus
Title: WBPHS Visibility Correction Factors - taxon
Identifier
Identifier: custom
place
  • Alaska
  • Alberta
  • Canada
  • Manitoba
  • Montana
  • North Dakota
  • Northcentral United States
  • Northwest Territories
  • Ontario
  • Parkland Canada
  • Prairie Canada
  • Prairie Pothole Region
  • Saskatchewan
  • South Dakota
  • United States
  • Yukon Territory
Thesaurus
Title: WBPHS Visibility Correction Factors - place
Identifier
Identifier: custom
Taxonomy
Taxonomic Structure 1
Taxonomic Classification
Taxonomic ID: 202423
Taxonomic Level: Kingdom
Taxonomic Name: Animalia
Sub-Classification
Taxonomic ID: 914154
Taxonomic Level: Subkingdom
Taxonomic Name: Bilateria
Sub-Classification
Taxonomic ID: 914156
Taxonomic Level: Infrakingdom
Taxonomic Name: Deuterostomia
Sub-Classification
Taxonomic ID: 158852
Taxonomic Level: Phylum
Taxonomic Name: Chordata
Sub-Classification
Taxonomic ID: 331030
Taxonomic Level: Subphylum
Taxonomic Name: Vertebrata
Sub-Classification
Taxonomic ID: 914179
Taxonomic Level: Infraphylum
Taxonomic Name: Gnathostomata
Sub-Classification
Taxonomic ID: 914181
Taxonomic Level: Superclass
Taxonomic Name: Tetrapoda
Sub-Classification
Taxonomic ID: 174371
Taxonomic Level: Class
Taxonomic Name: Aves
Sub-Classification
Taxonomic ID: 174982
Taxonomic Level: Order
Taxonomic Name: Anseriformes
Sub-Classification
Taxonomic ID: 174983
Taxonomic Level: Family
Taxonomic Name: Anatidae
Sub-Classification
Taxonomic ID: 175062
Taxonomic Level: Genus
Taxonomic Name: Anas
Sub-Classification
Taxonomic ID: 175068
Taxonomic Level: Species
Taxonomic Name: Anas rubripes
Common Names:
  • American Black Duck
  • Canard noir
  • Ánade sombrío
  • pato-escuro-americano
Sub-Classification
Taxonomic ID: 175081
Taxonomic Level: Species
Taxonomic Name: Anas crecca
Common Names:
  • Eurasian Teal
  • Cerceta ala verde
  • Green-winged Teal
  • Sarcelle d'hiver
  • Cerceta común
  • marrequinha
  • Common Teal
Sub-Classification
Taxonomic ID: 175063
Taxonomic Level: Species
Taxonomic Name: Anas platyrhynchos
Common Names:
  • Pato de collar
  • Mallard
  • Canard colvert
  • Ánade azulón
  • pato-real
Sub-Classification
Taxonomic ID: 175074
Taxonomic Level: Species
Taxonomic Name: Anas acuta
Common Names:
  • Pato golondrino
  • Northern Pintail
  • Canard pilet
  • Ánade rabudo norteño
  • arrabio
Sub-Classification
Taxonomic ID: 1192564
Taxonomic Level: Genus
Taxonomic Name: Mareca
Sub-Classification
Taxonomic ID: 175095
Taxonomic Level: Species
Taxonomic Name: Mareca americana
Common Names:
  • American Wigeon
  • Canard d'Amérique
  • Silbón americano
  • piadeira-americano
Sub-Classification
Taxonomic ID: 175140
Taxonomic Level: Genus
Taxonomic Name: Bucephala
Sub-Classification
Taxonomic ID: 175145
Taxonomic Level: Species
Taxonomic Name: Bucephala albeola
Common Names:
  • Pato monja
  • Bufflehead
  • Petit Garrot
  • Porrón albeola
  • olho-dourado-de-touca
Sub-Classification
Taxonomic ID: 174998
Taxonomic Level: Genus
Taxonomic Name: Branta
Sub-Classification
Taxonomic ID: 174999
Taxonomic Level: Species
Taxonomic Name: Branta canadensis
Common Names:
  • Ganso canadiense
  • Canada Goose
  • Bernache du Canada
  • Barnacla canadiense grande
  • ganso-do-canadá
Sub-Classification
Taxonomic ID: 175124
Taxonomic Level: Genus
Taxonomic Name: Aythya
Sub-Classification
Taxonomic ID: 175129
Taxonomic Level: Species
Taxonomic Name: Aythya valisineria
Common Names:
  • Pato coacoxtle
  • Canvasback
  • Fuligule à dos blanc
  • Porrón coacoxtle
  • zarro-grande
Sub-Classification
Taxonomic ID: 175125
Taxonomic Level: Species
Taxonomic Name: Aythya americana
Common Names:
  • Pato cabeza roja
  • Redhead
  • Fuligule à tête rouge
  • Porrón americano
  • zarro-americano
Sub-Classification
Taxonomic ID: 175128
Taxonomic Level: Species
Taxonomic Name: Aythya collaris
Common Names:
  • Pato pico anillado
  • Ring-necked Duck
  • Fuligule à collier
  • Porrón acollarado
  • caturro
Sub-Classification
Taxonomic ID: 175174
Taxonomic Level: Genus
Taxonomic Name: Oxyura
Sub-Classification
Taxonomic ID: 175175
Taxonomic Level: Species
Taxonomic Name: Oxyura jamaicensis
Common Names:
  • Pato tepalcate
  • Ruddy Duck
  • Érismature rousse
  • Malvasía canela
  • pato-rabo-alçado-americano
Sub-Classification
Taxonomic ID: 176147
Taxonomic Level: Order
Taxonomic Name: Gruiformes
Sub-Classification
Taxonomic ID: 176205
Taxonomic Level: Family
Taxonomic Name: Rallidae
Sub-Classification
Taxonomic ID: 176289
Taxonomic Level: Genus
Taxonomic Name: Fulica
Sub-Classification
Taxonomic ID: 176292
Taxonomic Level: Species
Taxonomic Name: Fulica americana
Common Names:
  • Gallareta americana
  • American Coot
  • foulque d'Amérique
Taxonomic Classification
Taxonomic Level: generic
Taxonomic Name: common
Common Names:
  • Blue-winged Teal
  • Gadwall
  • Northern Shoveler
  • Goldeneye
  • Merganser
  • Scaup
Classification System
Integrated Taxonomic Information System (ITIS)
Title: Integrated Taxonomic Information System (ITIS)
Date: transmitted: 2024-07-19
Online Resource
URI: https://www.itis.gov
Name: ITIS website
Description: ITIS contains taxonomic information on plants, animals, fungi, and microbes of North America and the world.
Function: information
Protocol: HTTPS
Graphic Overview
Name: itis_logo.jpg
Type: JPEG
Online Link
URI: https://itis.gov/Static/images/itis_logo.jpg
Presentation Form: webService
Presentation Form: webSite
Other Details: Retrieved from the Integrated Taxonomic Information System on-line database, https://www.itis.gov.
Constraints
Use Constraint
Constraint Type: use
Limitation:
The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee. As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.
Resource Locales
Default Locale
Language Code: eng
Country Code: USA
Character Encoding: UTF-8
Supplemental Information
Resource Maintenance
Frequency: annually
Supplemental Information:
The survey was not flown in 2020 or 2021. In the prairie region of the traditional survey area, aerial waterfowl counts are corrected annually for visibility bias by conducting ground counts along a subsample of survey segments. Pre-determined air-ground segments are systematically located throughout each stratum to represent the varying habitat and wetland conditions of the area. The ground counts of both ponds and waterfowl are assumed correct and visibility correction factors are determined by comparing ground counts to aerial counts along the air-ground segments. Similar to the aerial crew, the ground crew also counts waterfowl on both sides of the transect. As a result, VCFs can be determined for both the pilot and observer. To calculate VCFs for each species, the pilot and observer counts are summed and compared to the ground counts on both sides of the segment. For the aerial data, only observers count ponds. All air-ground data is pooled from all strata within the crew area to reduce the variance associated with small sample sizes. If needed, data for some species may be pooled among years as needed, to reduce variability. Please note: the same Visibility Correction Factor (VCF) is applied to multiple strata in each year, depending on the survey species. Some VCFs are replicated over years, meaning that not each year has a unique VCF for a survey species. The 4-letter American Ornithologists Union species alpha codes present in this data view are: ABDU = American Black Duck, AGWT = Green-winged Teal, AMCO = American Coot, AMWI = American Wigeon, BUFF = Bufflehead, BWTE = Blue-winged Teal, CAGO = Canada Goose, CANV = Canvasback, GADW = Gadwall, MALL = Mallard, NOPI = Northern Pintail, NSHO = Northern Shoveler, REDH = Redhead, RNDU = Ring-necked Duck, and RUDU = Ruddy Duck. The modified USFWS species group alpha codes in this data view are: GOLD = Goldeneye spp., MERG = Merganser spp., SCAU = Scaup spp., and POND = Potential breeding pond.
Resource Distribution
Distribution
Description:
The Visibility Correction Factors from the Waterfowl Breeding Population and Habitat Survey.
Liability Statement:
The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee. As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.
Data Dictionaries
Dictionary
Subject: tabularDataset
Domains
survey_species
Domain Type: ENUMERATED
ID: 8863e9a6-0446-4fe9-b589-c507cf8b44db
Name: survey_species
Code: survey_species
Description:
The survey species definitions.
AGWT
Name: AGWT
Value: AGWT
Definition:
Green-winged Teal
AMWI
Name: AMWI
Value: AMWI
Definition:
American Wigeon
BUFF
Name: BUFF
Value: BUFF
Definition:
Bufflehead
CAGO
Name: CAGO
Value: CAGO
Definition:
Canada Goose
GOLD
Name: GOLD
Value: GOLD
Definition:
Goldeneye spp.
MALL
Name: MALL
Value: MALL
Definition:
Mallard
MERG
Name: MERG
Value: MERG
Definition:
Merganser spp.
RNDU
Name: RNDU
Value: RNDU
Definition:
Ring-necked Duck
SCAU
Name: SCAU
Value: SCAU
Definition:
Scaup spp.
BWTE
Name: BWTE
Value: BWTE
Definition:
Blue-winged Teal
CANV
Name: CANV
Value: CANV
Definition:
Canvasback
GADW
Name: GADW
Value: GADW
Definition:
Gadwall
NOPI
Name: NOPI
Value: NOPI
Definition:
Northern Pintail
NSHO
Name: NSHO
Value: NSHO
Definition:
Northern Shoveler
REDH
Name: REDH
Value: REDH
Definition:
Redhead
AMCO
Name: AMCO
Value: AMCO
Definition:
American Coot
RUDU
Name: RUDU
Value: RUDU
Definition:
Ruddy Duck
ABDU
Name: ABDU
Value: ABDU
Definition:
American Black Duck
POND
Name: POND
Value: POND
Definition:
Potential breeding pond
Entities
WBPHS Visibility Correction Factors
ID: 521379c9-e21e-45da-a9a8-7eb6cafad7c0
Name: WBPHS Visibility Correction Factors
Code: WBPHS Visibility Correction Factors
Definition:
The visibility correction factors for the Waterfowl Breeding Population and Habitat Survey.
Number of Header Lines: 1
Attribute: survey_year
Name: survey_year
Code: survey_year
Definition:
The survey year (YYYY).
Datatype: smallint
Allow NULL Values: false
Attribute Values Must Be Unique: true
Value is Case Sensitive: false
Attribute: stratum
Name: stratum
Code: stratum
Definition:
Numeric code indicating the survey stratum. Strata are polygons defined by topographic, political, or other boundaries. Multiple survey transects are located in each stratum and population estimates and other summaries are calculated by stratum.
Datatype: tinyint
Allow NULL Values: false
Attribute Values Must Be Unique: true
Value is Case Sensitive: false
Attribute: survey_species
Name: survey_species
Code: survey_species
Definition:
4-letter American Ornithologists Union species alpha code or USFWS species group alpha code. Some species are difficult to differentiate from the air or are reported as a combined species and thus for analysis are grouped together. These USFWS modified alpha codes are EIDE (Eider spp.), GOLD (Goldeneye spp.), MERG (Merganser spp.), SCAU (Scaup spp.), SCOT (Scoter spp.), SWAN (Swan spp.), and POND (potential breeding pond).
Datatype: character varying
Allow NULL Values: false
Attribute Values Must Be Unique: true
Value is Case Sensitive: false
Domain ID: 8863e9a6-0446-4fe9-b589-c507cf8b44db
Attribute: VCF
Name: VCF
Code: VCF
Definition:
The Visibility Correction Factor (VCF). This correction factor is the sum of total indicated birds (or total ponds) counted on the ground divided by the total indicated birds (or total ponds) counted by the aerial observers.
Datatype: decimal
Allow NULL Values: false
Attribute Values Must Be Unique: true
Value is Case Sensitive: false
Attribute: standard_error_VCF
Name: standard_error_VCF
Code: standard_error_VCF
Definition:
The standard error of the Visibility Correction Factor (VCF) calculated using the standard design-based estimator for a ratio.
Datatype: decimal
Allow NULL Values: false
Attribute Values Must Be Unique: true
Value is Case Sensitive: false
Citation
Title: WBPHS Visibility Correction Factors - data dictionary
Date: creation: 2024-07-19T16:18:57.078+00:00
pointOfContact
Meghan Eyler
Contact ID: 44c3b730-271b-419a-9d73-53b82bf431cc
Contact Type: federal
Recommended Use: This dictionary is used to define the attributes within the WBPHS Visibility Correction Factors.
Dictionary Included with Dataset?: false