Sex and Age Composition of Walrus Groups Hauled Out on Ice Floes in the Bering and Chukchi Seas, 2013-2015

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Jay, Chad V. (ORCID: 0000-0002-9559-2189)
Originator: Quakenbush, Lori T.
Originator: Citta, John J.
Originator: Fischbach, Anthony S. (ORCID: 0000-0002-6555-865X)
Originator: Battaile, Brian C.
Publication_Date: 20201214
Title:
Sex and Age Composition of Walrus Groups Hauled Out on Ice Floes in the Bering and Chukchi Seas, 2013-2015
Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Suggested Citation: Jay, C.V., Quakenbush, L.T., Citta, J.J., Fischbach, A.S., Battaile, B.C., 2020, Sex and age composition of walrus groups hauled out on ice floes in the Bering and Chukchi Seas, 2013-2015: U.S. Geological Survey data release, https://doi.org/10.5066/F79K4894
Online_Linkage: https://doi.org/10.5066/F79K4894
Larger_Work_Citation:
Citation_Information:
Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2005
Title:
Response of Pacific Walrus Populations to a Rapidly Diminishing Sea Ice Environment
Geospatial_Data_Presentation_Form: website
Series_Information:
Series_Name: Alaska Science Portal
Issue_Identification: 96
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.
Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=96
Description:
Abstract:
These data are in one table with age and sex composition counts of groups of walruses on ice floes in the northern Bering and Chukchi Seas. Counts were collected by visual observations from boats.
Purpose:
These data were collected to improve population demographic estimates of the Pacific walrus population.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20130606
Ending_Date: 20150622
Currentness_Reference: observed
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent: Eastern Chukchi Sea and northern Bering Sea
Bounding_Coordinates:
West_Bounding_Coordinate: -176.95
East_Bounding_Coordinate: -160.87
North_Bounding_Coordinate: 71.86
South_Bounding_Coordinate: 62.35
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC335
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Biota
Theme_Keyword: Environment
Theme:
Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: Animals/vertebrates
Theme_Keyword: Mammals
Theme_Keyword: Carnivores
Theme_Keyword: Seals/Sea lions/Walruses
Theme_Keyword: Population dynamics
Theme:
Theme_Keyword_Thesaurus: USGS CSA Biocomplexity Thesaurus
Theme_Keyword: Demography
Theme_Keyword: Marine mammals
Theme_Keyword: Pinniped
Theme_Keyword: Age composition
Theme_Keyword: Sex ratio
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Wildlife
Theme_Keyword: Marine ecosystems
Theme_Keyword: Population dynamics
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Pacific Walrus
Theme_Keyword: Odobenus rosmarus divergens
Place:
Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Chukchi Sea
Place_Keyword: Bering Sea
Taxonomy:
Keywords/Taxon:
Taxonomic_Keyword_Thesaurus: None
Taxonomic_Keywords: Marine mammals
Taxonomic_Keywords: Pacific Walrus
Taxonomic_Keywords: Odobenus rosmarus divergens
Taxonomic_System:
Classification_System/Authority:
Classification_System_Citation:
Citation_Information:
Originator: ITIS Integrated Taxonomic Information System
Publication_Date: Unknown
Title: ITIS Integrated Taxonomic Information System
Geospatial_Data_Presentation_Form: online database
Publication_Information:
Publication_Place: online
Publisher: ITIS-North America
Other_Citation_Details:
Taxonomic details retrieved September 23, 2022 from the Integrated Taxonomic Information System online database https://www.itis.gov
Online_Linkage: https://doi.org/10.5066/F7KH0KBK
Taxonomic_Procedures:
Species were identified by skilled observers in the field based on general appearance.
Taxonomic_Completeness:
Taxonomy is completed for all samples. No voucher specimens were collected.
Taxonomic_Classification:
Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Animalia
Taxonomic_Classification:
Taxon_Rank_Name: Subkingdom
Taxon_Rank_Value: Bilateria
Taxonomic_Classification:
Taxon_Rank_Name: Infrakingdom
Taxon_Rank_Value: Deuterostomia
Taxonomic_Classification:
Taxon_Rank_Name: Phylum
Taxon_Rank_Value: Chordata
Taxonomic_Classification:
Taxon_Rank_Name: Subphylum
Taxon_Rank_Value: Vertebrata
Taxonomic_Classification:
Taxon_Rank_Name: Infraphylum
Taxon_Rank_Value: Gnathostomata
Taxonomic_Classification:
Taxon_Rank_Name: Superclass
Taxon_Rank_Value: Tetrapoda
Taxonomic_Classification:
Taxon_Rank_Name: Class
Taxon_Rank_Value: Mammalia
Taxonomic_Classification:
Taxon_Rank_Name: Subclass
Taxon_Rank_Value: Theria
Taxonomic_Classification:
Taxon_Rank_Name: Infraclass
Taxon_Rank_Value: Eutheria
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Carnivora
Taxonomic_Classification:
Taxon_Rank_Name: Suborder
Taxon_Rank_Value: Caniformia
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Odobenidae
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Odobenus
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Odobenus rosmarus
Applicable_Common_Name: Walrus
Applicable_Common_Name: TSN: 180639
Taxonomic_Classification:
Taxon_Rank_Name: Subspecies
Taxon_Rank_Value: Odobenus rosmarus divergens
Applicable_Common_Name: Pacific Walrus
Applicable_Common_Name: TSN: 622045
Access_Constraints: None
Use_Constraints:
It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Taylor, R.L.
Originator: Udevitz, M.S.
Publication_Date: 2015
Title:
Demography of the Pacific walrus (Odobenus rosmarus divergens): 1974–2006
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Marine Mammal Science
Issue_Identification: 31(1):231-254
Publication_Information:
Publication_Place: online
Publisher: Wiley
Other_Citation_Details:
Taylor, R.L., M.S. Udevitz. 2015. Demography of the Pacific walrus (Odobenus rosmarus divergens): 1974–2006. Marine Mammal Science 31(1):231-254 doi:10.1111/mms.12156
Online_Linkage: https://doi.org/10.1111/mms.12156
Cross_Reference:
Citation_Information:
Originator: Taylor, R.L.
Originator: Udevitz, M.S.
Originator: Jay, C.V.
Originator: Citta, J.J.
Originator: Quakenbush, L.T.
Originator: Lemons, P.R.
Originator: Snyder, J.A.
Publication_Date: 2018
Title:
Demography of the Pacific walrus (Odobenus rosmarus divergens) in a changing Arctic
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Marine Mammal Science
Issue_Identification: 34(1):54-86
Publication_Information:
Publication_Place: online
Publisher: Wiley
Other_Citation_Details:
Taylor, R.L., Udevitz, M.S., Jay, C.V., Citta, J.J., Quakenbush, L.T., Lemons, P.R., Snyder, J.A. 2018. Demography of the Pacific walrus (Odobenus rosmarus divergens) in a changing Arctic. Marine Mammal Science 34(1):54-86 doi:10.1111/mms.12434
Online_Linkage: https://doi.org/10.1111/mms.12434
Cross_Reference:
Citation_Information:
Originator: Beatty, W.S.
Originator: Lemons, P.R.
Originator: Everett, J.P.
Originator: Lewis, C.J.
Originator: Taylor, R.L.
Originator: Lynn, R.J.
Originator: Sethi, S.A.
Originator: Quakenbush, L.
Originator: Citta, J.J.
Originator: Kissling, M.L.
Originator: Kryukova, N.
Originator: Wenburg, J.K.
Publication_Date: 2018
Title:
Demography of the Pacific walrus (Odobenus rosmarus divergens) in a changing Arctic
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Marine Mammal Science
Issue_Identification: 34(1):54-86
Publication_Information:
Publication_Place: online
Publisher: Wiley
Other_Citation_Details:
Beatty, W.S., Lemons, P.R., Everett, J.P., Lewis, C.J., Taylor, R.L., Lynn, R.J., Sethi, S.A., Quakenbush, L., Citta, J.J., Kissling, M.L., Kryukova, N., Wenburg, J.K. 2022. Estimating Pacific walrus abundance and survival with multievent mark-recapture models. Marine Ecology Progress Series 697:167-182 doi:10.3354/meps14131
Online_Linkage: https://doi.org/10.3354/meps14131
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All data were cross-checked and verified with original field worksheets.
Logical_Consistency_Report: Attribute values fall within expected ranges.
Completeness_Report:
No data were omitted and there are no missing data. Blank cells indicate data were not collected or not provided (see Attribute Definitions for details).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Locations were acquired with hand-held GPS units (accuracy estimated to be within 3 m) and represent the location of the boat from which observers collected composition data.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
We collected age and sex data from skiffs and viewing points above the bridges of the R/V Norseman II (a retrofitted crabber designed for research in the arctic) and the R/V Professor Multanovskiy (a 249 ft Russian oceanographic vessel designed for polar expeditions). Groups of walruses hauled out on ice floes were approached at <1 knot from downwind. Age and sex data for each individual in the group was recorded using a method developed by Francis H. Fay based on the tusk length relative to the muzzle size and other distinguishing characteristics (Citta et al 2014). All individuals in a group must be categorized for the group to be successfully counted.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Citta, J.J.
Originator: Quakenbush, L.T.
Originator: Taras, B.D.
Publication_Date: 2014
Title:
Estimation of calf:cow ratios of Pacific walruses for use in population modeling and monitoring
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Marine Mammal Science
Issue_Identification: 30(1):20-43
Publication_Information:
Publication_Place: online
Publisher: Wiley
Other_Citation_Details:
Citta, J.J., Quakenbush, L.T., Taras, B.D. 2014. Estimation of calf:cow ratios of Pacific walruses for use in population modeling and monitoring. Marine Mammal Science 30(1):20-43 doi:10.1111/mms.12013
Online_Linkage: https://doi.org/10.1111/mms.12013
Type_of_Source_Media: publication
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2014
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Citta et al 2014
Source_Contribution: Describes the process for cow calf ratio estimates
Process_Step:
Process_Description: Field data sheets were transcribed into digital spreadsheets.
Process_Date: Unknown
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.01
Longitude_Resolution: 0.01
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: World Geodetic System of 1984
Ellipsoid_Name: World Geodetic System of 1984
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: walrus_hauloutGroupComp_battaile_2013_2015
Entity_Type_Definition:
Table of observations of age and sex composition of Pacific walrus on ice haulouts, with information about observations. Presented in a Comma Separated Value (CSV) formatted table.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: GroupAN
Attribute_Definition: Unique identifier of each record.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4
Range_Domain_Maximum: 2181
Attribute:
Attribute_Label: GroupId
Attribute_Definition:
Unique group identifier. A concatenation of observation boat, date, and group number.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain: Unique identifier of each walrus group
Attribute:
Attribute_Label: Year
Attribute_Definition: Year of data collection.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2013
Range_Domain_Maximum: 2015
Attribute_Units_of_Measure: Year (YYYY)
Attribute:
Attribute_Label: DateTimeStart
Attribute_Definition: Date and Time of the start of data collection.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2013-06-06 16:19
Range_Domain_Maximum: 2015-06-22 09:00
Attribute_Units_of_Measure: Date and time (YYYY-MM-DD HH:mm)
Attribute:
Attribute_Label: DateTimeEnd
Attribute_Definition:
Date and time of end of data collection. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2013-06-06 18:31
Range_Domain_Maximum: 2015-06-22 09:01
Attribute_Units_of_Measure: Date and time (YYYY-MM-DD HH:mm)
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
Latitude in decimal degrees of the location of the boat at the time of data collection. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 62.35
Range_Domain_Maximum: 71.86
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Longitude
Attribute_Definition:
Longitude in decimal degrees of the location of the boat at the time of data collection. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -176.95
Range_Domain_Maximum: -160.87
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Observer
Attribute_Definition: Names of observers collecting data
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain: Names of observers collecting data
Attribute:
Attribute_Label: IceConcentration
Attribute_Definition:
Concentration of ice on the water at the time the group was scored. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 0.9
Attribute_Units_of_Measure: Proportion of ice and open water
Attribute:
Attribute_Label: IceForm
Attribute_Definition:
Type of ice observed. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Small Floe
Enumerated_Domain_Value_Definition: Types of at sea ice.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Medium Floe
Enumerated_Domain_Value_Definition: Types of at sea ice.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Ice Cake
Enumerated_Domain_Value_Definition: Types of at sea ice.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: DistanceToGroup
Attribute_Definition:
Minimum distance in meters of boat from group as measured by a Leica Rangemaster distance measurer. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 1200
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: FlightDistance
Attribute_Definition:
Distance in meters of boat from group when/if the group left the ice floe. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1098
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: ApproachDirection
Attribute_Definition:
Direction of group relative to the boat. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 359
Attribute_Units_of_Measure: degrees
Attribute:
Attribute_Label: GroupSize
Attribute_Definition:
Number of animals in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 69
Attribute:
Attribute_Label: GroupSizingMethod
Attribute_Definition:
Method used to determine the number of animals in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Count
Enumerated_Domain_Value_Definition: Group size determined by direct count.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Estimate
Enumerated_Domain_Value_Definition: Group size estimated.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: MMPAtake
Attribute_Definition:
Number of animals in the group that left the ice floe. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 62
Attribute:
Attribute_Label: ObservationPlatform
Attribute_Definition:
Name of the boat the group composition data was observed from. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NM
Enumerated_Domain_Value_Definition: R/V Norseman II
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: PM
Enumerated_Domain_Value_Definition: R/V Professor Multanovskiy
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: S1
Enumerated_Domain_Value_Definition: Skiff 1
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: S2
Enumerated_Domain_Value_Definition: Skiff 2
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: S3
Enumerated_Domain_Value_Definition: Skiff 3
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: 0_Calves
Attribute_Definition:
Number of animals in the group of age 0 years. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 22
Attribute:
Attribute_Label: 1_Yearlings
Attribute_Definition:
Number of animals in the group of age 1 year. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 10
Attribute:
Attribute_Label: 2_Year
Attribute_Definition:
Number of animals in the group of age 2 years. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7
Attribute:
Attribute_Label: 3_Year
Attribute_Definition:
Number of animals in the group of age 3 years. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: 4-5_Year
Attribute_Definition:
Number of animals in the group of age 4-5 years. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: U_juv
Attribute_Definition:
Number in the group that were identified as juvenile, that were not able to be aged more specifically. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2
Attribute:
Attribute_Label: M_6-9
Attribute_Definition:
Number of adult males of age 6-9 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 4
Attribute:
Attribute_Label: M_10-15
Attribute_Definition:
Number of adult males of age 10-15 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 5
Attribute:
Attribute_Label: M_15+
Attribute_Definition:
Number of adult males of age >15 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 3
Attribute:
Attribute_Label: M_6+
Attribute_Definition:
Number of adult males of age >= 6 years in the group, that were not able to be aged more specifically. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 11
Attribute:
Attribute_Label: F_6-9
Attribute_Definition:
Number of adult females of age 6-9 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 5
Attribute:
Attribute_Label: F_10-15
Attribute_Definition:
Number of adult females of age 10-15 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 5
Attribute:
Attribute_Label: F_15+
Attribute_Definition:
Number of adult males of age >15 years in the group. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: F_6+
Attribute_Definition:
Number of adult females of age >= 6 years in the group, that were not able to be aged more specifically. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 48
Attribute:
Attribute_Label: U_6+
Attribute_Definition:
Number of adults of unknown sex of age >= 6 years in the group, that were not able to be aged more specifically. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 10
Attribute:
Attribute_Label: UU
Attribute_Definition:
Number of animals in the group of unknown age and sex. Blank cells indicate data was not recorded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 20
Attribute:
Attribute_Label: AllScored
Attribute_Definition:
Boolean variable indicating whether the age and sex composition data was taken for all animals in the group?
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: TRUE
Enumerated_Domain_Value_Definition: Age and sex composition data from all animals in the group.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FALSE
Enumerated_Domain_Value_Definition: Age and sex composition data not from all animals in the group.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Notes
Attribute_Definition:
Additional information necessary for interpretation of the data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Notes to explain unusual factors of the group composition data collection process or data itself.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Resource_Description:
The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Information_Content:
Data are distributed in a Zip package containing data in CSV format and FGDC metadata in XML and HTML formats.
File_Decompression_Technique:
Compression applied by the 7-Zip utility using the default compression level [5]. The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.5066/F79K4894
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20220923
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Metadata_Standard_Name:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (CSDGM)
Metadata_Standard_Version: FGDC-STD-001.1-1999
Generated by mp version 2.9.52 on Fri Sep 23 18:53:16 2022