Polar Bear Distribution and Habitat Resource Selection Data, Beaufort and Chukchi Seas, 1985-2016

Identification_Information:

Citation:

Citation_Information:

Originator: Durner, George M. (ORCID: 0000-0002-3370-1191)
Publication_Date: 20190731
Title:

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: Durner, G.M., 2019, Polar bear distribution and habitat resource selection data, Beaufort and Chukchi Seas, 1985-2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZRJ3XU

Online_Linkage: https://doi.org/10.5066/P9ZRJ3XU
Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 1984
Title:

Response of Polar Bear Populations to a Rapidly Diminishing Sea Ice Environment

Geospatial_Data_Presentation_Form: website
Series_Information:

Series_Name: Alaska Science Portal
Issue_Identification: 16

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=16

Description:

Abstract:

These data from satellite radio-collared adult female polar bears captured in the southern Beaufort Sea, 1985-2016 were used for testing the regional, seasonal and decadal efficacy of retrospective polar bear resource selection functions (RSF) developed for the Arctic basin and its peripheral seas (see Durner et al. 2009). The data includes the following: 1) a csv file of locations used to build a 99% minimum convex polygon study area; 2) a csv file of locations, that occurred within the study area, and were used to test RSFs; 3) a csv file of locations used to build seasonal kernel utilization distributions (95% and 50% contours) for periods 1985-1995, 1996-2006, and 2007-2016.

Purpose:

These data were gathered as part of on-going long-term research by the U.S. Geological Survey in the Beaufort Sea to understand the ecology and behavior of southern Beaufort Sea polar bears and their use of sea ice habitat in the Beaufort and Chukchi seas.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19850506
Ending_Date: 20160620

Currentness_Reference: observed

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Description_of_Geographic_Extent: Beaufort and Chukchi Seas
Bounding_Coordinates:

West_Bounding_Coordinate: 163.3192
East_Bounding_Coordinate: -110.966
North_Bounding_Coordinate: 83.677
South_Bounding_Coordinate: 61.700

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC218

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: Bears
Theme_Keyword: Species Life History

Theme:

Theme_Keyword_Thesaurus: USGS CSA Biocomplexity Thesaurus
Theme_Keyword: Wildlife
Theme_Keyword: Mammals
Theme_Keyword: Marine mammals
Theme_Keyword: Threatened species

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Wildlife
Theme_Keyword: Mammals
Theme_Keyword: Science programs
Theme_Keyword: Animal behavior
Theme_Keyword: Bears
Theme_Keyword: Biogeography

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Satellite Transmitter
Theme_Keyword: Argos
Theme_Keyword: Polar bears
Theme_Keyword: Ursus maritimus

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Chukchi Sea
Place_Keyword: Beaufort Sea

Taxonomy:

Keywords/Taxon:

Taxonomic_Keyword_Thesaurus: None
Taxonomic_Keywords: Animals
Taxonomic_Keywords: Mammals
Taxonomic_Keywords: Vertebrates
Taxonomic_Keywords: Bears
Taxonomic_Keywords: Polar bears

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 January 2, 2023 from the Integrated Taxonomic Information System online database https://www.itis.gov

Online_Linkage: https://doi.org/10.5066/F7KH0KBK

Taxonomic_Procedures:

Species identification was made by skilled observers in the field based on general appearance. Polar bears are not easily confused with other species.

Taxonomic_Completeness:

Taxonomy is complete 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: Ursidae
Taxonomic_Classification:

Taxon_Rank_Name: Genus
Taxon_Rank_Value: Ursus
Taxonomic_Classification:

Taxon_Rank_Name: Species
Taxon_Rank_Value: Ursus maritimus
Applicable_Common_Name: Polar Bear
Applicable_Common_Name: TSN: 180542

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: Durner, G.M.
Originator: Douglas, D.C.
Originator: Atwood, T.C.
Publication_Date: 2019
Title:

Are polar bear habitat resource selection functions developed from 1985–1995 data still useful?

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Ecology and Evolution
Issue_Identification: 9(15):8625-8638

Publication_Information:

Publication_Place: online
Publisher: Wiley

Other_Citation_Details:

Durner, G.M., Douglas, D.C., Atwood, T.C. 2019. Are polar bear habitat resource selection functions developed from 1985–1995 data still useful? Ecology and Evolution 9(15):8625-8638 doi:10.1002/ece3.5401

Online_Linkage: https://doi.org/10.1002/ece3.5401

Cross_Reference:

Citation_Information:

Originator: Kellner, A.
Originator: Atwood, T.C.
Originator: Douglas, D.C.
Originator: Breck, S.W.
Originator: Wittemyer, G.
Publication_Date: 2019
Title:

High Winds and Melting Sea Ice Trigger Landward Movement in a Polar Bear Population of Concern

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Ecosphere
Issue_Identification: 14(2):e4420

Publication_Information:

Publication_Place: online
Publisher: Wiley

Other_Citation_Details:

Kellner, A., Atwood, T.C., Douglas, D.C., Breck, S.W., Wittemyer, G. 2023. High winds and melting sea ice trigger landward movement in a polar bear population of concern. Ecosphere 14(2):e4420 doi:10.1002/ecs2.4420

Online_Linkage: https://doi.org/10.1002/ecs2.4420

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

All polar bear satellite locations collected between 1985-2003 were Doppler-shift derived and estimated by the Argos system (CLS; http://www.argos-system.org/manual/ ). The horizontal accuracy of those data was filtered by the Douglas Argos-filter (DAF) algorithm (Douglas et al 2012) Hybrid algorithm (MAXREDUN = 10 km). Douglas et al 2012 estimated the 68th percentile for the horizontal error of Argos location classes 3, 2, 1, 0, A, B and Z as, respectively, 0.4, 1.0, 2.5, 6.8, 4.1, 7.6, and 4.7 km. Most polar bear locations collected after 2003 were derived by on-board geographic positioning system (GPS) receivers whose horizontal accuracy has been estimated as 30 m (Adams et al 2013).

Latitude and longitude estimated by Argos are reported to 3 decimal places. Latitude and longitude estimated by GPS and reported by Argos or the Iridium satellite system are reported to 5 decimal places.

Logical_Consistency_Report:

We performed an initial filter to remove implausible Doppler locations using the Douglas Argos-filter (DAF) algorithm (Douglas et al 2012). DAF retained all standard-quality locations (Argos location classes 3, 2, and 1), and auxiliary location classes (0, A, B and Z) when corroborated by a consecutive location within a 10 km radius, or when movement rates were <10 km hr-1 and the internal angles (α, in degrees) formed by preceding and subsequent vectors (of lengths d1 and d2 km) were not suspiciously acute (α > -25 + β × ln[minimum (d1,d2)], where β = 15). We assigned β = 15 because it performed well for our specific tracking data across seasons and regions.

Completeness_Report:

We restricted our analysis to data from adult female polar bears because adult male and sub-adult polar bears cannot wear radio collars, and the vast majority of tracking data has been of adult females. We retained data from a PTT if it was deployed on a bear captured between 123º and 157º west longitude. We excluded locations of bears that were on land or in maternal dens, and from PTTs that had become detached as evidenced by invariant activity sensor data, temperature sensor data emulating ambient conditions, or location data either persistently stationary or persistently following the prevailing ice drift.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Lineage:

Methodology:

Methodology_Type: Field
Methodology_Description:

From 1985 to 2016, we captured adult female polar bears in the southern Beaufort Sea and equipped them with either collar, ear tag, or glue-on platform transmitter terminals (PTT) that provided Doppler-derived or GPS locations. We restricted our analysis to data from adult female polar bears because adult male and sub-adult polar bears cannot wear radio collars, and the vast majority of tracking data has been of adult females (Durner et al 2009). We retained data from a PTT if it was deployed on a bear captured between 123º and 157º west longitude.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Adams, A.L.
Originator: Dickinson, K.J.M.
Originator: Robertson, B.C.
Originator: van Heezik, Y.
Publication_Date: 2013
Title:

An evaluation of the accuracy and performance of lightweight GPS collars in a suburban environment

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: PLoS One
Issue_Identification: 8(7):e68496

Publication_Information:

Publication_Place: online
Publisher: PLoS One

Other_Citation_Details:

Adams, A.L., Dickinson, K.J.M., Robertson, B.C., van Heezik, Y. 2013. An evaluation of the accuracy and performance of lightweight GPS collars in a suburban environment. PLoS ONE 8(7):e68496 doi:10.1371/journal.pone.0068496

Online_Linkage: https://doi.org/10.1371/journal.pone.0068496

Type_of_Source_Media: journal article
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2013

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Adams et al 2013
Source_Contribution:

Describes the use of the horizontal accuracy of on-board geographic positioning system (GPS) receivers.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Douglas, D.C.
Originator: Weinzierl, R.
Originator: Davidson, S.C.
Originator: Kays, R.
Originator: Wikelski, M.
Originator: Bohrer, G.
Publication_Date: 2012
Title: Moderating Argos location errors in animal tracking data
Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Methods in Ecology and Evolution
Issue_Identification: 3:999-1007

Publication_Information:

Publication_Place: Online
Publisher: Wiley

Other_Citation_Details:

Douglas, D.C., Weinzierl, R., Davidson, S.C., Kays, R., Wikelski, M., Bohrer, G. 2012. Moderating Argos location errors in animal tracking data. Methods in Ecology and Evolution 3:999-1007 doi:10.1111/j.2041-210X.2012.00245.x

Online_Linkage: https://doi.org/10.1111/j.2041-210X.2012.00245.x

Type_of_Source_Media: journal article
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Douglas et al 2012
Source_Contribution:

Describes the use of the "Douglas Argos Filter" (DAF) for flagging implausible locations.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Durner, G.M.
Originator: Douglas, D.C.
Originator: Nielson, R.M.
Originator: Amstrup, S.C.
Originator: McDonald, T.L.
Originator: Stirling, I.
Originator: Mauritzen, M.
Originator: Born, E.W.
Originator: Wiig, Ø.
Originator: DeWeaver, E.
Originator: Serreze, M.C.
Originator: Belikov, S.E.
Originator: Holland, M.M.
Originator: Maslanik, J.
Originator: Aars, J.
Originator: Bailey, D.A.
Originator: Derocher, A.E.
Publication_Date: 2009
Title:

Predicting 21st-century polar bear habitat distribution from global climate models

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Ecological Monographs
Issue_Identification: 79(1):25-58

Publication_Information:

Publication_Place: online
Publisher: Ecological Society of America

Other_Citation_Details:

Durner, G.M., Douglas, D.C., Nielson, R.M., Amstrup, S.C., McDonald, T.L., Stirling, I., Mauritzen, M., Born, E.W., Wiig, Ø., DeWeaver, E., Serreze, M.C., Belikov, S.E., Holland, M.M., Maslanik, J., Aars, J., Bailey, D.A., Derocher, A.E. 2009. Predicting 21st-century polar bear habitat distribution from global climate models. Ecological Monographs 79(1):25-58. doi:10.1890/07-2089.1

Online_Linkage: https://doi.org/10.1890/07-2089.1

Type_of_Source_Media: journal article
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2009

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Durner et al 2009
Source_Contribution:

Describes the use of the deployment and tracking data from satellite radio-collared polar bears.

Process_Step:

Process_Description:

Data were downloaded through the Argos System (www.argos-system.org) or the Iridium satellite system (Iridium Satellite Communications, McLean, VA, USA).

Process_Date: 2018

Process_Step:

Process_Description:

For calculating a 99% minimum convex polygon study area we used all polar bear locations, 1985-2016. One location per day per bear was selected for the MCP analysis based on the best location quality (GPS, then Argos quality classes 3, 2, 1, 0, A, and B); ties were decided randomly.

Process_Date: 2018

Process_Step:

Process_Description:

For calculating 50% and 95% kernel utilization distributions, we used higher-accuracy polar bear locations (GPS and Argos classes 3, 2, and 1) that were no less than 72 hours apart (to reduce autocorrelation and standardize interannual sampling intensity).

Process_Date: 2018

Process_Step:

Process_Description:

For assessing the distribution of polar bear locations with resource selection function (RSF) valued habitat we used higher-accuracy polar bear locations (GPS and Argos classes 3, 2, and 1) that were no less than 72 hours apart (to reduce autocorrelation and standardize interannual sampling intensity). Locations that occurred outside of RSF zones were excluded.

Process_Date: 2018

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: General capture location was the Beaufort Sea.

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: World Geodetic System of 1984 (WGS84)
Ellipsoid_Name: World Geodetic System of 1984 (WGS84)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:

polarBear_satelliteTelemetry_99PercentMCP_beaufortChukchi_Durner_1985_2016.csv

Entity_Type_Definition:

Table containing satellite location data from adult female polar bears captured in the Beaufort Sea, 1985-2016, and used to create a 99% minimum convex polygon study area. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: BearID_mcp
Attribute_Definition:

A unique identifier assigned to each bear in the dataset used in defining the 99% minimum convex polygon.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 308
Attribute_Units_of_Measure: none

Attribute:

Attribute_Label: DateTimeUTC_mcp
Attribute_Definition:

The date and time of the satellite radio telemetry observation used in defining the 99% minimum convex polygon.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5/6/1985 23:29
Range_Domain_Maximum: 6/20/2016 04:00
Attribute_Units_of_Measure: MM/DD/YYYY HH:mm (UTC)

Attribute:

Attribute_Label: latitude_mcp
Attribute_Definition:

The latitude of the satellite radio telemetry observation used in defining the 99% minimum convex polygon.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 61.70000
Range_Domain_Maximum: 83.67700
Attribute_Units_of_Measure: Decimal degrees (WGS 84)
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: longitude_mcp
Attribute_Definition:

The longitude of the satellite radio telemetry observation used in defining the 99% minimum convex polygon.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -110.96600
Range_Domain_Maximum: 163.31920
Attribute_Units_of_Measure: Decimal degrees (WGS 84)
Attribute_Measurement_Resolution: 0.00001

Detailed_Description:

Entity_Type:

Entity_Type_Label:

polarBear_satelliteTelemetry_RSFequalAreaZones_beaufortChukchi_Durner_1985_2016.csv

Entity_Type_Definition:

Table containing satellite location data from adult female polar bears captured in the Beaufort Sea, 1985-2016, and used to test the fit of resource selection function equal area zones with polar bear distribution. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: BearID_rsf
Attribute_Definition:

A unique identifier assigned to each bear in the dataset used to test the fit of resource selection function equal area zones.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 301
Attribute_Units_of_Measure: none

Attribute:

Attribute_Label: DateTimeUTC_rsf
Attribute_Definition:

The date and time of the satellite radio telemetry observation used to test the fit of resource selection function equal area zones.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5/6/1985 23:29
Range_Domain_Maximum: 6/20/2016 05:00
Attribute_Units_of_Measure: MM/DD/YYYY HH:mm (UTC)

Attribute:

Attribute_Label: latitude_rsf
Attribute_Definition:

The latitude of the satellite radio telemetry observation used to test the fit of resource selection function equal area zones.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 63.89100
Range_Domain_Maximum: 82.40900
Attribute_Units_of_Measure: Decimal degrees (WGS 84)
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: longitude_rsf
Attribute_Definition:

The longitude of the satellite radio telemetry observation used to test the fit of resource selection function equal area zones.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -115.06000
Range_Domain_Maximum: 174.14200
Attribute_Units_of_Measure: Decimal degrees (WGS 84)
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: season
Attribute_Definition: Season of year in which the record occurs.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: max
Enumerated_Domain_Value_Definition: Season of maximum sea ice extent (winter).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mlt
Enumerated_Domain_Value_Definition: Season of sea ice melt (spring, or breakup).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: min
Enumerated_Domain_Value_Definition: Season of minimum sea ice (summer)
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gth
Enumerated_Domain_Value_Definition: season of sea ice growth (autumn, or freeze-up).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: period
Attribute_Definition: Decadal period in which the record occurs.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8595
Enumerated_Domain_Value_Definition: Years inclusive of 1985-1995
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9606
Enumerated_Domain_Value_Definition: Years inclusive of 1996-2006
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0716
Enumerated_Domain_Value_Definition: Years inclusive of 2007-2016
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: lc94_rsf
Attribute_Definition: Estimated horizontal error (meters) of location records.
Attribute_Definition_Source:

Argos: Douglas et al 2012

GPS: Adams et al 2013

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: L1
Enumerated_Domain_Value_Definition:

Coordinate is within < 2500 meters of its true location on the earth.

Enumerated_Domain_Value_Definition_Source: Douglas et al 2012

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: L2
Enumerated_Domain_Value_Definition:

Coordinate is within < 1000 meters of its true location on the earth.

Enumerated_Domain_Value_Definition_Source: Douglas et al 2012

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: L3
Enumerated_Domain_Value_Definition:

Coordinate is within < 400 meters of its true location on the earth.

Enumerated_Domain_Value_Definition_Source: Douglas et al 2012

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: L4
Enumerated_Domain_Value_Definition:

Coordinate is within < 30 meters of its true location on the earth.

Enumerated_Domain_Value_Definition_Source: Adams et al 2013

Attribute:

Attribute_Label: eaInterval_rsf
Attribute_Definition:

A unique identifier assigned to each resource selection function (RSF) equal area zone in which the polar bear location occurs, where 1 = lowest RSF-valued habitat and 20 = highest RSF-valued habitat, of records used to test the fit of resource selection function equal area zones.

Attribute_Definition_Source: Durner et al 2009
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 20
Attribute_Units_of_Measure: none

Detailed_Description:

Entity_Type:

Entity_Type_Label:

polarBear_satelliteTelemetry_kernelUD_beaufortChukchi_Durner_1985_2016.csv

Entity_Type_Definition:

Table containing satellite location data from adult female polar bears captured in the Beaufort Sea, 1985-2016, and used to create 50% and 95% kernel utilization distributions. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: BearID_ud
Attribute_Definition:

A unique identifier assigned to each bear in the dataset used in defining the 50% and 95% kernel utilization distributions.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 288
Attribute_Units_of_Measure: none

Attribute:

Attribute_Label: DateTimeUTC_ud
Attribute_Definition:

The date and time of the satellite radio telemetry observation used in defining the 50% and 95% kernel utilization distributions.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5/6/1985 23:29
Range_Domain_Maximum: 6/16/2016 22:00
Attribute_Units_of_Measure: MM/DD/YYYY HH:mm (UTC)

Attribute:

Attribute_Label: latitude_ud
Attribute_Definition:

The latitude of the satellite radio telemetry observation used in defining the 50% and 95% kernel utilization distributions.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 63.891
Range_Domain_Maximum: 82.226
Attribute_Units_of_Measure: Decimal degrees (WGS 84)

Attribute:

Attribute_Label: longitude_ud
Attribute_Definition:

The longitude of the satellite radio telemetry observation used in defining the 50% and 95% kernel utilization distributions.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -110.966
Range_Domain_Maximum: 163.319
Attribute_Units_of_Measure: Decimal degrees (WGS 84)

Attribute:

Attribute_Label: season
Attribute_Definition: Season of year in which the record occurs.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: max
Enumerated_Domain_Value_Definition: Season of maximum sea ice extent (winter).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mlt
Enumerated_Domain_Value_Definition: Season of sea ice melt (spring, or breakup).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: min
Enumerated_Domain_Value_Definition: Season of minimum sea ice (summer).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gth
Enumerated_Domain_Value_Definition: Season of sea ice growth (autumn, or freeze-up).
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: period
Attribute_Definition: Decadal period in which the record occurs.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8595
Enumerated_Domain_Value_Definition: Years inclusive of 1985-1995
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9606
Enumerated_Domain_Value_Definition: Years inclusive of 1996-2006
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0716
Enumerated_Domain_Value_Definition: Years inclusive of 2007-2016
Enumerated_Domain_Value_Definition_Source: Author defined

Polar Bear Distribution and Habitat Resource Selection Data, Beaufort and Chukchi Seas, 1985-2016

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