USGS Alaska Science Center Polar Bear Maternal Dens

Latest version published by United States Geological Survey on Oct 4, 2016 United States Geological Survey

This report presents data on the approximate locations and methods of discovery of 392 polar bear (Ursus maritimus) maternal dens found in the Beaufort Sea and neighboring regions between 1910 and 2010 that are archived by the U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska. A description of data collection methods, biases associated with collection method, primary time periods, and spatial resolution are provided. Polar bears in the Beaufort Sea and nearby regions den on both the sea ice and on land. Standardized VHF surveys and satellite radio telemetry data provide a general understanding of where polar bears have denned in this region over the past 3 decades. Den observations made during other research activities and anecdotal reports from other government agencies, coastal residents, and industry personnel also are reported. Data on past polar bear maternal den locations are provided to inform the public and to provide information for natural resource agencies in planning activities to avoid or minimize interference with polar bear maternity dens.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 389 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 389 records in English (12 KB) - Update frequency: unknown
Metadata as an EML file download in English (6 KB)
Metadata as an RTF file download in English (7 KB)


The table below shows only published versions of the resource that are publicly accessible.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is United States Geological Survey. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: a28eb0fc-73f3-471e-b927-cc58f576c9e0.  United States Geological Survey publishes this resource, and is itself registered in GBIF as a data publisher endorsed by U.S. Geological Survey.


Occurrence; Observation

External data

The resource data is also available in other formats



Who created the resource:

George Durner
Research Zoologist
U.S. Geological Survey 4210 University Drive 99508-4626 Anchorage AK US

Who can answer questions about the resource:

George Durner
Research Zoologist
U.S. Geological Survey 4210 University Drive 99508-4626 Anchorage AK US

Who filled in the metadata:

Abigail Benson
U.S. Geological Survey

Who else was associated with the resource:

Abigail Benson
U.S. Geological Survey

Geographic Coverage

Beaufort Sea and Chukchi Sea of northern Alaska, Canada, and Russia

Bounding Coordinates South West [63.367, -178.917], North East [83.921, 178.217]

Additional Metadata

marine, harvest by iOBIS

Alternative Identifiers a28eb0fc-73f3-471e-b927-cc58f576c9e0