(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard
Arctic sea ice is declining rapidly, making it vital to understand the importance of different types of sea ice for ice-dependent species such as polar bears Ursus maritimus. In this study we used GPS telemetry (25 polar bear tracks obtained in Svalbard, Norway, during spring) and high-resolution sy...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809534 2023-05-15T15:15:27+02:00 (Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard Freitas, Carla Kovacs, Kit Maureen Andersen, Magnus Aars, Jon Sandven, Stein Skern-Mauritzen, Mette Pavlova, Olga Lydersen, Christian LATITUDE: 78.900000 * LONGITUDE: 18.010000 * DATE/TIME START: 2003-04-01T00:00:00 * DATE/TIME END: 2004-04-01T00:00:00 2010-04-03 text/tab-separated-values, 437 data points https://doi.pangaea.de/10.1594/PANGAEA.809534 https://doi.org/10.1594/PANGAEA.809534 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.809534 https://doi.org/10.1594/PANGAEA.809534 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Freitas, Carla; Kovacs, Kit Maureen; Andersen, Magnus; Aars, Jon; Sandven, Stein; Skern-Mauritzen, Mette; Pavlova, Olga; Lydersen, Christian (2012): Importance of fast ice and glacier fronts for female polar bears and their cubs during spring in Svalbard, Norway. Marine Ecology Progress Series, 447, 289-304, https://doi.org/10.3354/meps09516 Biological sample BIOS Calculated from GPS Comment DATE/TIME Distance Duration number of days Identification International Polar Year (2007-2008) IPY Method comment Number Number of observations Percentage Radius Sampling date Status Svalbard Svalbard_bear Ursus maritimus home range Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.809534 https://doi.org/10.3354/meps09516 2023-01-20T09:00:54Z Arctic sea ice is declining rapidly, making it vital to understand the importance of different types of sea ice for ice-dependent species such as polar bears Ursus maritimus. In this study we used GPS telemetry (25 polar bear tracks obtained in Svalbard, Norway, during spring) and high-resolution synthetic aperture radar (SAR) sea-ice data to investigate fine-scale space use by female polar bears. Space use patterns differed according to reproductive state; females with cubs of the year (COYs) had smaller home ranges and used fast-ice areas more frequently than lone females. First-passage time (FPT) analysis revealed that females with COYs displayed significantly longer FPTs near (<10 km) glacier fronts than in other fast-ice areas; lone females also increased their FPTs in such areas, but they also frequently used drifting pack ice. These results clearly demonstrate the importance of fast-ice areas, in particular close to glacier fronts, especially for females with COYs. Access to abundant and predictable prey (ringed seal pups), energy conservation and reluctance to cross large open water areas are possible reasons for the observed patterns. However, glacier fronts are retracting in Svalbard, and declines in land-fast ice have been notable over the past decade. The eventual disappearance of these important habitats might become critical for the survival of polar bear cubs in Svalbard and other regions with similar habitat characteristics. Given the relatively small size of many fast-ice areas in Svalbard, the results observed in this study would not have been revealed using less accurate location data or lower-resolution sea-ice data. Dataset Arctic glacier glacier International Polar Year IPY ringed seal Sea ice Storfjorden Svalbard Ursus maritimus PANGAEA - Data Publisher for Earth & Environmental Science Arctic Svalbard Norway Lone ENVELOPE(11.982,11.982,65.105,65.105) ENVELOPE(18.010000,18.010000,78.900000,78.900000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Biological sample BIOS Calculated from GPS Comment DATE/TIME Distance Duration number of days Identification International Polar Year (2007-2008) IPY Method comment Number Number of observations Percentage Radius Sampling date Status Svalbard Svalbard_bear Ursus maritimus home range |
spellingShingle |
Biological sample BIOS Calculated from GPS Comment DATE/TIME Distance Duration number of days Identification International Polar Year (2007-2008) IPY Method comment Number Number of observations Percentage Radius Sampling date Status Svalbard Svalbard_bear Ursus maritimus home range Freitas, Carla Kovacs, Kit Maureen Andersen, Magnus Aars, Jon Sandven, Stein Skern-Mauritzen, Mette Pavlova, Olga Lydersen, Christian (Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
topic_facet |
Biological sample BIOS Calculated from GPS Comment DATE/TIME Distance Duration number of days Identification International Polar Year (2007-2008) IPY Method comment Number Number of observations Percentage Radius Sampling date Status Svalbard Svalbard_bear Ursus maritimus home range |
description |
Arctic sea ice is declining rapidly, making it vital to understand the importance of different types of sea ice for ice-dependent species such as polar bears Ursus maritimus. In this study we used GPS telemetry (25 polar bear tracks obtained in Svalbard, Norway, during spring) and high-resolution synthetic aperture radar (SAR) sea-ice data to investigate fine-scale space use by female polar bears. Space use patterns differed according to reproductive state; females with cubs of the year (COYs) had smaller home ranges and used fast-ice areas more frequently than lone females. First-passage time (FPT) analysis revealed that females with COYs displayed significantly longer FPTs near (<10 km) glacier fronts than in other fast-ice areas; lone females also increased their FPTs in such areas, but they also frequently used drifting pack ice. These results clearly demonstrate the importance of fast-ice areas, in particular close to glacier fronts, especially for females with COYs. Access to abundant and predictable prey (ringed seal pups), energy conservation and reluctance to cross large open water areas are possible reasons for the observed patterns. However, glacier fronts are retracting in Svalbard, and declines in land-fast ice have been notable over the past decade. The eventual disappearance of these important habitats might become critical for the survival of polar bear cubs in Svalbard and other regions with similar habitat characteristics. Given the relatively small size of many fast-ice areas in Svalbard, the results observed in this study would not have been revealed using less accurate location data or lower-resolution sea-ice data. |
format |
Dataset |
author |
Freitas, Carla Kovacs, Kit Maureen Andersen, Magnus Aars, Jon Sandven, Stein Skern-Mauritzen, Mette Pavlova, Olga Lydersen, Christian |
author_facet |
Freitas, Carla Kovacs, Kit Maureen Andersen, Magnus Aars, Jon Sandven, Stein Skern-Mauritzen, Mette Pavlova, Olga Lydersen, Christian |
author_sort |
Freitas, Carla |
title |
(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
title_short |
(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
title_full |
(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
title_fullStr |
(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
title_full_unstemmed |
(Tables 1,2) Tracking records and space use statistics of polar bears (Ursus maritimus) in Storfjorden, Svalbard |
title_sort |
(tables 1,2) tracking records and space use statistics of polar bears (ursus maritimus) in storfjorden, svalbard |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.809534 https://doi.org/10.1594/PANGAEA.809534 |
op_coverage |
LATITUDE: 78.900000 * LONGITUDE: 18.010000 * DATE/TIME START: 2003-04-01T00:00:00 * DATE/TIME END: 2004-04-01T00:00:00 |
long_lat |
ENVELOPE(11.982,11.982,65.105,65.105) ENVELOPE(18.010000,18.010000,78.900000,78.900000) |
geographic |
Arctic Svalbard Norway Lone |
geographic_facet |
Arctic Svalbard Norway Lone |
genre |
Arctic glacier glacier International Polar Year IPY ringed seal Sea ice Storfjorden Svalbard Ursus maritimus |
genre_facet |
Arctic glacier glacier International Polar Year IPY ringed seal Sea ice Storfjorden Svalbard Ursus maritimus |
op_source |
Supplement to: Freitas, Carla; Kovacs, Kit Maureen; Andersen, Magnus; Aars, Jon; Sandven, Stein; Skern-Mauritzen, Mette; Pavlova, Olga; Lydersen, Christian (2012): Importance of fast ice and glacier fronts for female polar bears and their cubs during spring in Svalbard, Norway. Marine Ecology Progress Series, 447, 289-304, https://doi.org/10.3354/meps09516 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.809534 https://doi.org/10.1594/PANGAEA.809534 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.809534 https://doi.org/10.3354/meps09516 |
_version_ |
1766345828368121856 |