Articles | Volume 10, issue 5
https://doi.org/10.5194/tc-10-2027-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-10-2027-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Sea-ice indicators of polar bear habitat
Harry L. Stern
CORRESPONDING AUTHOR
Polar Science Center, Applied Physics Laboratory, University of
Washington, 1013 NE 40th Street, Seattle, WA 98105, USA
Kristin L. Laidre
Polar Science Center, Applied Physics Laboratory, University of
Washington, 1013 NE 40th Street, Seattle, WA 98105, USA
Greenland Institute of Natural Resources, Box 570, 3900 Nuuk, Greenland
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125 citations as recorded by crossref.
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- Patterns of sea ice drift and polar bear (Ursus maritimus) movement in Hudson Bay N. Klappstein et al. 10.3354/meps13293
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- Intrapopulation differences in polar bear movement and step selection patterns R. Wilson et al. 10.1186/s40462-022-00326-5
- Polar bear's range dynamics and survival in the Holocene H. Seppä et al. 10.1016/j.quascirev.2023.108277
- Assessing the risk of climate maladaptation for Canadian polar bears L. Rivkin et al. 10.1111/ele.14486
- Polar bear foraging on common eider eggs: estimating the energetic consequences of a climate-mediated behavioural shift P. Jagielski et al. 10.1016/j.anbehav.2020.11.009
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- Influence of sea ice dynamics on population energetics of Western Hudson Bay polar bears A. Johnson et al. 10.1093/conphys/coaa132
- Conservation status of polar bears (Ursus maritimus) in relation to projected sea-ice declines E. Regehr et al. 10.1098/rsbl.2016.0556
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- Summer habitat selection by ringed seals (Pusa hispida) in the drifting sea ice of the northern Barents Sea K. Lone et al. 10.33265/polar.v38.3483
- Diet composition and body condition of polar bears (Ursus maritimus) in relation to sea ice habitat in the Canadian High Arctic K. Florko et al. 10.1007/s00300-021-02891-8
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- Space-use strategy affects energy requirements in Barents Sea polar bears M. Blanchet et al. 10.3354/meps13290
- The Clock Keeps Ticking: Circadian Rhythms of Free-Ranging Polar Bears J. Ware et al. 10.1177/0748730419900877
- Behavioral responses of Adélie penguins confronting a giant ice floe S. Park et al. 10.1016/j.dsr2.2022.105152
- Dynamic Fine‐Scale Sea Icescape Shapes Adult Emperor Penguin Foraging Habitat in East Antarctica S. Labrousse et al. 10.1029/2019GL084347
- Thick and old sea ice in the Beaufort Sea during summer 2020/21 was associated with enhanced transport G. Moore et al. 10.1038/s43247-022-00530-6
- Telemetry without collars: performance of fur- and ear-mounted satellite tags for evaluating the movement and behaviour of polar bears T. Ross et al. 10.1186/s40317-024-00373-2
- Community-led non-invasive polar bear monitoring in the Eeyou Marine Region of James Bay, Canada: insights on distribution and body condition during the ice-free season A. Langwieder et al. 10.1139/facets-2022-0226
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- Definition differences and internal variability affect the simulated Arctic sea ice melt season A. Smith & A. Jahn 10.5194/tc-13-1-2019
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- Identifying indicators of polar bear population status K. Rode et al. 10.1016/j.ecolind.2024.111638
- Measuring adrenal and reproductive hormones in hair from Southern Beaufort Sea polar bears (Ursus maritimus) M. Van der Walt et al. 10.1016/j.ygcen.2021.113807
- A demographic survey of the Davis Strait polar bear subpopulation using physical and genetic capture‐recapture‐recovery sampling K. Dunham et al. 10.1111/mms.13107
- Phenotypic plasticity and climate change: can polar bears respond to longer Arctic summers with an adaptive fast? J. Whiteman et al. 10.1007/s00442-017-4023-0
- Modeling optimal responses and fitness consequences in a changing Arctic J. Reimer et al. 10.1111/gcb.14681
- Behaviour and characteristics of mating polar bears (Ursus maritimus) in the Beaufort Sea, Canada B. Biddlecombe et al. 10.1007/s00300-019-02485-5
- Autumn migration phenology of polar bears (Ursus maritimus) in Hudson Bay, Canada E. Miller et al. 10.1007/s00300-022-03050-3
- Seasonal evolution of the sea-ice floe size distribution in the Beaufort and Chukchi seas H. Stern et al. 10.1525/elementa.305
- Interrelated ecological impacts of climate change on an apex predator K. Laidre et al. 10.1002/eap.2071
- Drivers and consequences of apex predator diet composition in the Canadian Beaufort Sea K. Florko et al. 10.1007/s00442-020-04747-0
- Relating polar bears killed, human presence, and ice conditions in Svalbard 1987–2019 D. Vongraven et al. 10.3389/fcosc.2023.1187527
- Pelagic vs Coastal—Key Drivers of Pollutant Levels in Barents Sea Polar Bears with Contrasted Space-Use Strategies P. Blévin et al. 10.1021/acs.est.9b04626
- Efficacy of bear spray as a deterrent against polar bears J. Wilder et al. 10.1002/wsb.1403
- Anthropogenic Neighborhood Impact on Bacterial and Fungal Communities in Polar Bear Feces M. Vecherskii et al. 10.3390/ani13132067
- Contrasting Temporal Patterns of Mercury, Niche Dynamics, and Body Fat Indices of Polar Bears and Ringed Seals in a Melting Icescape D. Yurkowski et al. 10.1021/acs.est.9b06656
- Long-term variation in polar bear body condition and maternal investment relative to a changing environment T. Atwood et al. 10.1016/j.gecco.2021.e01925
- Potential impacts of offshore oil spills on polar bears in the Chukchi Sea R. Wilson et al. 10.1016/j.envpol.2017.12.057
- Effects of sea ice fragmentation on polar bear migratory movement in Hudson Bay B. Biddlecombe et al. 10.3354/meps13684
- No safe haven for polar bears in warming Arctic Q. Schiermeier 10.1038/nature.2016.20590
- A novel mark-recapture-recovery survey using genetic sampling for polar bears Ursus maritimus in Baffin Bay S. Atkinson et al. 10.3354/esr01148
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- Sea ice reduction drives genetic differentiation among Barents Sea polar bears S. Maduna et al. 10.1098/rspb.2021.1741
- Long-term impacts of climate change on coastal and transitional eco-systems in India: an overview of its current status, future projections, solutions, and policies A. Subramanian et al. 10.1039/D2RA07448F
- Grounded icebergs as maternity denning habitat for polar bears (Ursus maritimus) in North and Northeast Greenland K. Laidre & I. Stirling 10.1007/s00300-020-02695-2
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125 citations as recorded by crossref.
- Spatial and temporal variability in ringed seal (Pusa hispida) stable isotopes in the Beaufort Sea N. Boucher et al. 10.1002/ece3.6186
- Potential impacts of an autumn oil spill on polar bears summering on land in northern Alaska R. Wilson et al. 10.1016/j.biocon.2024.110558
- High winds and melting sea ice trigger landward movement in a polar bear population of concern A. Kellner et al. 10.1002/ecs2.4420
- Possible sexually selected infanticide by polar bears in western Hudson Bay D. McGeachy et al. 10.2192/URSUS-D-23-00028
- Harvesting wildlife affected by climate change: a modelling and management approach for polar bears E. Regehr et al. 10.1111/1365-2664.12864
- Complementary diet analyses reveal intraspecific and temporal variation in ringed seal (Pusa hispida) foraging in the Canadian high arctic T. Ross et al. 10.1007/s00300-021-02999-x
- Historical and potential future importance of large whales as food for polar bears K. Laidre et al. 10.1002/fee.1963
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- Global change-driven use of onshore habitat impacts polar bear faecal microbiota S. Watson et al. 10.1038/s41396-019-0480-2
- Changes in winter and spring resource selection by polar bears Ursus maritimus in Baffin Bay over two decades of sea-ice loss K. Laidre et al. 10.3354/esr00886
- Patterns of sea ice drift and polar bear (Ursus maritimus) movement in Hudson Bay N. Klappstein et al. 10.3354/meps13293
- Ringed seal demography in a changing climate J. Reimer et al. 10.1002/eap.1855
- Intrapopulation differences in polar bear movement and step selection patterns R. Wilson et al. 10.1186/s40462-022-00326-5
- Polar bear's range dynamics and survival in the Holocene H. Seppä et al. 10.1016/j.quascirev.2023.108277
- Assessing the risk of climate maladaptation for Canadian polar bears L. Rivkin et al. 10.1111/ele.14486
- Polar bear foraging on common eider eggs: estimating the energetic consequences of a climate-mediated behavioural shift P. Jagielski et al. 10.1016/j.anbehav.2020.11.009
- Space‐use strategies drive diet composition of Baffin Bay polar bears J. Stern et al. 10.1002/ecs2.4826
- Effects of sea ice decline and summer land use on polar bear home range size in the Beaufort Sea A. Pagano et al. 10.1002/ecs2.3768
- Characterizing southeast Greenland fjord surface ice and freshwater flux to support biological applications T. Moon et al. 10.5194/tc-18-4845-2024
- Reproductive senescence in polar bears in a variable environment M. Naciri et al. 10.3389/fevo.2022.920481
- Re-assessing abundance of Southern Hudson Bay polar bears by aerial survey: effects of climate change at the southern edge of the range M. Obbard et al. 10.1139/as-2018-0004
- Influence of sea ice dynamics on population energetics of Western Hudson Bay polar bears A. Johnson et al. 10.1093/conphys/coaa132
- Conservation status of polar bears (Ursus maritimus) in relation to projected sea-ice declines E. Regehr et al. 10.1098/rsbl.2016.0556
- Sea ice influence on male polar bear survival in Hudson Bay D. McGeachy et al. 10.1139/as-2023-0045
- Summer habitat selection by ringed seals (Pusa hispida) in the drifting sea ice of the northern Barents Sea K. Lone et al. 10.33265/polar.v38.3483
- Diet composition and body condition of polar bears (Ursus maritimus) in relation to sea ice habitat in the Canadian High Arctic K. Florko et al. 10.1007/s00300-021-02891-8
- Observations of intraspecific killing, cannibalism, and aggressive behavior among polar bears (Ursus maritimus) in the eastern Barents Sea and the Kara Sea E. Ivanov et al. 10.1007/s00300-020-02771-7
- Identifying shifts in maternity den phenology and habitat characteristics of polar bears (Ursus maritimus) in Baffin Bay and Kane Basin E. Escajeda et al. 10.1007/s00300-017-2172-6
- Space-use strategy affects energy requirements in Barents Sea polar bears M. Blanchet et al. 10.3354/meps13290
- The Clock Keeps Ticking: Circadian Rhythms of Free-Ranging Polar Bears J. Ware et al. 10.1177/0748730419900877
- Behavioral responses of Adélie penguins confronting a giant ice floe S. Park et al. 10.1016/j.dsr2.2022.105152
- Dynamic Fine‐Scale Sea Icescape Shapes Adult Emperor Penguin Foraging Habitat in East Antarctica S. Labrousse et al. 10.1029/2019GL084347
- Thick and old sea ice in the Beaufort Sea during summer 2020/21 was associated with enhanced transport G. Moore et al. 10.1038/s43247-022-00530-6
- Telemetry without collars: performance of fur- and ear-mounted satellite tags for evaluating the movement and behaviour of polar bears T. Ross et al. 10.1186/s40317-024-00373-2
- Community-led non-invasive polar bear monitoring in the Eeyou Marine Region of James Bay, Canada: insights on distribution and body condition during the ice-free season A. Langwieder et al. 10.1139/facets-2022-0226
- Integrated Population Modeling Provides the First Empirical Estimates of Vital Rates and Abundance for Polar Bears in the Chukchi Sea E. Regehr et al. 10.1038/s41598-018-34824-7
- Arctic sea-ice-free season projected to extend into autumn M. Lebrun et al. 10.5194/tc-13-79-2019
- Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea K. Rode et al. 10.1111/gcb.15572
- Definition differences and internal variability affect the simulated Arctic sea ice melt season A. Smith & A. Jahn 10.5194/tc-13-1-2019
- Preliminary icebreaker-based survey of polar bears around Franz Josef Land, Russia I. Popov & I. Davydova 10.2192/URSUS-D-18-00030.4
- Migration dynamics of polar bears (Ursus maritimus) in western Hudson Bay A. Bohart et al. 10.1093/beheco/araa140
- Aquatic behaviour of polar bears (Ursus maritimus) in an increasingly ice-free Arctic K. Lone et al. 10.1038/s41598-018-27947-4
- Drivers of polar bear behavior and the possible effects of prey availability on foraging strategy R. Togunov et al. 10.1186/s40462-022-00351-4
- Space use patterns affect stable isotopes of polar bears (Ursus maritimus) in the Beaufort Sea N. Boucher et al. 10.1007/s00300-019-02546-9
- Novel feeding interactions amplify the impact of species redistribution on an Arctic food web L. Pecuchet et al. 10.1111/gcb.15196
- Identifying indicators of polar bear population status K. Rode et al. 10.1016/j.ecolind.2024.111638
- Measuring adrenal and reproductive hormones in hair from Southern Beaufort Sea polar bears (Ursus maritimus) M. Van der Walt et al. 10.1016/j.ygcen.2021.113807
- A demographic survey of the Davis Strait polar bear subpopulation using physical and genetic capture‐recapture‐recovery sampling K. Dunham et al. 10.1111/mms.13107
- Phenotypic plasticity and climate change: can polar bears respond to longer Arctic summers with an adaptive fast? J. Whiteman et al. 10.1007/s00442-017-4023-0
- Modeling optimal responses and fitness consequences in a changing Arctic J. Reimer et al. 10.1111/gcb.14681
- Behaviour and characteristics of mating polar bears (Ursus maritimus) in the Beaufort Sea, Canada B. Biddlecombe et al. 10.1007/s00300-019-02485-5
- Autumn migration phenology of polar bears (Ursus maritimus) in Hudson Bay, Canada E. Miller et al. 10.1007/s00300-022-03050-3
- Seasonal evolution of the sea-ice floe size distribution in the Beaufort and Chukchi seas H. Stern et al. 10.1525/elementa.305
- Interrelated ecological impacts of climate change on an apex predator K. Laidre et al. 10.1002/eap.2071
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Discussed (final revised paper)
Latest update: 20 Nov 2024
Short summary
Polar bears, found in 19 distinct regions of the Arctic, depend on sea ice as a platform for hunting. Using satellite data of sea ice for the period 1979–2014, we found that the date of sea-ice retreat in spring is arriving weeks earlier, and the date of sea-ice advance in fall is arriving weeks later, in all 19 regions. We calculated several other measures of sea ice, which all show declines. These measures were designed to be useful for management agencies to assess polar bear habitat.
Polar bears, found in 19 distinct regions of the Arctic, depend on sea ice as a platform for...