Marine top predators as climate and ecosystem sentinels

EL Hazen, B Abrahms, S Brodie… - Frontiers in Ecology …, 2019 - Wiley Online Library
The rapid pace of environmental change in the Anthropocene necessitates the development
of a new suite of tools for measuring ecosystem dynamics. Sentinel species can provide …

Climate change impacts on sea-ice ecosystems and associated ecosystem services

NS Steiner, J Bowman, K Campbell, M Chierici… - Elem Sci …, 2021 - online.ucpress.edu
A rigorous synthesis of the sea-ice ecosystem and linked ecosystem services highlights that
the sea-ice ecosystem supports all 4 ecosystem service categories, that sea-ice ecosystems …

Fasting season length sets temporal limits for global polar bear persistence

PK Molnár, CM Bitz, MM Holland, JE Kay… - Nature Climate …, 2020 - nature.com
Polar bears (Ursus maritimus) require sea ice for capturing seals and are expected to
decline range-wide as global warming and sea-ice loss continue,. Estimating when different …

Glacial ice supports a distinct and undocumented polar bear subpopulation persisting in late 21st-century sea-ice conditions

KL Laidre, MA Supple, EW Born, EV Regehr, Ø Wiig… - Science, 2022 - science.org
Polar bears are susceptible to climate warming because of their dependence on sea ice,
which is declining rapidly. We present the first evidence for a genetically distinct and …

Projecting marine mammal distribution in a changing climate

GK Silber, MD Lettrich, PO Thomas… - Frontiers in Marine …, 2017 - frontiersin.org
Climate-related shifts in marine mammal range and distribution have been observed in
some populations; however, the nature and magnitude of future responses are uncertain in …

Internet blogs, polar bears, and climate-change denial by proxy

JA Harvey, D Van den Berg, J Ellers, R Kampen… - …, 2018 - academic.oup.com
Increasing surface temperatures, Arctic sea-ice loss, and other evidence of anthropogenic
global warming (AGW) are acknowledged by every major scientific organization in the world …

Interrelated ecological impacts of climate change on an apex predator

KL Laidre, S Atkinson, EV Regehr… - Ecological …, 2020 - Wiley Online Library
Climate change has broad ecological implications for species that rely on sensitive habitats.
For some top predators, loss of habitat is expected to lead to cascading behavioral …

Integrated population modeling provides the first empirical estimates of vital rates and abundance for polar bears in the Chukchi Sea

EV Regehr, NJ Hostetter, RR Wilson, KD Rode… - Scientific reports, 2018 - nature.com
Large carnivores are imperiled globally, and characteristics making them vulnerable to
extinction (eg, low densities and expansive ranges) also make it difficult to estimate …

Historical and potential future importance of large whales as food for polar bears

KL Laidre, I Stirling, JA Estes… - Frontiers in Ecology …, 2018 - Wiley Online Library
Polar bears (Ursus maritimus) are expected to be adversely impacted by a warming Arctic
due to melting of the sea‐ice platform from which they hunt ice‐breeding seals. We …

High contributions of sea ice derived carbon in polar bear (Ursus maritimus) tissue

TA Brown, MP Galicia, GW Thiemann, ST Belt… - PloS one, 2018 - journals.plos.org
Polar bears (Ursus maritimus) rely upon Arctic sea ice as a physical habitat. Consequently,
conservation assessments of polar bears identify the ongoing reduction in sea ice to …