25 to 36 of 14064 results
Stable isotope analyses of museum specimens provide an opportunity to examine long-term changes in avian migration strategies. Here, we determined stable isotopes of carbon (δ13C) and nitrogen (δ15N) in body […]
Sea water provides a stable environment for marine animals. Most oceanic invertebrates have body fluids similar in ionic composition to sea water. However, Antarctic coastal ecosystems are increasingly exposed to […]
Bokhorst et al.’s Matters Arising paper continues an important conversation around how vegetation change is detected and interpreted in data-sparse and logistically challenging regions such as Antarctica. In our study […]
Winter roads are lifelines for remote northern communities. Built over land, lakes, rivers, and sea ice, these travel routes are increasingly vulnerable to warming temperatures and variable precipitation. To ensure […]
Southern Hemisphere (SH) circulation and surface climate changes are emerging in recent decades. For example, in most seasons, the SH Hadley cell edge and the eddy-driven jet stream have shifted […]
Changes in sea ice concentration (SIC) and derived sea ice extent have been monitored using microwave radiometers since the late 1970s, providing information about the polar response to climate change, […]
Climate change is driving vegetation expansion in polar regions. Roland et al.1 report a 14-fold greening trend across the Antarctic Peninsula region since the 1980s, based on satellite data. However, […]
Climate‐driven alterations in sea‐ice dynamics and shifting fishing activity are reshaping ecosystems across the Arctic and Antarctic, yet conservation‐relevant information for chondrichthyans (sharks, rays, and chimaeras) remains limited. We present […]
Understanding the demography of animal populations is fundamental to conservation biology. Key parameters such as sex ratio and reproductive success are important contributors for assessing current population health, forecasting population […]
Strongly pagophilic, the Adélie penguin Pygoscelis adeliae has long been designated a sea ice obligate species, which included the requirement to find pack ice on which to molt. However, observations […]
During Pleistocene ice ages, abrupt climate changes co-occurred with switches in Atlantic Meridional Overturning Circulation (AMOC) strength. The global impact and characteristic north-south temperature pattern of these events is typically […]
The footprint and cumulative impact of national governmental programme and tourist activities is increasing at marine and terrestrial sites across Antarctica. Associated impacts on species and ecosystems include habitat degradation, […]