The massive number of seabirds (penguins and procellariiformes) and marine mammals
(cetaceans and pinnipeds)–referred to here as top predators–is one of the most iconic …

Penguins face a wide range of threats. Most observed population changes have been
negative and have happened over the last 60 years. Today, populations of 11 penguin …

Despite concerted international effort to track and interpret shifts in the abundance and
distribution of Adélie penguins, large populations continue to be identified. Here we report …

Using satellite imagery, drone imagery, and ground counts, we have assembled the first
comprehensive global population assessment of Chinstrap penguins (Pygoscelis antarctica) …

Antarctica and the Southern Ocean comprise a critical part of the Earth System. Their
environments are better understood than ever before, yet the region remains poorly …

Fast climate changes in the western Antarctic Peninsula are reducing krill density, which
along with increased fishing activities in recent decades, may have had synergistic effects …

Population trends and breeding success variability of Adélie penguins, a bioindicator of
Antarctic environments, have been attributed to changing sea-ice extents; however …

Understanding changes in abundance is crucial for conservation, but population growth
rates often vary over space and time. We use 40 years of count data (1979–2019) and …

Penguins dominate the Antarctic avifauna. As key animals in the Antarctic ecosystem, they
are monitored to evaluate the ecological status of this pristine and remote region and …

Global targets for area-based conservation and management must move beyond threshold-
based targets alone and must account for the quality of such areas. In the Southern Ocean …