Bird migrations are impressive behavioral phenomena, representing complex
spatiotemporal strategies to balance costs of living while maximizing fitness. The field of bird …

Glaciers are inhabited by various cryophilic organisms ranging from single celled to
multicellular, like Tardigrada (water bears). Owing to their scattered distribution, glaciers …

Eggs of snow buntings (Plectrophenax nivealis) were applied as a bio-indicator to examine
differences in exposure to legacy persistent organic pollutants (POPs) and perflouroalkyl …

Arctic animals inhabit some of the coldest environments on the planet and have evolved
physiological mechanisms for minimizing heat loss under extreme cold. However, the Arctic …

Tundra arthropods are of considerable ecological importance as a seasonal food source for
many arctic‐breeding birds. Dietary composition and food preferences are rarely known …

In long‐distance migrants, preparation for migration is typically associated with increases in
fat and body mass, and with an enlargement of pectoralis muscle mass that likely improves …

Resident temperate passerines adjust their phenotypes to cope with winter constraints, with
peak performance in metabolic traits typically occurring during the coldest months. However …

Cold acclimatization (phenotypic adjustments to cope with cold conditions) is an imperative
requirement for birds living at high latitudes during the cold depths of winter. Despite the …

Among birds, several body composition traits typically decrease in size or mass during
breeding likely as a result of competing demands during this critical life history stage …

Arctic breeding songbirds migrate early in the spring and can face winter environments
requiring cold endurance throughout their journey. One such species, the snow bunting …