Browsing NTNU Open by Author "Kitaysky, Alexander S."
Now showing items 1-5 of 5
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Corticosterone mediates carry-over effects between breeding and migration in the kittiwake Rissa tridactyla
Schultner, Jannik; Moe, Børge; Chastel, Olivier; Tartu, Sabrina; Bech, Claus; Kitaysky, Alexander S. (Journal article; Peer reviewed, 2014)Carry-over effects, i.e. when processes in one season influence processes in the next, are believed to have important effects on behavior and fitness in animals. Despite an increasing interest in the identification of ... -
Differential reproductive responses to stress reveal the role of life-history strategies within a species
Schultner, Jannik; Kitaysky, Alexander S.; Gabrielsen, Geir W.; Hatch, Scott; Bech, Claus (Journal article; Peer reviewed, 2013)Life-history strategies describe that ‘slow’- in contrast to ‘fast’-living species allocate resources cautiously towards reproduction to enhance survival. Recent evidence suggests that variation in strategies exists not ... -
Migration and stress during reproduction govern telomere dynamics in a seabird
Schultner, Jannik; Moe, Børge; Chastel, Olivier; Bech, Claus; Kitaysky, Alexander S. (Journal article; Peer reviewed, 2014)Changes in telomere length are believed to reflect changes in physiological state and life expectancy in animals. However, much remains unknown about the determinants of telomere dynamics in wild populations, and specifically ... -
Resource allocation under stress: mechanisms and strategies in a long-lived bird
Schultner, Jannik (Doktoravhandlinger ved NTNU, 1503-8181; 2014:25, Doctoral thesis, 2014)The marine environment is currently undergoing critical modification in the wake of global climate change. Marine animals are, consequently, expected to experience increasing periods of nutritionally stressful conditions. ... -
Thyroid hormones correlate with basal metabolic rate but not field metabolic rate in a wild bird species
Welcker, Jorg Otto; Chastel, Olivier; Gabrielsen, Geir W.; Guillaumin, Jerome; Kitaysky, Alexander S.; Speakman, John R.; Tremblay, Yann; Bech, Claus (Journal article; Peer reviewed, 2013)Thyroid hormones (TH) are known to stimulate in vitro oxygen consumption of tissues in mammals and birds. Hence, in many laboratory studies a positive relationship between TH concentrations and basal metabolic rate (BMR) ...