Blar i NTNU Open på forfatter "Bech, Claus"
-
The effect of repeated handling on telomere dynamics, body condition, and short-term survival in chicks of the Black-legged Kittiwake (Rissa tridactyla)
Gjelsvik, Øystein Hansgård (Master thesis, 2017)In the present study, effects of investigator disturbance on chicks of the Black-legged Kittiwake were investigated by looking at telomere dynamics, growth, and short-term survival. An experiment group was exposed to a ... -
The Effects of Early-Life Mercury Exposure on Natal Recruitment in Black-Legged Kittiwakes Breeding in Svalbard
Hanslin, Fredrik Øglænd (Master thesis, 2023)Livskvaliteten tidlig i livet hos krykkje (Rissa tridactyla) bestemmes av flere økologiske og miljømessige faktorer som påvirker umiddelbar overlevelse, men som også kan ha langvarige effekter ved å justere den adulte ... -
The stress of being contaminated? Adrenocortical function and reproduction in relation to persistent organic pollutants in female black legged kittiwakes
Tartu, Sabrina; Angelier, Frédéric; Herzke, Dorte; Moe, Børge; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2014)High levels of environmental pollutants such as persistent organic pollutants (POPs) including PCB and DDT have been found in the Arctic and many of those pollutants may impair reproduction through endocrine disruption. ... -
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) ... -
Variation and correlation in the timing of breeding of North Atlantic seabirds across multiple scales
Keogan, Katharine; Daunt, Francis; Wanless, Sarah; Phillips, Richard A.; Alvarez, David; Anker-Nilssen, Tycho; Barrett, Robert; Bech, Claus; Becker, Peter H.; Berglund, Per-Arvid; Bouwhuis, Sandra; Burr, Zofia M.; Chastel, Olivier; Christensen-Dalsgaard, S*; Christensen-Dalsgaard, Signe; Descamps, Sebastien; Diamond, Tony; Elliott, Kyle; Erikstad, Kjell E.; Harris, Mike; Hentati-Sundberg, Jonas; Heubeck, Martin; Kress, Stephen W.; Langset, Magdalene; Lorentsen, Svein-Håkon; Major, Heather L.; Mallory, Mark; Mellor, Mick; Miles, Will T.S.; Moe, Børge; Mostello, Carolyn; Newell, Mark; Nisbet, Ian; Reiertsen, Tone Kristin; Rock, Jennifer; Shannon, Paula; Varpe, Øystein; Lewis, Sue; Phillimore, Albert B. (Peer reviewed; Journal article, 2022)1. Timing of breeding, an important driver of fitness in many populations, is widely studied in the context of global change, yet despite considerable efforts to identify environmental drivers of seabird nesting phenology, ... -
Variation in basal metabolic rate within bats of the family Vespertilionidae
Skåra, Karoline Hansen (Master thesis, 2020)Mange fysiologiske variabler, slik som metabolsk rate, varierer med klima og breddegrad. Det finnes imildertid lite informasjon om termoregulering i flaggermus ved høye breddegrader. Derfor undersøkte jeg de termoregulerende ...