Feather corticosterone levels on wintering grounds have no carry-over effects on breeding among three populations of great skuas (Stercorarius skua). [PDF]
PLoS ONE, 2014 Environmental conditions encountered by migratory seabirds in their wintering areas can shape their fitness. However, the underlying physiological mechanisms remain largely unknown as birds are relatively inaccessible during winter.
Sophie Bourgeon +8 more
doaj +17 more sources
Research Note: A sip of stress. Effects of corticosterone supplementation in drinking water on feather corticosterone concentrations in layer pullets [PDF]
Poultry Science, 2021 : The measurement of feather corticosterone concentrations (fCORT) is a comparatively new method for the evaluation of stress in wild and captive birds and may be a useful indicator in animal welfare research.
T. Bartels +4 more
doaj +2 more sources
Research Note: It's not just stress—fecal contamination of plumage may affect feather corticosterone concentration [PDF]
Poultry Science, 2021 : The feather corticosterone concentration (fCORT) is increasingly used to assess long-term stress in birds as this indicator provides the potential to retrospectively evaluate the adrenocortical activity of a bird during the growth period of a feather ...
T. Bartels +4 more
doaj +2 more sources
Supplementary feeding increases nestling feather corticosterone early in the breeding season in house sparrows. [PDF]
Ecol Evol, 2017 Several studies on birds have proposed that a lack of invertebrate prey in urbanized areas could be the main cause for generally lower levels of breeding success compared to rural habitats.
Salleh Hudin N +6 more
europepmc +3 more sources
Feather Corticosterone Measurements of Greater Flamingos Living under Different Forms of Flight Restraint [PDF]
Animals, 2020 Deflighting zoo birds is a practice that receives increasing criticism due to its presumed incompatibility with animal welfare. To our knowledge, this is the first approach to address this problem in a scientific way.
Lukas Reese +10 more
doaj +2 more sources
Genetic parameters of feather corticosterone and fault bars and correlations with production traits in turkeys (Meleagris gallopavo) [PDF]
Scientific Reports, 2023 Robustness can refer to an animal’s ability to overcome perturbations. Intense selection for production traits in livestock has resulted in reduced robustness which has negative implications for livability as well as production.
Emily M. Leishman +8 more
doaj +2 more sources
Effects of Flight Restraint and Housing Conditions on Feather Corticosterone in White Storks Under Human Care [PDF]
AnimalsFlight is part of the natural behaviours of most bird species, and as a consequence, flight restraint in zoos, even for those species that are primarily ground-dwelling, encounters increasing animal welfare concerns.
Frederike Liermann +6 more
doaj +2 more sources
Phaeomelanin matters: Redness associates with inter-individual differences in behaviour and feather corticosterone in male scops owls (Otus scops). [PDF]
PLoS ONE, 2020 Individuals within populations often show consistent variation in behavioural and physiological traits which are frequently inter-correlated, potentially leading to phenotypic integration.
Ángel Cruz-Miralles +4 more
doaj +2 more sources
Feather Corticosterone Measurements and Behavioral Observations in the Great White Pelican (Pelecanus onocrotalus) Living under Different Flight Restraint Conditions in German Zoos [PDF]
Animals, 2021 The pinioning of birds was previously one of the most-accepted forms of mutilation in zoos. Despite a lack of knowledge on the effects of deflighting procedures with regard to the well-being of deflighted birds, pelicans are often reversibly deflighted ...
Gudrun Haase +10 more
doaj +2 more sources
Do wild-caught urban house sparrows show desensitized stress responses to a novel stressor? [PDF]
Biology Open, 2018 While urbanization exposes individuals to novel challenges, urban areas may also constitute stable environments in which seasonal fluctuations are buffered.
Noraine Salleh Hudin +7 more
doaj +4 more sources