Nest cover and faecal glucocorticoid metabolites are linked to hatching success and telomere length in breeding Common Eiders (Somateria mollissima)

Show full item record



Permalink

http://hdl.handle.net/10138/309483

Citation

Noreikiene , K , Öst , M , Seltmann , M W , Boner , W , Monaghan , P & Jaatinen , K 2017 , ' Nest cover and faecal glucocorticoid metabolites are linked to hatching success and telomere length in breeding Common Eiders ( Somateria mollissima ) ' , Canadian Journal of Zoology , vol. 95 , no. 9 , pp. 695-703 . https://doi.org/10.1139/cjz-2016-0242

Title: Nest cover and faecal glucocorticoid metabolites are linked to hatching success and telomere length in breeding Common Eiders (Somateria mollissima)
Author: Noreikiene, K.; Öst, M.; Seltmann, M. W.; Boner, W.; Monaghan, P.; Jaatinen, K.
Contributor organization: Biosciences
Tvärminne Zoological Station
Date: 2017-09
Language: eng
Number of pages: 9
Belongs to series: Canadian Journal of Zoology
ISSN: 0008-4301
DOI: https://doi.org/10.1139/cjz-2016-0242
URI: http://hdl.handle.net/10138/309483
Abstract: Habitat-associated crypsis may affect perceived predation vulnerability, selecting for different predator avoidance strategies. Glucocorticoids could mediate the adjustment of escape responses to the extent of crypsis, introducing an overlooked source of variation in glucocorticoid-fitness relationships. However, prolonged exposure to elevated glucocorticoids may be costly, leading to accelerated telomere loss and, consequently, senescence. Here, we examined how nest cover and immunoreactive faecal glucocorticoid metabolite (fGCM) levels are linked to hatching success and telomere length in breeding female Common Eiders (Somateria mollissima (L., 1758)). We hypothesized that the degree of nest crypsis, reflecting differences in perceived predation risk, would moderate the relationship between reproductive success and fGCM levels. We also expected that telomere length would be shorter in birds with higher glucocorticoid concentration. Results showed that individuals with high fGCM levels had higher hatching success in nests with low cover, while low fGCM levels were more successful in well-concealed nests. We found that shorter telomeres were associated with high fGCM in nesting sites offering little cover and with low fGCM in well-concealed ones. This study provides the first evidence of habitat-dependent moderation of the relationships between stress physiology, telomere length and hatching success.
Subject: cost of reproduction
Common Eider
glucocorticoids
nesting habitat
Somateria mollissima
HORMONE-BEHAVIOR INTERACTIONS
BASE-LINE GLUCOCORTICOIDS
LONG-LIVED BIRDS
STRESS RESPONSIVENESS
INDIVIDUAL QUALITY
LIFE-HISTORY
REPRODUCTIVE EFFORT
QUANTITATIVE PCR
ESCAPE DECISIONS
PREDATION RISK
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: acceptedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
Noreikiene_etal ... RS_ACCEPTED_MANUSCRIPT.pdf 570.0Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record