Stress hormone dynamics: an adaptation to migration?
(2009) In Biology letters 5. p.480-483- Abstract
- The hormone corticosterone (CORT) is an important component of a bird's response to environmental stress, but it can also have negative effects. Therefore, birds on migration are hypothesized to have repressed stress responses (migration-modulation hypothesis). In contrast to earlier studies on long-distance migrants, we evaluate this hypothesis in a population containing both migratory and resident individuals. We use a population of partially migratory blue tits (Cyanistes caeruleus) in southern Sweden as a model species. Migrants had higher CORT levels at the time of capture than residents, indicating migratory preparations, adaptation to stressors, higher allostatic load or possibly low social status. Migrants and residents had the... (More)
- The hormone corticosterone (CORT) is an important component of a bird's response to environmental stress, but it can also have negative effects. Therefore, birds on migration are hypothesized to have repressed stress responses (migration-modulation hypothesis). In contrast to earlier studies on long-distance migrants, we evaluate this hypothesis in a population containing both migratory and resident individuals. We use a population of partially migratory blue tits (Cyanistes caeruleus) in southern Sweden as a model species. Migrants had higher CORT levels at the time of capture than residents, indicating migratory preparations, adaptation to stressors, higher allostatic load or possibly low social status. Migrants and residents had the same stress response, thus contradicting the migration-modulation hypothesis. We suggest that migrants travelling short distances are more benefited than harmed by retaining the ability to respond to stress. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1412481
- author
- Nilsson, Anna LU and Sandell, Maria LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biology letters
- volume
- 5
- pages
- 480 - 483
- publisher
- Royal Society Publishing
- external identifiers
-
- wos:000267881700013
- pmid:19429650
- scopus:67849113754
- ISSN
- 1744-9561
- DOI
- 10.1098/rsbl.2009.0193
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Animal Ecology (Closed 2011) (011012001)
- id
- 9e9eb8dd-ba7d-45ae-a439-5616e3167fe9 (old id 1412481)
- date added to LUP
- 2016-04-01 12:26:11
- date last changed
- 2022-01-27 03:44:01
@article{9e9eb8dd-ba7d-45ae-a439-5616e3167fe9,
abstract = {{The hormone corticosterone (CORT) is an important component of a bird's response to environmental stress, but it can also have negative effects. Therefore, birds on migration are hypothesized to have repressed stress responses (migration-modulation hypothesis). In contrast to earlier studies on long-distance migrants, we evaluate this hypothesis in a population containing both migratory and resident individuals. We use a population of partially migratory blue tits (Cyanistes caeruleus) in southern Sweden as a model species. Migrants had higher CORT levels at the time of capture than residents, indicating migratory preparations, adaptation to stressors, higher allostatic load or possibly low social status. Migrants and residents had the same stress response, thus contradicting the migration-modulation hypothesis. We suggest that migrants travelling short distances are more benefited than harmed by retaining the ability to respond to stress.}},
author = {{Nilsson, Anna and Sandell, Maria}},
issn = {{1744-9561}},
language = {{eng}},
pages = {{480--483}},
publisher = {{Royal Society Publishing}},
series = {{Biology letters}},
title = {{Stress hormone dynamics: an adaptation to migration?}},
url = {{http://dx.doi.org/10.1098/rsbl.2009.0193}},
doi = {{10.1098/rsbl.2009.0193}},
volume = {{5}},
year = {{2009}},
}