onr:"swepub:oai:lup.lub.lu.se:05d7b52c-7e80-4aff-8d58-ce220736ce37"
Search: onr:"swepub:oai:lup.lub.lu.se:05d7b52c-7e80-4aff-8d58-ce220736ce37" > A hidden cost of mi...
- 1 of 1
- Previous record
- Next record
- To hitlist
A hidden cost of migration? Innate immune function versus antioxidant defense
- Eikenaar, Cas (author)
-
- Isaksson, Caroline (author)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science
-
- Hegemann, Arne (author)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science
- (creator_code:org_t)
- 2018-02-07
- 2018
- English.
- In: Ecology and Evolution. - : Wiley. - 2045-7758. ; 8:5, s. 2721-2728
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Migration is energetically demanding and physiologically challenging. Migrating birds, for example, need to boost their antioxidant defenses to defeat the pro-oxidants produced during high energetic activity. The enhanced antioxidant defense possibly withdraws limited resources (e.g., energy or micronutrients) from other physiological functions, such as immune defense. Such a trade-off might not occur outside the migration seasons or in resident individuals. Here, we investigate whether there is a negative relationship between innate immune function and antioxidant defense by sampling both migrating and resident blackbirds (Turdus merula) at the same location during the same period of the annual cycle. We show that in migrating blackbirds microbial killing capacity (BKA), an integrative measure of baseline innate immune function was negatively correlated with total nonenzymatic antioxidant capacity. In contrast, in resident conspecifics, sampled at the same time and location, these two physiological measures were not correlated. This suggests that migrating birds trade off innate immune function and antioxidant defense. Furthermore, and likely a consequence of this trade-off, in migrant blackbirds BKA was positively correlated with oxidative damage to lipids. In resident blackbirds BKA and degree of lipid oxidation were uncorrelated. The mechanism and currencies of the supposed trade-off are currently unknown, but energetic investments or micronutrients are likely candidates. Future experimental studies could provide more conclusive evidence for this trade-off; yet, our results open up a new level of thinking about the physiological costs of migration.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- Avian migration
- Ecophysiology
- Immunity
- Oxidative stress
- Trade-off
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
- Ecology and Evolution (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Eikenaar, Cas
- Isaksson, Caroli ...
- Hegemann, Arne
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Evolutionary Bio ...
- Articles in the publication
- Ecology and Evol ...
- By the university
- Lund University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
