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Variable individual consistency in timing and destination of winter migrating fish.

Brodersen, Jakob LU ; Nilsson, Anders LU ; Chapman, Ben LU ; Skov, Christian LU ; Hansson, Lars-Anders LU and Brönmark, Christer LU (2012) In Biology Letters 8. p.21-23
Abstract
Migration is an important event in the life history of many animals, but there is considerable variation within populations in the timing and final destination. Such differential migration at the population level can be strongly determined by individuals showing different consistencies in migratory traits. By tagging individual cyprinid fish with uniquely coded electronic tags, and recording their winter migrations from lakes to streams for 6 consecutive years, we obtained highly detailed long-term information on the differential migration patterns of individuals. We found that individual migrants showed consistent site fidelities for over-wintering streams over multiple migratory seasons and that they were also consistent in their... (More)
Migration is an important event in the life history of many animals, but there is considerable variation within populations in the timing and final destination. Such differential migration at the population level can be strongly determined by individuals showing different consistencies in migratory traits. By tagging individual cyprinid fish with uniquely coded electronic tags, and recording their winter migrations from lakes to streams for 6 consecutive years, we obtained highly detailed long-term information on the differential migration patterns of individuals. We found that individual migrants showed consistent site fidelities for over-wintering streams over multiple migratory seasons and that they were also consistent in their seasonal timing of migration. Our data also suggest that consistency itself can be considered as an individual trait, with migrants that exhibit consistent site fidelity also showing consistency in migratory timing. The finding of a mixture of both consistent and inconsistent individuals within a population furthers our understanding of intrapopulation variability in migration strategies, and we hypothesize that environmental variation can maintain such different strategies. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biology Letters
volume
8
pages
21 - 23
publisher
Royal Society
external identifiers
  • wos:000299322200007
  • pmid:21813551
  • scopus:84856288430
ISSN
1744-9561
DOI
10.1098/rsbl.2011.0634
project
CAnMove
BECC
language
English
LU publication?
yes
id
773feaf8-c2fd-489b-a543-2f74a0924c05 (old id 2151520)
date added to LUP
2011-08-31 09:08:45
date last changed
2017-08-27 03:23:41
@article{773feaf8-c2fd-489b-a543-2f74a0924c05,
  abstract     = {Migration is an important event in the life history of many animals, but there is considerable variation within populations in the timing and final destination. Such differential migration at the population level can be strongly determined by individuals showing different consistencies in migratory traits. By tagging individual cyprinid fish with uniquely coded electronic tags, and recording their winter migrations from lakes to streams for 6 consecutive years, we obtained highly detailed long-term information on the differential migration patterns of individuals. We found that individual migrants showed consistent site fidelities for over-wintering streams over multiple migratory seasons and that they were also consistent in their seasonal timing of migration. Our data also suggest that consistency itself can be considered as an individual trait, with migrants that exhibit consistent site fidelity also showing consistency in migratory timing. The finding of a mixture of both consistent and inconsistent individuals within a population furthers our understanding of intrapopulation variability in migration strategies, and we hypothesize that environmental variation can maintain such different strategies.},
  author       = {Brodersen, Jakob and Nilsson, Anders and Chapman, Ben and Skov, Christian and Hansson, Lars-Anders and Brönmark, Christer},
  issn         = {1744-9561},
  language     = {eng},
  pages        = {21--23},
  publisher    = {Royal Society},
  series       = {Biology Letters},
  title        = {Variable individual consistency in timing and destination of winter migrating fish.},
  url          = {http://dx.doi.org/10.1098/rsbl.2011.0634},
  volume       = {8},
  year         = {2012},
}