Changes in behavioural trait integration following rapid ecotype divergence in an aquatic isopod.
Harris, Sanna LU ; Eroukhmanoff, F ; Green, K K ; Svensson, Erik LU
and Pettersson, Lars
LU
(2011)
In Journal of evolutionary biology
24.
p.1887-1896
- Abstract
- Colonization of new habitats can relax selection pressures, and traits or trait combinations no longer selected for might become reduced or lost. We investigated behavioural differentiation and behavioural trait integration in the freshwater isopod Asellus aquaticus. This isopod has recently colonized a novel habitat and diverged into two ecotypes which encounter different predator faunas. We investigated sex-specific behavioural differences and phenotypic integration in three behavioural assays: (i) time to emerge (TE) from a shelter, (ii) activity and (iii) escape behaviour. General activity and escape behaviour differed between ecotypes. Furthermore, general activity and TE differed between sexes. Behavioural traits were more frequently... (More)
- Colonization of new habitats can relax selection pressures, and traits or trait combinations no longer selected for might become reduced or lost. We investigated behavioural differentiation and behavioural trait integration in the freshwater isopod Asellus aquaticus. This isopod has recently colonized a novel habitat and diverged into two ecotypes which encounter different predator faunas. We investigated sex-specific behavioural differences and phenotypic integration in three behavioural assays: (i) time to emerge (TE) from a shelter, (ii) activity and (iii) escape behaviour. General activity and escape behaviour differed between ecotypes. Furthermore, general activity and TE differed between sexes. Behavioural traits were more frequently correlated in the ancestral habitat, and phenotypic integration tended to be higher in this habitat as well. Our study suggests that different predator types, but also other ecological factors such as habitat matrices and population densities, might explain the differences in behavioural integration in these ecotypes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2008272
- author
- Harris, Sanna
LU
; Eroukhmanoff, F
; Green, K K
; Svensson, Erik
LU
and Pettersson, Lars
LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- antipredator behaviour, Asellus aquaticus, behavioural correlation, behavioural syndrome, phenotypic integration, predation, rapid divergence
- in
- Journal of evolutionary biology
- volume
- 24
- pages
- 1887 - 1896
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000293910500005
- pmid:21658187
- scopus:80051669968
- ISSN
- 1420-9101
- DOI
- 10.1111/j.1420-9101.2011.02322.x
- language
- English
- LU publication?
- yes
- id
- ab5566f9-c708-41a9-962f-31f17269744a (old id 2008272)
- date added to LUP
- 2016-04-01 10:29:39
- date last changed
- 2023-04-03 07:55:07
@article{ab5566f9-c708-41a9-962f-31f17269744a,
abstract = {{Colonization of new habitats can relax selection pressures, and traits or trait combinations no longer selected for might become reduced or lost. We investigated behavioural differentiation and behavioural trait integration in the freshwater isopod Asellus aquaticus. This isopod has recently colonized a novel habitat and diverged into two ecotypes which encounter different predator faunas. We investigated sex-specific behavioural differences and phenotypic integration in three behavioural assays: (i) time to emerge (TE) from a shelter, (ii) activity and (iii) escape behaviour. General activity and escape behaviour differed between ecotypes. Furthermore, general activity and TE differed between sexes. Behavioural traits were more frequently correlated in the ancestral habitat, and phenotypic integration tended to be higher in this habitat as well. Our study suggests that different predator types, but also other ecological factors such as habitat matrices and population densities, might explain the differences in behavioural integration in these ecotypes.}},
author = {{Harris, Sanna and Eroukhmanoff, F and Green, K K and Svensson, Erik and Pettersson, Lars}},
issn = {{1420-9101}},
keywords = {{antipredator behaviour; Asellus aquaticus; behavioural correlation; behavioural syndrome; phenotypic integration; predation; rapid divergence}},
language = {{eng}},
pages = {{1887--1896}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of evolutionary biology}},
title = {{Changes in behavioural trait integration following rapid ecotype divergence in an aquatic isopod.}},
url = {{http://dx.doi.org/10.1111/j.1420-9101.2011.02322.x}},
doi = {{10.1111/j.1420-9101.2011.02322.x}},
volume = {{24}},
year = {{2011}},
}