Locally differentiated cryptic pigmentation in the freshwater isopod Asellus aquaticus
(2005) In Journal of evolutionary biology 18(3). p.713-721- Abstract
- A repeated pattern of background colour matching in animals is an indication that pigmentation may be cryptic. Here, we examine the relationship between pigmentation of the freshwater isopod Asellus aquaticus and background darkness in 29 lakes, wetlands and ponds in Southern Sweden. The results show that Asellus pigmentation was correlated with substrate darkness across all localities. In seven localities, in which two contrasting substrate types were noted, Asellus populations were differentiated with respect to pigmentation. These findings thus provide phenomenological support for cryptic pigmentation in Asellus. Pigmentation generally increased with body size, but the relationship between pigmentation and size differed among... (More)
- A repeated pattern of background colour matching in animals is an indication that pigmentation may be cryptic. Here, we examine the relationship between pigmentation of the freshwater isopod Asellus aquaticus and background darkness in 29 lakes, wetlands and ponds in Southern Sweden. The results show that Asellus pigmentation was correlated with substrate darkness across all localities. In seven localities, in which two contrasting substrate types were noted, Asellus populations were differentiated with respect to pigmentation. These findings thus provide phenomenological support for cryptic pigmentation in Asellus. Pigmentation generally increased with body size, but the relationship between pigmentation and size differed among localities, possibly as a result of differences in correlational selection on pigmentation and size. Selection thus appears to have resulted in local differentiation over a small spatial scale, even within lakes and wetlands. This differentiation is a likely cause behind elevated phenotype variation noted in localities with two substrate types, suggesting that habitat heterogeneity promotes genetic diversity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/146487
- author
- Hargeby, Anders LU ; Stoltz, J and Johansson, Jonas LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of evolutionary biology
- volume
- 18
- issue
- 3
- pages
- 713 - 721
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000228396800022
- pmid:15842500
- scopus:18544374320
- ISSN
- 1420-9101
- DOI
- 10.1111/j.1420-9101.2004.00837.x
- 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: Limnology (Closed 2011) (011007000)
- id
- b8e636d5-178c-4203-b889-eae504eb21be (old id 146487)
- date added to LUP
- 2016-04-01 11:36:10
- date last changed
- 2025-04-04 14:58:01
@article{b8e636d5-178c-4203-b889-eae504eb21be,
abstract = {{A repeated pattern of background colour matching in animals is an indication that pigmentation may be cryptic. Here, we examine the relationship between pigmentation of the freshwater isopod Asellus aquaticus and background darkness in 29 lakes, wetlands and ponds in Southern Sweden. The results show that Asellus pigmentation was correlated with substrate darkness across all localities. In seven localities, in which two contrasting substrate types were noted, Asellus populations were differentiated with respect to pigmentation. These findings thus provide phenomenological support for cryptic pigmentation in Asellus. Pigmentation generally increased with body size, but the relationship between pigmentation and size differed among localities, possibly as a result of differences in correlational selection on pigmentation and size. Selection thus appears to have resulted in local differentiation over a small spatial scale, even within lakes and wetlands. This differentiation is a likely cause behind elevated phenotype variation noted in localities with two substrate types, suggesting that habitat heterogeneity promotes genetic diversity.}},
author = {{Hargeby, Anders and Stoltz, J and Johansson, Jonas}},
issn = {{1420-9101}},
language = {{eng}},
number = {{3}},
pages = {{713--721}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of evolutionary biology}},
title = {{Locally differentiated cryptic pigmentation in the freshwater isopod Asellus aquaticus}},
url = {{http://dx.doi.org/10.1111/j.1420-9101.2004.00837.x}},
doi = {{10.1111/j.1420-9101.2004.00837.x}},
volume = {{18}},
year = {{2005}},
}