Evolutionary dynamics and population biology of a polymorphic insect
Svensson, Erik LU
and Abbott, Jessica
LU
(2005)
In Journal of evolutionary biology
18(6).
p.1503-1514
- Abstract
- Conspicuous heritable polymorphisms are useful to address the question if morph frequencies are stable or whether they fluctuate between generations. Ecological geneticists have studied colour polymorphisms in the past, but there are few long-term studies of genetic dynamics across multiple generations. We studied morph-frequency dynamics and female fecundity in the trimorphic blue-tailed damselfly (Ischnura elegans). The morphs include a male-coloured (androchrome) type of female, which is thought to be maintained by frequency-dependent sexual conflict. Morph frequencies changed significantly between years across all populations. There was evidence for directional frequency change since androchrome females increased in 9 of 10 populations... (More)
- Conspicuous heritable polymorphisms are useful to address the question if morph frequencies are stable or whether they fluctuate between generations. Ecological geneticists have studied colour polymorphisms in the past, but there are few long-term studies of genetic dynamics across multiple generations. We studied morph-frequency dynamics and female fecundity in the trimorphic blue-tailed damselfly (Ischnura elegans). The morphs include a male-coloured (androchrome) type of female, which is thought to be maintained by frequency-dependent sexual conflict. Morph frequencies changed significantly between years across all populations. There was evidence for directional frequency change since androchrome females increased in 9 of 10 populations across a 4-year period. There was heterogeneity between populations in their evolutionary trajectories, partly caused by population age: androchrome frequencies were initially high in young populations but gradually decreased and approached the level of old populations. We discuss the possible causes of morph-frequency fluctuations, and the role of morph-specific fecundity, dispersal and other forces influencing evolutionary dynamics in this system. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/149125
- author
- Svensson, Erik
LU
and Abbott, Jessica
LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of evolutionary biology
- volume
- 18
- issue
- 6
- pages
- 1503 - 1514
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000233146000014
- pmid:16313463
- scopus:28444471208
- pmid:16313463
- ISSN
- 1420-9101
- DOI
- 10.1111/j.1420-9101.2005.00946.x
- language
- English
- LU publication?
- yes
- id
- 6160fb0b-3b47-48c1-a6f5-e5bf21343a34 (old id 149125)
- date added to LUP
- 2016-04-01 11:46:53
- date last changed
- 2025-04-04 14:48:22
@article{6160fb0b-3b47-48c1-a6f5-e5bf21343a34,
abstract = {{Conspicuous heritable polymorphisms are useful to address the question if morph frequencies are stable or whether they fluctuate between generations. Ecological geneticists have studied colour polymorphisms in the past, but there are few long-term studies of genetic dynamics across multiple generations. We studied morph-frequency dynamics and female fecundity in the trimorphic blue-tailed damselfly (Ischnura elegans). The morphs include a male-coloured (androchrome) type of female, which is thought to be maintained by frequency-dependent sexual conflict. Morph frequencies changed significantly between years across all populations. There was evidence for directional frequency change since androchrome females increased in 9 of 10 populations across a 4-year period. There was heterogeneity between populations in their evolutionary trajectories, partly caused by population age: androchrome frequencies were initially high in young populations but gradually decreased and approached the level of old populations. We discuss the possible causes of morph-frequency fluctuations, and the role of morph-specific fecundity, dispersal and other forces influencing evolutionary dynamics in this system.}},
author = {{Svensson, Erik and Abbott, Jessica}},
issn = {{1420-9101}},
language = {{eng}},
number = {{6}},
pages = {{1503--1514}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of evolutionary biology}},
title = {{Evolutionary dynamics and population biology of a polymorphic insect}},
url = {{http://dx.doi.org/10.1111/j.1420-9101.2005.00946.x}},
doi = {{10.1111/j.1420-9101.2005.00946.x}},
volume = {{18}},
year = {{2005}},
}