Habitat Choice and Female Preference in a Polymorphic Stickleback Population

Feller, Anna Fiona; Seehausen, Ole; Lucek, Kay Jurka Olaf; Marques, David Alexander (2016). Habitat Choice and Female Preference in a Polymorphic Stickleback Population (In Press). Evolutionary ecology research Evolutionary Ecology

[img]
Preview
Text
Feller et al. 2016_EER_Habitat choice and female preference in a polymorphic stickleback population.pdf - Accepted Version
Available under License Publisher holds Copyright.

Download (3MB) | Preview
[img]
Preview
Text
Feller_2016_EER_habitat choice and female preference in a polymorphic st....pdf - Published Version
Available under License Publisher holds Copyright.

Download (389kB) | Preview

Background: A small pond, c. 90 years old, near Bern, Switzerland contains a population of threespine stickleback (Gasterosteus aculeatus) with two distinct male phenotypes. Males of one type are large, and red, and nest in the shallow littoral zone. The males of the other are small and orange, and nest offshore at slightly greater depth. The females in this population are phenotypically highly variable but cannot easily be assigned to either male type. Question: Is the existence of two sympatric male morphs maintained by substrate-associated male nest site choice and facilitated by female mate preferences? Organisms: Male stickleback caught individually at their breeding sites. Females caught with minnow traps. Methods: In experimental tanks, we simulated the slope and substrate of the two nesting habitats. We then placed individual males in a tank and observed in which habitat the male would build his nest. In a simultaneous two-stimulus choice design, we gave females the choice between a large, red male and a small, orange one. We measured female morphology and used linear mixed effect models to determine whether female preference correlated with female morphology. Results: Both red and orange males preferred nesting in the habitat that simulated the slightly deeper offshore condition. This is the habitat occupied by the small, orange males in the pond itself. The proportion of females that chose a small orange male was similar to that which chose a large red male. Several aspects of female phenotype correlated with the male type that a female preferred.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Feller, Anna Fiona; Seehausen, Ole; Lucek, Kay Jurka Olaf and Marques, David Alexander

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

1522-0613

Publisher:

Evolutionary Ecology

Language:

English

Submitter:

Marcel Häsler

Date Deposited:

26 Apr 2016 12:25

Last Modified:

19 Sep 2017 18:51

BORIS DOI:

10.7892/boris.79067

URI:

https://boris.unibe.ch/id/eprint/79067

Actions (login required)

Edit item Edit item
Provide Feedback