J 2012

Is water really a barrier for the house mouse? A comparative study of two mouse subspecies

HIADLOVSKÁ, Zuzana, Markéta POLČÁKOVÁ STRNADOVÁ, Miloš MACHOLÁN and Barbora Voslajerova BIMOVA

Basic information

Original name

Is water really a barrier for the house mouse? A comparative study of two mouse subspecies

Authors

HIADLOVSKÁ, Zuzana (703 Slovakia, belonging to the institution), Markéta POLČÁKOVÁ STRNADOVÁ (203 Czech Republic, belonging to the institution), Miloš MACHOLÁN (203 Czech Republic) and Barbora Voslajerova BIMOVA (203 Czech Republic)

Edition

Folia Zoologica, Česká zemědělská univerzita v Praze, 2012, 0139-7893

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.494

RIV identification code

RIV/00216224:14310/12:00094020

Organization unit

Faculty of Science

UT WoS

000313606500013

Keywords in English

dispersal; Mus musculus domesticus; M. m. musculus; swimming; water barrier

Tags

Změněno: 17/4/2017 16:04, Ing. Andrea Mikešková

Abstract

V originále

House mice are believed to be, unlike rats, only reluctant swimmers. If water is a barrier to mouse dispersal water bodies and streams can have a substantial impact on the genetic structure of populations. Previous studies revealed influence of rivers on the position and structure of the European hybrid zone between two house mouse subspecies, Mus musculus musculus and M m. domesticus. In this study, we used a simple motivation experiment to test the disposition of both wild and inbred mice representing the subspecies to overcome a water barrier. As the more dispersing sex, males were chosen for the experiment. Mice were tested under two air/water temperature regimes, 20 degrees C and 10 degrees C. Contrary to a common belief tested animals entered water rather easily, often even engaging in repeated swimming. We found significant differences in scored behavioural parameters between the subspecies. Under the 20 degrees C regime, both wild and inbred domesticus males entered and crossed the water earlier and more often swam even when satiated. Strikingly, under the 10 degrees C regime, the results were rather equivocal but with the opposite tendencies, with musculus males being more willing to swim. We discuss implications of these findings for the hybrid zone dynamics.