Behavioural plasticity of lake charr (Salvelinus namaycush) X brook charr (Salvelinus fontinalis) F1 hybrids in response to varying social environment

Lake x brook F1 hybrid charr were observed in heterogeneous groups with lake charr or brook charr to assess the effects of different species on hybrid social behaviour. Levels of behavioural plasticity were low in relation to the behavioural differences between the parental and hybrid types. Feeding...

Full description

Saved in:
Bibliographic Details
Published inBehavioural processes Vol. 8; no. 2; pp. 147 - 156
Main Authors Ferguson, M.M, Noakes, D.L.G
Format Journal Article
LanguageEnglish
Published Netherlands 01.05.1983
Subjects
freshwater
freshwater fish
Salvelinus fontinalis
Salvelinus namaycush
Canada
Ontario
Online AccessGet full text

Cover

More Information
Summary:Lake x brook F1 hybrid charr were observed in heterogeneous groups with lake charr or brook charr to assess the effects of different species on hybrid social behaviour. Levels of behavioural plasticity were low in relation to the behavioural differences between the parental and hybrid types. Feeding behaviour showed the most dramatic change, with higher levels in the lake charr treatment and lower levels in the brook charr treatment than controls, suggesting social facilitation. Even though only two measures varied significantly between treatments, there was a tendency for the frequencies and durations of all agonistic measures to increase in the presence of lake charr and decrease with brook charr. A cost-benefit argument is presented to account for this trend.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0376-6357
1872-8308
DOI:10.1016/0376-6357(83)90003-7