![](/images/graphics-bg.png)
Repeatability and Heritability of Behavioural Types in a Social Cichlid
Joint Authors
Zöttl, Markus
Chervet, Noémie
Schürch, Roger
Heg, Dik
Taborsky, Michael
Source
International Journal of Evolutionary Biology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-05-04
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Aim.
The quantitative genetics underlying correlated behavioural traits (‘‘animal personality’’) have hitherto been studied mainly in domesticated animals.
Here we report the repeatability (R) and heritability (h2) of behavioural types in the highly social cichlid fish Neolamprologus pulcher.
Methods.
We tested 1779 individuals repeatedly and calculated the h2 of behavioural types by variance components estimation (GLMM REML), using 1327 offspring from 162 broods from 74 pairs.
Results.
Repeatability of behavioural types was significant and considerable (0.546), but declined from 0.83 between tests conducted on the same day, to 0.19 on tests conducted up to 1201 days apart.
All h2 estimates were significant but low (e.g., pair identity h2=0.15±0.03 SE).
Additionally, we found significant variation between broods nested within the parent(s), but these were not related to several environmental factors tested.
Conclusions.
We conclude that despite a considerable R, h2 in this cichlid species is low, and variability in behavioural type appears to be strongly affected by other (non)genetic effects.
American Psychological Association (APA)
Chervet, Noémie& Zöttl, Markus& Schürch, Roger& Taborsky, Michael& Heg, Dik. 2011. Repeatability and Heritability of Behavioural Types in a Social Cichlid. International Journal of Evolutionary Biology،Vol. 2011, no. 2011, pp.1-15.
https://search.emarefa.net/detail/BIM-463396
Modern Language Association (MLA)
Chervet, Noémie…[et al.]. Repeatability and Heritability of Behavioural Types in a Social Cichlid. International Journal of Evolutionary Biology No. 2011 (2011), pp.1-15.
https://search.emarefa.net/detail/BIM-463396
American Medical Association (AMA)
Chervet, Noémie& Zöttl, Markus& Schürch, Roger& Taborsky, Michael& Heg, Dik. Repeatability and Heritability of Behavioural Types in a Social Cichlid. International Journal of Evolutionary Biology. 2011. Vol. 2011, no. 2011, pp.1-15.
https://search.emarefa.net/detail/BIM-463396
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463396