Repeatability and heritability of behavioural types in a social cichlid


Autoria(s): Chervet, Neomie; Zöttl, Markus; Schürch, Roger; Taborsky, Michael; Heg, Dik
Data(s)

2011

Resumo

Aim. The quantitative genetics underlying correlated behavioural traits (‘‘animal personality’’) have hitherto been studied mainly in domesticated animals. Here we report the repeatability ( ) and heritability ( ) of behavioural types in the highly social cichlid fish Neolamprologus pulcher. Methods. We tested 1779 individuals repeatedly and calculated the 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 estimates were significant but low (e.g., pair identity 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 , in this cichlid species is low, and variability in behavioural type appears to be strongly affected by other (non)genetic effects.

Formato

application/pdf

Identificador

http://boris.unibe.ch/10040/1/321729.pdf

Chervet, Neomie; Zöttl, Markus; Schürch, Roger; Taborsky, Michael; Heg, Dik (2011). Repeatability and heritability of behavioural types in a social cichlid. International Journal of Evolutionary Biology, 2011(ID 321729), p. 321729. London: Hindawi 10.4061/2011/321729 <http://dx.doi.org/10.4061/2011/321729>

doi:10.7892/boris.10040

info:doi:10.4061/2011/321729

info:pmid:21716729

urn:issn:2090-8032

Idioma(s)

eng

Publicador

Hindawi

Relação

http://boris.unibe.ch/10040/

Direitos

info:eu-repo/semantics/openAccess

Fonte

Chervet, Neomie; Zöttl, Markus; Schürch, Roger; Taborsky, Michael; Heg, Dik (2011). Repeatability and heritability of behavioural types in a social cichlid. International Journal of Evolutionary Biology, 2011(ID 321729), p. 321729. London: Hindawi 10.4061/2011/321729 <http://dx.doi.org/10.4061/2011/321729>

Palavras-Chave #590 Animals (Zoology)
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

PeerReviewed