Noémie Chervet
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Noémie Chervet has a total of 9 co-authors. Here are the top co-authors by number of shared publications:
- Michael Taborsky
Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland
3 shared publications Dik Heg
Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, CH‐3032 Hinterkappelen, Switzerland
2 shared publications- Dik Heg
Department of Clinical Research, University of Bern, Switzerland (D.H.).
1 shared publication Markus Zöttl
Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, 3032 Hinterkappelen, Switzerland
1 shared publication- Markus Zöttl
Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
1 shared publication Nadine Apolloni
1 shared publication
Latest Publications
- 8 January 2013
- Published by Springer Nature in Nature Communications
- Vol. 4 (1) , 1341
Kinship reduces alloparental care in cooperative cichlids where helpers pay-to-stay
Alloparental brood care, where individuals help raising the offspring of others, is generally believed to be favoured by high degrees of relatedness between helpers and recipients. Here we show that in cooperatively breeding cichlids, unrelated subordinate females provide more alloparental care than related ones when kinship between dominant and subordinate group members is experimentally manipulated. In addition, unrelated helpers increased alloparental care after we simulated egg cannibalism by helpers, an effect not shown by related helpers. By supporting predictions of pay-to-stay theory, these results suggest that in Neolamprologus pulcher, reciprocal commodity trading is important for the decision of subordinates to invest in care of the dominants’ offspring.
- 8 January 2013
- Published by Springer Nature in Nature Communications
- Vol. 4 (1) , 1341
Kinship reduces alloparental care in cooperative cichlids where helpers pay-to-stay
Alloparental brood care, where individuals help raising the offspring of others, is generally believed to be favoured by high degrees of relatedness between helpers and recipients. Here we show that in cooperatively breeding cichlids, unrelated subordinate females provide more alloparental care than related ones when kinship between dominant and subordinate group members is experimentally manipulated. In addition, unrelated helpers increased alloparental care after we simulated egg cannibalism by helpers, an effect not shown by related helpers. By supporting predictions of pay-to-stay theory, these results suggest that in Neolamprologus pulcher, reciprocal commodity trading is important for the decision of subordinates to invest in care of the dominants’ offspring.
- 1 October 2012
- Published by Elsevier in Animal Behaviour
- Vol. 84 (4) , 925-936
Behavioural type, status and social context affect behaviour and resource allocation in cooperatively breeding cichlids
- 1 October 2012
- Published by Elsevier in Animal Behaviour
- Vol. 84 (4) , 925-936
Behavioural type, status and social context affect behaviour and resource allocation in cooperatively breeding cichlids
- Open Access
- 4 May 2011
- Published by Wiley in International Journal of Evolutionary Biology
- Vol. 2011, 1-15
Repeatability and Heritability of Behavioural Types in a Social Cichlid
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 fishNeolamprologus 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.
- 4 May 2011
- Published by Wiley in International Journal of Evolutionary Biology
- Vol. 2011, 1-15
Open AccessRepeatability and Heritability of Behavioural Types in a Social Cichlid
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 fishNeolamprologus 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.