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Negotiations over parental care: a test of alternative hypotheses in the clown anemonefish.

Authors :
Barbasch, Tina A
Branconi, Rebecca
Francis, Robin
Pacaro, Madison
Srinivasan, Maya
Jones, Geoffrey P
Buston, Peter M
Source :
Behavioral Ecology. Nov/Dec2021, Vol. 32 Issue 6, p1256-1265. 10p.
Publication Year :
2021

Abstract

In species with biparental care, conflict arises over how much each parent provides to their offspring because both parents benefit from shifting the burden of care to the other. Here, we tested alternative hypotheses for how parents will negotiate offspring care using a wild population of clownfish (Amphiprion percula). We experimentally handicapped parents by fin-clipping the female in 23 groups, the male in 23 groups, and neither parent in 23 groups and measured changes in indicators of female, male, and pair effort in response to handicapping. First, we found that handicapping resulted in a decrease in the number of eggs laid by fin-clipped females and a decrease in the amount of parental care by fin-clipped males. Second, contrary to predictions, female effort did not change in response to the male being handicapped, or vice versa. Finally, the number of embryos that matured to hatching, an indicator of pair effort, was not influenced by the manipulation, suggesting that although the handicap was effective, clownfish do not face the predicted "cost to conflict" when one parent is handicapped. Together, these results test the generality of theoretical predictions and uncover novel questions about whether and how negotiations operate in systems where interests are aligned. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10452249
Volume :
32
Issue :
6
Database :
Academic Search Index
Journal :
Behavioral Ecology
Publication Type :
Academic Journal
Accession number :
154360149
Full Text :
https://doi.org/10.1093/beheco/arab092