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Conflict over parental care in house sparrows: do females use a negotiation rule?
- Source :
- Behavioral Ecology / Behavioural Ecology, Behavioral Ecology / Behavioural Ecology, 2009, 20, pp.651-656. ⟨10.1093/beheco/arp047⟩
- Publication Year :
- 2009
- Publisher :
- Oxford University Press (OUP), 2009.
-
Abstract
- Ho do parents resolve their conflict over parental care? The classical "sealed-bid" model of biparental care suggested that parents use a fixed best effort given the partner's effort. Alternatively, parents may "negotiate" their actual effort until the efforts of both partners settle down to limiting values, but in this case, the resulting efforts will not be the best responses to one another. Consequently, under the best response scenario, the response of 1 parent to the removal of its mate can be predicted from the response to a reduction in its partner's effort, whereas the "negotiation" model predicts that such an extrapolation will underestimate the effort of a parent caring alone. We tested this prediction in free-living house sparrows (Passer domesticus). We experimentally manipulated the males' parental care as follows: males' care in group 1) was reduced by using a capture--handling--release stress protocol, 2) stopped by removing the male, and 3) left as control. In response to these manipulations, control females kept their feeding rate constant, whereas male-stressed-released females showed a moderate increase of feeding rate. When this response was extrapolated to zero male effort, their effort was still significantly lower than the observed effort of male-removed females. These results suggest that females may use the negotiation rule to determine their actual parental effort. Copyright 2009, Oxford University Press.
- Subjects :
- 0106 biological sciences
mate removal
[SDE.MCG]Environmental Sciences/Global Changes
media_common.quotation_subject
Biológiai tudományok
Stress protocol
handicapping
Biology
010603 evolutionary biology
01 natural sciences
Sexual conflict
Természettudományok
Passer domesticus
0501 psychology and cognitive sciences
050102 behavioral science & comparative psychology
Ecology, Evolution, Behavior and Systematics
media_common
05 social sciences
Limiting
[SDE.ES]Environmental Sciences/Environmental and Society
biparental care
Negotiation
sexual conflict
Animal Science and Zoology
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Paternal care
Demography
Subjects
Details
- ISSN :
- 14657279 and 10452249
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- Behavioral Ecology
- Accession number :
- edsair.doi.dedup.....0a9e389163989a2b26b0f9af3359e95b