Manipulation of sex differences in parental care: the effect of brood size
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Cited by (94)
Sex-specific patterns of minimal compensation of care during and after short term mate removal in biparental blue tits
2020, Behavioural ProcessesCitation Excerpt :Despite its prevalence, our understanding of the dynamics of biparental care remains incomplete (Lessells, 2012) and it remains unclear to what extent one parent should respond to changes in effort by the other parent. Empirical studies have altered partner effort either through the removal of one parent (e.g. Snoeijs et al., 2005; Smiseth et al., 2005; van Breukelen and Itzkowitz, 2011) or through the manipulation of effort exerted by one parent (e.g. Wright and Cuthill, 1989, 1990a, 1990b; Sanz et al., 2000; Tajima and Nakamura, 2003; Wiebe, 2010; Leclaire et al., 2011). In the later scenario, therefore, both parents are left in situ but one parent is handicapped (Harrison et al., 2009; Lessells, 2012).
Brood size can influence maternal behaviour and chick's development in precocial birds
2017, Behavioural ProcessesCitation Excerpt :Mammal, particularly rodent, mothers of large litters spend less time in their nest and remain there for shorter periods (Grota and Ader, 1969; Elwood and Broom, 1978). Some altricial bird parents of large broods spend less time in the nest because they must provide more food (Wright and Cuthill, 1990; Leckie et al., 2008). As quail chicks are unable to regulate their temperature during their first days of life (Nichelmann and Tzschentke, 2002) they need to be warmed regularly by their mother.
Surprising flexibility in parental care revealed by experimental changes in offspring demand
2016, Animal BehaviourCitation Excerpt :Unprocessed insects could be difficult for young nestlings to swallow or digest, such that young nestlings may have been hungrier when returned to their natural parents. While there is no evidence that their natural parents compensated behaviourally, it is possible they did so either in the type of prey (e.g. Wright & Cuthill, 1990) or in the level of processing, neither of which we could assess, but which could have affected brood mass. The effect on older nestlings is also puzzling; their mass gain during the swap was similar to that achieved with their natural parents in the ‘Pre’ stage, but when they were returned to their natural parents after the swap, they gained significantly less than they achieved with their foster parents (Fig. 3).
Visitation rate, but not foraging range, responds to brood size manipulation in an aerial insectivore
2022, Behavioral Ecology and Sociobiology
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Present address: Department of Zoology, University of Bristol, Woodland Road, Bristol BS8 1UG, U.K.