Begging Versus Aggression in Avian Broodmate Competition

@inproceedings{Drummond2002BeggingVA,
  title={Begging Versus Aggression in Avian Broodmate Competition},
  author={Hugh Drummond},
  year={2002}
}
The begging of broodmates that use aggression to compete for food has seldom been studied. Generally, subordinate broodmates beg as frequently as dominants, but receive less food. Overall relative begging frequencies of broodmates may influence parental food distributions, but these frequencies are not the main factor governing distributions. Rather, observations of boobies and diverse species suggest that aggression limits the effectiveness of begging by subordinate young by confining its… 
WHY DO SOME SIBLINGS ATTACK EACH OTHER? COMPARATIVE ANALYSIS OF AGGRESSION IN AVIAN BROODS
TLDR
It is suggested that indirect feeding, long nestling periods, and small broods, possibly in combination with other factors, have tended to favor the evolution of aggressive broodmate competition.
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TLDR
It is shown that intensity of aggression increases in species with lower parental effort (small clutch size and low provisioning rates), while size effects (adult body mass and length of nestling period) are unimportant.
Is broodmate aggression really associated with direct feeding
TLDR
Neither the assumption nor either of the predictions of the FMH was supported and, if anything, senior broodmates were more aggressive early in the nestling period when feeding was indirect, casting doubt on the ultimate influence of feeding method on use of aggression and, especially, on the role of direct feeding as a proximate trigger for aggression.
Food limitation increases aggression in juvenile meerkats
TLDR
It is shown that the frequency of aggression between littermates increased when rainfall and helper number, both predictors of the amount of food available to pups, were low, which suggests that food availability is an important factor affecting the severity of aggressive competition between offspring, even in the absence of lethal aggressive attacks.
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TLDR
Comparisons of how fathers and mothers allocated food among their offspring when chicks were free to fight versus when they were physically separated by a Plexiglas barrier provide the first experimental evidence of differential feeding by parents in a species with aggressive nestlings.
Kind to kin: weak interference competition among white stork Ciconia ciconia broodmates
TLDR
The high degree of tolerance shown by senior nestlings is unusual among birds with similar ecological and phylogenetic affinities, such as herons, and cannot be easily explained by absence of parental favouritism or proximate factors known to affect the occurrence of sibling aggression in other species.
Sibling aggression and brood reduction: a review
TLDR
It is concluded that more aspects must be considered in the design of future studies in order to understand the potential evolutionary sense of aggressive behaviour among siblings, especially those concerning food allocation decisions by parents.
Testosterone increases siblicidal aggression in black-legged kittiwake chicks (Rissa tridactyla)
TLDR
Testosterone production in the kittiwake and most likely other siblicidal species seems an important fitness mediator already early in life, outside the sexual context and not only manifesting itself in aggressive behavior but also in dominance-mediated effects on food solicitation displays toward parents.
Sibling rivalry in black-legged kittiwakes (Rissa tridactyla)
TLDR
It seems that eliminating within brood asymmetries is costly for the parents and perhaps these differences are optimal for maintaining a high efficiency index for theParents in terms of the amount of investment and the number of fledged chicks.
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