The Evolution of Begging

Theoretical Approaches.- Models of Begging as a Signal of Need.- State-Dependent Begging with Asymmetries and Costs: A Genetic Algorithm Approach.- Begging and Cooperation: An Exploratory Flight.- Parental Investment in Relation to Offspring Sex.- Begging as a Signal and the Issue of Costs.- The Evolution of Complex Begging Displays.- The Sibling Negotiation Hypothesis.- Efficacy and the Design of Begging Signals.- Energetic Costs of Begging Behaviour.- Begging Behaviour and Nest Predation.- Nestling Physiology.- Appetite and the Subjectivity of Nestling Hunger.- Nestling Digestive Physiology and Begging.- Hormonal Regulation of Begging Behaviour.- Immunity and Begging.- Sibling Competition.- Begging and Asymmetric Nestling Competition.- Sibling Competition and the Evolution of Brood Size and Development Rate in Birds.- Feeding Chases in Penguins: Begging Competition on the Run?.- Sibling Competition and Parental Control: Patterns of Begging in Parrots.- Begging Versus Aggression in Avian Broodmate Competition.- Begging and Brood Parasitism.- Begging Behaviour and Host Exploitation in Parasitic Cowbirds.- Dishonest Begging and Host Manipulation by Clamator Cuckoos.- Breeding Strategy and Begging Intensity: Influences on Food Delivery by Parents and Host Selection by Parasitic Cuckoos.- Begging for Parental Care from Another Species: Specialization and Generalization in Brood-Parasitic Finches.- Statistical Approaches.- Logistic Regression and the Analysis of Begging and Parental Provisioning.- Statistical Challenges in the Study of Nestling Begging.