In some species nestling body condition has been found to correlate with fitness components such ... more In some species nestling body condition has been found to correlate with fitness components such as future survival or lifetime reproductive success. We investigated nestling condition in the Penduline Tit Remiz pendulinus, a small passerine bird that exhibits a unique breeding system. Either a male or a female abandons the clutch before incubation commences and both sexes frequently remate after desertion. Parental care is provided by only a female or a male, and about 30–40% of clutches are deserted by both parents. Apart from nestling body condition, we also investigated parental care behaviour (incubation and feeding) of males and females and thermal conditions inside the nest. Clutch size and brood size were higher in nests with female parental care. Males and females did not differ in the incubation effort, and the temperature inside the nest during incubation was similar in both types of nests. Males were found to feed nestlings more frequently than females. As a consequence,...
In some species nestling body condition has been found to correlate with fitness components such ... more In some species nestling body condition has been found to correlate with fitness components such as future survival or lifetime reproductive success. We investigated nestling condition in the Penduline Tit Remiz pendulinus, a small passerine bird that exhibits a unique breeding system. Either a male or a female abandons the clutch before incubation commences and both sexes frequently remate after desertion. Parental care is provided by only a female or a male, and about 30–40% of clutches are deserted by both parents. Apart from nestling body condition, we also investigated parental care behaviour (incubation and feeding) of males and females and thermal conditions inside the nest. Clutch size and brood size were higher in nests with female parental care. Males and females did not differ in the incubation effort, and the temperature inside the nest during incubation was similar in both types of nests. Males were found to feed nestlings more frequently than females. As a consequence,...
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Papers by Robert Pawliszko