Projektnummer

0053897

Zusammenfassung

The El Oro Parakeet (Pyrrhura orcesi) is a globally endangered species confined to the foothills of the Andes in south-western Ecuador. This non-territorial parrot species shows a cooperative breeding behaviour with flocks consisting of 4-15 individuals with most of the individuals contributing to breeding activities. Social organisation, relatedness within flocks and helping behaviour will be analysed by combining microsatellite data with behavioural observations. Potential ecological constraints causing the evolution of cooperative breeding will be examined, as well as possible direc...