|
Résumé :
|
The two hybrids spent more time feeding and less time resting and in agonistic interaction than the parent species. Comfort behavior equaled that of mallard. None of the hybrids showed courtship behavior. In feeding, the hybrids spent more time on land than the parent species and were intermediary with respect to feeding on the water surface, dunk, and tip up. The hybrids did not dive. In aggressive interaction, the hybrids were superior to drake mallards. The observations hint at the fact that duck hybrids are well adapted to environmental conditions and able to survive, despite partially intermediary behavior.
|