Habituation potential of yellow-eyed penguins depends on sex, character and previous experience with humans
Animal populations are increasingly challenged by anthropogenic environmental changes. Species, populations and individuals vary in their ability to cope with exposure to human proximity. However, little is known about what drives habituation or sensitization in wild populations. Via behavioural observations and heart rate telemetry during experimental disturbance, we determined the habituation potential of yellow-eyed penguins, […]
Effects of artificial eggs on prolactin secretion, steroid levels, brood patch development, incubation onset and clutch size in the yellow-eyed penguin (Megadyptes antipodes)
Several studies have shown that the transition from egg laying to incubation behavior in birds is associated with changes in plasma levels of prolactin and steroid hormones. However, any effect of the tactile and visual input provided by eggs at initiating these hormonal changes has not been fully investigated in wild birds. A few days […]
Elevated hormonal stress response and reduced reproductive output in Yellow-eyed penguins exposed to unregulated tourism
The endangered, endemic Yellow-eyed penguin (Megadyptes antipodes) is one of the flagship species for New Zealand’s wildlife tourism, and recently concern has been raised that tourism-related pressures may be becoming too great. We compared two neighbouring breeding areas exposed to different levels of human disturbance. Penguins at the site exposed to unregulated tourism showed significantly […]