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Species that are constantly exposed to disturbances, such as human disturbance or non‐lethal contacts with predators or conspecifics, can experience chronic stress. Within a species range, variation in the frequency and predictability of such disturbances can lead to population differences in stress responses. Here, we investigated the stress response of Little Penguins Eudyptula minor to an introduced...
Inter‐individual variation in behaviour has been recognised as a major driver of population ecology, but its relationship to migratory strategy has been ill‐explored. Here, we investigated whether male migrant and resident Cory's shearwaters Calonectris borealis, a long‐lived partially migratory seabird, are distinguishable by their temperament at the colony. We tracked a large number of individuals...
The factors influencing prolactin (PRL) variation in birds and in wildlife in general have rarely been investigated with respect to the physiological impacts of exposure to environmental contaminants. We investigated the associations between circulating baseline PRL levels and concentrations of eight persistent organohalogen contaminant (OHC) classes (i.e., major organochlorines and brominated flame...
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