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Weathering The Storm: Physiological And Behavioural Responses Of White-Throated Sparrows To Inclement Weather Cues, Andrea C. Boyer
Weathering The Storm: Physiological And Behavioural Responses Of White-Throated Sparrows To Inclement Weather Cues, Andrea C. Boyer
Electronic Thesis and Dissertation Repository
Changes in weather patterns and extreme weather events are becoming more common with the onset of climate change. This predicted increase in severe weather globally is alarming and it draws concern for the adaptability and ultimate survival of many species. It is clear that birds are able to cope with and respond to inclement weather with physiological and behavioural responses in many circumstances, but as environmental conditions become more severe, the adaptive coping responses of many species may be pushed to their limit. As such, it is important to understand the effects that such changes in environmental conditions will have …
The Effects Of Perceived Predation Threat On Stress Response And Memory In Birds, Chlöe S. N. Carter
The Effects Of Perceived Predation Threat On Stress Response And Memory In Birds, Chlöe S. N. Carter
Electronic Thesis and Dissertation Repository
This study examined how perception of predator cues, across three sensory modalities, affects physiology and behaviour of songbirds. I hypothesized that the perception of predator threat would elicit physiological and behavioural responses in both acute and chronic exposure conditions. My first study examined the responses of wild-caught black-capped chickadees (Poecile atricapillus) and house sparrows (Passer domesticus), as well as lab-bred zebra finches (Taeniopygia guttata), to acute predation cue exposure by coding video recorded behaviour and corticosterone analysis. My second study examined changes in black-capped chickadees’ foraging behaviour and memory retention after chronic exposure to …