Global ETD Search
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Showing 1 to 4 of 4 for “"Guillemots"”.
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An Assessment of Population Genetic Structure in Guillemots (Cepphus)
… is a principal goal of evolutionary geneticists. Guillemots (Aves: Charadriiformes: Alcidae: Cepphus) provide useful systems for investigating population genetic differentiation in a genus with a wide geographic range that disperses according to a one-dimensional stepping stone model. Guillemots …
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Investigating the foraging ecology of black guillemots Cepphus grylle in relation to tidal stream turbines and marine protected areas
… may affect, and MPAs will protect, black guillemots. The aim of this thesis is to investigate these knowledge gaps relating to black guillemot foraging ecology, with a particular focus on tidal stream use.<br/>I related GPS tracking data to predictive habitat data and tidal models to …
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Set-back distances to protect nesting and roosting seabirds off Vancouver Island from boat disturbance
… Cormorants, Glaucous-winged Gulls, Pigeon Guillemots and Black Oystercatchers had less than an 8% chance of being agitated with either a kayak or motorboat approach. Roosting birds had longer response distances. Harlequin Ducks were particularly sensitive with a 25% probability of agitation …
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The effects of human disturbance on breeding and foraging birds
… success of kittiwakes Rissa tridactyla and guillemots Uria aalge (Chapter 3). By directly measuring a range of nest site parameters as well as those parameters involving human disturbance, I was able to improve the power of the analysis to detect disturbance effects over those of previous, …