The Sea is the Limit: Foraging Ecology of Breeding Antarctic Procellariiformes ...
In the dynamic marine environment, highly mobile predators are expected to select profitable foraging areas, especially when provisioning young in addition to meeting their own energy needs. Knowing how and where animals choose to forage is not only important to advance ecological theory, but also t...
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| Format: | Thesis |
| Language: | English |
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Apollo - University of Cambridge Repository
2022
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| Online Access: | https://dx.doi.org/10.17863/cam.93793 https://www.repository.cam.ac.uk/handle/1810/346375 |
| Summary: | In the dynamic marine environment, highly mobile predators are expected to select profitable foraging areas, especially when provisioning young in addition to meeting their own energy needs. Knowing how and where animals choose to forage is not only important to advance ecological theory, but also to assess and mitigate the impact of anthropogenic threats. In this thesis I examine the breeding-season foraging behaviour of several of the Procellariiformes, a wide-ranging, long-lived group of seabirds, many of which have experienced steep population declines since the mid-20th century. Advances in biologging technologies over the last four decades have made it possible not only to accurately track individual movements, but also to identify important behaviours at sea. In my first data chapter (Chapter 2), I combine data from multiple tag types to describe diving behaviour in three albatross species, and discuss the implications for both foraging ecology and bycatch susceptibility. Moving from foraging ... |
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