Internal and external factors influencing foraging ecology of North Atlantic large Laridae
While foraging, a predator is expected to try maximizing its net energy gain according to given internal and external conditions. Gulls are known to be dietary generalists, which promotes flexibility in diet, foraging habitat types and prey capture techniques. I investigated the effect of internal a...
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ftunivmanitoba:oai:mspace.lib.umanitoba.ca:1993/33376 2023-06-18T03:41:46+02:00 Internal and external factors influencing foraging ecology of North Atlantic large Laridae Maynard, Laurie D. Davoren, Gail (Biological Sciences) Gillis, Darren (Biological Sciences) Ronconi, Robert (Environment and Climate Change Canada) 2018-06-27T15:05:53Z application/pdf http://hdl.handle.net/1993/33376 eng eng http://hdl.handle.net/1993/33376 open access Marine ecology master thesis 2018 ftunivmanitoba 2023-06-04T17:39:17Z While foraging, a predator is expected to try maximizing its net energy gain according to given internal and external conditions. Gulls are known to be dietary generalists, which promotes flexibility in diet, foraging habitat types and prey capture techniques. I investigated the effect of internal and external factors on the foraging behaviour of Herring and Great Black-backed gulls in coastal Newfoundland. I first examined how post-breeding failure and ice conditions affect the foraging behaviour and movement pattern of incubating Great Black-backed Gulls. I also conducted an at-sea experiment to investigate how capelin availability, along with flock size and species composition at multi-species feeding aggregations affect species-specific responses to supplemental food and foraging success of seabirds. Investigating the foraging ecology of gulls could help understand the relationship between foraging behaviour, seabird predation and gull population decline and help conservation of both gulls and other seabird species. October 2018 Master Thesis Newfoundland North Atlantic MSpace at the University of Manitoba |
institution |
Open Polar |
collection |
MSpace at the University of Manitoba |
op_collection_id |
ftunivmanitoba |
language |
English |
topic |
Marine ecology |
spellingShingle |
Marine ecology Maynard, Laurie D. Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
topic_facet |
Marine ecology |
description |
While foraging, a predator is expected to try maximizing its net energy gain according to given internal and external conditions. Gulls are known to be dietary generalists, which promotes flexibility in diet, foraging habitat types and prey capture techniques. I investigated the effect of internal and external factors on the foraging behaviour of Herring and Great Black-backed gulls in coastal Newfoundland. I first examined how post-breeding failure and ice conditions affect the foraging behaviour and movement pattern of incubating Great Black-backed Gulls. I also conducted an at-sea experiment to investigate how capelin availability, along with flock size and species composition at multi-species feeding aggregations affect species-specific responses to supplemental food and foraging success of seabirds. Investigating the foraging ecology of gulls could help understand the relationship between foraging behaviour, seabird predation and gull population decline and help conservation of both gulls and other seabird species. October 2018 |
author2 |
Davoren, Gail (Biological Sciences) Gillis, Darren (Biological Sciences) Ronconi, Robert (Environment and Climate Change Canada) |
format |
Master Thesis |
author |
Maynard, Laurie D. |
author_facet |
Maynard, Laurie D. |
author_sort |
Maynard, Laurie D. |
title |
Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
title_short |
Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
title_full |
Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
title_fullStr |
Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
title_full_unstemmed |
Internal and external factors influencing foraging ecology of North Atlantic large Laridae |
title_sort |
internal and external factors influencing foraging ecology of north atlantic large laridae |
publishDate |
2018 |
url |
http://hdl.handle.net/1993/33376 |
genre |
Newfoundland North Atlantic |
genre_facet |
Newfoundland North Atlantic |
op_relation |
http://hdl.handle.net/1993/33376 |
op_rights |
open access |
_version_ |
1769007446695608320 |