Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability
Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Ecology Includes bibliographical references To ensure successful reproduction, seabirds must make continuous and adaptive foraging decisions in the face of uncertain prey conditions. I compared the foraging behavior (foraging ranges and diet...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/29395 2023-05-15T15:27:55+02:00 Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability Burke, Chantelle Marie, 1969- Memorial University of Newfoundland. Faculty of Science; Canada--Newfoundland and Labrador--Funk Island 2008 xv, 127 leaves : ill., maps (some col.) Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/29395 Eng eng Electronic Theses and Dissertations (14.21 MB) -- http://collections.mun.ca/PDFs/theses/Burke_Chantelle.pdf a2523374 http://collections.mun.ca/cdm/ref/collection/theses4/id/29395 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Atlantic puffin--Newfoundland and Labrador--Funk Island--Ecology Atlantic puffin--Newfoundland and Labrador--Funk Island--Food Common murre--Newfoundland and Labrador--Funk Island--Ecology Common murre--Newfoundland and Labrador--Funk Island--Food Text Electronic thesis or dissertation 2008 ftmemorialunivdc 2015-08-06T19:21:53Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Ecology Includes bibliographical references To ensure successful reproduction, seabirds must make continuous and adaptive foraging decisions in the face of uncertain prey conditions. I compared the foraging behavior (foraging ranges and diet choices) of parental common murres and Atlantic puffins at a high density, offshore colony (Funk Island) during 2 years of different forage fish availability. In a poor food year (2005), characterized by an order of magnitude decline in forage fish densities and smaller fish, murres and puffins increased the mean distance they traveled to forage by 36% and preferentially selected larger fish. These responses show flexible foraging behavior, but significantly lighter murre fledglings in 2005 (203.0 ± 4.6 g) relative to 2004 (215.0 ± 3.9 g) suggests that specialized feeding on unpredictable prey can have consequences for reproductive success. Puffins that are generalist foragers and have multiple prey load capacity were more resilient to declines in prey availability. Thesis Atlantic puffin Common Murre fratercula Fratercula arctica Newfoundland studies Uria aalge University of Newfoundland uria Memorial University of Newfoundland: Digital Archives Initiative (DAI) Newfoundland Canada Funk Island ENVELOPE(-53.181,-53.181,49.750,49.750) |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Atlantic puffin--Newfoundland and Labrador--Funk Island--Ecology Atlantic puffin--Newfoundland and Labrador--Funk Island--Food Common murre--Newfoundland and Labrador--Funk Island--Ecology Common murre--Newfoundland and Labrador--Funk Island--Food |
spellingShingle |
Atlantic puffin--Newfoundland and Labrador--Funk Island--Ecology Atlantic puffin--Newfoundland and Labrador--Funk Island--Food Common murre--Newfoundland and Labrador--Funk Island--Ecology Common murre--Newfoundland and Labrador--Funk Island--Food Burke, Chantelle Marie, 1969- Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
topic_facet |
Atlantic puffin--Newfoundland and Labrador--Funk Island--Ecology Atlantic puffin--Newfoundland and Labrador--Funk Island--Food Common murre--Newfoundland and Labrador--Funk Island--Ecology Common murre--Newfoundland and Labrador--Funk Island--Food |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Ecology Includes bibliographical references To ensure successful reproduction, seabirds must make continuous and adaptive foraging decisions in the face of uncertain prey conditions. I compared the foraging behavior (foraging ranges and diet choices) of parental common murres and Atlantic puffins at a high density, offshore colony (Funk Island) during 2 years of different forage fish availability. In a poor food year (2005), characterized by an order of magnitude decline in forage fish densities and smaller fish, murres and puffins increased the mean distance they traveled to forage by 36% and preferentially selected larger fish. These responses show flexible foraging behavior, but significantly lighter murre fledglings in 2005 (203.0 ± 4.6 g) relative to 2004 (215.0 ± 3.9 g) suggests that specialized feeding on unpredictable prey can have consequences for reproductive success. Puffins that are generalist foragers and have multiple prey load capacity were more resilient to declines in prey availability. |
author2 |
Memorial University of Newfoundland. Faculty of Science; |
format |
Thesis |
author |
Burke, Chantelle Marie, 1969- |
author_facet |
Burke, Chantelle Marie, 1969- |
author_sort |
Burke, Chantelle Marie, 1969- |
title |
Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
title_short |
Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
title_full |
Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
title_fullStr |
Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
title_full_unstemmed |
Comparative foraging ecology of parental common murres (Uria aalge) and Atlantic puffins (Fratercula arctica) in response to changes in forage fish availability |
title_sort |
comparative foraging ecology of parental common murres (uria aalge) and atlantic puffins (fratercula arctica) in response to changes in forage fish availability |
publishDate |
2008 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/29395 |
op_coverage |
Canada--Newfoundland and Labrador--Funk Island |
long_lat |
ENVELOPE(-53.181,-53.181,49.750,49.750) |
geographic |
Newfoundland Canada Funk Island |
geographic_facet |
Newfoundland Canada Funk Island |
genre |
Atlantic puffin Common Murre fratercula Fratercula arctica Newfoundland studies Uria aalge University of Newfoundland uria |
genre_facet |
Atlantic puffin Common Murre fratercula Fratercula arctica Newfoundland studies Uria aalge University of Newfoundland uria |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (14.21 MB) -- http://collections.mun.ca/PDFs/theses/Burke_Chantelle.pdf a2523374 http://collections.mun.ca/cdm/ref/collection/theses4/id/29395 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
_version_ |
1766358319019065344 |