The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability
Significant differences in avian visual fields are found between closely related species that differ in their foraging technique. We report marked differences in the visual fields of two auk species. In air, Common Guillemots Uria aalge have relatively narrow binocular fields typical of those found...
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crwiley:10.1111/ibi.12297 2024-09-15T18:07:07+00:00 The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability Martin, Graham R. Wanless, Sarah Wanless, Ross 2015 http://dx.doi.org/10.1111/ibi.12297 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fibi.12297 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.12297 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 157, issue 4, page 798-807 ISSN 0019-1019 1474-919X journal-article 2015 crwiley https://doi.org/10.1111/ibi.12297 2024-08-09T04:26:32Z Significant differences in avian visual fields are found between closely related species that differ in their foraging technique. We report marked differences in the visual fields of two auk species. In air, Common Guillemots Uria aalge have relatively narrow binocular fields typical of those found in non‐passerine predatory birds. Atlantic Puffins Fratercula arctica have much broader binocular fields similar to those that have hitherto been recorded in passerines and in a penguin. In water, visual fields narrow considerably and binocularity in the direction of the bill is probably abolished in both auk species. Although perceptual challenges associated with foraging are similar in both species during the breeding season, when they are piscivorous, Puffins (but not Guillemots) face more exacting perceptual challenges when foraging at other times, when they take a high proportion of small invertebrate prey. Capturing this prey probably requires more accurate, visually guided bill placement and we argue that this is met by the Puffin's broader binocular field, which is retained upon immersion; its upward orientation may enable prey to be seen in silhouette. These visual field configurations have potentially important consequences that render these birds vulnerable to collision with human artefacts underwater, but not in air. They also have consequences for vigilance behaviour. Article in Journal/Newspaper fratercula Fratercula arctica Uria aalge uria Wiley Online Library Ibis 157 4 798 807 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Significant differences in avian visual fields are found between closely related species that differ in their foraging technique. We report marked differences in the visual fields of two auk species. In air, Common Guillemots Uria aalge have relatively narrow binocular fields typical of those found in non‐passerine predatory birds. Atlantic Puffins Fratercula arctica have much broader binocular fields similar to those that have hitherto been recorded in passerines and in a penguin. In water, visual fields narrow considerably and binocularity in the direction of the bill is probably abolished in both auk species. Although perceptual challenges associated with foraging are similar in both species during the breeding season, when they are piscivorous, Puffins (but not Guillemots) face more exacting perceptual challenges when foraging at other times, when they take a high proportion of small invertebrate prey. Capturing this prey probably requires more accurate, visually guided bill placement and we argue that this is met by the Puffin's broader binocular field, which is retained upon immersion; its upward orientation may enable prey to be seen in silhouette. These visual field configurations have potentially important consequences that render these birds vulnerable to collision with human artefacts underwater, but not in air. They also have consequences for vigilance behaviour. |
author2 |
Wanless, Ross |
format |
Article in Journal/Newspaper |
author |
Martin, Graham R. Wanless, Sarah |
spellingShingle |
Martin, Graham R. Wanless, Sarah The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
author_facet |
Martin, Graham R. Wanless, Sarah |
author_sort |
Martin, Graham R. |
title |
The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
title_short |
The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
title_full |
The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
title_fullStr |
The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
title_full_unstemmed |
The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability |
title_sort |
visual fields of common guillemots uria aalge and atlantic puffins fratercula arctica: foraging, vigilance and collision vulnerability |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/ibi.12297 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fibi.12297 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.12297 |
genre |
fratercula Fratercula arctica Uria aalge uria |
genre_facet |
fratercula Fratercula arctica Uria aalge uria |
op_source |
Ibis volume 157, issue 4, page 798-807 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ibi.12297 |
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Ibis |
container_volume |
157 |
container_issue |
4 |
container_start_page |
798 |
op_container_end_page |
807 |
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1810444502196813824 |