Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands
The Lesser Black-backed Gull, Larus fuscus Linnaeus, 1758, is a surface feeder with a broad prey spectrum that forages in the North Sea on subsurface pelagic fishes and crabs swimming within 0.6 m of the sea surface. In July 2006 and in July/August 2009, we surveyed the Frisian Front area in the sou...
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ftawi:oai:epic.awi.de:52360 2023-05-15T15:56:04+02:00 Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands Baptist, Martin J van Bemmelen, Rob SA Leopold, Mardik F de Haan, Dick Flores, Hauke Couperus, Bram Fassler, Sascha Geelhoed, Steve CV 2019 https://epic.awi.de/id/eprint/52360/ https://doi.org/10.5343/bms.2017.1179 https://hdl.handle.net/10013/epic.efe47124-3ae2-4262-84cc-8f18d147eaca unknown Baptist, M. J. , van Bemmelen, R. S. , Leopold, M. F. , de Haan, D. , Flores, H. , Couperus, B. , Fassler, S. and Geelhoed, S. C. (2019) Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands , Bulletin of Marine Science, 95 (1), pp. 29-43 . doi:10.5343/bms.2017.1179 <https://doi.org/10.5343/bms.2017.1179> , hdl:10013/epic.efe47124-3ae2-4262-84cc-8f18d147eaca EPIC3Bulletin of Marine Science, 95(1), pp. 29-43, ISSN: 0007-4977 Article peerRev 2019 ftawi https://doi.org/10.5343/bms.2017.1179 2021-12-24T15:45:41Z The Lesser Black-backed Gull, Larus fuscus Linnaeus, 1758, is a surface feeder with a broad prey spectrum that forages in the North Sea on subsurface pelagic fishes and crabs swimming within 0.6 m of the sea surface. In July 2006 and in July/August 2009, we surveyed the Frisian Front area in the southern North Sea (53.4°N–54.3°N, 4.0°E–5.5°E) to determine the prey base for Lesser Black-backed Gulls. In July/August 2009, we conducted bird counts in an integrated ecosystem survey by simultaneously sampling subsurface pelagic prey by a combination of fishing and echosounding. Lesser Black-backed Gulls make use of facilitated foraging to improve the catchability of their prey. The two most important aids for facilitated foraging by Lesser Black-backed Gull in the Frisian Front were (1) multispecies feeding associations with Common Murre, Uria aalge (Pontoppidan, 1763), and (2) fisheries discarding bycatch and offal. We found that in the top meter of the water column, the natural prey base is large enough to provide for self-foraging; however, Lesser Black-backed Gulls were found to rely mainly on facilitated foraging. Article in Journal/Newspaper Common Murre Lesser black-backed gull Uria aalge uria Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Bulletin of Marine Science 95 1 29 43 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The Lesser Black-backed Gull, Larus fuscus Linnaeus, 1758, is a surface feeder with a broad prey spectrum that forages in the North Sea on subsurface pelagic fishes and crabs swimming within 0.6 m of the sea surface. In July 2006 and in July/August 2009, we surveyed the Frisian Front area in the southern North Sea (53.4°N–54.3°N, 4.0°E–5.5°E) to determine the prey base for Lesser Black-backed Gulls. In July/August 2009, we conducted bird counts in an integrated ecosystem survey by simultaneously sampling subsurface pelagic prey by a combination of fishing and echosounding. Lesser Black-backed Gulls make use of facilitated foraging to improve the catchability of their prey. The two most important aids for facilitated foraging by Lesser Black-backed Gull in the Frisian Front were (1) multispecies feeding associations with Common Murre, Uria aalge (Pontoppidan, 1763), and (2) fisheries discarding bycatch and offal. We found that in the top meter of the water column, the natural prey base is large enough to provide for self-foraging; however, Lesser Black-backed Gulls were found to rely mainly on facilitated foraging. |
format |
Article in Journal/Newspaper |
author |
Baptist, Martin J van Bemmelen, Rob SA Leopold, Mardik F de Haan, Dick Flores, Hauke Couperus, Bram Fassler, Sascha Geelhoed, Steve CV |
spellingShingle |
Baptist, Martin J van Bemmelen, Rob SA Leopold, Mardik F de Haan, Dick Flores, Hauke Couperus, Bram Fassler, Sascha Geelhoed, Steve CV Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
author_facet |
Baptist, Martin J van Bemmelen, Rob SA Leopold, Mardik F de Haan, Dick Flores, Hauke Couperus, Bram Fassler, Sascha Geelhoed, Steve CV |
author_sort |
Baptist, Martin J |
title |
Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
title_short |
Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
title_full |
Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
title_fullStr |
Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
title_full_unstemmed |
Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands |
title_sort |
self-foraging vs facilitated foraging by lesser black-backed gull (larus fuscus) at the frisian front, the netherlands |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/52360/ https://doi.org/10.5343/bms.2017.1179 https://hdl.handle.net/10013/epic.efe47124-3ae2-4262-84cc-8f18d147eaca |
genre |
Common Murre Lesser black-backed gull Uria aalge uria |
genre_facet |
Common Murre Lesser black-backed gull Uria aalge uria |
op_source |
EPIC3Bulletin of Marine Science, 95(1), pp. 29-43, ISSN: 0007-4977 |
op_relation |
Baptist, M. J. , van Bemmelen, R. S. , Leopold, M. F. , de Haan, D. , Flores, H. , Couperus, B. , Fassler, S. and Geelhoed, S. C. (2019) Self-foraging vs facilitated foraging by Lesser Black-backed Gull (Larus fuscus) at the Frisian Front, the Netherlands , Bulletin of Marine Science, 95 (1), pp. 29-43 . doi:10.5343/bms.2017.1179 <https://doi.org/10.5343/bms.2017.1179> , hdl:10013/epic.efe47124-3ae2-4262-84cc-8f18d147eaca |
op_doi |
https://doi.org/10.5343/bms.2017.1179 |
container_title |
Bulletin of Marine Science |
container_volume |
95 |
container_issue |
1 |
container_start_page |
29 |
op_container_end_page |
43 |
_version_ |
1766391552434765824 |