To eat or to feed? Prey utilization of Common Terns in the Wadden Sea
International audience Prey availability to seabirds has a profound influence on individual decisions about allocating somatic and reproductive investment. These decisions can be expressed in foraging behavior and prey utilization and have consequences for establishing relationships between changes...
Published in: | Journal of Ornithology |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2010
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352/document https://hal.archives-ouvertes.fr/hal-00634352/file/PEER_stage2_10.1007%252Fs10336-010-0590-0.pdf https://doi.org/10.1007/s10336-010-0590-0 |
id |
ftccsdartic:oai:HAL:hal-00634352v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:hal-00634352v1 2023-05-15T15:56:20+02:00 To eat or to feed? Prey utilization of Common Terns in the Wadden Sea Dänhardt, Andreas Fresemann, Tido Becker, Peter H. Institute of Avian Research 2010-10-21 https://hal.archives-ouvertes.fr/hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352/document https://hal.archives-ouvertes.fr/hal-00634352/file/PEER_stage2_10.1007%252Fs10336-010-0590-0.pdf https://doi.org/10.1007/s10336-010-0590-0 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10336-010-0590-0 hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352/document https://hal.archives-ouvertes.fr/hal-00634352/file/PEER_stage2_10.1007%252Fs10336-010-0590-0.pdf doi:10.1007/s10336-010-0590-0 info:eu-repo/semantics/OpenAccess ISSN: 0021-8375 EISSN: 1439-0361 Journal für Ornithologie = Journal of Ornithology https://hal.archives-ouvertes.fr/hal-00634352 Journal für Ornithologie = Journal of Ornithology, Springer Verlag, 2010, 152 (2), pp.347-357. ⟨10.1007/s10336-010-0590-0⟩ Foraging behavior Prey utilization Central place foraging Common Tern Wadden Sea Prey quality Feeding observations info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1007/s10336-010-0590-0 2020-12-26T05:22:33Z International audience Prey availability to seabirds has a profound influence on individual decisions about allocating somatic and reproductive investment. These decisions can be expressed in foraging behavior and prey utilization and have consequences for establishing relationships between changes in the fish populations and responses in seabird breeding performance. We report here results of an unusual opportunity to investigate the relationships between fish abundance and at-sea foraging behavior, prey utilization and food provisioning of partners and chicks of Common Terns breeding in the German Wadden Sea. High quality prey was carried out of the foraging area disproportionately often, while almost all low quality prey items were ingested by the foraging adult bird itself. Proportions of prey being used for provisioning were more similar to prey being carried out of the foraging area than to prey caught. The preferential utilization of high quality food for provisioning suggests that large proportions of low quality food being delivered to the colony may indicate a shortage of high quality food and, consequently, poor prospects of good breeding performance. Moreover, seabirds feeding whole, undigested prey items may indicate a higher abundance of high quality fish in the sea, due to selecting high quality prey for provisioning. This may result in overestimating the abundance of high quality prey fish when calculated from colony-based diet studies of single-loading seabird species such as terns alone. Article in Journal/Newspaper Common tern Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Ornithology 152 2 347 357 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Foraging behavior Prey utilization Central place foraging Common Tern Wadden Sea Prey quality Feeding observations |
spellingShingle |
Foraging behavior Prey utilization Central place foraging Common Tern Wadden Sea Prey quality Feeding observations Dänhardt, Andreas Fresemann, Tido Becker, Peter H. To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
topic_facet |
Foraging behavior Prey utilization Central place foraging Common Tern Wadden Sea Prey quality Feeding observations |
description |
International audience Prey availability to seabirds has a profound influence on individual decisions about allocating somatic and reproductive investment. These decisions can be expressed in foraging behavior and prey utilization and have consequences for establishing relationships between changes in the fish populations and responses in seabird breeding performance. We report here results of an unusual opportunity to investigate the relationships between fish abundance and at-sea foraging behavior, prey utilization and food provisioning of partners and chicks of Common Terns breeding in the German Wadden Sea. High quality prey was carried out of the foraging area disproportionately often, while almost all low quality prey items were ingested by the foraging adult bird itself. Proportions of prey being used for provisioning were more similar to prey being carried out of the foraging area than to prey caught. The preferential utilization of high quality food for provisioning suggests that large proportions of low quality food being delivered to the colony may indicate a shortage of high quality food and, consequently, poor prospects of good breeding performance. Moreover, seabirds feeding whole, undigested prey items may indicate a higher abundance of high quality fish in the sea, due to selecting high quality prey for provisioning. This may result in overestimating the abundance of high quality prey fish when calculated from colony-based diet studies of single-loading seabird species such as terns alone. |
author2 |
Institute of Avian Research |
format |
Article in Journal/Newspaper |
author |
Dänhardt, Andreas Fresemann, Tido Becker, Peter H. |
author_facet |
Dänhardt, Andreas Fresemann, Tido Becker, Peter H. |
author_sort |
Dänhardt, Andreas |
title |
To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
title_short |
To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
title_full |
To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
title_fullStr |
To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
title_full_unstemmed |
To eat or to feed? Prey utilization of Common Terns in the Wadden Sea |
title_sort |
to eat or to feed? prey utilization of common terns in the wadden sea |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352/document https://hal.archives-ouvertes.fr/hal-00634352/file/PEER_stage2_10.1007%252Fs10336-010-0590-0.pdf https://doi.org/10.1007/s10336-010-0590-0 |
genre |
Common tern |
genre_facet |
Common tern |
op_source |
ISSN: 0021-8375 EISSN: 1439-0361 Journal für Ornithologie = Journal of Ornithology https://hal.archives-ouvertes.fr/hal-00634352 Journal für Ornithologie = Journal of Ornithology, Springer Verlag, 2010, 152 (2), pp.347-357. ⟨10.1007/s10336-010-0590-0⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10336-010-0590-0 hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352 https://hal.archives-ouvertes.fr/hal-00634352/document https://hal.archives-ouvertes.fr/hal-00634352/file/PEER_stage2_10.1007%252Fs10336-010-0590-0.pdf doi:10.1007/s10336-010-0590-0 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s10336-010-0590-0 |
container_title |
Journal of Ornithology |
container_volume |
152 |
container_issue |
2 |
container_start_page |
347 |
op_container_end_page |
357 |
_version_ |
1766391780867047424 |