Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus
Social foraging is common and may provide benefits of safety and public information. Public information permits faster and more accurate estimates of patch resource densities, thus allowing more effective foraging. In this paper we report on two experiments with red knots Calidris canutus, socially...
Published in: | Behavioural Processes |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://www.vliz.be/imisdocs/publications/16/278916.pdf |
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ftnioz:oai:imis.nioz.nl:247474 2023-05-15T15:48:22+02:00 Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus Bijleveld, A.I. van Gils, J.A. Jouta, J. Piersma, T. 2015 application/pdf https://www.vliz.be/imisdocs/publications/16/278916.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000359033500011 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.beproc.2014.09.003 https://www.vliz.be/imisdocs/publications/16/278916.pdf info:eu-repo/semantics/openAccess %3Ci%3EBehav.+Process.+117%3C%2Fi%3E%3A+74-81.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.beproc.2014.09.003%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.beproc.2014.09.003%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftnioz https://doi.org/10.1016/j.beproc.2014.09.003 2022-05-01T14:01:47Z Social foraging is common and may provide benefits of safety and public information. Public information permits faster and more accurate estimates of patch resource densities, thus allowing more effective foraging. In this paper we report on two experiments with red knots Calidris canutus, socially foraging shorebirds that eat bivalves on intertidal mudflats. The first experiment was designed to show that red knots are capable of using public information, and whether dominance status or sex affected its use. We showed that knots can detect the foraging success of conspecifics and choose a patch accordingly. Neither dominance status nor sex influenced public information use. In the second experiment, by manipulating group size, we investigated whether public information use affected food-patch discovery rates and patch residence times. We showed that the time needed before locating a food patch decreased in proportion to group size. Also, an individual's number of patch visits before locating the food declined with group size, and, to our surprise, their average patch residence time did as well. Moreover, knots differed in their search strategy in that some birds consistently exploited the searching efforts of others. We conclude that socially foraging knots have the potential to greatly increase their food-finding rate by using public information. Article in Journal/Newspaper Calidris canutus NIOZ Repository (Royal Netherlands Institute for Sea Research) Behavioural Processes 117 74 81 |
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Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
Social foraging is common and may provide benefits of safety and public information. Public information permits faster and more accurate estimates of patch resource densities, thus allowing more effective foraging. In this paper we report on two experiments with red knots Calidris canutus, socially foraging shorebirds that eat bivalves on intertidal mudflats. The first experiment was designed to show that red knots are capable of using public information, and whether dominance status or sex affected its use. We showed that knots can detect the foraging success of conspecifics and choose a patch accordingly. Neither dominance status nor sex influenced public information use. In the second experiment, by manipulating group size, we investigated whether public information use affected food-patch discovery rates and patch residence times. We showed that the time needed before locating a food patch decreased in proportion to group size. Also, an individual's number of patch visits before locating the food declined with group size, and, to our surprise, their average patch residence time did as well. Moreover, knots differed in their search strategy in that some birds consistently exploited the searching efforts of others. We conclude that socially foraging knots have the potential to greatly increase their food-finding rate by using public information. |
format |
Article in Journal/Newspaper |
author |
Bijleveld, A.I. van Gils, J.A. Jouta, J. Piersma, T. |
spellingShingle |
Bijleveld, A.I. van Gils, J.A. Jouta, J. Piersma, T. Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
author_facet |
Bijleveld, A.I. van Gils, J.A. Jouta, J. Piersma, T. |
author_sort |
Bijleveld, A.I. |
title |
Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
title_short |
Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
title_full |
Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
title_fullStr |
Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
title_full_unstemmed |
Benefits of foraging in small groups: An experimental study on public information use in red knots Calidris canutus |
title_sort |
benefits of foraging in small groups: an experimental study on public information use in red knots calidris canutus |
publishDate |
2015 |
url |
https://www.vliz.be/imisdocs/publications/16/278916.pdf |
genre |
Calidris canutus |
genre_facet |
Calidris canutus |
op_source |
%3Ci%3EBehav.+Process.+117%3C%2Fi%3E%3A+74-81.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.beproc.2014.09.003%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.beproc.2014.09.003%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000359033500011 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.beproc.2014.09.003 https://www.vliz.be/imisdocs/publications/16/278916.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.beproc.2014.09.003 |
container_title |
Behavioural Processes |
container_volume |
117 |
container_start_page |
74 |
op_container_end_page |
81 |
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1766383359076859904 |