Social information, antipredatory vigilance and flight in bird flocks.
International audience I used a simulation model to study how individual responses to predation risk and vigilance strategies may lead to departure in a foraging bird flock. The model incorporates risk dilution and, to some extent, collective detection of predators. A major factor influencing birds&...
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ftccsdartic:oai:HAL:hal-00476069v1 2023-05-15T15:46:31+02:00 Social information, antipredatory vigilance and flight in bird flocks. Sirot, Etienne Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) 2006 https://hal.archives-ouvertes.fr/hal-00476069 en eng HAL CCSD Elsevier Masson hal-00476069 https://hal.archives-ouvertes.fr/hal-00476069 ISSN: 0003-3472 EISSN: 1095-8282 Animal Behaviour https://hal.archives-ouvertes.fr/hal-00476069 Animal Behaviour, Elsevier Masson, 2006, 72 (2), pp.373-382 GROUP-SIZE HUMAN DISTURBANCE COLLECTIVE DETECTION BEHAVIORAL-RESPONSES PREDATORY ATTACK TRINGA-TOTANUS BRENT GEESE TRADE-OFF FORAGERS RISK [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2006 ftccsdartic 2021-10-24T18:56:55Z International audience I used a simulation model to study how individual responses to predation risk and vigilance strategies may lead to departure in a foraging bird flock. The model incorporates risk dilution and, to some extent, collective detection of predators. A major factor influencing birds' behaviour is individual perception of predation risk. In the model, this perception is partly based on the observation of the other birds in the flock. It increases when these birds reveal their anxiety by becoming vigilant or taking flight. In general, the model describes birds' departure as a contagious phenomenon, which quickly spreads over the whole group. However, isolated flights involving only a few individuals may also occur. The model predicts that flock size and reliance on social information will strongly affect the moment that birds decide to stop feeding and take flight, even in the absence of any predator attack. In general, birds in small flocks leave the food patch sooner, and having accumulated lower energy reserves, than birds in larger groups. When disturbed, a flock may take flight instantaneously, simply because the high level of vigilance in the group increases anxiety. As a consequence, the model predicts that high levels of disturbance may have important effects on the mean level of energy reserves in the flock. (c) 2006 The Association for the Study of Animal Behaviour Published by Elsevier Ltd. All rights reserved. Article in Journal/Newspaper brent geese Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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 |
GROUP-SIZE HUMAN DISTURBANCE COLLECTIVE DETECTION BEHAVIORAL-RESPONSES PREDATORY ATTACK TRINGA-TOTANUS BRENT GEESE TRADE-OFF FORAGERS RISK [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
GROUP-SIZE HUMAN DISTURBANCE COLLECTIVE DETECTION BEHAVIORAL-RESPONSES PREDATORY ATTACK TRINGA-TOTANUS BRENT GEESE TRADE-OFF FORAGERS RISK [SDE.BE]Environmental Sciences/Biodiversity and Ecology Sirot, Etienne Social information, antipredatory vigilance and flight in bird flocks. |
topic_facet |
GROUP-SIZE HUMAN DISTURBANCE COLLECTIVE DETECTION BEHAVIORAL-RESPONSES PREDATORY ATTACK TRINGA-TOTANUS BRENT GEESE TRADE-OFF FORAGERS RISK [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience I used a simulation model to study how individual responses to predation risk and vigilance strategies may lead to departure in a foraging bird flock. The model incorporates risk dilution and, to some extent, collective detection of predators. A major factor influencing birds' behaviour is individual perception of predation risk. In the model, this perception is partly based on the observation of the other birds in the flock. It increases when these birds reveal their anxiety by becoming vigilant or taking flight. In general, the model describes birds' departure as a contagious phenomenon, which quickly spreads over the whole group. However, isolated flights involving only a few individuals may also occur. The model predicts that flock size and reliance on social information will strongly affect the moment that birds decide to stop feeding and take flight, even in the absence of any predator attack. In general, birds in small flocks leave the food patch sooner, and having accumulated lower energy reserves, than birds in larger groups. When disturbed, a flock may take flight instantaneously, simply because the high level of vigilance in the group increases anxiety. As a consequence, the model predicts that high levels of disturbance may have important effects on the mean level of energy reserves in the flock. (c) 2006 The Association for the Study of Animal Behaviour Published by Elsevier Ltd. All rights reserved. |
author2 |
Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) |
format |
Article in Journal/Newspaper |
author |
Sirot, Etienne |
author_facet |
Sirot, Etienne |
author_sort |
Sirot, Etienne |
title |
Social information, antipredatory vigilance and flight in bird flocks. |
title_short |
Social information, antipredatory vigilance and flight in bird flocks. |
title_full |
Social information, antipredatory vigilance and flight in bird flocks. |
title_fullStr |
Social information, antipredatory vigilance and flight in bird flocks. |
title_full_unstemmed |
Social information, antipredatory vigilance and flight in bird flocks. |
title_sort |
social information, antipredatory vigilance and flight in bird flocks. |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.archives-ouvertes.fr/hal-00476069 |
genre |
brent geese |
genre_facet |
brent geese |
op_source |
ISSN: 0003-3472 EISSN: 1095-8282 Animal Behaviour https://hal.archives-ouvertes.fr/hal-00476069 Animal Behaviour, Elsevier Masson, 2006, 72 (2), pp.373-382 |
op_relation |
hal-00476069 https://hal.archives-ouvertes.fr/hal-00476069 |
_version_ |
1766381204392640512 |