Extreme boldness precedes starvation mortality in six-lined trumpeter (Pelates sexlineatus)

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dc.contributor.author Biro, PA
dc.contributor.author Booth, DJ
dc.date.accessioned 2010-05-28T09:44:56Z
dc.date.issued 2009-10
dc.date.issued 2009-10
dc.identifier.citation Hydrobiologia, 2009, 635 (1), pp. 395 - 398
dc.identifier.citation Hydrobiologia, 2009, 635 (1), pp. 395 - 398
dc.identifier.issn 0018-8158
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/8703
dc.description.abstract Fishes are often subjected to seasonal and spatial patchiness of food sources. We tested how risk-taking behaviour in the six-lined trumpeter, an estuarine seagrass resident fish, changed with hunger level in a laboratory experiment. When repeatedly offered a risky source of food, well-fed fish did not approach it and all fish survived over a one-month trial. In contrast, fish deprived of all food boldly first approached the risky food source after only a few days without food in some cases, or after many days in other cases, and then continued to approach risky food each time it was presented. Larger individuals were more bold (and had longer starvation endurance) than smaller ones, and after statistically controlling for these size effects, there were consistent individual differences in the propensity to take risks (i.e. boldness). These results show that food- and individual-dependent boldness will together affect vulnerability to predators and influence predation rates when resources become scarce. © Springer Science+Business Media B.V. 2009.
dc.description.abstract Fishes are often subjected to seasonal and spatial patchiness of food sources. We tested how risk-taking behaviour in the six-lined trumpeter, an estuarine seagrass resident fish, changed with hunger level in a laboratory experiment. When repeatedly offered a risky source of food, well-fed fish did not approach it and all fish survived over a one-month trial. In contrast, fish deprived of all food boldly first approached the risky food source after only a few days without food in some cases, or after many days in other cases, and then continued to approach risky food each time it was presented. Larger individuals were more bold (and had longer starvation endurance) than smaller ones, and after statistically controlling for these size effects, there were consistent individual differences in the propensity to take risks (i.e. boldness). These results show that food- and individual-dependent boldness will together affect vulnerability to predators and influence predation rates when resources become scarce. © Springer Science+Business Media B.V. 2009.
dc.language eng
dc.language eng
dc.relation.isbasedon 10.1007/s10750-009-9902-x
dc.title Extreme boldness precedes starvation mortality in six-lined trumpeter (Pelates sexlineatus)
dc.type Journal Article
dc.description.version Published
dc.parent Hydrobiologia
dc.parent Hydrobiologia
dc.journal.volume 1
dc.journal.volume 635
dc.journal.number 1 en_US
dc.publocation Dordrecht, The Netherlands en_US
dc.identifier.startpage 395 en_US
dc.identifier.endpage 398 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0608 Zoology
dc.personcode 940138
dc.personcode 997647
dc.percentage 100 en_US
dc.classification.name Zoology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISI:000270652200035 en_US
dc.description.keywords Behaviour
dc.description.keywords Behaviour
dc.description.keywords Overwinter
dc.description.keywords Overwinter
dc.description.keywords Personality
dc.description.keywords Personality
dc.description.keywords Risk taking
dc.description.keywords Risk taking
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history Closed (ID: 3)


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