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A Comparison of Measures of Boldness and Their Relationships to Survival in Young Fish

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dc.contributor Australian Institute Of Marine Science
dc.contributor University Of Saskatchewan
dc.contributor Sch Marine & Trop Biol
dc.contributor University Of Western Australia
dc.contributor James Cook Univ
dc.contributor Univ Western Australia
dc.contributor James Cook University
dc.contributor Dept Biomed Sci
dc.contributor Australian Inst Marine Sci
dc.contributor Univ Saskatchewan
dc.contributor Western Coll Vet Med FERRARI, MAUD C. O. WHITE, JAMES R. MEEKAN, MARK G. MCCORMICK, MARK I. 2013-07-25T06:24:09Z 2017-03-21T00:55:33Z 2017-03-21T00:55:33Z 2019-07-08T02:30:53Z 2013-07-25T06:24:09Z 2013-07-25T06:24:09Z 2017-03-21T00:55:33Z 2019-07-08T02:30:53Z 2013-07-16
dc.identifier.citation White JR, Meekan MG, McCormick MI, Ferrari MCO (2013) A comparison of measures of boldness and their relationships to survival in young fish. PLoS ONE 8(7): e68900 en_US
dc.identifier.issn 1932-6203
dc.description.abstract Boldness is the propensity of an animal to engage in risky behavior. Many variations of novel-object or novel-environment tests have been used to quantify the boldness of animals, although the relationship between test outcomes has rarely been investigated. Furthermore, the relationship of outcomes to any ecological aspect of fitness is generally assumed, rather than measured directly. Our study is the first to compare how the outcomes of the same test of boldness differ among observers and how different tests of boldness relate to the survival of individuals in the field. Newly-metamorphosed lemon damselfish, Pomacentrus moluccensis, were placed onto replicate patches of natural habitat. Individual behavior was quantified using four tests (composed of a total of 12 different measures of behavior): latency to enter a novel environment, activity in a novel environment, and reactions to threatening and benign novel objects. After behavior was quantified, survival was monitored for two days during which time fish were exposed to natural predators. Variation among observers was low for most of the 12 measures, except distance moved and the threat test (reaction to probe thrust), which displayed unacceptable amounts of inter-observer variation. Overall, the results of the behavioral tests suggested that novel environment and novel object tests quantified similar behaviors, yet these behavioral measures were not interchangeable. Multiple measures of behavior within the context of novel environment or object tests were the most robust way to assess boldness and these measures have a complex relationship with survivorship of young fish in the field. Body size and distance ventured from shelter were the only variables that had a direct and positive relationship with survival.
dc.description.sponsorship Funding was provided by an ARC discovery grant, ARC Centre of Excellence for Coral Reef Studies (MIM & MGM), Australian Institute of Marine Science (MGM), the Yulgilbar Foundation and Natural Sciences and Engineering Research Council of Canada (MCOF). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher PLoS en_US
dc.relation.ispartof Null
dc.rights Attribution 3.0 Australia *
dc.rights.uri *
dc.subject Bluegill Sunfish
dc.subject Marine Fish
dc.subject Science & Technology - Other Topics
dc.subject Selective Predation
dc.subject Multidisciplinary Sciences
dc.subject Pumpkinseed Sunfish
dc.subject Coral-reef Fish
dc.subject Individual-differences
dc.subject Behavioral Syndromes
dc.subject Lepomis-macrochirus
dc.subject Personality-traits
dc.subject Guppy Poecilia-reticulata
dc.title A Comparison of Measures of Boldness and Their Relationships to Survival in Young Fish
dc.type journal article en_US
dc.identifier.doi 10.1371/journal.pone.0068900
dc.identifier.wos WOS:000322064300077

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