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dc.contributor.authorBriffa, Mark
dc.contributor.authorJones, N
dc.contributor.authorMacNeil, C
dc.date.accessioned2015-10-21T12:58:51Z
dc.date.accessioned2016-02-25T16:00:38Z
dc.date.available2015-10-21T12:58:51Z
dc.date.available2016-02-25T16:00:38Z
dc.date.issued2016-02-01
dc.identifier.issn1674-5507
dc.identifier.issn2396-9814
dc.identifier.urihttp://hdl.handle.net/10026.1/4358
dc.description.abstract

Freshwater biodiversity and ecosystem integrity are under threat from biological invasions. The ‘killer shrimp’ Dikerogammarus villosus is a highly predatory amphipod which has spread readily across Central Europe and recently the U.K. and its arrival has been associated with the significant loss of resident species. Despite this, studies of its behavioural ecology are sparse, even though its behaviour may contribute to its invasion success. For the first time we investigated anti-predator ‘fleeing’ behaviour in D. villosus and how this changed with water temperature. Three key patterns emerged from our analysis. First, within a particular temperature condition there are moderate but consistent among-individual differences in behaviour. These are driven by a combination of mean level among-individual differences and within-individual relative consistency in behaviour, and provide the key marker for animal personalities. Second, the fleeing responses were not influenced by temperature and thirdly, regardless of temperature, all individuals appeared to habituate to a repeated non-dangerous stimulus, indicating a capacity for individual-learning. We suggest that the anti-predator behaviour of D. villosus contributes to its rapid spread and that consistent among-individual differences in behaviour may promote biological invasions across heterogeneous conditions. Robustness to changing water temperatures may also be potentially advantageous, particularly in an era of global climate change, where average temperatures could be elevated and less predictable

dc.format.extent45-51
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.relation.replaceshttp://hdl.handle.net/10026.1/3683
dc.relation.replaces10026.1/3683
dc.subjectinvasions
dc.subjectDikerogammarus villosus
dc.subjectanimal personalities
dc.subjecthabituation
dc.subjecttemperature
dc.titleResponses to threat in a freshwater invader: Longitudinal data reveal personality, habituation and robustness to changing water temperatures in the ‘killer shrimp’ Dikerogammarus villosus (Crustacea: Amphipoda).
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000374258900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue1
plymouth.volume62
plymouth.publication-statusPublished
plymouth.journalCurrent Zoology
dc.identifier.doi10.1093/cz/zov001
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA04 Psychology, Psychiatry and Neuroscience
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dc.publisher.placeEngland
dcterms.dateAccepted2015-04-07
dc.identifier.eissn2396-9814
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1093/cz/zov001
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2016-02-01
rioxxterms.typeJournal Article/Review
plymouth.oa-locationhttp://cz.oxfordjournals.org/content/62/1/45


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