Responses 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)

Current Zoology
Mark BriffaCalum Macneil

Abstract

Freshwater biodiversity and ecosystem integrity are under threat from biological invasions. The "killer shrimp" Dikerogammarus villosus is a highly predatory amphipod that has spread readily across Central Europe and recently the UK and its arrival has been associated with the significant loss of resident species. Despite this, studies of its behavioral ecology are sparse, even though its behavior may contribute to its invasion success. For the first time, we investigated antipredator "fleeing" behavior 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 behavior. These are driven by a combination of mean level among-individual differences and within-individual relative consistency in behavior, and provide the key marker for animal personalities. Second, the fleeing responses were not influenced by temperature and third, regardless of temperature, all individuals appeared to habituate to a repeated nondangerous stimulus, indicating a capacity for individual learning. We suggest that the antipredator behavior of D. villosus contributes to its rapid spread and tha...Continue Reading

References

Mar 10, 2000·Science·O E SalaD H Wall
Jan 13, 2004·Nature·Christoph SchärChristof Appenzeller
May 17, 2006·Trends in Ecology & Evolution·Andrew SihJ Chadwick Johnson
Feb 3, 2009·Trends in Ecology & Evolution·Benjamin M BolkerJada-Simone S White
Feb 3, 2009·Neurobiology of Learning and Memory·Daniel TomsicHector Maldonado
Jun 24, 2010·Biological Reviews of the Cambridge Philosophical Society·Shinichi Nakagawa, Holger Schielzeth
Apr 5, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·C MaazouziF Hervant
Jun 26, 2012·Trends in Ecology & Evolution·Max Wolf, Franz J Weissing
Nov 8, 2012·Trends in Ecology & Evolution·Claudio Carere, Francesca Gherardi

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Methods Mentioned

BETA
dissection

Software Mentioned

AICcmodavg
R Core Team
rptR
lme4
R

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