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  • 1.
    Andersson, Matilda L.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University.
    Data for: Chasing away accurate results: exhaustive chase protocols underestimate maximum metabolic rate estimates in Eurasian perch Perca fluviatilis2019Data set
  • 2.
    Blake, Chelsea A.
    et al.
    Lewis & Clark Community Coll, Natl Great Rivers Res & Educ Ctr, 1 Confluence Way, East Alton, IL 62024 USA;Lund Univ, Dept Biol, Aquat Ecol Unit, Ecol Bldg, SE-22362 Lund, Sweden.
    Andersson, Matilda L.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Lund Univ, Dept Biol, Aquat Ecol Unit, Ecol Bldg, SE-22362 Lund, Sweden.
    Hulthen, Kaj
    North Carolina State Univ, Dept Biol Sci, Box 7617, Raleigh, NC USA;North Carolina State Univ, WM Keck Ctr Behav Biol, Box 7617, Raleigh, NC USA;Lund Univ, Dept Biol, Aquat Ecol Unit, Ecol Bldg, SE-22362 Lund, Sweden.
    Nilsson, P. Anders
    Karlstad Univ, Dept Environm & Life Sci, S-65188 Karlstad, Sweden;Lund Univ, Dept Biol, Aquat Ecol Unit, Ecol Bldg, SE-22362 Lund, Sweden.
    Bronmark, Christer
    Lund Univ, Dept Biol, Aquat Ecol Unit, Ecol Bldg, SE-22362 Lund, Sweden.
    Conspecific boldness and predator species determine predation-risk consequences of prey personality2018In: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 72, no 8, article id 133Article in journal (Refereed)
    Abstract [en]

    Individual variation in the behavior of prey can influence predation risk in complex ways. We ran individual roach (Rutilus rutilus), a common freshwater fish, through a standard refuge emergence protocol to characterize their boldness, a key animal personality trait. We then paired a bold and a shy roach and exposed the pair to one of two predator species that have contrasting hunting modes to ascertain how personality traits shaped their survival during predator encounters. When a paired bold and shy prey fish interacted with a perch predator (active foraging mode), bold and shy prey were consumed in almost equal numbers. However, pike predators (ambush foraging mode) selectively consumed more shy prey, and prey body size and boldness score both contributed significantly to which prey fish was eaten. Our findings support the idea that multiple predators with different foraging modes, and hence differential selection on prey personality, could contribute to maintaining variation in personality in prey populations. Furthermore, for social species, including shoaling fish, the ultimate consequences of an individual's personality may depend upon the personality of its nearby conspecifics. Animals of the same species often look similar, but individuals show differences in their behavior that can have important consequences, for instance when these individuals interact with predators. The common roach is a freshwater fish that shows inter-individual variation in its propensity to take risks, a key personality trait often termed boldness. Variation in boldness may affect the outcome when roach interact with predators, i.e., if they get eaten or survive. However, we found the impact of roachs' personality type depends on what species of predatory fish they face. When we put a shy and a bold roach together with predatory perch, the roachs' personality did not significantly affect which individual was eaten. But when the predator was a pike, the predators selectively ate more shy roach, and the likelihood an individual would be eaten depended on their body size.

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