Journal
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
Volume 460, Issue -, Pages 1-7Publisher
ELSEVIER
DOI: 10.1016/j.jembe.2014.06.002
Keywords
Invasive predator; Predator recognition; Prey naivete; Pterois volitans; Risk-sensitive courtship; Stegastes leucostictus
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The assimilation of behavioral and evolutionary processes into conservation management provides insights into how invasive predators affect native fauna. The Indo-Pacific lionfish (Pterois volitans) has caused extensive reduction in the abundance of small-bodied reef fish within their introduced range. One possible mechanism facilitating this high predation rate may be due to prey exhibiting evolutionary naivete toward this invasive predator. Here, we tested for the potential role of prey naivete by examining the behavioral response of a prey species, the beaugregory damselfish (Stegastes leucostictus), toward this invasive predator. Damselfish demonstrated invasive predator recognition and subsequent anti-predator behavior, which may attenuate the impact posed by this invasive predator. However, damselfish under predation threat failed to modulate courtship behavior in the presence of lionfish. Therefore, benefits derived from the ability to recognize and respond appropriately to lionfish may be of little consequence if damselfish are unable to curtail high-risk courtship behavior in their presence. (C) 2014 Elsevier B.V. All rights reserved.
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