Title: | Mechanisms underlying the control of responses to predator odours in aquatic prey |
Author(s): | Mitchell MD; Bairos-Novak KR; Ferrari MCO; |
Address: | "Department of Biomedical Sciences, WCVM, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B4. Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B4. Department of Biomedical Sciences, WCVM, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B4 maud.ferrari@usask.ca" |
ISSN/ISBN: | 1477-9145 (Electronic) 0022-0949 (Linking) |
Abstract: | "In aquatic systems, chemical cues are a major source of information through which animals are able to assess the current state of their environment to gain information about local predation risk. Prey use chemicals released by predators (including cues from a predator's diet) and other prey (such as alarm cues and disturbance cues) to mediate a range of behavioural, morphological and life-history antipredator defences. Despite the wealth of knowledge on the ecology of antipredator defences, we know surprisingly little about the physiological mechanisms that control the expression of these defensive traits. Here, we summarise the current literature on the mechanisms known to specifically mediate responses to predator odours, including dietary cues. Interestingly, these studies suggest that independent pathways may control predator-specific responses, highlighting the need for greater focus on predator-derived cues when looking at the mechanistic control of responses. Thus, we urge researchers to tease apart the effects of predator-specific cues (i.e. chemicals representing a predator's identity) from those of diet-mediated cues (i.e. chemicals released from a predator's diet), which are known to mediate different ecological endpoints. Finally, we suggest some key areas of research that would greatly benefit from a more mechanistic approach" |
Keywords: | Animals Aquatic Organisms/chemistry/*physiology Cues *Diet *Odorants Predatory Behavior/*physiology Antipredator adaptation Endocrine response Kairomones Neuroplasticity Physiology; |
Notes: | "MedlineMitchell, Matthew D Bairos-Novak, Kevin R Ferrari, Maud C O eng Research Support, Non-U.S. Gov't Review England 2017/06/02 J Exp Biol. 2017 Jun 1; 220(Pt 11):1937-1946. doi: 10.1242/jeb.135137" |