Behavioural responses to alarm cues by free-ranging rainbow darters (Etheostoma caeruleum)
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Abstract
Responses of fishes to chemical alarm cues have been well-documented in the laboratory, but relatively few taxa have been tested under free-ranging conditions in natural habitats. While snorkeling in a stream, we exposed rainbow darters (Etheostoma caeruleum) to skin extracts from conspecifics (alarm cue), skin extracts from heterospecifics (no alarm cue) and a blank control. Darters showed a significantly longer latency to move ('freezing') in the presence of the alarm cue relative to the other two stimuli. These results indicate that rainbow darters can detect chemical alarm cues under natural conditions and respond with appropriate antipredator behaviour.
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Behavioural responses to alarm cues by free-ranging rainbow darters (Etheostoma caeruleum)
In: BehaviourSearch for other papers by Crane in
Current site
Google Scholar
PubMed
Search for other papers by Woods in
Current site
Google Scholar
PubMed
Search for other papers by Mathis in
Current site
Google Scholar
PubMed
Abstract
Responses of fishes to chemical alarm cues have been well-documented in the laboratory, but relatively few taxa have been tested under free-ranging conditions in natural habitats. While snorkeling in a stream, we exposed rainbow darters (Etheostoma caeruleum) to skin extracts from conspecifics (alarm cue), skin extracts from heterospecifics (no alarm cue) and a blank control. Darters showed a significantly longer latency to move ('freezing') in the presence of the alarm cue relative to the other two stimuli. These results indicate that rainbow darters can detect chemical alarm cues under natural conditions and respond with appropriate antipredator behaviour.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 366 | 52 | 14 |
| Full Text Views | 106 | 6 | 0 |
| PDF Views & Downloads | 78 | 14 | 0 |
