Estimating the energetic cost of fighting in shore crabs by noninvasive monitoring of heartbeat rate
Article Abstract:
Research is presented describing the continuous monitoring of the heartbeat rate of captive shore crabs, Carcinus maenas, by a noninvasive infrared phototransducer before, after and during battles with intruder crabs.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2000
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Effect of experience on predatory behaviour of dogwhelks
Article Abstract:
Research focusing on the North Atlantic muricid gastropod Nucella lapillus shows how a mechanistic approach to analyzing behavioural processes can assist investigation of the adaptive interaction between constraints and state variables. This approach has made it possible to quantify behavioural elements of the prey-handling process and investigate the impact of experience on these processes. It was established that dogwhelks experienced with mussels undertake fewer radular rasps than inexperienced dogwhelks. This difference becomes significant with a one-tailed test.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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Cardiac and behavioural responses of mussels to risk of predation by dogwhelks
Article Abstract:
The heartbeats of Mytilus edulis (mussels) were recorded while they were experiencing threats, attack and consumption by Nucella lapillus, a predatory gastropod. Behavioural analysis was also used to assess how mussels respond to the threat of predation. Mussels increased their heart rate when dogwhelk effluent was present, with a further rise when they were attacked by dogwhelks, as well as valve gaping. When the attack methods was through drilled holes, the mussels showed increased heart rates, while those attacked between valves showed lower heart rates, indicating the injection of toxins.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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