Escape path complexity and its context dependency in Pacific blue-eyes (Pseudomugil signifer)

@article{HerbertRead2017EscapePC,
  title={Escape path complexity and its context dependency in Pacific blue-eyes (Pseudomugil signifer)},
  author={James E. Herbert-Read and Ashley J. W. Ward and David J. T. Sumpter and Richard Philip Mann},
  journal={Journal of Experimental Biology},
  year={2017},
  volume={220},
  pages={2076 - 2081}
}
ABSTRACT The escape paths prey animals take following a predatory attack appear to be highly unpredictable – a property that has been described as ‘protean behaviour’. Here, we present a method of quantifying the escape paths of individual animals using a path complexity approach. When individual fish (Pseudomugil signifer) were attacked, we found that a fish's movement path rapidly increased in complexity following the attack. This path complexity remained elevated (indicating a more… 

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References

SHOWING 1-10 OF 72 REFERENCES
How stimulus direction determines the trajectory of the Mauthner-initiated escape response in a teleost fish.
TLDR
Behavioral evidence supports the previous notion that the underlying neural command is ballistic and does not use sensory information from the stimulus once the movement begins, and indicates that the fish probably utilizes information on obstacle location in the interval leading up to the trigger stimulus.
Cockroaches Keep Predators Guessing by Using Preferred Escape Trajectories
Context-dependent variability in the components of fish escape response: integrating locomotor performance and behavior.
  • P. Domenici
  • Psychology, Environmental Science
    Journal of experimental zoology. Part A, Ecological genetics and physiology
  • 2010
TLDR
An integrative approach is suggested for a full, ecologically relevant, assessment of escape performance in fish, which suggests performance in other components of the escape response is also not always maximized.
Development of predator evasion in Atlantic herring, Clupea harengus L.
  • L. Fuiman
  • Environmental Science
    Animal Behaviour
  • 1993
TLDR
Development of evasive behaviour was studied from observations of juvenile Atlantic herring preying on conspecific larvae, suggesting that larger larvae are better able to judge the magnitude of a threat.
Escape manoeuvres of schooling Clupea harengus
TLDR
It is hypothesized that when herring are schooling, the ability of each fish to correct its trajectory following turns towards the stimulus is enhanced, and that long latency escapes may be responses to startled neighbours or simply weak responses to the sound stimulus.
The Visually Mediated Escape Response in Fish: Predicting Prey Responsiveness and the Locomotor Behaviour of Predators and Prey
TLDR
A simple theoretical framework for optimal escape trajectories is presented here and compared with existing data on Escape trajectories of fish reacting to startling stimuli and the issue of scaling of ALT is discussed using examples from field and laboratory studies.
A multi-stage anti-predator response increases information on predation risk
TLDR
It is shown here that fiddler crabs gather qualitatively different visual information during successive stages of their escape sequence, suggesting that multi-stage anti-predator behaviours serve not only to successively reduce risk but also to increase the quality of information with regards to the actual risk.
Protean defence by prey animals
TLDR
A number of poorly understood behavioural aspects of the ecology of predator-prey relationships are united in a single theory, evidence that protean displays operate by arousing neurological conflict, thereby delaying the predator's reactions and reducing the effectiveness of predatory mechanisms.
Initiation and spread of escape waves within animal groups
TLDR
A simulation model is used to demonstrate that changes in the direction and speed by a small percentage of individuals that detect the danger initiate an escape wave, and this mechanism can, through local interactions alone, produce arbitrarily large escape waves.
Personality, anti-predation behaviour and behavioural plasticity in the chaffinch Fringilla coelebs
Animal 'personalities' or behavioural syndromes can be defined as individual differences in suites of correlated behaviours. Using chaffinches Fringilla coelebs temporarily held in captivity, we
...
...