Initiation of Escape Behavior by the Texas Horned Lizard (Phrynosoma cornutum)

@inproceedings{Cooper2010InitiationOE,
  title={Initiation of Escape Behavior by the Texas Horned Lizard (Phrynosoma cornutum)},
  author={William E. Jr. Cooper and Wade C. Sherbrooke},
  year={2010}
}
Abstract Horned lizards are difficult to detect because of their cryptic coloration and behavior, but often flee from approaching predators and use specialized behavioral, morphological, and physiological defenses at close quarters. Escape theory predicts that flight initiation distance (predator–prey distance when escape begins) increases as predation risk increases. We predicted that, despite relying on crypsis, Texas horned lizards (Phrynosoma cornutum) would have greater flight initiation… 
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References

SHOWING 1-10 OF 36 REFERENCES
Strong Artifactual Effect of Starting Distance on Flight Initiation Distance in the Actively Foraging Lizard Aspidoscelis exsanguis
TLDR
Although FID and SD are unrelated in A. exsanguis, SD and the related alert distance can provide valuable insights into risk assessment in other taxa having escape movements distinct from other movements.
Effective Crypsis and Its Maintenance by Immobility in Craugastor Frogs
TLDR
Observations that almost all frogs that jumped reestablished crypsis after a single jump by becoming immobile, and some burrowed into leaf litter upon landing, concealing the head and part of the body, suggest that survivorship may be higher for individuals that do not attempt to escape.
Antipredator Responses by Texas Horned Lizards to Two Snake Taxa with Different Foraging and Subjugation Strategies
TLDR
For slow-running, broad-bodied Texas Horned Lizards, running is an appropriate escape response to a nonpursuing venomous predator, whereas the nonrunning body-conformation/orientation change is anappropriate defensive response, advertising size and spiny defenses, to a rapid-pursuit snake that must grasp prey with its jaws to effect capture and subjugation.
Sex and social costs of escaping in the striped plateau lizard Sceloporus virgatus
TLDR
This field experiment shows that male striped plateau lizards given the opportunity to court or perform aggressive behavior permit closer approach before fleeing, but females do not, and confirms the prediction of optimal escape theory that flight initiation decreases as cost of escaping increases.
TRADEOFFS BETWEEN PREDATION RISK AND FEEDING IN A LIZARD, THE BROAD-HEADED SKINK (EUMECES LATICEPS)
TLDR
Lizards more frequently carried large than small crickets to refuges before eating them, reducing duration of exposure, and reduced handling time when closer to the predator, indicating modification of feeding behavior in response to predation risk.
Magnitude of food reward affects escape behavior and acceptable risk in Balearic lizards, Podarcis lilfordi
TLDR
By adapting models of flight initiation distance and time between entry into refuge and emergence, this work predicts effects of predation risk and cost on distance fled and time to return to a source of benefit after fleeing.
Effect of Risk on Aspects of Escape Behavior by a Lizard, Holbrookia propinqua, in Relation to Optimal Escape Theory
TLDR
Lizards were more likely to enter refuge and ran faster when approached rapidly, verifying the prediction that predation risk affects escape decisions by the lizards for escape variables not included in optimal escape theory.
Behavioral (Predator-Prey) Interactions of Captive Grasshopper Mice (Onychomys torridus) and Horned Lizards (Phrynosoma cornutum and P. modestum)
TLDR
Horned lizard antipredator behaviors involved displays that increase apparent size, aggressive attacks that intimidate, and the absence of flight responses that might elicit Onychomys attack behavior, which resulted in Lizard mortality being mainly attributable to attacks involving chewing of the cranium around the orbit.
Effects of predator behavior and proximity on risk assessment by Columbian black-tailed deer
TLDR
It is suggested that risk assessment is affected the by the predator's behavior, the state of awareness of the prey, and the distance at which they detect the predator.
Universal Optimization of Flight Initiation Distance and Habitat-Driven Variation in Escape Tactics in a Namibian Lizard Assemblage
TLDR
In an assemblage of lizards in northwestern Namibia, experiments to test predictions of escape theory for three risk factors in representatives of three families and observed escape tactics in additional species indicate that flight initiation distance and refuge entry by lizards conform to theoretical predictions.
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