The gleaning attacks of the northern long-eared bat, Myotis septentrionalis, are relatively inaudible to moths.
The prediction that the echolocation calls of gleaners are acoustically inconspicuous to the ears of moths, leaving the moths particularly vulnerable to predation is supported, and the suggestion that gleaners gain a foraging advantage against eared prey is suggested.
Auditory Relationships to Size in Noctuid Moths: Bigger Is Better
The Sensory Coevolution of Moths and Bats
- J. Fullard
- 6 March 1998
Vertebrates, in particular, present special problems in the study of coevolution because of their rela-tively long life span and the complexities of their interactions with other organisms, both predators and competitors.
Echolocation Ecology and Flight Morphology of Insectivorous Bats (Chiroptera) in South-western Australia
Non-parametric correlations of the bats' aspect ratios and wing loadings with their echolocation call characteristics support these foraging zone classifications and propose a microhabitat separation for the bats of the Perup forest.
Auditory encoding during the last moment of a moth's life
Although the role of less sensitive A2 cell remains uncertain in the evasive flight responses of moths it may act as a trigger in eliciting sound production, a close-range anti-bat behaviour in the tiger moth, Cycnia tenera.
The tuning of moth ears
- J. Fullard
- 1 May 1988
Auditory conditions exist in certain moths that should provide a means to study the evolution of this sensory system from its mechanoreceptor origins to its degeneration in the absence of bat predation.
The influence of moth hearing on bat echolocation strategies
The ears of moths tested in Canada and Côte d'Ivoire are most sensitive to sounds between 20 and 40 kHz, and much less sensitive to sound over 65 kHz, which suggests the use of low intensity, high frequency echolocation calls may constitute a bat counter-maneuver against insects tuned to bat calls.
Sound production and hearing in the blue cracker butterfly Hamadryas feronia (Lepidoptera, nymphalidae) from Venezuela.
- J. Yack, L. D. Otero, J. W. Dawson, A. Surlykke, J. Fullard
- PhysicsJournal of Experimental Biology
- 15 December 2000
The preliminary results on the mechanism of sound production showed that males can produce clicks using only one wing, thus contradicting a previous hypothesis that it is a percussive mechanism.
The adaptive function of tiger moth clicks against echolocating bats: an experimental and synthetic approach
- J. Ratcliffe, J. Fullard
- Environmental Science, BiologyJournal of Experimental Biology
- 15 December 2005
These findings support the hypotheses that the clicks of arctiid moths are both an active defence (through echolocation disruption) and a reliable indicator of chemical defence against aerial-hawking bats.
Acoustic and behavioural analyses of the sounds produced by some species of Nearctic Arctiidae (Lepidoptera)
The acoustic parameters of the arctiids surveyed revealed extremely high levels of variability in the sounds and these were predominantly ultrasonic and relatively faint compared with other insect sounds.