@article {Pollack2007Flight,
	title = {Flight and hearing: ultrasound sensitivity differs between flight-capable and flight-incapable morphs of a wing-dimorphic cricket species},
	journal = {J Exp Biol},
	volume = {210},
	number = {18},
	year = {2007},
	month = {September},
	pages = {3160{\textendash}3164},
	abstract = {We studied frequency sensitivity of flight-capable and flight-incapable forms of the wing-dimorphic cricket Gryllus texensis, using both behavioral and neurophysiological measurements. Behavioral thresholds for negative phonotaxis in response to ultrasound stimuli are lower for long-winged (i.e. flight-capable) crickets than for short-winged (flight-incapable) individuals, whereas thresholds for positive phonotaxis in response to a calling-song model do not differ. Similarly, thresholds of the identified interneurons ON1 and AN2 differ between flight morphs for high sound frequencies but not for the frequency of calling song. Our results show that sensitivity to ultrasound is closely linked to flight ability, and thus to the risk of predation from aerially hawking bats. We suggest that sensitivity to ultrasound is one of a suite of flight-associated characteristics, the development of which may be under common hormonal regulation. 10.1242/jeb.008136},
	keywords = {bioacoustics, crickets, dimporphism, escape, flight, hearing, orthoptera},
	doi = {10.1242/jeb.008136},
	url = {http://dx.doi.org/10.1242/jeb.008136},
	author = {Pollack, Gerald S. and Martins, Ruben}
}
@article {GuerraFlight,
	title = {Flight behaviour attenuates the trade-off between flight capability and reproduction in a wing polymorphic cricket},
	journal = {Biology Letters},
	year = {Submitted},
	abstract = {Flight-dimorphic insects have been used extensively to study trade-offs between energetically costly traits. Individuals may develop and maintain structures required for flight, or alternatively they may invest in reproduction. Previous experiments have not examined whether flight itself might affect investment into reproduction. As in other Gryllus species, flight-capable individuals of the wing polymorphic cricket, Gryllus texensis, incur an apparent reproductive penalty for being able to fly, expressed as smaller ovaries in females and lower courtship propensity in males, than their flight-incapable counterparts. We find that a short bout of flight eliminates the trade-off. Two days after the flight, the ovaries of flight-capable females were comparable with those of short-winged females. Similarly, flight markedly increased the probability of courtship behaviour. Our results suggest that the impact of the flight{\textendash}reproduction trade-off described in earlier studies may have been overestimated.},
	keywords = {crickets, flight, orthoptera, polymorphism, wings},
	doi = {10.1098/rsbl.2008.0570},
	url = {http://dx.doi.org/10.1098/rsbl.2008.0570},
	author = {Guerra, Patrick A. and Pollack, Gerald S.}
}
