@article {Shaw2000Acoustic,
	title = {Acoustic preference functions and song variability in the Hawaiian cricket Laupala cerasina},
	journal = {Proceedings of the Royal Society of London. Series B: Biological Sciences},
	volume = {267},
	number = {1443},
	year = {2000},
	month = {March},
	pages = {577{\textendash}584},
	abstract = {10.1098/rspb.2000.1040 Female preference functions for different sexual traits can differ significantly, from {\textquoteright}unimodal{\textquoteright} to {\textquoteright}open ended{\textquoteright}. Through the study of acoustic communication in anurans, several studies have reported an association between static (stereotyped) traits versus dynamic (variable) traits and preference function shape (unimodal versus open ended, respectively). Observing a similar pattern in a phylogenetically independent group would suggest that deterministic forces have caused a relationship between signal variability and preference function shape in acoustic signalling systems. We examined this phenomenon in crickets, another animal characterized by intersexual acoustic communication. We measured the within{\textendash}male variability for three acoustic features of the male calling song in and the corresponding shape of the female preference function for each of these features. We offer support for the generalization that open{\textendash}ended preference functions correspond to relatively dynamic courtship traits and unimodal preference functions correspond to relatively static courtship traits. We discuss the evolutionary significance of these findings in the context of the natural history of the species radiation.},
	keywords = {bioacoustics, crickets, orthoptera, songs},
	doi = {10.1098/rspb.2000.1040},
	url = {http://dx.doi.org/10.1098/rspb.2000.1040},
	author = {Shaw, Kerry L. and Herlihy, Daniel P.}
}
@article {Walker1974Character,
	title = {Character Displacement and Acoustic Insects},
	journal = {Amer. Zool.},
	volume = {14},
	number = {4},
	year = {1974},
	month = {January},
	pages = {1137{\textendash}1150},
	abstract = {Crickets, katydids, grasshoppers, and cicadas should be ideal for illustrating character displacement. Their species-specific calling songs are of direct importance to reproductive success, and species with similar songs and overlapping ranges should develop greater differences in their songs in areas of sympatry. Although many pairs of species have suitably similar songs and overlapping ranges and the data concerning songs are extensive for crickets and katydids, no convincing example of character displacement has been found in acoustic insects. Lack of such examples can be attributed to false premises, to divergence completed in allopatry. to elimination of geographical variation in song by gene flow between the zone of sympatry and the zones of allopatry, and to the scanty sample that has been intensively studied. 10.1093/icb/14.4.1137},
	keywords = {bioacoustics, character-displacement, insects, songs},
	doi = {10.1093/icb/14.4.1137},
	url = {http://dx.doi.org/10.1093/icb/14.4.1137},
	author = {Walker, Thomas J.}
}
@article {Kirschel2009Character,
	title = {Character displacement of song and morphology in African tinkerbirds},
	journal = {Proceedings of the National Academy of Sciences},
	volume = {106},
	number = {20},
	year = {2009},
	month = {May},
	pages = {8256{\textendash}8261},
	abstract = {10.1073/pnas.0810124106 Divergence in acoustic signals between populations of animals can lead to species recognition failure, reproductive isolation, and speciation. Character displacement may facilitate coexistence of species in natural communities, yet evidence for character displacement in acoustic signals is scant. Here, we find evidence of character displacement in song as well as body size and bill size of 2 related African tinkerbirds. Playback experiments indicate that related species{\textquoteright} songs are perceived differently in sympatry than in allopatry. We suggest character displacement occurs in phenotypic traits facilitating species recognition, which has important implications for understanding the processes that lead to speciation and diversification. Because many of the sites where the 2 species coexist are areas where pristine rainforest has been degraded, results also suggest that anthropogenic pressures resulting from deforestation may be a contributing cause of character displacement in these species.},
	keywords = {bioacoustics, birds, character-displacement, evolution, songs},
	doi = {10.1073/pnas.0810124106},
	url = {http://dx.doi.org/10.1073/pnas.0810124106},
	author = {Kirschel, Alexander N. G. and Blumstein, Daniel T. and Smith, Thomas B.}
}
@article {MoradianRelationships,
	title = {Relationships between body size and sound-producing structures in crickets: do large males have large harps?},
	journal = {Invertebrate Biology},
	volume = {127},
	number = {4},
	year = {Submitted},
	pages = {444{\textendash}451},
	publisher = {Blackwell Publishing},
	keywords = {bioacoustics, crickets, harps, orthoptera, relationships, songs},
	issn = {1077-8306},
	doi = {10.1111/j.1744-7410.2008.00142.x},
	url = {http://dx.doi.org/10.1111/j.1744-7410.2008.00142.x},
	author = {Moradian, Nima R. and Walker, Sean E.}
}
@article {Selin2007Wavelets,
	title = {Wavelets in Recognition of Bird Sounds},
	journal = {EURASIP Journal on Advances in Signal Processing},
	volume = {2007},
	year = {2007},
	pages = {1{\textendash}10},
	keywords = {asr, bioacoustics, birds, songs},
	issn = {1687-6172},
	doi = {10.1155/2007/51806},
	url = {http://dx.doi.org/10.1155/2007/51806},
	author = {Selin, Arja and Turunen, Jari and Tanttu, Juha T.}
}
@article {Gillooly2010Energetic,
	title = {The energetic basis of acoustic communication},
	journal = {Proceedings of the Royal Society B: Biological Sciences},
	year = {2010},
	month = {January},
	abstract = {10.1098/rspb.2009.2134 Animals produce a tremendous diversity of sounds for communication to perform life{\textquoteright}s basic functions, from courtship and parental care to defence and foraging. Explaining this diversity in sound production is important for understanding the ecology, evolution and behaviour of species. Here, we present a theory of acoustic communication that shows that much of the heterogeneity in animal vocal signals can be explained based on the energetic constraints of sound production. The models presented here yield quantitative predictions on key features of acoustic signals, including the frequency, power and duration of signals. Predictions are supported with data from nearly 500 diverse species (e.g. insects, fishes, reptiles, amphibians, birds and mammals). These results indicate that, for all species, acoustic communication is primarily controlled by individual metabolism such that call features vary predictably with body size and temperature. These results also provide insights regarding the common energetic and neuromuscular constraints on sound production, and the ecological and evolutionary consequences of producing these sounds.},
	keywords = {bioacoustics, review, songs, sounds},
	doi = {10.1098/rspb.2009.2134},
	url = {http://dx.doi.org/10.1098/rspb.2009.2134},
	author = {Gillooly, James F. and Ophir, Alexander G.}
}
