@article {1764,
	title = {Spatial distribution, resource utilisation and intraspecific competition in the dung beetle Aphodius ater},
	journal = {Oecologia},
	volume = {116},
	year = {1998},
	month = {Apr},
	pages = {136-142},
	keywords = {aggregation, density dependence, dung beetle, egg-laying behaviour, Scarabaeidae},
	author = {Hirschberger, Petra}
}
@article {1765,
	title = {Larval population density affects female weight and fecundity in the dung beetle Aphodius ater},
	journal = {Ecological Entomology},
	volume = {24},
	year = {1999},
	pages = {316-322},
	keywords = {competition, fitness, lifetime fecundity, oviposition, Scarabaeidae},
	author = {Hirschberger, Petra}
}
@article {1766,
	title = {Stridulation in Aphodius dung beetles: behavioral context and intraspecific variability of song patterns in Aphodius ater (Scarabaeidae)},
	journal = {Journal of Insect Behavior},
	volume = {14},
	number = {1},
	year = {2001},
	pages = {69-88},
	abstract = {Aphodius dung beetles produce substrate vibrations by means of an abdomino- alary stridulatory organ. Applying a method that allows the recording of Aphodius vibrations under natural conditions in a small amount of dung, the stridulatory behavior of Aphodius ater was investigated. Male A. ater are acoustically active, while females rarely stridulate. Males have a complex song, which consists of a series of different patterns that are displayed in a specific order over a considerable time when a female is encountered in the dung. Different populations show the same stridulatory patterns but individ- ual variability is high and males display songs with differing complexity. It is hypothesized that females use the information within the song in the context of mate choice.},
	keywords = {communication, geographic variability, mate choice, mating system, substrate vibration},
	author = {Hirschberger, Petra}
}
@article {1847,
	title = {Stridulation in Aphodius dung beetles: songs and morphology of stridulatory organs in Noth American Aphodius species (Scarabaeidae)},
	journal = {Journal of Natural History},
	volume = {39},
	number = {1},
	year = {2005},
	pages = {91-99},
	abstract = {The acousticbehaviouroffourAphodiusdungbeetlespeciesfromthePacificNorthwestoftheUSA wasinvestigated.MaleAphodiusproducesubstratevibrationswhentheymeetaconspecificfemalein a dung pat. The temporal structure of the substrate vibrations andthe stridulatory organs are described. The vibrations are species-specific songs that are emitted during courtship. The stridulatoryorganisoftheabdomino-larytypeintheinvestigatedspecies.Morphologicaldifferences withregardtothedetailedstructurearepresent. },
	keywords = {aphodius, Dung beetles, Scarabaeidae, stridulation},
	isbn = {0022-2933 print1464-5262},
	author = {Kasper, Julia and Hirschberger, Petra}
}
