@article {412,
	title = {The electric organ discharges of the Petrocephalus species (Teleostei: Mormyridae) of the Upper Volta System},
	journal = {Journal of Fish Biology},
	volume = {74},
	number = {1},
	year = {2009},
	note = {395IDTimes Cited:0Cited References Count:40},
	month = {Jan},
	pages = {54-76},
	abstract = {<p>In this study, a first comparative investigation of all four species of Petrocephalus (P. bovei, P. bane, P. soudanensis and P. cf. pallidomaculatus) present in the Upper Volta system and their electric organ discharges (EOD) was conducted. It was found that P. bovei was the most widespread (in terms of habitat use), but in several places P. bovei, P. soudanensis and P. cf. pallidomaculatus occurred syntopically. All species emitted a triphasic signal, and with very few exceptions, the Petrocephalus species of the Upper Volta system could clearly be identified on the basis of their EOD waveforms. The most obvious differences between species in EOD waveforms were in amplitude of the last phase, total duration and fast Fourier transformation (FFT) peak frequency. No sexual dimorphism was present in the EOD of any species although external dimorphism, i.e. an indentation at the base of the anal fin of mature males, was common. The EOD waveform diversity in the Upper Volta principally resembled that found in four sympatric Petrocephalus species from the OgoouE system (Gabon) and might play a role in species recognition and speciation processes.</p>
},
	keywords = {active electrolocation, central-africa, communication, eod waveform, fishes mormyridae, gnathonemus-petersii mormyridae, osteoglossomorpha, pendjari, pollimyrus-isidori, recognition, sex-differences, speciation, variability, water conductivity, weakly electric fish, west africa},
	isbn = {0022-1112},
	url = {<Go to ISI>://000262516900004},
	author = {Moritz, T. and Engelmann, J. and Linsenmair, K. E. and G. von der Emde}
}
@article {891,
	title = {Electrifying love: electric fish use species-specific discharge for mate recognition},
	journal = {Biology Letters},
	volume = {520927419392041142915996351451455587020220191},
	year = {2009},
	month = {04/2009},
	pages = {225 - 228},
	abstract = {<p>A unique evolutionary specialization of African weakly electric fish (Mormyridae) is their ability to produce and perceive electric signals. Mormyrids use their electric organs discharge (EOD) for electrolocation and electrocommunication. Here we discuss the adaptive significance of the EOD in foraging (electric prey detec- tion) in light of recent results demonstrating that mormyrid fish mate assortatively according to EOD waveform characteristics (electric mate choice). Therefore the EOD as a single trait pleio- tropically combines natural divergent selection and reproductive isolation. Consequently we postulate the EOD as a \&ldquo;magic trait\&rdquo; promoting the diversification of African weakly electric fish.</p>
},
	issn = {0179-1613},
	doi = {10.1098/rsbl.2008.0566},
	author = {Philine G.D. Feulner and Plath, M. and Engelmann, J. and Frank Kirschbaum and Ralph Tiedemann}
}
