The weakly electric brown ghost knifefish (Apteronotus leptorhynchus) modulates its electric
organ discharge to produce intraspecific communication signals called “chirps”. Although …

The hormonal regulation of sex differences in electrocommunicatory behavior and brain
substance P-like immunoreactivity (SPI-ir) were examined in the weakly electric fish …

During spawning, male and female brown ghost knife fish modulate their electric organ
discharge to produce discrete courtship signals known as chirps. However, non-spawning …

Brown ghost knife fish, Apteronotus leptorhynchus, produce sexually dimorphic, androgen-
sensitive electrocommunication signals termed chirps. The androgen regulation of chirping …

Males and females often differ in morphology and behavior. However, the neuroendocrine
mechanisms that underlie shifts in the sexual dimorphism of behavior have not been …

Weakly electric fish are good model animals to study the evolution of interspecific and
sexual differences in communication signals. This is because the neural circuits producing …

Sexually dimorphic signaling is widespread among animals and can act as an honest
indicator of mate quality. Additionally, differences in signaling and morphology within a sex …

Brown ghost knife fish, Apteronotus leptorhynchus, continually emit a weakly electric
discharge that serves as a communication signal and is sensitive to sex steroids. Males …

The ghost knifefishes (family Apteronotidae) are one of the most successful and diverse
families of electric fish. Like other weakly electric fish, apteronotids produce electric organ …

Brown ghost knife fish, Apteronotus leptorhynchus, produce a continuous electric organ
discharge (EOD) that they use for communication. While interacting aggressively, males also …