... interests The authors declare no competing or financial interests. © 2023. Published by The Company of Biologists Ltd 2023 Summary: Reflections on the development of neuroethology in the Southern Cone of South America. Native species Behavior Physiology Neurons Electric fish Crab...

... of Biologists Ltd 2022 Highlighted Article: An ex vivo analysis of the isolated heart of the electric catfish reveals no signs of any electrical immunity. Arrhythmia Atrial fibrillation Electric fish Electrocardiogram Heart The contraction of the heart is controlled by intrinsic...

... the use of agonistic electrocommunication signals during non-breeding aggression in a knifefish with extreme variation in jaw length. Androgens Chirping Electric fish Jaw morphology National Science Foundation http://dx.doi.org/10.13039/100000001 IOS 1557935 Indiana...

... in muddy waters. Sex recognition Image processing Electrotaxis Electric fish Agencia Nacional de Investigación e Innovación http://dx.doi.org/10.13039/100008725 FCE_1_2019_1_155541 Programa de Desarrollo de las Ciencias Básicas Sex recognition is a critical...

..., carried by center ON and center OFF neurons responding in opposite ways to the same stimulus at the center of their receptive fields. Here, we show in the electrosensory lateral line lobe of Gymnotiform weakly electric fish that basilar pyramidal neurons, representing ‘ON’ cells, and non-basilar pyramidal...

... or behavioral phenotypes can empower research mapping genotype to phenotype interactions. We present two case studies using electric fish and poison frogs and discuss how comparative work can teach us about evolutionary constraint and flexibility at various levels of biological organization. We also offer...

...Virginia Comas; Kim Langevin; Ana Silva; Michel Borde ABSTRACT South American weakly electric fish (order Gymnotiformes) rely on a highly conserved and relatively fixed electromotor circuit to produce species-specific electric organ discharges (EODs) and a variety of meaningful adaptive EOD...

... interests No competing interests declared. 26 10 2012 7 1 2013 © 2013. Published by The Company of Biologists Ltd 2013 animal communication signal reliability signal plasticity electric fish androgen cortisol melanocortin The sensory drive model for evolution...

... and to different degrees. Studies demonstrate that ray-finned fishes possess a very high capacity to regenerate different tissues and organs when they are adults. Among fishes that exhibit robust regenerative capacities are the neotropical electric fishes of South America (Teleostei: Gymnotiformes). Specifically...

... commonalities of sensory-related behavioral strategies across sensory systems, and evaluate what is currently known about comparable active sensing strategies in electroreception of electric fish. In this sensory system the sensors are dispersed across the animal's body and the carrier source emitting energy...

... a ventral elongated median fin. Engineered active electrosensory models inspired by electric fish allow for close-range sensing in turbid waters where other sensing modalities fail. Artificial electrosense is capable of aiding navigation, detection and discrimination of objects, and mapping the environment...

...G. Troy Smith; Rüdiger Krahe; Eric Fortune Summary 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 discharges (EODs) that function in electrolocation...

... behavior, but little is known about this relationship in fish. Here, we review studies in electric fish ( Apteronotus leptorhychus ) that link social stimulation, changes in electrocommunication behavior and adult neurogenesis in brain regions associated with electrocommunication. Compared with isolated...

.... Exp. Biol. 206 , 989 – 998 . Babineau D. , Longtin A. , Lewis J. E. ( 2006 ). Modeling the electric field of weakly electric fish . J. Exp. Biol. 209 , 3636 – 3651 . Babineau D. , Lewis J. E. , Longtin A. ( 2007 ). Spatial acuity and prey detection...

...-breeding seasons in adult male electric fish, Brachyhypopomus gauderio , exposed to three environments that differed in complexity: (1) a complex natural habitat in northern Uruguay, (2) an enriched captive environment where fish were housed socially and (3) a simple laboratory setting where fish were...

.... Recent data from gymnotiform electric fish reveal mechanisms that regulate energy allocated to sexual advertisement signals through dynamical remodeling of the excitable membranes in the electric organ. Further, males of the short-lived sexually selected species, Brachyhypopomus gauderio , trade off...

... fish or high-frequency (700–1100 Hz) electric signals that mimic conspecific fish. We examined whether A. leptorhynchus also chirps in response to artificial low-frequency electric signals and to heterospecific electric fish whose EOD contains low-frequency components. Fish chirped at rates above...

..., 1959 ; Bennett, 1971 ; Bass, 1986 ; Caputi, 1999 ; Caputi et al., 2005 ). While the EOD waveform of African electric fish (Mormyridae) is characteristic of the responses of a homogeneous population of synchronously activated electrogenic units ( Hopkins,1999 ), American electric fish (Gymnotiforms...

...Jung A. Kim; Christine Laney; Jeanne Curry; Graciela A. Unguez SUMMARY In most groups of electric fish, the current-producing cells of electric organs (EOs) derive from striated muscle fibers but retain some phenotypic characteristics of their precursor muscle cells. Given the role of the MyoD...

...Harold H. Zakon; Derrick J. Zwickl; Ying Lu; David M. Hillis SUMMARY Animal communication systems are subject to natural selection so the imprint of selection must reside in the genome of each species. Electric fish generate electric organ discharges (EODs) from a muscle-derived electric organ(EO...