Results 41 to 50 of about 2,868 (235)

Theoretical analysis of pre-receptor image conditioning in weakly electric fish. [PDF]

open access: yesPLoS Computational Biology, 2005
Electroreceptive fish detect nearby objects by processing the information contained in the pattern of electric currents through the skin. The distribution of local transepidermal voltage or current density on the sensory surface of the fish's skin is the
Adriana Migliaro   +2 more
doaj   +2 more sources

Magic trait Electric Organ Discharge (EOD) Dual function of electric signals promotes speciation in African weakly electric fish

open access: yesCommunicative & Integrative Biology, 2009
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
Philine G.D. Feulner   +4 more
doaj   +1 more source

Predation and Crypsis in the Evolution of Electric Signaling in Weakly Electric Fishes

open access: yesFrontiers in Ecology and Evolution, 2019
Eavesdropping by electroreceptive predators poses a conflict for weakly electric fish, which depend on their Electric Organ Discharge (EOD) signals both for navigation and communication in the dark.
Philip K. Stoddard   +3 more
doaj   +1 more source

Male-mediated species recognition among African weakly electric fishes [PDF]

open access: yesRoyal Society Open Science, 2018
Effective communication among sympatric species is often instrumental for behavioural isolation, where the failure to successfully discriminate between potential mates could lead to less fit hybrid offspring.
Rebecca Nagel   +5 more
doaj   +1 more source

Automatic realistic real time stimulation/recording in weakly electric fish: long time behavior characterization in freely swimming fish and stimuli discrimination. [PDF]

open access: yesPLoS ONE, 2014
Weakly electric fish are unique model systems in neuroethology, that allow experimentalists to non-invasively, access, central nervous system generated spatio-temporal electric patterns of pulses with roles in at least 2 complex and incompletely ...
Caroline G Forlim, Reynaldo D Pinto
doaj   +1 more source

Perception and coding of envelopes in weakly electric fishes [PDF]

open access: yesJournal of Experimental Biology, 2013
SummaryNatural sensory stimuli have a rich spatiotemporal structure and can often be characterized as a high frequency signal that is independently modulated at lower frequencies. This lower frequency modulation is known as the envelope. Envelopes are commonly found in a variety of sensory signals, such as contrast modulations of visual stimuli and ...
Sarah A, Stamper   +2 more
openaire   +2 more sources

A Spark in the Dark: Uncovering Natural Activity Patterns of Mormyrid Weakly Electric Fish

open access: yesFrontiers in Ecology and Evolution, 2022
To understand animal ecology, observation of wildlife in the natural habitat is essential, but particularly challenging in the underwater realm. Weakly electric fishes provide an excellent opportunity to overcome some of these challenges because they ...
Stefan Mucha   +3 more
doaj   +1 more source

A Mathematical Model for Electrolocation in Weakly Electric Fishes

open access: yesBIO Web of Conferences, 2016
Weakly electric fishes usually live in the rivers of Africa and South America. They are able to orient themselves thanks to an electric sense, called electrolocation, that consist of emitting an electric field and sensing it at the surface of their skin.
Boulier Thomas
doaj   +1 more source

Stimulus-induced up states in the dorsal pallium of a weakly electric fish

open access: yesJournal of Neurophysiology, 2015
S Benjamin Elliott, Leonard Maler
exaly   +2 more sources

Comparable ages for the independent origins of electrogenesis in African and South American weakly electric fishes. [PDF]

open access: yesPLoS ONE, 2012
One of the most remarkable examples of convergent evolution among vertebrates is illustrated by the independent origins of an active electric sense in South American and African weakly electric fishes, the Gymnotiformes and Mormyroidea, respectively ...
Sébastien Lavoué   +5 more
doaj   +1 more source

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