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- W1560958061 abstract "Sexually-selected communication signals can be used by competing males to settle contests without incurring the costs of fighting. The ability to dynamically regulate the signal in a context-dependent manner can further minimize the costs of male aggressive interactions. Such is the case in the gymnotiform fish Brachyhypopomus gauderio, which, by coupling its electric organ discharge (EOD) waveform to endocrine systems with circadian, seasonal, and behavioral drivers, can regulate its signal to derive the greatest reproductive benefit. My dissertation research examined the functional role of the EOD plasticity observed in male B. gauderio and the physiological mechanisms that regulate the enhanced male EOD. To evaluate whether social competition drives the EOD changes observed during male-male interactions, I manipulated the number of males in breeding groups to create conditions that exemplified low and high competition and measured their EOD and steroid hormone levels. My results showed that social competition drives the enhancement of the EOD amplitude of male B. gauderio. In addition, changes in the EOD of males due to changes in their social environment were paralleled by changes in the levels of androgens and cortisol. I also examined the relationship between body size asymmetry, EOD waveform parameters, and aggressive physical behaviors during male-male interactions in B. gauderio, in order to understand more fully the role of EOD waveforms as reliable signals. While body size was the best determinant of dominance in male B. gauderio, EOD amplitude reliably predicted body condition, a composite of length and weight, for fish in good body condition. To further characterize the mechanisms underlying the relationship between male-male interactions and EOD plasticity, I identified the expression of the serotonin receptor 1A, a key player in the regulation of aggressive behavior, in the brains of B. gauderio. I also identified putative regulatory regions in this receptor in B. gauderio and other teleost fish, highlighting the presence of additional plasticity. In conclusion, male-male competition seems to be a strong selective driver in the evolution of the male EOD plasticity in B. gauderio via the regulatory control of steroid hormones and the serotonergic system." @default.
- W1560958061 created "2016-06-24" @default.
- W1560958061 creator A5044841307 @default.
- W1560958061 date "2017-11-13" @default.
- W1560958061 modified "2023-10-18" @default.
- W1560958061 title "The Effect of male-male competition and its Underlying Regulatory Mechanisms on the Electric Signal of the Gymnotiform fish <em>Brachyhypopomus gauderio</em>" @default.
- W1560958061 cites W100307374 @default.
- W1560958061 cites W1480003601 @default.
- W1560958061 cites W1507538191 @default.
- W1560958061 cites W1509129298 @default.
- W1560958061 cites W1515226261 @default.
- W1560958061 cites W1522592213 @default.
- W1560958061 cites W1566509610 @default.
- W1560958061 cites W1927487353 @default.
- W1560958061 cites W1960351623 @default.
- W1560958061 cites W1967330633 @default.
- W1560958061 cites W1967392796 @default.
- W1560958061 cites W1973687585 @default.
- W1560958061 cites W1973908913 @default.
- W1560958061 cites W1976700979 @default.
- W1560958061 cites W1982561710 @default.
- W1560958061 cites W1983688537 @default.
- W1560958061 cites W1985203092 @default.
- W1560958061 cites W1987263275 @default.
- W1560958061 cites W1987447371 @default.
- W1560958061 cites W1988111959 @default.
- W1560958061 cites W1989790153 @default.
- W1560958061 cites W1991955634 @default.
- W1560958061 cites W1995558655 @default.
- W1560958061 cites W2007489643 @default.
- W1560958061 cites W2011383036 @default.
- W1560958061 cites W2017891404 @default.
- W1560958061 cites W2018089320 @default.
- W1560958061 cites W2028491447 @default.
- W1560958061 cites W2030966943 @default.
- W1560958061 cites W2031401716 @default.
- W1560958061 cites W2032035515 @default.
- W1560958061 cites W2032231928 @default.
- W1560958061 cites W2032952594 @default.
- W1560958061 cites W2036118187 @default.
- W1560958061 cites W2038163496 @default.
- W1560958061 cites W2038202625 @default.
- W1560958061 cites W2049174331 @default.
- W1560958061 cites W2055204402 @default.
- W1560958061 cites W2060487112 @default.
- W1560958061 cites W2064618263 @default.
- W1560958061 cites W2070290419 @default.
- W1560958061 cites W2070587735 @default.
- W1560958061 cites W2071706956 @default.
- W1560958061 cites W2072974606 @default.
- W1560958061 cites W2073029554 @default.
- W1560958061 cites W2073646532 @default.
- W1560958061 cites W2075512031 @default.
- W1560958061 cites W2075620625 @default.
- W1560958061 cites W2079234104 @default.
- W1560958061 cites W2080428439 @default.
- W1560958061 cites W2082597159 @default.
- W1560958061 cites W2082638240 @default.
- W1560958061 cites W2083835125 @default.
- W1560958061 cites W2084045796 @default.
- W1560958061 cites W2085006035 @default.
- W1560958061 cites W2086606893 @default.
- W1560958061 cites W2087659682 @default.
- W1560958061 cites W2089261006 @default.
- W1560958061 cites W2092357224 @default.
- W1560958061 cites W2092756373 @default.
- W1560958061 cites W2097706568 @default.
- W1560958061 cites W2100438223 @default.
- W1560958061 cites W2106328570 @default.
- W1560958061 cites W2108472039 @default.
- W1560958061 cites W2112622162 @default.
- W1560958061 cites W2115289164 @default.
- W1560958061 cites W2117532073 @default.
- W1560958061 cites W2119841955 @default.
- W1560958061 cites W2120538193 @default.
- W1560958061 cites W2124010245 @default.
- W1560958061 cites W2126465905 @default.
- W1560958061 cites W2127445170 @default.
- W1560958061 cites W2127453654 @default.
- W1560958061 cites W2132539548 @default.
- W1560958061 cites W2135389766 @default.
- W1560958061 cites W2142779425 @default.
- W1560958061 cites W2150460060 @default.
- W1560958061 cites W2152674887 @default.
- W1560958061 cites W2155856114 @default.
- W1560958061 cites W2158461019 @default.
- W1560958061 cites W2160819440 @default.
- W1560958061 cites W2162084661 @default.
- W1560958061 cites W2248229481 @default.
- W1560958061 cites W2273752326 @default.
- W1560958061 cites W2319854166 @default.
- W1560958061 cites W2373071019 @default.
- W1560958061 cites W2409492879 @default.
- W1560958061 cites W2417787345 @default.
- W1560958061 cites W2603790972 @default.
- W1560958061 cites W578545475 @default.
- W1560958061 doi "https://doi.org/10.25148/etd.fi09120802" @default.
- W1560958061 hasPublicationYear "2017" @default.
- W1560958061 type Work @default.
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