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Full-Text Articles in Neuroscience and Neurobiology
Contextual Modulation Of Social And Endocrine Correlates Of Fitness: Insights From The Life History Of A Sex Changing Fish, Devaleena S. Pradhan
Contextual Modulation Of Social And Endocrine Correlates Of Fitness: Insights From The Life History Of A Sex Changing Fish, Devaleena S. Pradhan
Neuroscience Institute Faculty Publications
Steroid hormones are critical regulators of reproductive life history, and the steroid sensitive traits (morphology, behavior, physiology) associated with particular life history stages can have substantial fitness consequences for an organism. Hormones, behavior and fitness are reciprocally associated and can be used in an integrative fashion to understand how the environment impacts organismal function. To address the fitness component, we highlight the importance of using reliable proxies of reproductive success when studying proximate regulation of reproductive phenotypes. To understand the mechanisms by which the endocrine system regulates phenotype, we discuss the use of particular endocrine proxies and the need for …
Stress And Serial Adult Metamorphosis: Multiple Roles For The Stress Axis In Socially Regulated Sex Change, Tessa Solomon-Lane, Erica J. Crespi, Matthew S. Grober
Stress And Serial Adult Metamorphosis: Multiple Roles For The Stress Axis In Socially Regulated Sex Change, Tessa Solomon-Lane, Erica J. Crespi, Matthew S. Grober
Neuroscience Institute Faculty Publications
Socially regulated sex change in teleost fishes is a striking example of social status information regulating biological function in the service of reproductive success. The establishment of social dominance in sex changing species is translated into a cascade of changes in behavior, physiology, neuroendocrine function, and morphology that transforms a female into a male, or vice versa. The hypothalamic-pituitary-interrenal axis (HPI, homologous to HP-adrenal axis in mammals and birds) has been hypothesized to play a mechanistic role linking status to sex change. The HPA/I axis responds to environmental stressors by integrating relevant external and internal cues and coordinating biological responses …