Individual variation in testosterone and parental care in a female songbird
- The variations in nutrient-dependent pheromone-controlled levels of testosterone and parental carein male and in females across species of vertebrate appears to reflect experience-driven variations inhormone-organized and hormone activated epistasis altered directly by olfactory/pheromonal input.It does not appear to reflect experience-driven or random mutations in the context of adaptiveevolution.What model organism does provide scientific support for the concept of mutation-drivenevolution? If not birds, why does anyone believe in such a ridiculous theory?
Individual variation in testosterone and parental care in a female songbird; the dark-eyed junco (< i> Junco hyemalis</i>)KE Cain, ED Ketterson - Hormones and Behavior, 2013Abstract When competition for sex-specific resources overlaps in time with offspring
production and care, trade-offs can occur. Steroids hormones, particularly testosterone (T),
play a crucial role in mediating such trade-offs in males, often increasing competitive ...James V. Kohl
Medical laboratory scientist (ASCP)
Independent researcherKohl, J.V. (2013) Nutrient-dependent/pheromone-controlled adaptive evolution: a model. Socioaffective Neuroscience & Psychology, 3: 20553.Kohl, J.V. (2012) Human pheromones and food odors: epigenetic influences on the socioaffective nature of evolved behaviors. Socioaffective Neuroscience & Psychology, 2: 17338.