Loading ...
Sorry, an error occurred while loading the content.

Individual variation in testosterone and parental care in a female songbird

Expand Messages
  • james kohl
    The variations in nutrient-dependent pheromone-controlled levels of testosterone and parental care in male and in females across species of vertebrate appears
    Message 1 of 1 , Sep 25, 2013
    • 0 Attachment
      The variations in nutrient-dependent pheromone-controlled levels of testosterone and parental care
      in male and in females across species of vertebrate appears to reflect experience-driven variations in
      hormone-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 adaptive
      evolution.

      What model organism does provide scientific support for the concept of mutation-driven
      evolution? 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, 2013
      Abstract 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 researcher
      Kohl, 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.
    Your message has been successfully submitted and would be delivered to recipients shortly.