often win without much physical contact. Noe,.; Sluijter,. Monnin,.; Ratnieks,. Per me non più di tanto. The manifestation of intrasexual conflict can be observed in one of two systems. A b Owens,.; Owens,. The first suggests that higher ranking individuals exert more energy and thus need higher levels of glucocorticoids to more readily mobilize glycogen stores for energy use. These sheep live in large flocks, and dominance hierarchies are often restructured each breeding season. It has previously been established that the dominance hierarchy within the species is dependent on the highest ranking female (queen) and her ability to suppress critically important reproductive hormones in male and female sub-dominants. A b c Muller,. Female behavioral strategy: dominance helps females deal with the unusually high reproductive gay a pescara ragazzi gay italiani video demands; they prevail in more social conflicts because they have more at stake in terms of fitness.