In particular the contingency model predicts that in some circumstances the most profitable resource should be eaten at the expense of the less profitable resources, and that this decision is based on the absolute density of the most profitable type of resource.
22.
The contingency model does not take into account the percentage of " intermediate favourability " situations vs . " extremely favourable or unfavourable situations ", hence, does not give a complete picture of the comparison between low-LPC leaders and high-LPC leaders.
23.
The original description of the model positioned the DRM as an alternative to the contingency model ( CM ) of optimal foraging and pointed out that some of the predictions of the DRM provide a better match than did the CM with observed diet choice and behavior of e . g . herbivores.
24.
Skinner put forward a " three term contingency model " which helped promote analysis of behavior based on the " Stimulus-Response-Consequence Model " in which the critical question is : " Under which circumstances or antecedent'stimuli'does the organism engage in a particular behavior or'response', which in turn produces a particular'consequence'?"
25.
During this period of widespread rejection, several dominant theories took the place of trait leadership theory, including Fiedler's ( 1967 ) contingency model, Blake and Mouton's ( 1964 ) managerial grid, Hersey and Blanchard's ( 1969 ) situational leadership model, and transformational and transactional leadership models ( Avolio, Sosik, Jung, & Berson, 2003; Bass, 1985; Podsakoff, MacKenzie, Moorman, & Fetter, 1990 ).
