*proposed that disturbance is a prevelent feature of nature that significantly influences the diversity of communities.
* questioned the assumption of equilibrium conditions made by most competition-based models of diversity.
* he proposed taht high diversity is a consuqunec of continually changing conditions, not of competitive accommodation at equilibrium and proposed that intermediated disturbance hypothesis, which predicts that intermediate levels of disturbance promote higher levels of diversity
*suggested that both high and low level of disturbance would lead to reduce diversity
* reasoned taht if disturbance is frequent ans intense the commuit will consit of those few species able to colonize and complete their live cycles between frequent disturbances
* predicted that diversity eill decline if disturbance are infrequent and of low intensity
* in the absence of significant disturbance, teh community is eventually limited to the spescies that are most effective competitors, effective either because they are the most effiecient at using limited resources or the most effective at interference competition
* suggested taht at intermediate levels of disturbance there is sufficient time between distrubance for a wide varirty of species to colonize but not enough time to allow competitve exclusion