GEOG 1010 Lecture Notes - Lecture 22: Primary Succession, Discrete Event Simulation, Seed Dispersal
Document Summary
A series of communities at one location that differ in stage of development. Chrono sequence studies: compare sites with the same abiotic characteristics that differ in disturbance history. Community change on a substrate with no of former plant community. Changes in species composition, vegetation structure & environment over time, triggered by a disturbance (= ongoing process) Community change at a site with a previous plant community & relatively intact soil. Fast relative to primary succession, but takes years-decades-centuries to reach maturity A discrete event (something that happens infrequently over a period of time) changing structure & resource availability or environment. Indirect disturbance = individuals not killed changes resource availability to individual. As long as the organism is still surviving, it is indirect Increases space & resources for survivors a. b. Climax: vegetation that exists at the end of succession ( = assumes complexity. Key ingredient that this equation doesn"t account for is: disturbances.
