We used cohort analyses and population cohort matrices to model a wild turkey (Meleagris gallopavo silvestris) population under perturbed (i.e., man-induced flooding on 3-yr intervals) and unperturbed (i.e., non-flood) conditions. The net reproductive rate$(R_{o})$of a cohort in which reproduction in the hatching-year (HY) age class was perturbed by flooding dropped to 0.460 from Ro= 1.383 for unperturbed cohorts. The Roof cohorts in which only after-hatching-year (AHY) age classes were exposed to flooding was >1.0. Cohort analyses demonstrated the importance to the population of nesting by HY hens and the significant effects on cohort reproductive potential of exposing the HY age class to flooding. Evaluation of population cohort matrices also suggested that flooding on a 3-year interval precludes sufficient reproduction to maintain this wild turkey population.