Discrete Dynamics in Nature and Society
Volume 2008 (2008), Article ID 149267, 8 pages
doi:10.1155/2008/149267
  
     
          
          Permanence of a discrete predator-prey system with Beddington-DeAngelis functional response and feedback controls
          
            Xuepeng Li
             and Wensheng Yang
          
          School of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007, China
          
          Abstract
We propose a discrete predator-prey systems with Beddington-DeAngelis functional response and feedback controls. By applying the comparison theorem of difference equation, sufficient conditions are obtained for the permanence of the system.