College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
Reintroduction Center of Crested Ibis Ningshan County An’kang 725000 China;
College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
College of Life Sciences Shaanxi Normal University Xi’an 710119 China;
Carrying capacity; Nipponia nippon; Population viability analysis; Reintroduction; Sex ratio; VORTEX model;