Plant species dependent solely on seeds for survival or dispersal are obviously more vulnerable to any decrease in plant fecundity that occurs.
显然,仅依靠种子生存或传播的植物物种更容易受到植物繁殖力下降的影响。
2
Birds and other wildlife species play key roles in seed dispersal and thus in the natural spread of forest, shrub, and other vegetation and their associated beneficial effects of slowing soil erosion.