Abstract
Over the 8-year period 1980-87, moderate grazing did not affect the population dynamics of A. vesicaria, M. astrotricha and M. pyramidata. Density of A. v. declined on both grazed and ungrazed transects, but that of Maireana spp. remained almost constant. Turnover rates of A.v. were quite high for both grazed and ungrazed populations, but were extremely low for Maireana spp. Shrub size was the only population parameter significantly affected by grazing. Heights and diameters for both grazed and ungrazed populations declined during dry periods, but this decline was greater for grazed shrubs (...)
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