Accompanying CD-ROM inside back cover, includes Appendices. / Bibliography: leaves 242-266. / System requirements for accompanying CD-ROM: IBM compatible computer with Pentium processor or higher and Windows 95, 98 or NT ; 4 MB or RAM. Other software: Acrobat Adobe Reader. / xv, 266 p. : maps, charts ; 30 cm. + 1 CD-ROM (4 3/4 in.) / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis examines the effects on vegetation at selected sites in northern South Australia of excluding various herbivores over a four and a half year period and of two intense but controlled grazing pulses over a six month period followed by an 18 month recovery period in a dune-swale land system. These changes are compared with changes recorded over an 11-year period at the Olympic Dam mine site. It found that short-term changes in vegetation revealed by ordination of periodical cover, density and species richness, are attributable to the periodicity of rainfall and that, under present grazing regimes, rainfall effects override grazing effects. Differences between the effects of sheep and cattle hoof damage are worthy of further investigation, as is the impact of kangaroo grazing. These two factors may have important implications for the management of Australian rangelands. / Thesis (Ph.D.)--University of Adelaide, Dept. of Environmental Biology, 2002
| Identifer | oai:union.ndltd.org:ADTP/263044 |
| Date | January 2002 |
| Creators | Badman, Francis John |
| Source Sets | Australiasian Digital Theses Program |
| Language | en_US |
| Detected Language | English |
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