Articles by Author: Craig Morris

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  1. Identifying key grazing indicators to monitor trends in the veld condition of Lambert's Bay Strandveld, South Africa

    Identifying key grazing indicators to monitor trends in the veld condition of Lambert's Bay Strandveld, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Currently, the methods used to assess the veld condition of the Lambert's Bay Strandveld along the West Coast of South Africa require that the operator knows all the plants encountered in the survey area. In this study data were collected...
  2. Effect on nursery and field performance of <em>Pinus patula</em> seedlings after inoculation with <em>Fusarium circinatum</em>

    Effect on nursery and field performance of <em>Pinus patula</em> seedlings after inoculation with <em>Fusarium circinatum</em>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Fusarium circinatum is an important fungal pathogen of Pinus species. In South Africa, it is the most significant pathogen of Pinus patula seedlings in forestry nurseries where it presents a substantial constraint to productivity and can continue to cause mortality...
  3. Grazing depletes forb species diversity in the mesic grasslands of KwaZulu-Natal, South Africa

    Grazing depletes forb species diversity in the mesic grasslands of KwaZulu-Natal, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Forbs constitute over 80% of the species richness of mesic grassland but their response to grazing is largely unknown. The influence of grazing on the forb composition, richness and diversity of two species-rich grasslands in the coastal hinterland and midlands...
  4. Determinants of the occurrence of a native encroacher species, <em>Pechuelloeschea leubnitziae</em> (wild sage), in the eastern Okavango Delta, Botswana

    Determinants of the occurrence of a native encroacher species, <em>Pechuelloeschea leubnitziae</em> (wild sage), in the eastern Okavango Delta, Botswana

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Although indigenous to southern Africa, Pechuel-loeschea leubnitziae is considered a problematic weed as it forms dense monotypic stands in the grasslands and woodlands of the Okavango Delta, Botswana, and is associated with veld degradation and a dominance of shade-tolerant, poor-quality...
  5. The nearest-plant method is robust and powerful enough for different survey teams to monitor change in mesic grassland species composition

    The nearest-plant method is robust and powerful enough for different survey teams to monitor change in mesic grassland species composition

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A long-term rangeland monitoring programme needs to employ a field survey technique that is practicable, precise, powerful enough to distinguish change, not prone to worker bias, and able to distinguish real change from operator error arising from staff turnover. These...
  6. Livestock grazing has minimal effect on the species richness and diversity of semi-arid shrubland in the Western Little Karoo, South Africa

    Livestock grazing has minimal effect on the species richness and diversity of semi-arid shrubland in the Western Little Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The Succulent Karoo, one of two arid biodiversity hotspots in the world, is known for its high plant species richness, but little is known about the influence of topography and how it mediates the potentially deleterious effects of grazing. Changes...
  7. Is the grazing tolerance of mesic decreaser and increaser grasses altered by soil nutrients and competition?

    Is the grazing tolerance of mesic decreaser and increaser grasses altered by soil nutrients and competition?

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    An ability to tolerate recurrent defoliation likely plays a role in the compositional shift from decreaser to increaser species with overgrazing of mesic grassland, but the grazing tolerance of local species has not been extensively studied. The growth response of...
  8. Historical vegetation–environment patterns for assessing the impact of climatic change in the mountains of Lesotho

    Historical vegetation–environment patterns for assessing the impact of climatic change in the mountains of Lesotho

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Climate change will probably profoundly impact the Maloti Mountains in Lesotho, which are likely to have a warmer, wetter and more CO2-enriched (eCO2) atmosphere in the future. Intensive smallstock grazing could exacerbate the effects of climate change on the mountain...