Browsing Masters Degrees (Conservation Ecology and Entomology) by Title
Now showing items 191-206 of 206
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Taxonomy and ecology of parasitic chigger mites (Acari: Trombiculidae) on small mammals in South Africa
(Stellenbosch : Stellenbosch University, 2015-03)ENGLISH ABSTRACT: Within South Africa (SA) parasites have received variable attention with limited research conducted on mites within the family Trombiculidae. They are regarded as temporary parasites with only the larval ... -
Temperature-dependent sex determination in the Nile crocodile, Crocodylus niloticus, in the Okavango River, Botswana, and the effect of global climate change
(Stellenbosch : Stellenbosch University, 2006-12)ENGLISH ABSTRACT: The Nile crocodile, Crocodylus niloticus exhibits temperature-dependent sex determination, where sex is determined by the incubation temperature of the egg prior to hatching. Laboratory incubation of ... -
Thermal limits of activity and survival in false codling moth, Thaumatotibia leucotreta (Lepidoptera: Tortricidae) : life-stage and ramping rate effects
(Stellenbosch : Stellenbosch University, 2014-12)ENGLISH ABSTRACT: Knowledge of the factors affecting thermal limits of insects are of central importance to developing control, risk assessments and post-harvest pest management strategies. To better understand these ... -
Thermal tolerance of Cydia pomonella (Lepidoptera : Tortricidae) under ecologically relevant conditions
(Stellenbosch : University of Stellenbosch, 2010-12)ENGLISH ABSTRACT: Ambient temperature plays a key role in insect-physiology, -population dynamics and ultimately -geographic distribution. Here, I investigate the survival of codling moth, Cydia pomonella (Linnaues) ... -
Towards resilience : differences in management practices between land managers adopting conventional approaches and holistic management
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: Reductionism, an approach to understanding complex systems based on reducing the system to its individual components and the interactions between these components, is the linear and rigid approach to ... -
Transitioning to organic agriculture : the changes in arthropod biodiversity and pests over time
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: The Greater Cape Floristic Region (GCFR) is a unique area known for its incredible biodiversity. It is also the largest wine-grape producing area in South Africa. However, agriculture and more specifically ... -
Trimen’s false tiger moth, Agoma trimenii (Lepidoptera: Agaristidae) : biology and potential control options
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Trimen’s false tiger moth, Agoma trimenii (Lepidoptera: Agaristidae), has developed pest status in vineyards in the Northern Cape and Limpopo (Groblersdal area) provinces of South Africa. Larvae feed on ... -
Underground storage organs of plants as a food source for Pleistocene hunter-gatherers in the southern Cape
(Stellenbosch : Stellenbosch University, 2013-12)ENGLISH ABSTRACT: The abundance and diversity of carbohydrate and protein resources in the southern Cape of South Africa may well have aided the survival of modern humans through the harsh climatic conditions of the late ... -
Understanding plant resource use by the ≠Khomani Bushmen of the southern Kalahari
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Previously, conservation activities were mainly focussed upon the establishment of protected areas that safeguarded and shielded the natural world from misuse, often resulting in the forced removal ... -
Use and conservation status of medicinal plants in the Cape Peninsula, Western Cape Province of South Africa
(Stellenbosch : University of Stellenbosch, 2009-03) -
The use of entomopathogenic nematodes to control citus mealybug, Planococcus citri (Hemiptera: Pseudococcidae) on citrus in South Africa
(Stellenbosch : Stellenbosch University, 2012-03)ENGLISH ABSTRACT: Planococcus citri (Risso) (Hemiptera: Pseudococcidae), the citrus mealybug, is a highly destructive pest of citrus in South Africa. The ability of mealybugs to develop resistance to chemicals, as well as ... -
Vegetation patterns and dynamics of Renosterveld at Agter-Groeneberg Conservancy, Western Cape, South Africa
(Stellenbosch : University of Stellenbosch, 2006-03)Swartland Shale Renosterveld is restricted to fertile fine-grained soils in the winter rainfall region of the Western Cape. Between 91% and 97% of this vegetation type is transformed, mostly due to agriculture. Remaining ... -
Vergelyking tussen die kodlingmot (Cydia pomonella) se fenologiese ontwikkeling in 'n chemies behandelde-, onbehandelde- en organiese boord in die Wes-Kaap
(Stellenbosch : Stellenbosch University, 2004-03)ENGLISH ABSTRACT: Codling moth, Cydia pomonella (L.), infested fluit were collected in a sprayed, unsprayed and an organic orchard. The time of emergence was monitored to see if there was selection for a delayed emergence ... -
Vulnerability of selected native and invasive woody species to streamflow variability in Western Cape fynbos riparian ecotones
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: Riparian ecosystems of the Mediterranean south-western Cape region are projected to experience significant decreases in streamflow due to climate change and increased demands for water associated with ... -
Wildflower farming on the Agulhas Plain : fynbos management and conservation
(Stellenbosch : University of Stellenbosch, 2010-12)ENGLISH ABSTRACT: The Agulhas Plain is a constituent of the Cape Floristic Region, internationally known as a global biodiversity hotspot. The species-rich Agulhas Plain consists mainly of fire-prone fynbos shrublands of ... -
Woody vegetation change and elephant water point use in Majete Wildlife Reserve : implications for water management strategies
(Stellenbosch : Stellenbosch University, 2013-12)ENGLISH ABSTRACT: The confinement of many elephant (Loxodonta africana) populations in southern Africa to fenced reserves has made the management of such reserves difficult as elephants are a keystone species. Elephants ...
