Browsing Zoology and Entomology by Issue Date
Now showing items 1-20 of 105
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Isolering en karakterisering van 'n aminopeptidase van die termiet, Trinervitermes trinervoides (Sjöstedt)
(University of the Free State, 1979-11)Abstract not available -
Die mikroanatomie en histochemie van die ganglion nodosum en vagussenuwee by Gallus domesticus
(University of the Free State, 1980-12)Afrikaans: Die mikroanatomie, topografie, normale ligmikroskopie, histochemie (insluitende fluoressensie) asook ultrastruktuur van die voël (Gallus domesticus) ganglion nodosum is ondersoek in 13 klinies gesonde wit ... -
'n Ondersoek na die rol van soöplankton in Roodeplaatdam
(University of the Free State, 1983-10)English: Roodeplaat Dam is a warm monomictic and eutrophic waterbody, which is situated in a summer rainfall area. A definite thermocline and hypolimnion are found in summer, together with a high primary production, ... -
Aspekte van die algemene biologie van Culex (culex) theileri Theobald (Diptera: Culicidae)
(University of the Free State, 1984-01)English: Since little is known of the occurence, distribution and possible vector roles of mosquitoes in the western Orange Free State, a trapping survey was undertaken to determine the species richness, relative abundance ... -
'n Vergelykende studie van die groeivermoëns van vier tilapia spesies in natuurlike en intensiewe produksie-eenhede
(University of the Free State, 1988-11)English: The growth rates of four tilapia species were compared under natural and intensive conditions. This was done to find the fish species most suitable for fish farming purposes in South West Africa. All four ... -
Studies on stalk borers of maize and sorghum in Lesotho
(University of the Free State, 1998-11)English: Investigations on various aspects of stalk borers of maize and sorghum were conducted in Lesotho during the 1995/96, 1996/97 and 1997/98 growing seasons. Aspects investigated were their distribution and relative ... -
Aspects of the behaviour and ecology of Gurney's Sugarbird Promerops Gurneyi verreaux, 1871, in Protea Woodland, South Africa
(University of the Free State, 1998-11)English: Several aspects of the ecology of Gurney's Sugarbird were studied in the Lydenburg area (Mpumalanga) and at Sterkfontein Dam Nature Reserve and Qwaqwa National Park (Free State) during the period April1980 to ... -
The bio-ecology and control of Coproica vagans and Coproica hirtula (diptera: Sphaeroceridae) in cattle feedlots
(University of the Free State, 1998-12)English: Sphaeroceridae are generally known as "lesser dung flies". These are small to medium sized dark-brown to blackish flies ranging from about 0.5 mm to 6 mm in length. They are saprophagous and occur throughout the ... -
Branchial monogenean parasites (Monogenea: Dactylogyridae) of characin fishes from the Okavango river and Delta, Botswana
(University of the Free State, 1998-12)English: The fishes of the Okavango System, Botswana, are of considerable economical and ecological importance. Recently, scientists and local fishermen have reported a dramatic decline in the fish stocks of the Okavango ... -
The ecology and ecophysiology of Marion Island house mice, Mus Musculus L.
(University of the Free State, 1999)English: This thesis presents the results of a studv of the biotic and abiotic conditions experienced by house mice on Marion Island, their morphological and reproductional adaptations to island conditions, the seasonal ... -
Aspects of the morphology and life history of Oculotrema hippopotami (Polystomatidae: Monogenea)
(University of the Free State, 1999-01)Being the only monogenean known from a warm-blooded animal and from a mammal Oculotrema hippopotami Stunkard (1924) took a major leap in monogenean evolution. After its description in 1924 various researchers rejected ... -
Sessiline ciliophorans associated with Haliotis species (Mollusca: Archaeogastropoda) from the South Coast of South Afica
(University of the Free State, 1999-06)English: Abalone, locally known as perlemoen, are herbivorous marine gastropods with all species in one genus, Haliotis Linneaus, 1758. Abalone have been commercially exploited since ancient times. Along the southern ... -
The bio-ecology of the sheep scab mite Psoroptes ovis (Acari: Psoroptidae) Hering (1835)
(University of the Free State, 1999-09)English: Sheep scab, which is caused by the mite Psoroptes ovis, has been and is still today an impediment to sheep husbandry in many countries throughout the world. Despite the economic impact, sheep scab remains a ... -
Aspekte van die ekologie van avifauna op 'n binnelandse lughawe
(University of the Free State, 1999-11)English: Owing to the world-wide increase in air traffic the number and intensity of collisions between birds and aircraft have increased accordingly. Bird strikes are not only responsible for considerable physical damage ... -
Environmental, manpower and financial analysis of locust control in South Africa
(University of the Free State, 2000-03)English: The brown locust, Locustana pardalina (Walker), has regularly recurring outbreaks in the region Karoo region of South Africa. The endemic region comprises an area of approximately 40 million hectares. The locusts ... -
Caligid fish parasites from the South and East coast of South Africa
(University of the Free State, 2000-03)English: Caligus Muller, 1785 are caligid copepods found almost exclusively on marine fish hosts. This genus is represented by more than 200 species in the oceans of the world and is the largest genus of parasitic copepods. ... -
Aspects of the bio-ecology of the biting louse, Damalinia Limbata
(University of the Free State, 2000-05)English: Biting lice are well known ecto-parasites of vertebrates. Most wild and domesticated animals have one or more louse species, living on them. Although lice are a source of irritation to the host, they are not ... -
Myxosporean parasites (Myxozoa: Myxosporea) infecting fishes in the Okavango River system, Botswana
(University of the Free State, 2000-06)English: The Class Myxosporea Butschli, 1882 comprises an enormous group of spore forming obligatory parasites that are able to infect any organ of the hosts in which they are found. Myxosporeans mostly parasitise fish ... -
Interactions between ticks and dogs in the greater Bloemfontein
(University of the Free State, 2000-11)The present study was conducted in the greater Bloemfontein area and focussed on the interaction between ticks and dogs. The sampling localities included Bloemfontein, Botshabelo and Thaba Nchu, and various sub-divisions ... -
The biology of gnathiid isopod parasites and their role as vectors of fish blood parasites in South Africa
(University of the Free State, 2000-12)English: Research on marine fish parasites has been largely neglected in South Africa. This is especially true for the temporary fish parasites of the isopod family Gnathiidae and fish blood parasites of the family ...