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Browsing Other Theses by Subject "Zoology"

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A taxonomic and lepidological study of the South African Heterosomata with special reference to the value of scale characters in identification and classification

Author: Marchand, Johannes Marthinus Date: 1937 Read more
Analysis of root activity patterns of two coexisting annual species (Dimorphotheca pluvialis and Senecio littoreus) using lithium as a non-radioactive tracer.

Author: Simmons, Mark T Date: 03 Nov 2017 Read more
Aspects of adaptation to the environment in the whelk Bullia, with special reference to physiological effects of fluctuating temperatures in Bullia digitalis (Dillwyn)

Author: Tatley, Fernanda Maria Palma Ribeiro da Silva Date: 1985 Read more
Birds as a dispersal agent for Acacia cyclops

Author: Glyphis, John Date: 1976 The aims of this study were to: 1) estimate the quantity of seeds taken by birds in relation to the seed production of A. cyclops; 2) determine any selective feeding preferences for A. cyclops seeds, using Cape Turtle doves (Streptopelia ... Read more
Distribution and community structure of Chaetodontidae (Perciformes) in iSimangaliso Wetland Park with the view to applying the Butterflyfish Indicator Hypothesis in this region of South Africa

Author: Noble, Talitha Gaby Date: 2014 Coral reefs are globally in a vulnerable state, because of both human impacts and environmental alterations. An understanding of coral reef ecosystems and the ability to detect changes in the reef environment early on are necessary to apply ... Read more
Does the implementation of a closed fishing season during the breeding season benefit a species? : a per-recruit-based approach using Cymbula granatina as an illustration

Author: Govender, Anesh ;Arendse, Clement Date: 2004 Closed seasons are generally implemented on the presumption that they increase reproductive output of fished populations. This is based on the assumption that the imposition of a closed season during the breeding season allows more individuals ... Read more
Ecology of the African black oystercatcher, Haematopus moquini

Author: Hockey, Philip A R Date: 1983 Read more
Estimates of numbers of White sharks (Carcharodon carcharias) in Eastern and Southern South Africa : a post-moratorium assessment

Author: Tress, Mary Elizabeth Date: 2004 A moratorium was placed on fishing for white sharks (Carcharodon carcharias) in South Africa in 1991 prior to knowing the population status of this species. A mathematical model was developed to estimate the total numbers of white sharks from ... Read more
The impact of alien invasive smallmouth bass (Micropterus dolomieu) on the indigenous fish of the Rondegat River : a quantitative assessment with implications for rehabilitation

Author: Woodford, Darragh J Date: 2005 Alien invasive fishes are a growing concern in inland water ecosystems around the world, as they are capable of causing serious damage, especially to indigenous fish populations. Mechanisms include direct predation on indigenous fish by alien ... Read more
Life cycle and host preferences in the Agapanthus borer (Neuranethes spodopterodes)

Author: Dabee, Vidushi Prema Date: 2013 The species Neuranethes spodopterodes is a pest of the Agapanthus species. The larva feeds gregariously on the leaves and rhizomes and cause extensive damage to the plant. This study shows the N.spodopterodes have 6 larval instars. The use ... Read more
Long-term changes in a small, urban estuary

Author: Viskich, Michal Date: 2014 The Diep River estuary is a small, urban estuary situated in the suburbs of Cape Town and has been subjected to long-term modifications and abuse that far exceeds that of most other estuaries around South Africa. Activities in the Diep River ... Read more
Marine alien species of South Africa : threats and opportunities

Author: Robinson, Tamara Bridgett Date: 2005 Until recently, marine bioinvasions have received little attention in South Africa, and the status of intertidal marine aliens was last assessed in 1990. I thus investigated the present distribution and status of three intertidal alien species ... Read more
Population biology and ecology of octopuses in the Southwestern Cape : astudy towards the establishment of a small-scale octopus fishery

Author: Smith, Craig Deon Date: 1999 Read more
Predation impacts on livestock in a communal area of Namaqualand, Northern Cape, South Africa

Author: Lutchminarayan, Kirtanya Date: 2014 The black-backed jackal (Canis mesomelas) and caracal (Felis caracal) commonly inhabit agricultural landscapes in southern Africa, threatening goat and sheep herds. The communal area of Paulshoek, in the Northern Cape of South Africa provided ... Read more
Prevalence and drivers of blood parasitism in African penguins (Spheniscus demersus)

Author: Naude, Vincent Norman Date: 2014 In the past decade African penguin (Spheniscus demersus) populations have experienced declining population sizes of > 60% in some instances. This has primarily been attributed to shifting prey availability and competition with regional ... Read more
Responses of raptors to habitat fragmentation : from individual responses to population susceptibility

Author: Curtis, Odette Elisabeth Date: 2005 Habitat fragmentation has different effects on species and communities, depending on a suite of life-history and population traits: some species are more vulnerable to the effects of fragmentation than others. Contrasting responses suggest ... Read more
Seedling growth and survival, in relation to seed size and phosphorus content, of six Fynbos Proteaceae species deprived of single mineral nutrients

Author: Munro, Sioban Lucille Date: 16 Nov 2017 Read more
Studies on the anatomy of some South African Mytilidae (Bivalvia) with notes on their ecology and distribution

Author: Hulley, Percy Alexander Date: 1967 [Re-OCR and works to Copy] Read more
Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina

Author: Hutchings, Kenneth Date: 2005 This research was initiated in 2001 with the overall objective of providing scientific information relevant to the sustainable management of South African Umbrina species. Previously there was confusion over the identity and distribution of ... Read more
The systematics and distribution of the fishes of the family Clinidae in South Africa

Author: Penrith, Mary-Louise Date: 1965 Read more

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