Research Articles (Conservation Ecology and Entomology)
Recent Submissions
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Down, but not out : recent decline of Berg–Breede River whitefish (Barbus andrewi) in the upper Hex River, South Africa
(AOSIS Publishing, 2017)he Berg–Breede River whitefish, Barbus andrewi, an endangered Cape Floristic Region endemic, was once widespread in both the Berg and Breede River catchments. However, its distribution has been strongly reduced, apparently ... -
Adapting the Dragonfly Biotic Index to a katydid (Tettigoniidae) rapid assessment technique : case study of a biodiversity hotspot, the Cape Floristic Region, South Africa
(Pensoft Publishers, 2017)Global biodiversity faces many challenges, with the conservation of invertebrates among these. South Africa is megadiverse and has three global biodiversity hotspots. The country also employs two invertebrate-based rapid ... -
Foliar application of steinernema yirgalemense to control planococcus ficus : assessing adjuvants to improve efficacy
(South African Society for Enology and Viticulture, 2018)The vine mealybug (Planococcus ficus) is regarded as a key mealybug pest of grapevines in South Africa, with entomopathogenic nematodes (EPNs) being touted as a potential alternative to chemical control, although their ... -
Plant functional trait data and reflectance spectra for 22 palmiet wetland species
(Elsevier, 2018)We provide reflectance spectra for 22 South African palmiet wetland species collected in spring 2015 from three wetlands throughout the Cape Floristic Region. In addition, we provide summarized plant functional trait data, ... -
Potential of local entomopathogenic nematodes for control of the vine mealybug, planococcus ficus
(South African Society for Enology and Viticulture, 2018)Planococcus ficus, the vine mealybug, is the dominant mealybug pest of grapes in South Africa. To provide an alternative for chemical control, entomopathogenic nematodes (EPNs) were investigated as a biological control ... -
Woody encroachment as a social-ecological regime shift
(MDPI, 2018-06-28)African savannas are increasingly affected by woody encroachment, an increase in the density of woody plants. Woody encroachment often occurs unexpectedly, is difficult to reverse, and has significant economic, cultural ... -
Biologically based methods for pest management in agriculture under changing climates : challenges and future directions
(MDPI, 2012)The current changes in global climatic regimes present a significant societal challenge, affecting in all likelihood insect physiology, biochemistry, biogeography and population dynamics. With the increasing resistance of ... -
Potential synergies between nature-based tourism and sustainable use of marine resources : insights from dive tourism in territorial user rights for fisheries in Chile
(Public Library of Science, 2016-03)Novel solutions to conserve biodiversity whilst allowing for resource harvesting are urgently needed. In marine systems, Territorial User Rights for Fisheries (TURFs) are promoted to enable sustainable use of resources. ... -
An exploration of human well-being bundles as identifiers of ecosystem service use patterns
(Public Library of Science, 2016-10)We take a social-ecological systems perspective to investigate the linkages between ecosystem services and human well-being in South Africa. A recent paper identified different types of social-ecological systems in the ... -
Radiation biology of Eldana saccharina (Lepidoptera: Pyralidae)
(Florida Entomological Society, 2016)The availability of a great number of infertile eggs can be regarded as a benefit in a program where natural enemies are combined with the SIT because non-fertile eggs can provide additional hosts for egg parasitoids and ... -
Stable isotope markers differentiate between mass-reared and wild Lepidoptera in sterile insect technique programs
(Florida Entomological Society, 2016)In this study we identified a number of moth (Lepidoptera) species that are potential targets for the sterile insect technique (SIT), and we assessed the feasibility of using stable isotope signatures as markers to distinguish ... -
General biology of Eldana saccharina (Lepidoptera: Pyralidae) : a target for the sterile insect technique
(Florida Entomological Society, 2016)Eldana saccharina Walker (Lepidoptera: Pyralidae: Gallerinae) occurs on many graminaceous crops and several wild grasses and sedges throughout Africa. It has been reared at the South African Sugarcane Research Institute ... -
Strategies for chemical control of root-knot nematodes (meloidogyne spp.) in established vineyards
(South African Society for Enology and Viticulture, 1986)Grape-vine root growth was measured for vertical and horizontal distribution as well as seasonal growth periods. The persistance of aldicarb and fenamiphos in the soil as well as in leaves and fruit of grape-vines was ... -
Population dynamics of the root-knot nematodes meloidogyne incognita (kofoid & white) chitwood and m. javanica (treub) chitwood on grapevines in two different regions of South Africa
(South African Society for Enology and Viticulture, 1987)Two root-knot nematode species, Me/oidogyne incognita and M.javanica, were studied with regard to their seasonal population fluctuations on grapevines growing in two vastly different climatic areas. Regular observations ... -
Dual cultures of meloidogyne javanica and grapevine rootstocks on artificial media
(South African Society for Enology and Viticulture, 1990)Grapevine rootstock cultivars were cultured on more than one artificial medium. Meloidogyne javanica was inoculated on the roots of different cultivars on seven media and penetration and development were recorded. Plate ... -
Interaction between a South African population of xiphinema index and different grapevine rootstocks
(South African Society for Enology and Viticulture, 1993)Thirty-one grapevine rootstocks were used to test for reproduction, root feeding symptoms and transmission of grapevine fanleaf virus by a South African population of Xiphinema index. Grapevine fanleaf virus was transmitted ... -
Distribution of longidoridae in the viticultural regions of the Cape Province
(South African Society for Enology and Viticulture, 1994)Soil samples from five viticultural regions in the Cape Province were analysed for the presence of longidorid nematodes. Sixteen species of Xiphinema were found, the most common species being X. elongatum, X. americanum ... -
The reproduction and life cycle of a South African population of xiphinema index
(South African Society for Enology and Viticulture, 1999)The seasonal fluctuation of a South African Xiphinema index population, the influence of four hosts on the length of the life cycle and the reproductive rate with fig as host at three different temperatures, were studied. ... -
Effects of pesticides used on table grapes on the mealybug parasitoid coccidoxenoides peregrinus (timberlake) (hymenoptera : encyrtidae)
(South African Society for Enology and Viticulture, 1999)The effects of regularly used table grape insecticides and fungicides on 1-day-old adults of the parasitoid Coccidoxenoides peregrinus (Timberlake) of vine mealybug, Planococcus ficus (Signoret), were determined in the ... -
Effects of Pesticides and Fungicides Used on Grapevines on the Mealybug Predatory Beetle Nephus 'boschianus' (Coccinellidae, Scymnini)
(South African Society for Enology and Viticulture, 2001)The effects of frequently used grapevine insecticides and fungicides on adults of the predatory beetle Nephus 'boschianus' of vine mealybug, Planococcus ficus (Signoret), were determined under laboratory conditions. When ...
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