Browsing by Author "ecbaa1b6-ee96-4f94-9f16-2fd563884629"
Now showing items 1-7 of 7
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Associations between DDT and egg parameters of the House Sparrow Passer domesticus from the Thohoyandou area of South Africa
Steyn, L.; Bouwman, H.; Maina, J.N. (Elsevier, 2018)This study investigated whether the pesticide DDT (Dichlorodiphenyltrichloroethane) and its metabolites, DDE (Dichlorodiphenyldichloroethylene) and DDD (Dichlorobischlorophenylethane) were associated with adverse effects ... -
Bone density and asymmetry are not related to DDT in House Sparrows: insights from micro-focus X-ray computed tomography
Steyn, L.; Bouwman, H.; Hoffman, J.; Maina, A.W.; Maina, J.N. (Elsevier, 2018)In organisms, DDT (Dichlorodiphenyltrichloroethane) and its metabolites, DDE (Dichlorodiphenyldichloroethylene) and DDD (Dichlorobischlorophenylethane) are endocrine mimics. They can influence bone density and other bone ... -
Evidence of impacts from DDT in pelican, cormorant, stork, and egret eggs from KwaZulu-Natal, South Africa
Bouwman, H.; Van der Schyff, V.; Du Preez, M.; Dinkelmann, A.; Ikenaka, Y. (Elsevier, 2019)DDT remains in use for malaria control in South Africa. We quantified DDTs in aquatic bird eggs from the highly biodiverse northern KwaZulu-Natal, a province of South Africa where DDT has been used for more than 80 years ... -
First report of metallic elements in loggerhead and leatherback turtle eggs from the Indian Ocean
Du Preez, M.; Bouwman, H.; Nel, R. (Elsevier, 2018)Bio-monitoring of pollutants in long-lived animals such as sea turtles is an important tool in ecotoxicology. We present the first report on metallic elements in sea turtle eggs from the Indian Ocean. Eggs of the leatherback ... -
The heron that laid the golden egg: metals and metalloids in ibis, darter, cormorant, heron, and egret eggs from the Vaal River catchment, South Africa
Van der Schyff, V.; Pieters, R.; Bouwman, H. (Springer, 2016)Metal pollution issues are afforded the highest priority in developing countries. Only one previous study has addressed metals in African bird eggs. We determined the concentration of metals and metalloids in bird eggs ... -
Preliminary assessment of contaminants in the sediment and organisms of the Swartkops Estuary, South Africa
Nel, L.; Bouwman, H.; Strydom, N.A. (Elsevier, 2015)Urban estuaries are susceptible to metal and organic pollution, yet most remain understudied in South Africa with respect to the presence, concentrations and distribution of contaminants. Metal and organic chemical ... -
Protection of marine birds and turtles at St Brandon’s Rock, Indian Ocean, requires conservation of the entire atoll
Evans, S.W.; Kylin, H.; Bouwman, H.; Cole, N.; Choong Kwet Yive, N.S.; Tatayah, V. (Taylor & Francis, 2016)A survey of seabirds and turtles at St Brandon’s Rock, 400 km north of Mauritius, was undertaken in 2010. We estimated that 1 084 191 seabirds comprising seven breeding species and excluding non-breeders were present at ...