About the Authors
- Jeanne Tarrant
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* E-mail: jeannetarrant@ymail.com
Affiliation Unit for Environmental Sciences and Management, North-West University, Potchefstroom, North West Province, South Africa
- Dirk Cilliers
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Affiliation Unit for Environmental Sciences and Management, North-West University, Potchefstroom, North West Province, South Africa
- Louis H. du Preez
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Affiliation Unit for Environmental Sciences and Management, North-West University, Potchefstroom, North West Province, South Africa
- Ché Weldon
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Affiliation Unit for Environmental Sciences and Management, North-West University, Potchefstroom, North West Province, South Africa
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: JT LdP CW. Performed the experiments: JT DC. Analyzed the data: JT DC CW. Contributed reagents/materials/analysis tools: JT DC CW. Wrote the paper: JT CW. Commented on manuscript: DC LdP.