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Browsing by Author "Hill, Liesl"

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Adaptive assessment and management of riverine ecosystems: the Crocodile/Elands River case study

Author: Roux, DJ ; Kleynhans, CJ ; Thirion, C ; Hill, Liesl ; Engelbrecht, JS ; Deacon, AR ; Kemper, NP Date: Oct 1999 The River Health Programme (RHP) is being designed to generate information regarding the ecological state of riverine ecosystems in South Africa. An adaptive assessment and management procedure is suggested as a means of linking the monitoring ... Read more
Applying genotoxicology tools to identify environmental stressors in support of river management

Author: Oberholster, Paul J ; Hill, Liesl ; Jappie, S ; Truter, JC ; Botha, A Date: Sep 2015 Although bioassay approaches are useful for identifying chemicals of potential concern, they provide little understanding of the mechanisms of chemical toxicity. Without this understanding, it is difficult to address some of the key challenges ... Read more
Designing protected areas to conserve riverine biodiversity: Lessons from a hypothetical redesign of the Kruger National Park

Author: Roux, JR ; Nel, JL ; Ashton, PJ ; Deacon, AR ; de Moor, FC ; Hardwick, D ; Hill, Liesl ; Kleynhans, CJ ; Maree, GA ; Moolman, J ; Scholes, RJ Date: Jan 2008 The process of designing protected areas to represent all ecosystems in an area adequately is becoming increasingly sophisticated. To date freshwater aquatic ecosystems have seldom been considered in this process. How much of a difference ... Read more
Fate, transport and effects of pollutants originating from acid mine drainage in the Olifants River, South Africa

Author: Dabrowski, JM ; Dabrowski, James M ; Hill, Liesl ; Macmillan, P ; Oberholster, Paul J Date: Aug 2014 Concentrations of pollutants were measured in water, sediment and algal samples collected along a longitudinal gradient from a stretch of the Olifants River, South Africa, that receives acid mine drainage (AMD) from the Klipspruit River. The ... Read more
Focus on CSIR research in pollution waste: The South African river health programme

Author: Hill, Liesl Date: Aug 2007 In South Africa water is a scarce and precious commodity and efficient management of our water resources has a direct bearing on our standard of living and economic benefit. In the early 90s the Department of Water Affairs and Forestry initiated ... Read more
From scorecard to social learning: a reflective coassessment approach for promoting multiagency cooperation in natural resource management

Author: Roux, DJ ; Murray, K ; Nel, JL ; Hill, Liesl ; Roux, H ; Driver, A Date: 2011 The responsibility for managing and conserving freshwater ecosystems is typically shared by multiple organizations with sometimes onflicting policy mandates. However, scorecard-based approaches for measuring management effectiveness in natural ... Read more
Identifying national freshwater ecosystem priority areas

Author: Nel, JL ; Driver, A ; Strydom, W ; Maherry, A ; Petersen, C ; Hill, Liesl ; Roux, DJ Date: Oct 2012 This presentation highlights the use of systematic conservation planning to identify priority areas for managing the health of freshwater ecosystems and their associated biodiversity and ecosystem services. Read more
Impact of temporary desiccation on the mobility of nutrients and metals from sediments of Loskop Reservoir, Olifants River

Author: Dabrowski, J ; Baldwin, DS ; Dabrowski, James M ; Hill, Liesl ; Shadung, Justinus Date: Jan 2017 South Africa is prone to droughts and is heavily dependent on stored water resources. Few studies in South Africa have investigated the impact of drought on water quality when rainfall resumes and reservoir sediments are rewet. Other research ... Read more
Protecting the environment for development: Linking ecosystem structure & function and development outcomes

Author: Claassen, Marius ; Hill, Liesl Date: Jan 2017 According to SANBI, South Africa’s ecosystem diversity is a kind of infrastructure which, just like roads and railway lines, is critical to the wellbeing of the economy, communities and individual people. The National Development Plan calls ... Read more
River catchment responses to anthropogenic acidification in relationship with sewage effluent: An ecotoxicology screening application

Author: Oberholster, Paul J ; Botha, A-M ; Hill, Liesl ; Strydom, Wilma F Date: Dec 2017 Rising environmental pressures on water resources and resource quality associated with urbanisation, industrialisation, mining and agriculture are a global concern. In the current study the upper Olifants River catchment as case study was ... Read more
Water. State of the environment: Issue summary

Author: Strydom, W ; Hill, Liesl ; Hobbs, P Date: Mar 2010 The shortfalls in water available per water management area and between river systems are alleviated through the transfer of significant volumes of water. This has a direct negative impact on the ecology of these systems, with in many cases, ... Read more

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Browsing by Author "Hill, Liesl"

Browsing by Author "Hill, Liesl"

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Social Connect