A5005055176- Freshwater macroinvertebrate diversity and ecology
- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Water Quality and Pollution Assessment
- Water resources management and optimization
- Land Use and Ecosystem Services
- Sustainability and Climate Change Governance
- Microplastics and Plastic Pollution
- Pharmaceutical and Antibiotic Environmental Impacts
- Environmental Toxicology and Ecotoxicology
- Water Governance and Infrastructure
- Environmental Conservation and Management
- Species Distribution and Climate Change
- Salmonella and Campylobacter epidemiology
- Mine drainage and remediation techniques
- Environmental DNA in Biodiversity Studies
- Climate change impacts on agriculture
- Fecal contamination and water quality
- Ecology and Vegetation Dynamics Studies
- Viral gastroenteritis research and epidemiology
- Pesticide and Herbicide Environmental Studies
- Conservation, Biodiversity, and Resource Management
- Hydrology and Watershed Management Studies
- Hydropower, Displacement, Environmental Impact
- Water-Energy-Food Nexus Studies
Rhodes University
2016-2025
Makerere University
2024
University of Cape Coast
2023
The biological assessment of rivers i.e., their through use aquatic assemblages, integrates the effects multiple-stressors on these systems over time and is essential to evaluate ecosystem condition establish recovery measures. It has been undertaken in many countries since 1990s, but not globally. And where national or multi-national monitoring networks have gathered large amounts data, poor water body classifications necessarily resulted rehabilitation rivers. Thus, here we aimed identify...
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals mobilisation substantial resources. While reasons are varied, investments in both research conservation lag far behind those terrestrial marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five areas, an effort to support informed stewardship biodiversity. The proposed agenda aims advance globally as critical step improving...
Rivers suffer from multiple stressors acting simultaneously on their biota, but the consequences are poorly quantified at global scale. We evaluated biological condition of rivers globally, including largest proportion countries Global South published to date. gathered macroinvertebrate- and fish-based assessments 72,275 37,676 sites, respectively, 64 study regions across six continents 45 nations. Because were based differing methods, different systems consolidated into a 3-class system:...
Path-breaking transformative change is needed in human-environment relations to move towards more sustainable development trajectories at local, national and global scales. Crises may trigger learning the short long term. However, particular, a short-term response crises also be reactive, strengthening established unsustainable practices further perpetuating vulnerability inequality rather than supporting path. To understand nature crisis context of sustainability transformations, this paper...
Abstract A multimetric approach, using 21 metrics representing five categories — abundance, composition, richness, diversity and biotic indices was applied to investigate the impacts of water quality deterioration on macro-invertebrate communities in Swartkops River. Macroinvertebrates were sampled seasonally between August 2009 July 2010 South African Scoring System version 5 (SASS5) protocol at one reference site upstream Uitenhage three downstream sites. Assessment macroinvertebrates...
Abstract Urban pollution of riverine ecosystem is a serious concern in the Niger Delta region Nigeria. No biomonitoring tool exists for routine monitoring effects urban on systems within region. Therefore, aim this study was to develop and apply macroinvertebrate‐based multimetric index assessing water quality condition impacted river Macroinvertebrate physicochemical samples were collected from 11 stations eight systems. Based variables, categorized into three impact categories namely least...
Wolff, M. G., J. Cockburn, C. De Wet, Bezerra, T. Weaver, A. Finca, Vos, Ralekhetla, N. Libala, Q. B. Mkabile, O. Odume, and G. Palmer. 2019. Exploring expanding transdisciplinary research for sustainable just natural resource management. Ecology Society 24(4):14. https://doi.org/10.5751/ES-11077-240414
The transformations required to achieve the Sustainable Development Goals across African continent demand new ways of mobilising, weaving together, and applying knowledge. Research, policymaking, planning, action must be effectively inter-linked address complex sustainability challenges different needs interests societal actors. Transdisciplinarity (TD) – co-production knowledge disciplines with non-academic actors offers a promising, holistic approach foster such transformations. Yet,...
Diseases affecting livestock can have ripple effects on surrounding ecosystems, especially by contaminating water sources. Their occurrence poses significant public health issues, in areas such as the Eastern Cape province South Africa, susceptible to climatic variations and where people animals often share sources, increasing risk of transmission waterborne zoonoses. Waterborne zoonoses are infectious diseases caused zoonotic pathogens, including bacteria, viruses, protozoa, parasitic...
Abstract Elevated instream fine sediment is one of the most important water quality stressors affecting both structure and function aquatic ecosystems. This study evaluates whether a predictable pattern trait distribution Ephemeroptera, Plecoptera, Trichoptera (EPT) can be observed along gradient stress in eight selected sites Tsitsa River its tributaries. The were classified into four site groups according to their loads. One‐way analysis variance was used test differences relative...
Crop models are useful tools to evaluate the effects of agricultural management on ecosystem services. However, before they can be applied with confidence, it is important calibrate and validate crop in region interest. In this study, Environmental Policy Integrated Climate (EPIC) model was evaluated for its potential simulate maize yield using limited data from field trials two cultivars. Two independent fields at Cradock Research Farm were used, one calibration validation. Before...
Agricultural activities impact riverine ecosystem structure, function, and processes. In the Afrotropical regions, research on agricultural effects macroinvertebrate trait distribution is sparse. this study, we investigated spatial temporal changes in community structure of traits along an disturbance gradient River system. Physicochemical variables were sampled alongside macroinvertebrates at eight sites dry (winter spring) wet (summer autumn) periods 2018–2019. We grouped into four...