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From Humble Beginnings to Pioneers of Resilient Farming in Kipkewa Village

Published 08 Jul 2025

Suman.R

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This blog on resilient farming in Kipkewa Village presents a case study from Bomet County, Kenya, highlighting smallholder-led adoption of climate-resilient and diversified farming systems.

It documents how integrated crop and livestock practices, peer learning and locally adapted approaches have strengthened food security, household incomes and community resilience to climate variability. The story demonstrates how farmer-driven innovation contributes to sustainable land management and scalable, Nature-based Solutions for rural development.

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Recognising Seaweeds: Addressing Gaps in International Biodiversity Frameworks for Global Seaweed Conservation

Published 15 Apr 2025

Tracey Hearn

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A thematic analysis of 18 international biodiversity frameworks to assess the representation of seaweeds. It explores ways to better integrate them into policies. Obstacles preventing full integration include imperfect institutional coordination, inconsistent terminology use, limited representation within biodiversity targets and the absence of legally binding agreements with enforcement mechanisms.

It recommends improvement of seaweed integration into biodiversity frameworks, thereby supporting broader marine ecosystem resilience. This will contribute to achieving Sustainable Development Goal 14 (Life below water).

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Addressing Research Gaps on the Impacts of Solid Waste and Wastewater on Water Resources in South Africa: Development and application of a method for assessing the effects of wastewater on wetland ecosystem services

Published 17 Mar 2025

Tracey Hearn

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This report provides a rapid assessment framework estimating the likelihood of wastewater effects across 15 ecosystem services and demonstrates application at nine wetland sites.

Outputs support prioritisation of management actions and inform national biodiversity assessment and policy on wastewater impacts under data‑limited conditions using probabilistic modelling.

This report has multiple appendices, which are available on request.

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Addressing Research Gaps on the Impacts of Solid Waste and Wastewater on Water Resources in South Africa: Catchment study and Ecological Modelling

Published 17 Mar 2025

Tracey Hearn

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This report compares dairy, urban, forestry and reference catchments using monitoring, biomonitoring and modelling to identify pollution sources and key drivers. Results show strong effects of wastewater treatment works, irrigation and flow conditions on water quality and biotic communities.

Ecological response models define thresholds for sensitive taxa and characterise river capacity to dilute or accumulate pollutants, supporting catchment-scale management and monitoring.

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Addressing Research Gaps on the Impacts of Solid Waste and Wastewater on Water Resources in South Africa: Overview and Guide to Reports

Published 17 Mar 2025

Tracey Hearn

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This report summarises national and catchment-scale research on pollution sources and ecological impacts, highlighting wastewater treatment, waste and emerging contaminants such as tyre wear particles and pharmaceuticals in South Africa.

Spatial analysis and modelling research projects identify pollution hotspots and link pressures to biodiversity and ecosystem service risks, supporting improved monitoring and integrated management responses.

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Comparison of two cultivation methods for domesticating wild red algal eucheumatoids for use in the seaweed industry

Published 15 Aug 2024

Tracey Hearn

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A study of Eucheumatoid seaweed cultivation methods Semporna, East Malaysia. Seaweed farming supports coastal livelihoods in Malaysia but relies on old, genetically uniform Kappaphycus clones, increasing vulnerability to pests and diseases which in turn is exacerbated by climate change.

Two cultivation methods, tie tie and basket net, were tested for wild eucheumatoids from four sites. Tie tie cultivation produced higher growth rates, while basket nets improved survival by reducing grazing and detachment. Surviving wild strains show potential as resilient new commercial cultivars.

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Initial GIS Analysis of Degradation in Lake Sofia and Lake Tseny, Madagascar

Published 29 Mar 2024

Tracey Hearn

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Research report on the sources of suspended sediment in Lake Sofia and Lake Tseny, Madagascar. The high amount of suspended sediment, in these freshwater systems is a problem as it limits the growth of healthy populations of macrophytes, invertebrates and fish.

The analysis suggests that the biggest source of this pollution is from erosion and transportation by water. Given the diffuse nature of the sediment sources across catchments, it may be necessary to adapt agricultural practices to reduce sediment influx and protect wetlands.

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