Publications
Tourism commodification of traditional basket weaving in the Okavango Delta, Botswana
Tourism development in Botswana's Okavango Delta has transformed traditional basket weaving from a domestic utilitarian practice into a highly sought-after commodity, driven by market demands. While this shift reflects the broader trend of cultural tourism, it poses challenges for preserving the cultural significance and authenticity of basketry. The study, conducted through semi-structured and in-depth interviews with local communities, used descriptive statistics and thematic analysis to reveal how economic pressures from tourism are reshaping traditional practices. Balancing market-driven changes with the preservation of cultural heritage emerges as a critical concern for sustainable development in the region.
An analysis of the recent fire regimes in the Angolan catchment of the Okavango Delta, Central Africa
A study analyzing fire regimes in the Angolan catchment of the Okavango Delta reveals that human presence does not significantly alter fire return intervals but increases flammable areas within miombo woodlands. Over 20 years, short bushlands and open woodlands burned every 1.9 to 2.2 years, while miombo woodlands had longer intervals (4.5 years), with 14% remaining unburnt. Late dry-season fires, peaking in August-September, are detrimental to miombo woodlands, a previously fire-free vegetation type now threatened by degradation and shifting cultivation. The research used MODIS data to assess fire frequency and seasonality across three vegetation types, highlighting the ecological risks posed by altered fire regimes to the Delta's stability.
The Okavango Delta: Fisheries in a fluctuating floodplain system
The Okavango Delta's fisheries are sustained by the dynamic interplay between seasonal flooding and drying, which drives significant variability in fish species assemblages. High floods enhance connectivity and nutrient dispersal, supporting robust aquatic ecosystems, while low floods can fragment habitats, leading to local extirpation of stranded fish. The study highlights that the periodicity, magnitude, and predictability of flows are critical for maintaining persistent fisheries production and ecosystem services. It advocates for a balanced fishing regime, inspired by traditional practices, to ensure sustainable exploitation aligned with system productivity, thereby securing food and nutritional value for marginalized communities.
A review of the limnology of the Okavango Delta, Botswana
The Okavango Delta, Botswana, exhibits naturally low solute concentrations due to minimal chemical weathering and absent anthropogenic nutrient sources. However, these solutes accumulate beneath treed-islands via evapotranspiration, offsetting the typical concentration seen in endorheic ecosystems. This unique freshwater environment supports high biodiversity despite its semi-arid setting. The study highlights critical knowledge gaps, including the role of atmospheric deposition and animal excretion as nutrient sources, the impact of hydro-period on trace element distribution in sediments and flora/fauna, and the potential bioaccumulation risks for wildlife and human health. These findings underscore the need for further research to inform effective management strategies.
Channel Migration of the Meandering River Fan: A Case Study of the Okavango Delta
A study of the Okavango Delta reveals that river channel migration in this meandering distributive fluvial system is primarily asymmetric, with distinct patterns emerging across three zones: axial, median, and distal. These zones exhibit varying sinuosity indices, curvature, along-current deflection angles, and expansion coefficients due to differences in slope, climate, and vegetation. Using satellite imagery from Google Earth and the Alaska Satellite Facility (ASF), researchers analyzed these geomorphic elements to propose a sedimentary facies model for single-source distributive fluvial systems. This work not only advances understanding of river dynamics but also offers theoretical guidance for predicting future channel behavior and studying underground reservoir morphology.
Trace Metal Enrichments in Water of the Okavango Delta (Botswana): Hydrological Consequences
Research reveals the Okavango Delta's hydrological complexity, identifying two distinct aquifers with independent behaviors. A surface fresh-water aquifer in the floodplain connects to channels, while a saline confined aquifer lies beneath islands, exhibiting enrichments in heavy metals, metalloids, and rare earth elements (REEs). These REE patterns, showing continuous enrichment from light to heavy REEs and positive Ce and Eu anomalies, fingerprint two different water sources. Sediment geochemistry remains consistent across locations, with no evidence of evaporitic deposits. The study's findings explain vegetation distribution through access to fresh water and highlight the Delta's unique hydrological architecture, differing from other islands.
Community perceptions of wildlife management strategies and subsistence poaching in the Okavango Delta, Botswana
A study on the Okavango Delta, Botswana, reveals that while Community-Based Natural Resource Management (CBNRM) was initially perceived as effective in reducing subsistence poaching, its effectiveness waned following the 2014 government hunting moratorium. Households interviewed across four villages reported that the ban led to job losses, reduced access to game meat, and increased subsistence poaching. The conflicting strategies of CBNRM and the hunting ban alienated local communities from wildlife management, exacerbating poaching issues. The research, grounded in Routine Activities Theory, highlights the complex interplay between policy implementation and community perceptions in conservation efforts.
Demographic and socio-economic factors influencing water governance in the Okavango Delta, Botswana
A significant gender imbalance exists in water collection within the Okavango Delta, Botswana, with women primarily responsible for this task. The study also found that small households consume more water than larger ones, while income levels are a key determinant of water consumption patterns. Affordability, distance to water sources, and intended use significantly influence access to water. However, age does not appear to affect water consumption. The research employed a mixed-methods approach, combining quantitative data from 455 household heads across three villages (Shakawe, Tubu, and Shorobe) with qualitative insights from nine key informants. Statistical analysis revealed these patterns, suggesting the need for an integrated water governance model to optimize water resource management in local communities.
Dust provenance and its role as a potential fertilizing agent for the Okavango Delta, Botswana
Dust from the Makgadikgadi salt pans, located 300 km away, significantly contributes to nutrient enrichment in the Okavango Delta's tree-covered islands, potentially boosting the biodiversity hotspot's productivity. Strontium and neodymium isotope analysis revealed that dust makes up 10–80% of fine-grained island soils, with high bioavailable phosphorus and iron content. This long-term nutrient input from regional dust may play a crucial role in sustaining ecosystem productivity and biogeochemical cycling in the Delta, offering insights into how such wetland systems adapt to climate change.
Gnathostomiasis Acquired by Visitors to the Okavango Delta, Botswana
A rare but significant health risk for visitors to the Okavango Delta in Botswana has been highlighted by new cases of gnathostomiasis, a parasitic infection typically acquired from consuming raw or undercooked fish. While gnathostomiasis is more commonly reported in Asia and the Americas, this study documents additional infections linked to the region, reinforcing the need for caution among tourists. The research builds on previous reports by confirming laboratory-diagnosed cases, emphasizing the potential dangers of eating untreated freshwater fish in southern Africa. This finding underscores the importance of public health awareness to prevent such zoonotic diseases in ecotourism hotspots like the Okavango Delta.
Human dimensions of human–lion conflict: a pre- and post-assessment of a lion conservation programme in the Okavango Delta, Botswana
A targeted lion conservation programme in the Okavango Delta, Botswana, significantly increased local stakeholder tolerance towards carnivores through innovative management strategies. The study found that while overall tolerance improved post-intervention, villagers remained wary of lions near their homes. Key interventions included predator-proof livestock enclosures, GPS-tracked early warning systems, depredation investigations, and educational programmes. These efforts were more effective than the existing government compensation scheme, which faced criticism for delayed and insufficient payments. The research highlights that intensive, community-focused conservation can mitigate human-carnivore conflict by balancing biological and social factors.
Where elephants roam: perceived risk, vulnerability, and adaptation in the Okavango Delta
A study on the Okavango Delta reveals that elephant movements significantly influence human vulnerability and adaptation strategies, particularly in the context of climate change. The research highlights how perceived risks from elephant encounters shape community resilience, with findings suggesting that proactive adaptation measures can mitigate these risks effectively. The study employed a mixed-methods approach, combining qualitative interviews with quantitative data analysis to assess risk perception, vulnerability, and adaptive behaviors among local communities. This work underscores the importance of integrating ecological dynamics into climate change adaptation frameworks in biodiversity hotspots like the Okavango Delta.
The effects of tourism development on rural livelihoods in the Okavango Delta, Botswana
Tourism development through Community-Based Natural Resource Management (CBNRM) has successfully improved rural livelihoods in the Okavango Delta, Botswana. A study analyzing data from Khwai, Sankoyo, and Mababe villages found that communities transitioned away from traditional activities like hunting, gathering, and farming to engage in tourism, leading to enhanced access to basic needs such as shelter, employment, income, and social services. The research, employing long-term surveys and in-depth interviews, demonstrated that CBNRM has not only boosted livelihoods but also fostered social capital, contradicting claims of failure in community development projects. This finding underscores the potential for sustainable tourism to drive rural development while conserving biodiversity.
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