Publications
Remote Sensing Applications in Miombo and the Coastal Mosaic Forests of Tanzania: Ecological Conditions and Anthropogenic Disturbances in the Selous-Niassa Wildlife Corridor, Tanzania
A critical analysis of the Selous-Niassa Wildlife Corridor reveals stable vegetation conditions from 2001 to 2012, followed by improvements from 2013 to 2020, despite fluctuating rainfall and fire incidences. Remote sensing technology was pivotal in monitoring these changes, providing non-intrusive data collection across vast, inaccessible areas. The study underscores the importance of conservation strategies that prioritize maintaining ecological connectivity while addressing human-wildlife conflicts and regulating land use practices to safeguard the corridor's integrity. This research offers actionable insights for balancing conservation goals with community well-being in the Ruvuma landscape.
Stepping into colonial footsteps – selling wilderness in the Selous Game Reserve, Tanzania
A critical analysis of trophy hunting tourism in the Selous Game Reserve, Tanzania, reveals that advertising by six major agencies perpetuates colonial imaginaries. These narratives depict Africa as uninhabited wilderness, reinforcing racialized, gendered, and class-based hierarchies while erasing local environmental history and community realities. The study finds that such representations sustain colonial power dynamics, framing African landscapes as wild nature in need of Western intervention and evoking fantasies of a colonial lifestyle among tourists. This research underscores the urgent need to deconstruct these narratives in wildlife tourism to foster more equitable, post/decolonial perspectives.
African wild dog population status in the Selous-Nyerere landscape, southern Tanzania: Insights from camera trap surveys
A critical update on the status of African wild dogs (Lycaon pictus) in the Selous-Nyerere landscape, southern Tanzania, reveals one of Africa's most important remaining populations. Using camera trap surveys across 4,674 km² from 2020 to 2022, researchers identified 222 wild dogs and estimated a population density of 2.14 ± 0.45 adult and yearling individuals per 100 km² in Selous Game Reserve (GR). This study highlights the potential of camera traps for monitoring endangered carnivores but also notes limitations for this species. While not directly addressing mortality, it underscores the need for long-term conservation efforts to protect this vital stronghold against identified threats.
Butterflies’ Diversity Indicates Habitat Quality in Magombera Nature Forest Reserve, Tanzania
Butterfly diversity in Magombera Nature Forest Reserve (MNFR), Tanzania, serves as a sensitive indicator of habitat quality and forest recovery. The study recorded 155 butterfly species across six families, with closed forests exhibiting the highest species richness (105) and diversity (H' = 4.06), while grasslands showed the least (46 species, H' = 3.27). These findings suggest that MNFR is recovering from past disturbances following its upgrade to a nature reserve in 2018. The variation in vegetation composition appears to influence butterfly diversity, with closed forests and open woodlands supporting richer biodiversity than grasslands or riparian areas. The study emphasizes the importance of ongoing management efforts by Tanzania Forest Services Agency (TFS) to maintain ecological balance within MNFR and between Udzungwa Mountain National Park and Selous Game Reserve.
Challenges of Tourism Business Partnerships in Wildlife Management Areas around Selous Game Reserve in Tanzania
Tourism business partnerships in Tanzania's Wildlife Management Areas (WMAs), including those around the Selous Game Reserve, often exclude local communities from benefiting from wildlife resources, leading to significant challenges. A study involving 133 household heads and 74 key informants revealed that current structures undermine community participation, despite tourism's potential for mutual benefit. The research highlights the need for policy integration of community-based business strategies to foster sustainable tourism development while ensuring equitable access to benefits. This approach could mitigate stakeholder conflicts and enhance wildlife management effectiveness in Tanzanian WMAs.
Do Wildlife Management Areas Help to Mitigate Negative Human-Wildlife Interactions? A Case of Eastern Bufferzone of Selous Game Reserve, Tanzania
Wildlife Management Areas (WMAs) in the eastern buffer zone of Tanzania's Selous Game Reserve, while successful in reducing illegal wildlife offtake and habitat destruction, paradoxically increased negative human-wildlife interactions. Following WMA establishment, crop damage surged by 28.6%, livestock predation by 40.6%, and human attacks by 79.2%. The study, applying Citizen Science Theory (CST), analyzed data from 240 households, revealing that while WMAs expanded wildlife habitats and boosted populations, they also heightened conflicts with local communities. Annual crop damage averaged 7.2±0.1 acres near WMAs, compared to 0.6±0.1 acres farther away, with lions, leopards, hyenas, crocodiles, elephants, buffalo, and hippopotamuses identified as primary culprits. The research underscores the need for enhanced wildlife control measures, such as local monitoring, deterrents, public education, and predator-proof enclosures, to mitigate these interactions effectively.
Human-Wildlife Interactions in the Selous: Causes, Impacts, and Management Approaches in Rufiji District
A surge in wildlife within the Selous Game Reserve (now Nyerere National Park) has led to significant agricultural damage, injuries, and insecurity for local communities due to conservation regulations, infrastructure development, population growth, and wildlife conservation efforts. The study highlights that decision-making regarding conflict management is primarily driven by governmental agencies and investors, with limited influence from Wildlife Management Area actors. It also identifies adverse effects such as reduced access to natural resources, lack of compensating mechanisms, and changes in regulations. The research recommends more inclusive conservation strategies that address the needs of both local communities and wildlife.
Is Convivial Conservation A Solution for Human-Wildlife Interactions Around Protected Areas?
Convivial conservation emerges as a promising framework to address human-wildlife conflicts around protected areas, offering a more equitable and sustainable approach compared to traditional methods. This study highlights that current strategies often distort livelihoods, increase conflicts, and destabilize local resource institutions without adequate compensation, exacerbating poverty and illegal activities. By integrating political ecology perspectives with convivial conservation principles—focusing on equity, organizational transformation, and environmental justice—the research proposes innovative solutions for balancing biodiversity protection with human development. The analysis is grounded in empirical data from the Selous Game Reserve in Tanzania, gathered through interviews, surveys, group discussions, and direct observations, providing a robust foundation for policy recommendations.
Spatially explicit camera trap‐based lion monitoring in Tanzania's Selous–Nyerere landscape
Lion population densities in Tanzania's Selous–Nyerere landscape vary significantly, ranging from as low as 0.33 lions per 100 km² in the dry eastern Miguruwe sector of Selous Game Reserve to a high of 6.27 individuals per 100 km² in the prey-rich lakes area of Matambwe sector within Nyerere National Park. This variation is primarily driven by prey availability, which is closely tied to miombo woodland productivity. However, anthropogenic pressures, particularly near boundaries, appear to be negatively impacting lion densities. The study employed spatially explicit capture-recapture (SECR) modeling using camera trap data from seven sites across the landscape, demonstrating the effectiveness of this method for monitoring lion populations in remote areas. This approach not only provides insights into lion population dynamics but also offers a foundation for sustainable conservation strategies and evidence-based management decisions.
A Case Against Trophy Hunting Through Utilitarianism Lens: Evidence from Selous Game Reserve, Tanzania
Trophy hunting, while financially viable with net benefits of $310,438 USD in Tanzania's Selous Game Reserve (SGR), fails to align with utilitarian ethics by neglecting conservation and community development priorities. A mixed-methods study involving 108 respondents revealed that despite positive economic outcomes, the practice does not maximize overall benefit due to its negative social and ecological impacts. The research recommends exploring sustainable alternatives like ecotourism for wildlife conservation and income generation.
Mechanisms for compliance with the Convention Concerning the Protection of the World Cultural and Natural Heritage (the case of the Selous Game Reserve in Tanzania)
This study identifies growing contradictions between the World Heritage Committee and the International Union for Conservation of Nature (IUCN) regarding balancing nature conservation with economic development, particularly in the Selous Game Reserve. It reveals that political influences significantly shape decision-making processes within the World Heritage protection system, often undermining ecological objectives. The research highlights critical threats to the Reserve's ecological state, including extractive industry projects and hydroelectric dam constructions, and emphasizes the role of international 'soft law' in regulating subsoil use. The study predicts potential consequences such as weakened conservation restrictions, strengthened regional initiatives over universal ones, and a reduction in the status of listed properties on the World Heritage List. It also proposes strategies to address these challenges using soft international law mechanisms.
New record of strawberry leopard (Panthera pardus) in Selous Game Reserve, Tanzania
A rare strawberry leopard, characterized by red or brown spots instead of the typical black, has been documented for the first time on the African continent outside South Africa. This unique phenotype, likely resulting from a mutation in the TYRP1 gene, was identified in the Selous Game Reserve, Tanzania, during camera trap surveys covering over 4600 km² between 2020 and 2022. Among 373 leopards recorded, only one female exhibited this distinctive coloration, representing a 0.3% occurrence rate. The discovery underscores the genetic diversity within leopard populations and expands the known distribution of this rare morph in Africa.
Cheetahs in Tanzania's Selous–Nyerere ecosystem: lack of evidence for current persistence, and reflections on historical status
A recent study challenges the assumption that cheetahs persist in Tanzania's Selous–Nyerere ecosystem. Despite its significance as potential cheetah habitat, surveys conducted between 2020 and 2022—using sign-based (spoor) methods and camera traps across Selous Game Reserve and Nyerere National Park—yielded no evidence of current cheetah presence. Additionally, interviews with tourism operators and park management provided no reports of recent sightings. The findings suggest that the ecosystem should not be considered part of the contemporary cheetah range, raising questions about whether it ever hosted a resident population or was merely a peripheral area for dispersers from other regions.
Effects of prescribed burning on rodents in an East African woodland ecosystem
Prescribed burning in miombo woodlands, such as those found in the Selous Game Reserve, Tanzania, significantly influences rodent species diversity and abundance. While some species like Acomys ngurui and Mastomys natalensis show no significant difference in abundance between burnt and unburnt areas, burnt sites generally exhibit higher species diversity than unburnt ones, both during wet and dry seasons. The study, conducted over two years with 14,112 trap nights, captured six rodent species and two shrew species, revealing that prescribed burning affects specific demographic characteristics of these small mammals in complex ways. This highlights the need for careful management to mitigate potential negative impacts on ecosystem dynamics.
Flight Behavioural Responses for African Ungulates across Species and Vegetation Covers in a Trophy Hunting Ecosystem: A Case Study from Selous Game Reserve, Tanzania
Trophy hunting significantly alters the flight behavior of African ungulates, with variations observed across species, vegetation cover, and group size. A study in Tanzania's Selous Game Reserve found that zebras, elands, wildebeests, and sable antelopes exhibited higher vigilance, while group dynamics influenced flight responses differently: wildebeests showed decreased flight initiation distance (FID) with larger groups, whereas buffaloes, elands, hartebeests, and zebras displayed increased FID. Vegetation cover also played a critical role in shaping these responses. The findings underscore the need for regulatory adjustments to minimize biological disturbances during hunting, such as setting minimum approach distances tailored to vegetation types.
Human-Wildlife Interactions and Community Livelihoods
Human-wildlife interactions (HWIs) around the Selous Game Reserve (SGR) are predominantly characterized by hostility, driven by climate-induced changes in water and pasture availability. A study involving 312 households and 11 key informants from four villages—Mvuha, Mbwade, Milengwelengwe, and Kisaki Gomero—revealed that temperature and rainfall variations significantly influence these dynamics. Spatial analysis further demonstrated land use changes, with bushlands expanding at the expense of woodlands due to increased human interference. While villages designated as Wildlife Management Areas (WMAs) expressed concerns about employment and benefit distribution, non-WMA villages emphasized the need for policy review, advocating for a more holistic conservation approach. The research highlights the complex interplay between community livelihoods and wildlife ecology, underscoring the urgent need for conflict mitigation strategies.
The Nature of German Imperialism
Tanzania's renowned wildlife preserves, including the Selous Game Reserve, trace their origins to German colonial rule. This study reveals that the shift from exploitation to preservation of wildlife, particularly elephants and ivory, was a product of German imperial policies in East Africa before World War I. It highlights how colonial governance interacted with the natural world, contributing to the global emergence of conservationist sensibilities around 1900. The research analyzes historical records and colonial policies to demonstrate how indigenous Africans were increasingly excluded from these conservation efforts.
We are what we eat, plus some per mill: Using stable isotopes to estimate diet composition in Gypsvultures over space and time
Stable isotope analysis reveals that Gyps vultures in the Serengeti National Park and Selous Game Reserve primarily feed on grazing herbivores, with those in the park consuming over 87% grazer-based diets. The study used δ13C, δ15N, and δ34S isotopes from vulture feathers and blood to assess dietary composition, finding limited movement between the two sites despite baseline differences in plant sulfur isotopes (δ34S). Bayesian modeling suggested consistent herbivore consumption over ~159 days before sampling. While δ34S variation indicated spatial foraging differences, precise location matching remains uncertain. The research underscores the importance of repeated sampling and Bayesian techniques for dietary studies, though more data is needed to fully understand vulture ecology and conservation implications.
Endangered African Wild Dogs: Ecological Disturbances, Habitat Fragmentations, and Ecosystem Collapse in Sub-Saharan Africa.
African wild dogs (Lycaon pictus), once widespread across 39 African countries, now occupy just 7% of their former range and are critically endangered with fewer than 1400 mature individuals globally. Their populations have drastically declined due to ecological disturbances, habitat fragmentation, and ecosystem collapse in Sub-Saharan Africa. The largest remaining populations are found in northern Botswana, the Selous Game Reserve (Tanzania), and Kruger National Park (South Africa). This study synthesizes global archival data, including published literature, books, and articles, to quantify these declines and highlight the urgent conservation challenges facing this species.
Drivers of land cover changes and impacts on conservation of protected area buffer zones, Tanzania
A significant decline in forest and wooded grassland cover, particularly between 1998 and 2015, was observed in buffer zones adjacent to Tanzania's Selous Game Reserve. This study highlights rapid conversion of natural landscapes to bare land, settlements, and cultivation, driven by factors such as charcoal burning, shifting cultivation, logging, and population growth—especially pronounced in Masaki ward near Dar-es-salaam. The findings underscore threats to the reserve's buffer zones, rural livelihoods, and biodiversity conservation, emphasizing the need for sustainable resource management policies to mitigate these impacts.
Faecal Glucocorticoids Metabolite Response in Giraffes (Giraffa camelopardalis tippelskirchi) in Relation to Protected Area Management Objectives in Tanzania
Giraffe females exhibit significantly higher faecal glucocorticoid metabolite (FGM) levels than males, indicating greater stress responses. Group size and age also influence FGM concentrations, while protection type and poaching risk do not show significant effects. The study used non-invasive faecal sampling to assess stress in 272 giraffe groups across the Serengeti National Park and Selous Game Reserve, highlighting the need for conservation strategies that minimize stressful events, particularly for vulnerable young animals.
In Danger
Tanzania's Selous Game Reserve faces severe conservation threats due to the potential impacts of the Rufiji Hydropower Project. An independent technical review of the project’s Strategic Environmental Assessment (SEA) has raised significant concerns about its environmental consequences. The findings underscore the urgent need for reevaluation and mitigation measures to protect this ecologically vital region, which supports critical wildlife populations and biodiversity. The study highlights the importance of rigorous environmental assessments in large-scale infrastructure projects to ensure sustainable development without compromising heritage values.
Insights of Legal and illegal wildlife hunting in Selous and Rungwa Game Reserves in the South-East and Central Tanzania
A 15-year analysis of trophy hunting and poaching in Tanzania's Selous and Rungwa Game Reserves reveals no evidence linking regulated hunting to increased wildlife poaching, except for African elephants. The study found that elephant poaching rates exceeded legal hunting levels due to strict CITES quotas and IUCN restrictions, challenging the argument that trophy hunting drives illegal wildlife trade. Instead, it suggests that conservation efforts should prioritize anti-poaching measures while adhering to legal hunting regulations. The research examined data on six species, including lions, buffalo, zebras, hippos, and kudu, using long-term records to assess the impact of regulated hunting on poaching dynamics.
Socioeconomic Factors Influencing Local Community Perceptions Towards Lion Conservation: A Case of the Selous Game Reserve, Tanzania
A overwhelming majority (86%) of local communities near the Selous Game Reserve, Tanzania, hold negative perceptions towards lions, primarily driven by socioeconomic factors. Key influences include education level, occupation, livestock numbers and management, water source availability, and proximity to protected areas. The study, based on surveys and interviews with 384 households, highlights that higher education correlates with more positive attitudes (p=0.0016), while livestock-related challenges and distance from the reserve exacerbate negative sentiment (p<0.05). Compensation for lion attack victims is recommended to mitigate hostility towards the species.
Will the Sustainability of Lion Tourist Hunting be Certain Amidst Noncompliance to Conservation Legal Frameworks?
Nearly half of the licensed hunting practitioners in Tanzania's Selous Game Reserve (SGR) do not comply with the International Union for Conservation of Nature (IUCN) sustainability principles for trophy hunting, despite these principles being a legal framework. The study, conducted between August and October 2018 across five administrative sectors, found that familiarity with IUCN principles and longer working experience significantly predict compliance. Researchers used the theory of planned behavior to analyze predictors of compliance and the unmatched count technique (UCT) to estimate unsustainable practices, employing semi-structured interviews, key informant interviews, field observations, and documentary reviews. The findings highlight critical gaps in awareness and enforcement, urging stronger emphasis on education and monitoring to ensure sustainable hunting practices.
Lion Densities in Selous Game Reserve, Tanzania
Lion densities in the Selous Game Reserve, Tanzania, were found to be significantly lower than previously estimated, with an average of 1.2 lions per 100 km², highlighting the need for urgent conservation efforts. This study utilized camera trapping and lion scent marking surveys across different habitats within the reserve to assess population density and distribution. The findings underscore the importance of monitoring lion populations in large, protected areas to inform conservation strategies and ensure the long-term survival of this iconic species.
Application of Remote Sensing and GIS for Assessing Land Cover Resources Variability in the Selous Game Reserve, Tanzania
Between 2000 and 2010, the Selous Game Reserve in Tanzania experienced a significant decline in vegetation density, as revealed by normalized difference vegetation index (NDVI) analysis. The study, which used Landsat TM and ETM+ images to map land cover changes, found that dense vegetation (NDVI ≥ 0.72) shrank from covering 46.5% of the reserve in 2000 to just 8.04% by 2010. This decline highlights the importance of integrating remote sensing and GIS for monitoring land cover variability, detecting habitat fragmentation, and informing wildlife conservation strategies.
Hotspot elephant-poaching areas in the Eastern Selous Game Reserve, Tanzania
Elephant poaching hotspots in the Eastern Selous Game Reserve (ESGR), Tanzania, are concentrated along its edges, particularly during the wet season. This pattern is linked to local involvement driven by economic deprivation. Researchers analyzed elephant mortality data from 2008–2013, revealing higher poaching incidences on reserve peripheries due to proximity to human settlements lacking alternative livelihoods. The study underscores the need for targeted conservation strategies, including economic empowerment, strengthened law enforcement, and community-based anti-poaching initiatives, to mitigate illegal ivory trade in this UNESCO World Heritage Site.
The role of anthrax in the population biology of wildebeest in the Selous Game Reserve
Anthrax, though responsible for the death of approximately 10% of wildebeest in the Selous Game Reserve, maintains a balanced relationship with its host population. The pathogen appears to target animals that are already disadvantaged, potentially benefiting the overall health and stability of the wildebeest population. To reduce anthrax occurrences, reserve management could focus on reducing the number of older wildebeest beyond calves, which would also stabilize age distribution, improve habitat quality, and decrease the prevalence of animals in poor condition. This study compares the anthrax-wildebeest dynamic with evolutionary host-pathogen models using demographic data and disease characteristics.
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