Publications
Human-Hamadryas baboon conflict in and around Simien Mountains National Park (SMNP), Ethiopia
Human-Hamadryas baboon conflicts in Simien Mountains National Park (SMNP), Ethiopia, are significantly driven by agricultural expansion and human settlement encroachment near baboon habitats. A study found that 72.7% of surveyed households reported losses of both crops and livestock, with beans and peas being the most frequently raided crops, while sheep and goats were primarily affected livestock. Conflict intensity was highest within 2 km of baboon sleeping cliffs (P ≤ 0.001), particularly affecting middle-aged livestock. Farmers mitigated conflicts through guarding and sowing less vulnerable crops (40.9%). The study highlights the urgent need for habitat management and community-based mitigation to ensure sustainable coexistence between humans and Hamadryas baboons, as both populations face threats from human disturbance and population pressure.
Population Size, Structure and Activity Pattern of Gelada Baboon (Theropithecus gelada) at Simien Mountains National Park, Simiengondar Zone, Ethiopia
A study on the gelada baboon (Theropithecus gelada) in Simien Mountains National Park, Ethiopia, reveals critical insights into its population size, structure, and activity patterns. The research highlights that gelada baboons exhibit unique social structures and activity rhythms adapted to their high-altitude habitat, with significant variations observed across different troop compositions. Using a combination of direct observations and demographic data analysis, the study provides valuable baseline information for conservation efforts in this UNESCO World Heritage Site. These findings are crucial for understanding the ecological dynamics of gelada baboons, which are endemic to the Ethiopian Highlands.
Role of environmental variables on plant community formation in simien mountains national park afromontane vegetation
Simien Mountains National Park harbors rich Afromontane biodiversity with substantial endemism and ecological heterogeneity. The study identified four distinct plant communities along an elevational gradient of 2244–3150 m a.s.l., characterized by high species diversity (Shannon index: 4.03–4.50) and moderate compositional turnover. Altitude emerged as the strongest environmental driver shaping vegetation patterns, followed by soil properties, slope, and pH. Using 139 stratified systematic sampling plots, researchers recorded 354 vascular plant taxa, with herbs dominating (61.86%) and Asteraceae exhibiting the highest species richness (16%). Notably, 12.2% of species were endemic, including seven restricted to the park, underscoring its conservation significance. This quantitative baseline offers critical insights for site-specific conservation planning and monitoring.
Comparative Analysis of Conservation Strategies and Outcomes in Simen Mountains National Park (SMNP), Ethiopia and Qianjiangyuan National Park (QNP), China
A comparative analysis of conservation strategies in Simien Mountains National Park (SMNP), Ethiopia, and Qianjiangyuan National Park (QNP), China, reveals that QNP's tiered administrative framework with strong provincial leadership and stakeholder collaboration has led to effective land-use regulations, zoning, and reforestation efforts. These measures have maintained over 81.7% of the park as forest, enhanced watershed protection and carbon storage, and fostered a flourishing ecotourism industry while balancing local livelihoods and sustainability. SMNP's community-led conservation practices have also shown significant growth in tourism revenue and beneficiary numbers, with projections indicating continued increase. Both parks have seen notable recoveries in endangered species populations, such as Ethiopian wolves and Walia ibex in SMNP, highlighting the success of integrated management techniques.
Early-life infection dynamics and genomic diversity of adenoviruses in a wild primate (Theropithecus gelada)
Research on geladas (Theropithecus gelada) in Simien National Park, Ethiopia, reveals that simian adenovirus (SAdV) infections peak in infants under six months old, contrary to expectations of higher transmission risk during close-contact play behaviors. The study identified ten coding-complete SAdV genomes, including four new species, by analyzing longitudinal fecal samples from known individuals. It found that SAdV likelihood and richness decline with age, with very few adults infected, suggesting early-life exposure may confer lifelong immunity. Higher minimum temperatures were weakly but significantly associated with lower SAdV richness. This challenges the assumption of human-like AdV dynamics in primates, highlighting potential differences in transmission pathways and immune responses.
Intestivirid Acquisition Increases Across Infancy in a Wild Primate Population
Research on geladas (Theropithecus gelada) in Ethiopia's Simien National Park reveals that intestivirid viruses, which infect Bacteroidales bacteria in the gut, significantly increase during infancy, peaking around weaning at 18 months. These viruses, closely related to human crAssphages, show a strong link with seasonal rainfall and dietary shifts, suggesting their role in shaping microbiome dynamics during critical developmental stages. The study analyzed fecal samples from infants and mothers, identifying six unique intestivirid variants and highlighting the interaction between viral acquisition, environmental factors, and host diet.
Population Dynamics and Feeding Behavior of Gelada (Theropithecus gelada) in Ethiopia
Gelada baboons (Theropithecus gelada), Ethiopia's only endemic primate, face significant population decline despite their adaptability to Afroalpine and sub-Afroalpine ecosystems. A synthesis of 13 studies reveals a total Ethiopian population of approximately 29,969 individuals, with 62.9% concentrated in the Simien Mountains National Park. The species exhibits complex social structures and a diverse diet, varying by habitat type, but is threatened by multiple factors. While most populations (76.32%) reside in protected areas, 23.68% inhabit unprotected regions, underscoring the need for integrated conservation strategies to ensure long-term survival.
Population size, habitat preference, and feeding ecology of the common bushbuck (Tragelaphus scriptus decula) in Simien Mountains National Park, Ethiopia
A stable population of common bushbucks (Tragelaphus scriptus decula) was observed in Simien Mountains National Park, Ethiopia, with no significant seasonal variation between wet and dry seasons. The study, conducted from August 2018 to March 2019, documented a total of 99 and 102 individuals during the wet and dry seasons, respectively, with adults constituting 64.5% of the population. Feeding ecology analysis revealed a preference for 37 plant species, predominantly herbs (62%), followed by shrubs (16.2%) and trees (13.5%). Cyanotis barbata and Alchmila pedata were the most consumed species, while Gladiolus abyssinicus and Pterocephalus frutescens were least preferred. The study also found a significant difference in plant part consumption between seasons, with young leaves and shoots being the primary diet. Recommendations include long-term habitat and population monitoring to inform broader ecosystem management and biodiversity protection.
Severe decline of the only remaining population of walia ibex in Ethiopia: proposed actions and recommended recategorization as Critically Endangered
A severe decline in the population of the walia ibex, endemic to Ethiopia's Simien Mountains and a national symbol, has been documented between 2015 and 2024. The population dropped from 865 individuals in 2015 to just 306 in 2024, with poaching identified as the primary cause by over 70% of interviewed stakeholders, exacerbated by regional instability during the COVID-19 crisis and the 2021–2022 war. Researchers recommend recategorizing the species from 'Vulnerable' to 'Critically Endangered' on the IUCN Red List due to its rapid population loss and limited range, aiming to galvanize urgent conservation efforts. A proposed action plan includes engaging local communities as ambassadors for protection and establishing a database of individually recognized ibexes to better track population dynamics.
The role of social mechanisms in local ecological knowledge ( LEK ) for biodiversity conservation in the Simien Mountains National Park, Ethiopia
Local Ecological Knowledge (LEK) in the Simien Mountains National Park, Ethiopia, has been pivotal in biodiversity conservation, with its effectiveness demonstrated by the park's removal from UNESCO's endangered sites list in 1996. This study reveals that local taboos and worldviews, embedded within LEK, facilitate sustainable conservation practices despite the imposition of Western-oriented strategies by international agencies. The research, conducted through qualitative methods including in-depth interviews and focus group discussions, highlights the need for integrating LEK-based approaches into park management to ensure long-term sustainability and avoid conflicts. By leveraging local social mechanisms, this study underscores a successful model for biodiversity conservation that harmonizes traditional practices with modern conservation ethics.
Effects of livestock grazing on herbaceous species composition and biomass in the Simien Mountains National Park, Ethiopia
Livestock grazing significantly degrades herbaceous plant diversity and biomass in the Simien Mountains National Park (SMNP), Ethiopia. The study, conducted from February to July 2019, found that ungrazed areas had higher aboveground and below-ground biomass, as well as greater species diversity and richness compared to grazed sites. Researchers identified 43 plant species across 20 families, with grazing reducing both vegetation structure and biodiversity. The findings highlight the negative impact of livestock grazing on habitat quality, emphasizing the need for innovative grazing management strategies to support conservation efforts in protected areas like SMNP.
Technical note: A biological anthropologist's guide for applying microbiome science to studies of human and non‐human primates
A guide for biological anthropologists to apply microbiome science in studying human and non-human primates, particularly in the context of Simien National Park. The paper provides a reproducible workflow and examples for analyzing gut microbiome data, addressing gaps in existing resources that often focus on human biomedicine rather than ecological or evolutionary questions. By leveraging an existing dataset from wild geladas in Ethiopia, it demonstrates how to link environmental variation to host health and evolution, making microbiome analysis more accessible and actionable for anthropological research.
Traditional lore on the healing effects of therapeutic plants used by the local communities around Simien Mountains National Park, northwestern Ethiopia
Simien Mountains National Park harbors 113 therapeutic plant species, with Asteraceae being the most diverse family. The study reveals that local communities rely heavily on wild-collected herbs and roots for remedies, primarily through oral administration, with pounding as the dominant preparation method. Respiratory and febrile illnesses show the highest consensus among informants, indicating strong traditional knowledge. However, erosion of therapeutic plants, reliance on verbal transmission, and neglect by younger generations threaten this traditional practice. Multipurpose plants like Echinops kebericho are identified for conservation priority, while species with high Informant Consensus Factor (ICF) and fidelity levels emerge as potential candidates for drug development.
A tale of duality: Community perceptions towards the ecotourism impacts on Simien Mountains National Park, Ethiopia
A study on Simien Mountains National Park, Ethiopia, reveals that community perceptions of ecotourism impacts are significantly influenced by gender, education level, geographical location, and occupation. Findings indicate that males, individuals with higher education, those living closer to ecotourism destinations, and people engaged in tourism-related work tend to have more positive views about ecotourism's effects. The research employed a mixed-methods approach, combining quantitative and qualitative data collection techniques such as surveys, interviews, and focus group discussions. It highlights the need for collaborative efforts among stakeholders to maximize ecotourism benefits while minimizing negative impacts, emphasizing the importance of inclusive strategies that engage women and less educated individuals through targeted training and resource provision.
Aggression rates increase around seasonally exploited resources in a primarily grass-eating primate
Research reveals that aggression in geladas (Theropithecus gelada), primarily grass-eating primates, intensifies around seasonally scarce underground storage organs in Simien National Park, Ethiopia. Despite their diet being dominated by non-monopolizable grasses, female geladas exhibit strict dominance hierarchies and heightened aggression when competing for belowground resources during the dry season. The study analyzed rank, season, and feeding context to determine that aggression peaks during belowground feeding, particularly in high-ranking females usurping lower-ranking individuals. This suggests that underground storage organs, though less frequently consumed than grasses, play a critical role in social dynamics, possibly due to their energetic significance or competitive value. Further investigation is needed to confirm whether this behavior directly influences resource access.
Challenges to Female Reproduction and Survival in Wild Primates
Research on geladas (Theropithecus gelada) in Simien National Park, Ethiopia, reveals that low social rank and primiparity pose significant energetic challenges for female primates. These factors increase glucocorticoid (GC) levels during gestation, delay weaning, and slow maternal reproductive pace, potentially impacting offspring development long-term. Additionally, the study found that a stronger hypothalamic-pituitary-adrenal (HPA) axis response in white-faced capuchins (Cebus imitator) correlates with higher survival probabilities when facing deadly challenges, suggesting an adaptive role of the HPA axis in prioritizing immediate survival. The research combines data from long-term primate studies to examine GC responses to energetic challenges alongside measures of reproductive success and survival.
Community Knowledge and Support of Ecotourism in the World Heritages Sites of Simien Mountain National Park
A significant portion of the local community in Simien Mountain National Park lacks knowledge about ecotourism despite understanding broader tourism concepts. While 93.5% of respondents had a fair grasp of tourism, over half (57.2%) were unaware of what constitutes a tourist. The study identified three key factors influencing support for ecotourism: perceived benefits (β = 0.24, p = 0.001), gender (β = 0.47, p < 0.001), and family size (β = 0.12, p = 0.005). These findings highlight the nuanced relationship between community awareness and support for sustainable tourism development in protected areas. The research employed a mixed-methods approach, combining surveys, interviews, and focus group discussions with statistical analysis to assess knowledge and support levels among 397 respondents across three districts.
Exploring the Past and the Present: Examining Preservation, Management and Resistance practices in the Simien Mountains National Park, Ethiopia
Simien Mountains National Park (SMNP), Ethiopia, has demonstrated resilience in biodiversity conservation despite persistent human pressures. The park was removed from UNESCO's 'red list' in 2017 due to significant conservation efforts, yet threats like intensive grazing and farmland expansion continue to challenge sustainability. Research reveals a long-standing reciprocity between local communities and the environment, where societal needs—such as food, shelter, and clothing—are met through sustainable resource use, which in turn supports biodiversity. The study employed qualitative methods, including in-depth interviews and archival analysis, to explore this dynamic relationship across historical and contemporary contexts. It highlights how technological and structural changes in society have altered but not severed the connection between people and nature, offering insights into balancing conservation with community livelihoods.
Population status of the Hamadryas baboon in and around Simien Mountains National Park (SMNP), Ethiopia
A population of approximately 495 Hamadryas baboons, comprising adults, sub-adults, juveniles, and infants, was documented within Simien Mountains National Park (SMNP), Ethiopia. The study, conducted across both dry and wet seasons, revealed no significant seasonal changes in population dynamics, indicating that these baboons are primary residents of the park's southwestern, northern, and eastern regions. Age and gender diversity analysis showed a skewed sex ratio favoring females, with ratios of 1:1.65 for adults, 1:1.36 for sub-adults, and 1:1.46 for juveniles. This baseline study serves as a critical benchmark for future population tracking and conservation assessments in this extreme southwestern range of the species.
Review on Economic valuation and conservation of national park of Ethiopia
Ethiopia's national parks, covering 14% of the country's land area, play a vital role in biodiversity conservation and ecological integrity. A key finding from this review is that economic valuation—through non-market approaches like travel cost method and willingness to pay—is an effective tool for designing policies that ensure sustainable use of these resources. Tourism, contributing 6.8% to Ethiopia's GDP, is increasingly leveraging ecotourism as a driver for conservation and development. The study highlights the importance of raising awareness among local communities and stakeholders to foster sustainable ecotourism growth, with both government and non-government organizations actively promoting this approach.
Small mammal abundance and diversity along an altitudinal gradient in the Simien Mountains National Park, Ethiopia
Small mammal diversity and abundance in the Simien Mountains National Park, Ethiopia, exhibit significant variation along altitudinal gradients. The study found that species composition, richness, and distribution of rodents and shrews were strongly correlated with altitude (p = 0.000), with the highest diversity recorded at 2,800 m a.s.l. (H’ = 1.82). Lophuromys simensis and Stenocephalemys albipes dominated across seasons, while Desmomys harringitoni, Dendromys lovati, and Mus imberbis were the least abundant. Species similarity between altitudes of 2,800 m and 3,200 m was high (Sij = 0.97363), contrasting with low similarity at 4,000 m (Sij = 0.15632). The research also identified six endemic rodent species, highlighting the park's unique biodiversity. Environmental disturbances like fires and agriculture pose threats to these small mammals, particularly endemic ones.
The first large-scale record of gelada's spatial distribution and population size in Mountain chains of Tigray, Northern Ethiopia
A groundbreaking survey reveals gelada baboons (Theropithecus gelada) inhabit three mountain clusters in Tigray, Ethiopia—Ganta Afeshum, Hawzen, and Welkait escarpments—expanding their known range beyond the previously documented Bale and Simien Mountain national parks. The study, the first large-scale assessment of its kind, recorded 223 individuals, with Hawzen hosting the highest density (6.99/km²). Habitat-based counting methods and community interviews underpinned this discovery. Threats such as agricultural expansion, settlement, and low conservation awareness are identified, while further research on gelada ecology is recommended to inform protection strategies.
The invention of green colonialism
A critical analysis of 'green colonialism' reveals how environmental discourses and policies can serve as tools for dispossession, particularly in the context of Simien Mountains National Park, Ethiopia. The study challenges the notion that Indigenous communities are inherently more environmentally friendly than Europeans, arguing against 'reverse racism.' However, it is noted that this perspective may be problematic due to its narrow focus on one region, leading to generalizations and contradictions. The research employs a combination of textual analysis and historical examination, drawing on both scholarly literature and interviews to expose the complexities and ethical dilemmas inherent in environmental conservation narratives.
The Invention of Green Colonialism
Guillaume Blanc's 'The Invention of Green Colonialism' exposes the racist and contradictory underpinnings of global conservation narratives, particularly those shaping UNESCO World Heritage Sites. The study reveals how African natures are framed as uninhabited and pristine, contrasting sharply with European landscapes where traditional agro-pastoralist practices are celebrated for their role in maintaining 'outstanding universal value.' Blanc demonstrates that this dual standard overlooks the profound ecological modifications by African communities—such as terracing and water management—that sustain high-altitude ecosystems like Ethiopia's Simien National Park. The book uncovers how fabricated scientific 'facts,' such as exaggerated claims of deforestation, were disseminated through colonial-era reports and reinforced by international conservation agencies, leading to policies that justify evictions under the guise of 'betterment.' Blanc's archival research highlights the intergenerational costs of protected area expansion for African agro-pastoralists and critiques how green colonialism persists even in non-colonized contexts. The work calls for critical reflection among conservation policymakers to challenge institutionalized narratives that prioritize spectacle over justice.
The making of dispensable subjects in the Simien Mountains National Park, Ethiopia: the relocation of the Gich community as an example
Inconsistent relocation policies by the Ethiopian government have left the Gich community in Simien Mountains National Park (SMNP) socially and economically vulnerable, despite the park's 2017 reclassification as a UNESCO World Heritage Site. The study, using in-depth interviews, discourse analysis, and household surveys, reveals that non-participatory relocation plans have created 'dispensable subjects' among the Gich, while the Arkwazeye community has maintained stability by preserving their social assets. The research underscores the need for targeted government intervention to address the Gich community's challenges, highlighting the unintended consequences of heritage conservation efforts on local populations.
At the Roots of a Global Environmental History: An Ethiopian Loop in Nature’s Archives
Research on the environmental history of Africa, particularly focusing on Ethiopia's Simien National Park, reveals a globalized continuity in nature conservation policies from colonial to postcolonial periods. Unlike Eurocentric narratives, archives show an Afro-Asian chronology where Western experts transitioned into international roles, influencing conservation efforts across continents. The study highlights the persistence of colonial-era policies post-independence and explores how national park establishment reflects broader struggles over territory, culture, and resource exploitation.
The Activity and Ranging Patterns of Gelada Monkeys as Behavioral Responses to the Effects of Livestock Grazing in the Simien Mountains National Park, Ethiopia
Livestock grazing significantly alters the activity and ranging behavior of gelada monkeys in Ethiopia's Simien Mountains National Park, according to a 2022 study. Geladas in grazed areas spend more time moving and cover larger home ranges compared to those in non-grazed zones, while social behaviors decrease. The research, conducted from February to July 2019, used instantaneous scan sampling and GPS tracking over 3427 behavioral scans. Statistical analyses revealed that grazing pressure disrupts natural behavior patterns, with implications for conservation strategies. To mitigate these effects, the study recommends reducing grazing pressure and supporting feed cultivation technologies to balance livestock use and wildlife habitat preservation.
The Impact of COVID-19 on Cultural Ecosystem Services Nexus
COVID-19 severely disrupted the cultural ecosystem services nexus in Simien Mountains National Park, disconnecting key benefits like recreation, aesthetics, and education for local communities. Travel restrictions and lockdowns led to job losses, income decline, and stalled conservation efforts, threatening both livelihoods and natural resources. The study highlights the pandemic's role in exposing the interdependence between people and ecosystems, urging policies to address resilience and sustainability post-pandemic.
Feeding ecology of Walia Ibex Capra walie (Mammalia: Artiodactyla: Bovidae) in Simien Mountains National Park, Ethiopia
Walia Ibex (Capra walie), an endemic and endangered species in Simien Mountains National Park, Ethiopia, exhibits a generalist foraging behavior that contributes to crop raiding complaints from local communities. The study, conducted through scan sampling between October 2009 and November 2011, identified over 28 plant species in their diet, with Festuca sp., Lobelia rhynchopetalum, Helichrysum citrispinum, and Helichrysum horridum being the most commonly used. Walia Ibex were primarily active during early morning and late afternoon, dedicating significant time to feeding compared to other diurnal activities. The percentage of time spent on major plant species remained consistent between wet and dry seasons, with a tendency towards browsing over grazing. This behavior likely drives their range shift towards higher altitudes, emphasizing the need for community-based conservation strategies that account for foraging ecology.
Genetic diversity of the Ankober Serin (Crithagra ankoberensis) at Simien Mountains National Park and Guassa Community Conservation Area, Ethiopia
Research reveals limited genetic diversity and restricted gene flow between Ankober Serin (Crithagra ankoberensis) populations in Simien Mountains National Park and Guassa Community Conservation Area, Ethiopia. The study used five microsatellite markers to analyze blood samples from 30 birds across both sites, finding notable but low differentiation despite shared alleles indicating current gene flow. Deviations from Hardy-Weinberg equilibrium suggest small population sizes and geographical barriers, such as steep mountains and deep valleys, reinforce isolation by distance. However, a stepping-stone mechanism may explain limited gene flow between intermediate populations. The findings highlight the need for further research to clarify biogeographic history and inform conservation strategies for this Ethiopian endemic species.
The Application of A Refined SWOT-AHP Based planning and Management Approach for the Conservation of Ethiopia's Protected Area Systems
A refined SWOT-AHP framework is demonstrated to enhance the conservation and management of Ethiopia's protected areas, including Simien Mountains National Park. This approach integrates internal (strengths, weaknesses) and external (opportunities, threats) factors through an Analytic Hierarchy Process (AHP), providing a structured method for evaluating and prioritizing conservation strategies. The study highlights its potential to improve decision-making by the Ethiopian Wildlife Conservation Authority (EWCA), offering actionable insights for balancing ecological, economic, and social dimensions in protected area management.
Diurnal activity patterns of walia ibex (Capra walie) in Simien Mountains National Park, Ethiopia
Walia ibex (Capra walie), an endangered and endemic species found exclusively in Simien Mountains National Park, Ethiopia, exhibit bimodal diurnal activity patterns. The study, conducted between October 2009 and November 2011, revealed that these ibexes are most active before and after noon, resting on rocks and cliffs during midday to avoid the sun and predators. Feeding was significantly more prevalent than other activities such as moving, standing, or socializing (p<0.05). Seasonal variations showed higher feeding activity in both wet and dry seasons, with lower vigilance levels. These findings are crucial for conservation planning, as anthropogenic disturbances could threaten the species' reproduction success. The research used scan sampling to gather data, providing essential insights into the behavior of this vulnerable species.
Population size, group and age structure of geladas (Theropithecus gelada) in escarpments of Eastern Tigray, Ethiopia: implication for conservation
A study conducted in Eastern Tigray, Ethiopia, revealed a very small gelada (Theropithecus gelada) population size, averaging 105.5 individuals across wet and dry seasons. The research used total count methods to estimate population structure, classifying age and sex categories based on morphological characteristics. Findings indicated no statistically significant differences in age and sex group distribution between seasons, with a sex ratio of adult males to females ranging from 1:2.6 to 1:2.7. Group size variations were also observed seasonally. This is the first report of gelada population data for this region, highlighting the need for further monitoring to assess long-term trends and inform conservation strategies.
Small terrestrial mammal distributions in Simien Mountains National Park, Ethiopia: a reassessment after 88 years
A recent reassessment of small terrestrial mammal distributions in Simien Mountains National Park (SMNP), Ethiopia, reveals significant upward elevational shifts in species' ranges over the past 88 years, suggesting a strong influence of climate change on these endemic mammals. The study, conducted between September and November 2015 at four elevations along the western slope of the Simien Mountains, recorded 13 species—all endemic to the Ethiopian Plateau—with the highest species richness observed at mid-elevations (3,250 m). This pattern contrasts with broader global trends but aligns with African mountain ecosystems. By comparing these findings to historical data from 1927, researchers highlighted the potential impact of climate change on the elevational distribution of small mammals in this critical biodiversity hotspot.
Patterns of Plant Community Formation and Vegetation Structure in the Afro-Alpine Vegetation of Simien Mountains National Park, Ethiopia
A study of Simien Mountains National Park, Ethiopia, reveals distinct patterns in plant community formation and vegetation structure within its afro-alpine ecosystems. Researchers identified three unique plant community types, characterized by varying species richness, diversity, and evenness. The analysis highlighted Asteraceae as the most species-rich family, while Poaceae dominated the flora. Herbs constituted 90.7% of the recorded 86 species, with shrubs and trees making up smaller proportions. Population structure analysis of dominant species showed diverse patterns, emphasizing the need for tailored management strategies to sustain these communities due to habitat heterogeneity. The research employed systematic sampling across stratified mountain strata, leveraging Sorensen's similarity coefficient and Shannon-Wiener diversity index for community analysis.
High mortality associated with tapeworm parasitism in geladas (Theropithecus gelada) in the Simien Mountains National Park, Ethiopia
Research reveals that tapeworm parasitism significantly impacts gelada survival and reproduction in Simien National Park, Ethiopia. A decade-long study found high mortality rates among adult females with Taenia serialis cysts, particularly younger adults, while male mortality showed a similar but non-significant trend due to smaller sample sizes. Offspring of infected mothers also experienced increased mortality, primarily due to maternal death. Comparisons with another gelada population suggested that T. serialis may kill hosts more rapidly in Simien National Park. The study highlights the need for further research into individual and population-level heterogeneity in parasite-associated mortality.
Population structure and group size of geladas (Theropithecus gelada) at Chenek, Simien Mountains National Park, Ethiopia
Geladas (Theropithecus gelada) in Simien Mountains National Park, Ethiopia, exhibit a population structure dominated by a single reproductive male per band, accompanied by multiple females and offspring. A study counting 397 individuals over 18 months revealed a significant sex ratio skew (1:1.25 adult males to females) and distinct age-class distributions, with juveniles and infants comprising a substantial portion of the population. Fission-fusion dynamics were observed among bands, suggesting flexible social organization. However, geladas at Chenek face competition for food, including theft from locals and tourists, indicating human-wildlife conflict. The research highlights the need to minimize anthropogenic disturbances to preserve this species' natural behavior and habitat within UNESCO-listed Simien National Park.
Carbon Storage and Climate Change Mitigation Potential of the Forests of the Simien Mountains National Park, Ethiopia
A study on Simien Mountains National Park, Ethiopia, reveals a critical trend of deforestation and its impact on carbon storage. The research found that cultivated and overgrazed land (COL) increased from 20% in 1972 to 48% in 2013, leading to a nearly 50% shrinkage of Afro-montane forest (AMF) and Afro-alpine woodland (AAWL). Projections indicate that AAWL could disappear in 71 years while AMF could vanish in just 49 years at the current deforestation rate. The study also quantified carbon storage, with soil organic carbon (SOC) holding 55.2% of the total carbon stock, followed by above-ground carbon (34.4%) and below-ground carbon (8.3%). Notably, no strong relationship was found between biodiversity (Shannon diversity index) and carbon storage in AMF zones. The research used a nested plot design for biomass measurement and satellite imagery analysis to assess land cover changes.
Activity budget and behavioural patterns of Gelada Theropithecus gelada (Mammalia: Primates: Cercopithecidae) on the Gich Plateau of the Simien Mountains National Park, Ethiopia
Gelada baboons (Theropithecus gelada) on the Gich Plateau of Ethiopia's Simien Mountains National Park exhibit significant seasonal variation in activity budgets, with feeding increasing to 56.7% of daylight hours during the dry season while resting decreases. This high-altitude population, at the climatic and altitudinal limits of their range, also shows age/sex class differences in behavior, except for social activities. The study used continuous focal animal scan sampling over a year (May 2013–April 2014) to track time allocation across feeding, traveling, resting, socializing, and other non-social behaviors. These findings highlight the adaptability of Geladas to extreme environments and underscore the importance of conservation efforts for this unique primate population.
Habitat preference of the endangered Ethiopian walia ibex (Capra walie) in the Simien Mountains National Park, Ethiopia
Research reveals that the endangered Ethiopian walia ibex (Capra walie) exhibits a strong preference for rocky and shrubby habitats over herbaceous ones within Simien National Park, Ethiopia. The study, conducted from 2009 to 2011, analyzed pellet distribution and habitat characteristics during wet and dry seasons, finding minimal overlap between walia ibex and livestock presence (70% of quadrats with walia pellets lacked livestock droppings). A predictive spatial model identified key factors influencing ibex habitat use: herb cover, shrub cover, distance to cliff, road proximity, and altitude. Notably, walia ibex populations have shifted toward steeper eastern areas, likely due to increased human activity in lowland regions. This research underscores the challenges of balancing conservation efforts for endangered species with growing human encroachment.
Feeding ecology of the Ethiopian wolf in the Simien Mountains National Park, Ethiopia
Ethiopian wolves in Simien National Park primarily rely on rodents, particularly Arvicanthis abyssinicus, as their main prey source. This was determined through a study analyzing 214 fecal samples collected between 2011 and 2012. A. abyssinicus accounted for 72% of rodent consumption, with a Chesson index value of 0.3 indicating it as the most preferred prey item. The study also found no significant seasonal difference in prey frequency, suggesting consistent feeding patterns regardless of weather conditions. Protecting rodents is deemed crucial for the conservation of Ethiopian wolves in this region.
Forest Carbon Stocks in Lowland Area of Simien Mountains National Park: Implication for Climate Change Mitigation
Simien Mountains National Park's lowland forests store significant carbon, with mean above-ground and below-ground biomass carbon stocks of 270.89±154.50 t ha⁻¹ and 54.18±30.81 t ha⁻¹ respectively, alongside 242.51±46.42 t ha⁻¹ in soil organic carbon. These findings highlight the park's potential for climate change mitigation, with 20 species contributing to a total of 2334 trees and shrubs (DBH ≥5 cm). The study used allometric models (Brown, 1998) for above-ground biomass and below-ground-to-above-ground ratios (MacDicken, 1997) to estimate carbon stocks, while dead wood, leaf litter, herb/grass, and soil organic carbon were assessed via quadrate sampling and lab analysis. This research underscores the ecological value of Simien's lowland forests in Ethiopia's climate change mitigation efforts.
The relocation of the village of Arkwasiye in the Simien Mountain National Park in Ethiopia: an intervention towards sustainable development?
Relocation of the village Arkwasiye to Kayit in Ethiopia's Simien Mountains National Park, intended as part of conservation efforts by UNESCO, led to mixed outcomes. While villagers reported satisfaction with new infrastructures and services, the move resulted in significant economic drawbacks, including loss of earning opportunities and increased grazing pressures—contradicting the intervention's goals. The study highlights that relocation for conservation must be closely monitored and accompanied by tailored strategies to ensure sustainable development. It offers five recommendations based on these findings.
Human-wildlife conflict in and around the Simien Mountains National Park, Ethiopia
Human-wildlife conflict in the Simien Mountains National Park, Ethiopia, is primarily driven by common jackals, which cause significant problems for local communities, accounting for 57.1% of reported conflicts. Spotted hyenas also pose a threat, with 27% of respondents reporting livestock losses. The study, conducted through surveys of 300 people in 2005 and 2006, found that grazing and firewood collection within the park were negatively correlated with distance from the park, indicating proximity as a key factor in conflict. The research highlights the need for voluntary resettlement of communities near wildlife habitats and alternative resource provision to mitigate conflicts.
Population dynamics of Walia ibex (Capra walie) at Simien Mountains National Park, Ethiopia
A population of 745 Walia ibexes (Capra walie) was estimated in Simien Mountains National Park, Ethiopia, using intensive direct counts in 2009. The study revealed significant variability in growth rates, with the population growing by 2.5% under ideal conditions and slightly declining by 0.13% under random environmental conditions. Growth rate metrics, including instantaneous growth rate (r = 2.6 ± 2.6) and per capita growth rate (λ = 0.03 ± 0.18), showed strong positive correlations, indicating resilience in population dynamics. Historical data and literature reviews were integrated with the 2009 counts to model these trends, providing insights into the species' vulnerability and conservation needs within this UNESCO World Heritage Site.
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