Browsing by Author "Estes, Anna"

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    Climate change and variability perceptions and adaptations of pastoralists’ communities in the Maasai Steppe, Tanzania
    (Elsevier, 2021) Nnko, Happiness J.; Gwakisa, Paul S.; Ngonyoka, Anibariki; Estes, Anna
    Designing adaptation strategies to climate change and variability impacts requires an understanding of people's perception of climate change. Despite Maasai of the Maasai Steppe being vulnerable to climate change, how communities understood and interpret climate change have received little attention. A cross-sectional study of community's perceptions of climate change and adaptation was conducted. A multinomial logistic regression in R 3.3.2 was used to analyze the determinants of adaptation decisions at a household level. Perceptions of climate change was based on experience of increasing temperature (94.4%, n = 136), insufficient rainfall with spatial-temporal variation (88.2%, n = 136) and frequent dry spell in recent years (91.2%, n = 136). Impacts of these changes were drop of livestock productivity (85.7%, n = 136), death of livestock (11.9%, n = 136) and conflicts (3.4%, n = 136). Although trekking livestock to ronjo and livestock based donation from relatives were commonly used to moderate adverse impacts of drought, at the 95% CI, at least primary education influenced household decision to move to ronjo (β = 2.5, SE = 1.2, p = 0.045) and donation (β = 3.1, SE = 1.4, p = 0.029) when compared to not adapting. Moreover, few livelihood assets observed in this study may limit perceptions and even adaptations of Maasai communities.
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    Pastoralists’ vulnerability to trypanosomiasis in maasai steppe
    (Springer, 2017) Nnko, Happiness J.; Gwakisa, Paul S.; Ngonyoka, Anibariki; Saigilu, Meshack; Ole-Neselle, Moses; Kisoka, William; Sindato, Calvin; Estes, Anna
    Trypanosomiasis is a neglected tropical disease of both livestock and humans. Although pastoral communities of the Maasai Steppe have been able to adapt to trypanosomiasis in the past, their traditional strategies are now constrained by changes in climate and land regimes that affect their ability to move with their herds and continually shape the communities’ vulnerability to trypanosomiasis. Despite these constraints, information on communities’ vulnerability and adaptive capacity to trypanosomiasis is limited. A cross-sectional study was therefore conducted in Simanjiro and Monduli districts of the Maasai Steppe to establish pastoralists’ vulnerability to animal trypanosomiasis and factors that determined their adaptation strategies. A weighted overlay approach in ArcGIS 10.4 was used to analyze vulnerability levels while binomial and multinomial logistic regressions in R 3.3.2 were used to analyze the determinants of adaptation. Simanjiro district was the most vulnerable to trypanosomiasis. The majority (87.5%, n = 136) of the respondents were aware of trypanosomiasis in animals, but only 7.4% (n = 136) knew about the human form of the disease. Reported impacts of animal trypanosomiasis were low milk production (95.6%, n = 136), death of livestock (96.8%, n = 136) and emaciation of animals (99.9%, n = 136). Crop farming was the most frequently reported animal trypanosomiasis adaptation strategy (66%, n = 136). At a 95% confidence interval, accessibility to livestock extension services (β = 7.61, SE = 3.28, df = 135, P = 0.02), years of livestock keeping experience (β = 6.17, SE = 1.95, df = 135, P = 0.001), number of cattle owned (β = 5.85, SE = 2.70, df = 135, P = 0.03) and membership in associations (β = − 4.11, SE = 1.79, df = 135, P = 0.02) had a significant impact on the probability of adapting to animal trypanosomiasis