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Assessment of drivers of forest changes using multi-temporal analysis and boosted regression trees model: a case study of Nyeri County, Central Region of Kenya
(Modeling Earth Systems and Environment, 2020-05-06)
The Central Region of Kenya has undergone significant changes in land cover due to a broad range of drivers. These changes are more pronounced in forestland conversions. Past researches within the study area have identified ...
Carbon Sequestration by the Above Ground Biomass Pool in the South West Mau Forest of Kenya, 1985 - 2015
(Journal of Environment and Earth Science, 2020)
Forests are important for regulation of the global carbon balance. Increase in forest biomass enhances atmospheric carbon sequestration while decrease in forest biomass contributes to carbon dioxide emissions. World over, ...
Trend and Variability in Interannual Air Temperature Over South West Mau Forest, 1985 - 2015
(Journal of Natural Sciences Research, 2020)
Globally high altitude forest regions are considered to be more prone to rapid warming. These regions have also shown great seasonal and inter annual temperatures variability. In Kenya mean annual temperatures increased ...
Fine-scale habitat heterogeneity influences browsing damage by elephant and giraffe
(Wiley Publishers, 2020-06)
Effects of large mammalian herbivores on woody vegetation tend to be heterogeneous in space and time, but the factors that drive such heterogeneity are poorly understood. We examined the influence of fine-scale habitat ...
The Trend and the Pattern of Seasonal Rainfall in the Period 1993 – 2018 in Embu East Sub County, Kenya
(East African Journal of Environment and Natural Resources, 2020)
Kenya, like many countries in the world, is vulnerable to climate variability and change. The livelihood of the people in Embu East Sub-county is highly dependent on rain-fed agriculture so climatic threats affect food and ...
The Biological Assessment and Rehabilitation of the World’s Rivers: An Overview
(Water, 2021-01-31)
The biological assessment of rivers i.e., their assessment through use of aquatic assemblages,
integrates the effects of multiple-stressors on these systems over time and is essential to evaluate
ecosystem condition and ...
Using the Biological Condition Gradient Model as a Bioassessment Frameworks to Support Rehabilitation and Restoration of the Upper Tana River Watershed in Kenya
(Frontiers in Environmental Science, 2021-07)
The biological condition gradient (BCG), a scientific framework that describes the change in ecosystem characteristics in response to human-induced levels of stressors, was modified and used to characterize watershed ...
Evidence of nutrient translocation in response to smoke exposure by the East African ant acacia, Vachellia drepanolobium
(Wiley & Sons Ltd, 2021-09)
1. Fire is a major selective force on arid grassland communities, favoring traits such as the smoke-induced seed germination response seen in a wide variety of plant species. However, little is known about the relevance ...
Synergistic effects of long-term herbivory and previous fire on fine-scale heterogeneity of prescribed grassland burns
(Ecology, 2020-10)
Grassland and savanna ecosystems, important for both livelihoods and biodiversity conservation, are strongly affected by ecosystem drivers such as herbivory, fire, and drought. Interactions among fire, herbivores and ...
Naïve plant communities and individuals may initially suffer in the face of reintroduced megafauna: An experimental exploration of rewilding from an African savanna rangeland
(PLOS ONE, 2021-04-06)
Excluding large native mammals is an inverse test of rewilding. A 25-year exclosure experiment in an African savanna rangeland offers insight into the potentials and pitfalls of the rewilding endeavor as they relate to the ...