Measuring the livelihood impacts of invasive alien species in East Africa
Although a lot is known about the biodiversity impacts of introduced species in East and southern Africa, very little is known about the livelihood impacts that they have on communities that depend on the goods and services provided by ecosystems. The aim of this project is to determine the negative…
Toolkits for invasive plants in Laikipia, Kenya
Many exotic plant species introduced to Laikipia County, Kenya, have escaped cultivation and threaten biodiversity. Little is currently known however, about the presence of invasive species or their impact. Without this type of information, it is unlikely that various stakeholders will take action to effectively manage this threat. This project…
Controlling pest pear in Laikipia
Pastoralists in northern Kenya are heavily dependent on livestock. Their lives are being devastated by the non-native cactus Opuntia stricta. This weed has invaded the last good grazing land and when livestock and wildlife eat its fruits the spines can cause infection and death. Chemical and mechanical control methods are…
Woody weeds in East Africa
Many exotic trees and shrubs have been introduced into Africa and become destructive invasive species. They're reducing native biodiversity and limiting the livelihoods of those that live in rural communities. CABI is trying to mitigate these impacts in East Africa by generating and sharing knowledge on their effects and finding…
Finding a biocontrol agent for Crassula
Crassula helmsii is an invasive water weed that dominates still or slow-flowing water bodies. It's spreading throughout the UK and has the potential to out-compete native flora and reduce oxygen levels by forming dense mats. Management of this species can be very challenging, with chemical and mechanical options limited. CABI…
Controlling floating pennywort in a safe and sustainable way
Floating pennywort is an invasive aquatic plant that can over-run water bodies in the UK, and is threatening habitats, native plants, fish and insects. Also a problem across much of Europe, this plant has rapid growth and can regenerate from small fragments. Management is mainly limited to mechanical clearance which…