Prioritization of Invasive Alien Species with the Potential to Threaten Agriculture and Biodiversity in Kenya Through Horizon Scanning
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Date
2022
Authors
Mulema, Joseph
Day, Roger
Nunda, Winnie
Akutse, Komivi Senyo
Bruce, Anani Y.
Gachamba, Sospeter
Haukeland, Solveig
Gathu, Ruth Kahuthia
Kibet, Staline
Koech, Asenath
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature Switzerland
Abstract
Invasive alien species (IAS) rank among
the most significant drivers of species extinction
and ecosystem degradation resulting in significant
impacts on socio-economic development. The recent
exponential spread of IAS in most of Africa is attributed
to poor border biosecurity due to porous borders
that have failed to prevent initial introductions. In addition, countries lack adequate information
about potential invasions and have limited capacity
to reduce the risk of invasions. Horizon scanning
is an approach that prioritises the risks of potential
IAS through rapid assessments. A group of 28 subject
matter experts used an adapted methodology to
assess 1700 potential IAS on a 5-point scale for the
likelihood of entry and establishment, potential socioeconomic
impact, and impact on biodiversity. The
individual scores were combined to rank the species according to their overall potential risk for the country.
Confidence in individual and overall scores was
recorded on a 3-point scale. This resulted in a priority
list of 120 potential IAS (70 arthropods, 9 nematodes,
15 bacteria, 19 fungi/chromist, 1 viroid, and 6
viruses). Options for risk mitigation such as full pest
risk analysis and detection surveys were suggested for
prioritised species while species for which no immediate
action was suggested, were added to the plant
health risk register and a recommendation was made
to regularly monitor the change in risk. By prioritising
risks, horizon scanning guides resource allocation
to interventions that are most likely to reduce risk and
is very useful to National Plant Protection Organisations
and other relevant stakeholders
Description
research article
Keywords
Invasive alien species, Horizon scanning, Pest risk, Risk prioritization ยท, Risk management
Citation
https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Prioritization+of+Invasive+Alien+Species+with+the+Potential+to+Threaten+Agriculture+and+Biodiversity+in+Kenya+Through+Horizon+Scanning&btnG=#d=gs_cit&t=1687241679103&u=%2Fscholar%3Fq%3Dinfo%3Ad0cXgChaCZAJ%3Ascholar.google.com%2F%26output%3Dcite%26scirp%3D0%26hl%3Den:~:text=Mulema%2C%20J.%2C%20Day%2C%20R.%2C%20Nunda%2C%20W.%2C%20Akutse%2C%20K.%20S.%2C%20Bruce%2C%20A.%20Y.%2C%20Gachamba%2C%20S.%2C%20...%20%26%20Kenis%2C%20M.%20(2022).%20Prioritization%20of%20invasive%20alien%20species%20with%20the%20potential%20to%20threaten%20agriculture%20and%20biodiversity%20in%20Kenya%20through%20horizon%20scanning.%20Biological%20Invasions%2C%2024(9)%2C%202933%2D2949.