Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa?

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dc.creatorOkonya, J.
dc.creatorMujica, N.
dc.creatorCarhuapoma, Pablo
dc.creatorKroschel, Jürgen
dc.date2015-09-16
dc.date2015-11-10T14:04:19Z
dc.date2015-11-10T14:04:19Z
dc.date.accessioned2026-06-27T18:02:39Z
dc.descriptionIn tropical Africa, the sweetpotato butterfly Acraea acerata, is a major endemic pest of sweetpotato (Ipomoea batatas (L.) Lam). Outbreaks of A. acerata are reported by farmers in Uganda to be more frequent than in the past 10 years. We therefore hypothesise that global warming may be responsible for this increased risk of outbreaks and abundance (damage potential). We used the Insect Life Cycle Modelling (ILCYM) software to develop temperature-based phenology models and applied three risk indices (establishment-, generation, and activity index) in a geographic information system (GIS) to map potential establishment, abundance and spread on global, regional and national scales. For current temperature conditions (year 2000) interpolated WorldClim data were used and for future climates (year 2050) downscaled data of the SRES-A1B scenario were applied.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/68888
dc.identifier.urihttp://hdl.handle.net/123456789/153317
dc.languageen
dc.rightsLimited Access
dc.sourceOkonya, J.; Mujica, N.; Carhuapoma, P.; Kroschel, J. 2015. Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa?. Tropentag 2015. Management of land use systems for enhanced food security: Conflicts, controversies and resolutions. Berlin (Germany). 16-18 Sep 2015.
dc.subjectsweet potatoes
dc.subjectpests of plants
dc.subjectglobal warming
dc.subjectphenology
dc.subjectmodels
dc.titleWill global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa?
dc.typePoster Abstract

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