Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa?
In 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 fo...
| Main Authors: | , , , |
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| Format: | Poster Abstract |
| Language: | Inglés |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/68888 |
| _version_ | 1855540763866169344 |
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| author | Okonya, J. Mujica, N. Carhuapoma, Pablo Kroschel, Jürgen |
| author_browse | Carhuapoma, Pablo Kroschel, Jürgen Mujica, N. Okonya, J. |
| author_facet | Okonya, J. Mujica, N. Carhuapoma, Pablo Kroschel, Jürgen |
| author_sort | Okonya, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In 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. |
| format | Poster Abstract |
| id | CGSpace68888 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| record_format | dspace |
| spelling | CGSpace688882025-11-06T14:13:55Z Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? Okonya, J. Mujica, N. Carhuapoma, Pablo Kroschel, Jürgen sweet potatoes pests of plants global warming phenology models In 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. 2015-09-16 2015-11-10T14:04:19Z 2015-11-10T14:04:19Z Poster Abstract https://hdl.handle.net/10568/68888 en Limited Access application/pdf Okonya, 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. |
| spellingShingle | sweet potatoes pests of plants global warming phenology models Okonya, J. Mujica, N. Carhuapoma, Pablo Kroschel, Jürgen Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title | Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title_full | Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title_fullStr | Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title_full_unstemmed | Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title_short | Will global warming affect the distribution and abundance of the sweetpotato butterfly Acraea acerata Hew. in Africa? |
| title_sort | will global warming affect the distribution and abundance of the sweetpotato butterfly acraea acerata hew in africa |
| topic | sweet potatoes pests of plants global warming phenology models |
| url | https://hdl.handle.net/10568/68888 |
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