FAO Desert Locust Early Warning System Poster

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A full-sized poster explaining FAO's Desert Locust early warning system. The poster has been presented at several conferences on IPM and Climate Change as well as presentations made at universities in order to publicize and promote FAO's work on Desert Locust

FAO Desert Locust Early Warning System Poster

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Desert Locust threat in the Sahel 2012 - Informal Donors' Meeting presentatio...

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40th DLCC: Desert Locust outlook

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Desert Locust threat to W Africa (144th FAO Council, 12 June 2012)

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Presentation given at the 12th International IPM Symposium (Memphis, TN USA on 27-29 March 2012) by Keith Cressman. FAO operates an early warning system to keep the international donor community and some 30 affected countries informed of the Desert Locust situation and potential developments concerning breeding and migration. The system is the basis of the preventive control strategy to reduce plagues. Remote sensing products are used operationally to help detect rainfall and green vegetation in locust habitats and to guide survey teams. Custom GIS applications are utilized in affected countries and at FAO for data analysis. An overview of these technologies, including lessons learned during the past two decades, is presented.

Using GIS and remote sensing in the IPM context of early warning

Using GIS and remote sensing in the IPM context of early warning

Using GIS and remote sensing in the IPM context of early warning

The FAO Senior Locust Forecasting Officer, Keith Cressman, presented an initial evaluation of the dynamic greenness maps developed by the Dept. of Environmental Sciences and Land Use Planning / Environmetrics and Geomatics at the Université catholique de Louvain (UCL), Louvain-le-Neuve, Belgium. The dynamic green vegetation map includes both the spatial and temporal information in one geotiff-formatted file suitable for analysis within the SWARMS GIS. The map shows the evolution of vegetation development for the previous 11 decades (i.e. eleven 10-day periods) for each 250m pixel, indicated in varying shades of red, orange and green. The product informs the user, in this case FAO’s Locust Forecasting Officer, of the spatial-temporal variations of the green vegetation and indirectly of the rainfall distribution through vegetation development. This allows the onset of green vegetation, and ephemeral vegetation (false starts), and the disappearance of vegetation at the end of its developmental cycle to be identified. It also indicates the location of evergreen vegetation that is of less importance to Desert Locust. The reporter presented his initial assessment of the new product, indicating some recession areas where vegetation changes are not detected.

Greenness maps - Initial evaluation

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A presentation made by Keith Cressman, FAO Senior Locust Forecasting Officer, at the WMO/FAO International Conference of Adaptation to Climate Change and Food Security in West Asia and North Africa (Kuwait City, 13-16 Nov 2011). The presentation gives an overview of Desert Locust population dynamics, climatological effects and adaptation strategies. The Desert Locust is probably the oldest and most feared migratory pest in the world, plaguing farmers in Africa and Asia since Phaoronic times. Under optimal conditions, locusts increase rapidly and form swarms. A single swarm, larger than Paris or Cairo, can contain billions of insects, migrate across continents, and eat enough food for 2,500 people in one day. During plagues, vulnerable households can find themselves in debt, limited national resources are rapidly depleted and food security can be at risk in affected countries. It can take several years and hundreds of millions of dollars to bring a plague to an end. Changes in the climate during the remainder of this century will affect Desert Locust habitats, breeding, migration and plague dynamics in West Asia and North Africa (WANA). Although it is widely acknowledged that WANA will become warmer, there are differing views about changes in precipitation under the various climate change scenarios. General trends may contain hidden variations within the regions and countries. Certain areas will become more prone to extreme events such as flooding and droughts. Regular assessment of climate change impacts is a component of the locust early warning system operated by the Food and Agriculture Organization (FAO) of the United Nations to monitor the global situation and alert locust-affected countries and international donors. The latest scientific evidence is reviewed to postulate potential effects on the Desert Locust. It is probably reasonable to assume that this ancient pest, which is particularly well suited for survival under difficult conditions in arid areas and has successfully endured previous changes in the climate, will adapt to climate changes in the foreseeable future.

Climate change and locusts in the WANA region

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Menace acridien au Sahel 2012 (4 oct 2012 mise à jour)

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Desert Locust threat in the Sahel 2012 (updated 4 Oct)

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40th DLCC: Questionnaire results

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40th DLCC: FAO SWAC

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40th DLCC: Desert Locust outlook

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40th DLCC: Desert Locust situation

40th DLCC: Desert Locust situation

40th DLCC: Desert Locust situation

Desert Locust threat to W Africa (144th FAO Council, 12 June 2012)

Desert Locust threat to W Africa (144th FAO Council, 12 June 2012)

Desert Locust threat to W Africa (144th FAO Council, 12 June 2012)

Using GIS and remote sensing in the IPM context of early warning

Using GIS and remote sensing in the IPM context of early warning

Using GIS and remote sensing in the IPM context of early warning

Greenness maps - Initial evaluation

Greenness maps - Initial evaluation

Greenness maps - Initial evaluation

Climate change and locusts in the WANA region

Climate change and locusts in the WANA region

Climate change and locusts in the WANA region