Predicting the Distribution of Chilo partellus (Swinhoe) and Its Parasitoid Cotesia flavipes Cameron in Ethiopia using Correlation, Step-wise Regression and Geographic Information Systems
- 1 June 2002
- journal article
- research article
- Published by Springer Science and Business Media LLC in International Journal of Tropical Insect Science
- Vol. 22 (02), 123-129
- https://doi.org/10.1017/s1742758400015204
Abstract
The recent development of geographic information systems (GIS) provides new avenues for analysing spatial patterns in insect populations. Field survey data, along with GIS and statistical models were used to predict the distribution of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) and Cotesia flavipes Cameron (Hymenoptera: Braconidae) in Ethiopia. The results obtained suggested that the distributions of Ch. partelhis and Co. flavipes were affected by rainfall and temperature. The predicted distributions of Ch. partellus and Co. flavipes were similar. Validation of predicted values is discussed. Le récent développement du système d'information géographique (GIS) ouvre de nouvelles perspectives pour l'analyse de la distribution spatiale des populations d'insectes. Les données obtenues lors d'enquêtes de terrain, combinées à des modèles GIS et statistiques on été utilisées pour prédire la distribution de Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) et de Cotesia flavipes Cameron (Hymenoptera: Braconidae) en Ethiopie. Les résultats obtenus suggèrent que la distribution de Ch. partellus et de Co. flavipes est influencée par la pluviométrie et la température. Les distributions prédites de Ch. partellus et de Co. flavipes sont similaires. La validation des valeurs prédites est discutée.Keywords
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