Modelos de distribución de la broca Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae) en diferentes usos de suelo, en el cantón de Turrialba, Costa Rica

Montes Escobar Karime. 2012. Modelos de distribución de la broca Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae) en diferentes usos de suelo, en el cantón de Turrialba, Costa Rica. Turrialba : CATIE, 92 p. Tesis Magister : Scientiae. Agroforestería tropical : Centro Agronomico Tropical de Investigacion y Ensenanza

Résumé : In order to adjust statistical models that describe the dispersion of the coffee berry borer (Hypothenemus hampei) in adjacent land uses to coffee plantations (grass, sugar cane and forest), data from Amada Olivas (2010) was used. Sampling was conducted with a methodology of transects in farms located in the canton of Turrialba, within the Central Volcanic Corridor Talamanca (CBVCT) in Costa Rica. In each transect BrocapTM traps were placed every 10 m, capturing the berry borer for six months. With the purpose to study the distance at which the insect is dispersed in different adjacent land uses, three statistical modeling approaches were used 1) non-linear models, 2) general linear mixed models and 3) generalized linear mixed models. These different modeling approaches within each model type were evaluated with the information criteria AIC and BIC. To compare these different modeling approaches, the Pearson correlation coefficient between the predicted values for each model and the observed values was used. The results of this work, suggest that the best fit for the description of the insect dispersion was according to the generalized linear mixed model. Based on this model, the approximate maximum distance of dispersal occurred in the adjacent sugar cane land use at 30 m and the minimum distance was in the adjacent forest land use at 10 m. These results suggest that the use of adjacent sugar cane land use, serves as a path for the coffee berry borer to move among the coffee plants. In the other hand, the best land use that controls the movement of the berry borer is the forest, given that the quantity of insects captured were significantly lower than the other land uses, such as grass and sugar cane. This means that the forest represents a barrier for the movement of the plague between coffee plots.

Classification Agris : H10 - Ravageurs des plantes
U10 - Informatique, mathématiques et statistiques

Auteurs et affiliations

• Montes Escobar Karime, CATIE (CRI)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/570521/)

Métriques

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