A simple age-structured, temperature-dependent population growth model of brown rice hopper (Nilaparvata lugens (Stal))

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dc.creatorWei, Xiaojing
dc.creatorBalanza, Jane Girly
dc.creatorNgoc, Vu Thi Bich
dc.creatorGiles, James Edward
dc.creatorSwaans, Cornelis
dc.date2025-01-19
dc.date2025-02-05T10:04:45Z
dc.date2025-02-05T10:04:45Z
dc.date.accessioned2026-06-27T13:36:04Z
dc.descriptionBrown rice hopper (BRH), a key insect pest to rice, is known can change its longevity and fecundity due to rising temperature. Here we modeled the response of BRH population growth to temperature using an age-structured population growth model, based on reported responses of BRH development time, survival, and fecundity to temperature. We applied this model to predict historical level of BRH population growth in the Mekong River Delta (MRD) and compared the predictions with historically observed percentages of rice fields infested by BRH. The model was able to capture the seasonal variation in BRH infestation and the optimal temperature for BRH activities (app. 26.5 degrees C). These results highlighted the importance of temperature in regulating BRH population growth. The model, with further improvements as discussed, could be used for projecting BRH activity under rising temperatures or predicting BRH outbreaks due to seasonal temperature anomalies.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/172786
dc.identifier.urihttp://hdl.handle.net/123456789/64500
dc.languageen
dc.publisherCold Spring Harbor Laboratory
dc.rightsOpen Access
dc.sourceWei, X.; Balanza, J.G.; Ngoc, V.T.B.; Giles, J.E.; Swaans, C.P.M. (2025) A simple age-structured, temperature-dependent population growth model of brown rice hopper (Nilaparvata lugens (Stal)). [Preprint]. BioRxiv. Posted on 19 January 2025. DOI: https://doi.org/10.1101/2025.01.15.633297
dc.subjectrice
dc.subjectpest control
dc.subjectmodelling
dc.subjectclimate
dc.titleA simple age-structured, temperature-dependent population growth model of brown rice hopper (Nilaparvata lugens (Stal))
dc.typePreprint

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