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posted by
3 people
georgeoide
klauso
silvialuiselli
Abstract
Abstract The estimation of Acridid (Orthoptera: Acrididae) density is the goal of a wide variety of conservation studies to monitor the impacts of grassland management or habitat change. The first aim of this paper was to study the influence of surveyors, time of the day and size/form of the box quadrat method on density values of Acridids in grassland habitats in Western France. The main taxa were Calliptamus italicus (L.) and Gomphocerinae sub-family. Surveyor and day-time (early morning vs. mid-day) were ...
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Abstract
Climate change could profoundly affect the status of agricultural insect pests. Several approaches have been used to predict how the temperature and precipitation changes could modify the abundances, distributions or status of insect pests. In this article it is demonstrated how the use of simple models, such as Ricker's classic equation, including a mechanistic representation of the influence of exogenous forces may improve our predictive capacity of the dynamic behaviour of insect populations. Using data from classical experiments in population ecology, ...
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