Differentialsmoothing can be used to reflect the relations between the characteristic parameters of hyper-spectra and leaf area index (LAI), and indicate the intensity of grasshopper damage. Hyper-spectra remote sensing technique which can be used to monitor grasshoppers more exactly has advantages in measuring the damage degree and classifying damage areas of grasshoppers, so it can be adopted to monitor the spatial distribution dynamic of rangeland grasshopper population. The NDVI values can be analyzed throughout the remote sensing data and be used in grasshopper forecasting.
Remote sensing has been applied in monitoring the living, growing and breeding habitats of grasshopper population, and can be used to develop a forecast model combined with GIS. Meanwhile, the traditional methods are compared with the spectral technology. In the present paper, the importance of forecasting grasshoppers and its habitat is expounded, and the development in monitoring grasshopper populations and the common arithmetic of spectral analysis technique are illustrated.
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However, how to predict grasshoppers accurately and effectively is a difficult problem for a long time. Grasshopper monitoring is of great significance in protecting environment and reducing economic loss. Furthermore, it is important to explore the food potential of some grasshopper species native to western countries and to develop their rearing methodologies to enhance availability. It would be interesting to develop food products derived from grasshoppers in a form acceptable to consumers. The success of introducing grasshoppers as a novel food in western countries depends on changes in consumer attitudes. The paper also summarizes some religious, social and economic factors that are associated with grasshopper consumption.
It also highlights some of the health related aspects that might arise from the consumption of grasshoppers, mostly linked to agricultural practices and the allergic response of sensitive individuals. Data from the literature regarding the nutrient composition, amino acid profile, fatty acid profile, mineral composition and vitamin content of grasshoppers as reviewed in this paper, suggest that a number of grasshopper species are a good source of nutrients. From a nutritional point of view, of all the insects consumed globally, grasshoppers are particularly important as a human food.
Current trends suggest an increasing future demand for conventional meats, which indicates a strong need to shift this dependency to other alternative protein sources such as insects. Directory of Open Access Journals (Sweden)įull Text Available Description of the subject.
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