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Showing result 11 - 15 of 16 essays matching the above criteria.

  1. 11. Short-Wave Infrared Lidar on Atmospheric Aerosols and Insects

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Mariam Andersson; [2017]
    Keywords : Lidar; Scheimpflug; Time-of-Flight; Remote sensing; Atmospheric sensing; Physics and Astronomy;

    Abstract : This thesis focusses on the implementation of two elastic lidar (light detection and ranging) techniques for the monitoring of atmospheric aerosols and insects at short-wave infrared wavelengths. Data acquisition software was developed for a time-of-flight system, housed in the Lund University Mobile Biosphere Observatory (LUMBO), with consideration to the intended entomological application. READ MORE

  3. 12. Can alteration in host odor blends change the olfactory preferences in Spodoptera littoralis?

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Hanna Olovsson; [2017]
    Keywords : host preference; Spodoptera littoralis; induction of feeding; cotton; olfactometer; y-tube;

    Abstract : Gustatory and olfactory stimuli have been shown to induce feeding preferences in generalist phytophagous insect species. Generalists have to process a lot of information while performing host selection and it has been suggested that this may be a limitation, while it makes the host detection slower than for specialist species that process a lower amount of information. READ MORE

  4. 13. Moth and Birch

    University essay from Lunds universitet/Matematisk statistik

    Author : Valentina Pivotti; [2017]
    Keywords : Mathematics and Statistics;

    Abstract : The goal of this thesis is to build a near-real time defoliation detector that could be used, early in the spring, to find out which areas of a birch forest are being affected by an insect outbreak. The importance of a reliable detection at the beginning of the spring lies on the possibility for an early intervention. READ MORE

  5. 14. Kilohertz electro-optics for remote sensing of insect dispersal

    University essay from Lunds universitet/Fysiska institutionen

    Author : Sandra Török; [2013]
    Keywords : LUMBO; remote sensing; dark-field spectroscopy; insect wingbeat modulation; Technology and Engineering;

    Abstract : This thesis evaluates the possibilities of determining the flight direction of insects by analysing the wingbeat modulation pattern of the backscattered sunlight from insects. The Lund University Mobile Biosphere Observatory (LUMBO) was used during the summer of 2013 for a field campaign at two locations in Skåne, Sweden. READ MORE

  6. 15. Codling moth, Cydia pomonella, antennal responses to Metschnikowia pulcherrima and Metschnikowia andauensis synthesised volatiles

    University essay from SLU/Plant Breeding and Biotechnology (until 121231)

    Author : Tobias Lindblom; [2012]
    Keywords : Cydia pomonella; Codling moth ; Metschnikowia; yeast; volatiles ; GC EAD ; average; apple;

    Abstract : Insect-yeast interactions have been known for decades but are poorly understood. To investigate the codling moth (Cydia pomonella ) olfactory connection to yeasts, volatiles from two ascomycete yeasts, Metschnikowia pulcherrima and Metschnikowia andauensis, were analysed using gas chromatography combined with electroantennographic detection (GC-EAD). READ MORE