Search for dissertations about: "aggregation pheromone"
Showing result 1 - 5 of 8 swedish dissertations containing the words aggregation pheromone.
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1. Conifer chemical defense : Rugulation of bark beetle colonization and pheromone emission
Abstract : Terpenes and phenols are of importance in conifer defense against insects and pathogens. Knowledge about tree chemical defense is vital for developing practical methods to maintain healthy forests. READ MORE
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2. Odour detection in the desert locust, Schistocerca gregaria: antennal structure and function
Abstract : The desert locust, Schistocerca gregaria, is a polymorphic insect that occurs in two morphological and physiological distinct phases, solitary and gregarious, depending on population density. The two phases are reversible at any developmental stage. The gregarious phase produces and uses stage-specific pheromones, that keep the swarm together. READ MORE
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3. Olfaction in Desert Locusts- Anatomy, Function and Plasticity of the Central Olfactory System
Abstract : The anatomy, function and plasticity of the primary olfactory centre, the antennal lobe (AL), of the desert locust Schistocerca gregaria was investigated using a number of neuroanatomical and neurophysiological methods. Anatomical characterisation of the AL in a number of orthopteran species made it possible to deduce a model concerning the evolution of microglomeruli. READ MORE
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4. Spatiotemporal monitoring of rare and elusive saproxylic beetles - A pheromone based approach
Abstract : Forest ecosystems are under severe pressure from global environmental changes and increasing demands of wood-related products. During the last century, intensified management regimes have led to the decline of many previously common forest habitats, with catastrophic effects for biodiversity. READ MORE
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5. A pheromone-based toolbox of longhorn beetles (Cerambycidae) for monitoring biodiversity in ephemeral deadwood substrates of oak
Abstract : Forest biodiversity is exhibiting a worldwide decline in response to environmentalchanges that result in the rapid loss, degradation, and fragmentation of essential foresthabitats. Saproxylic insects, especially beetles, are an important part of forestbiodiversity by contributing to deadwood decomposition, and serving as importantcomponents of food webs. READ MORE