Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Longhorned beetles"”.
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Chemically-Mediated Mate Location and Recognition in Longhorned Beetles (Coleoptera: Cerambycidae)
… In this study, I test the hypothesis that adult longhorned beetles are attracted to volatile compounds emanating from larval host plants. Once on the larval host, the mating strategy is scramble and interference competition among males for females. I also find that large body size confers a …
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Evolution and Taxonomic Distribution of Volatile Pheromones in Cerambycine Longhorned Beetles
Volatile sex or aggregation pheromones play an important role in mate location in many groups of insects. The lack of variation in these pheromone communication systems among the best studied groups has hindered understanding of the evolution of volatile pheromone use in insects. The diverse beetle …
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Factors contributing to variation in cuticular hydrocarbon profiles of two species of longhorned beetles (Coleoptera: Cerambycidae)
… of cuticular hydrocarbons of two species of longhorned beetles that are native to eastern North America, Neoclytus acuminatus (F.) and Xylotrechus colonus F. The cuticular wax layer of N. acuminatus comprises at least 20 hydrocarbons ranging from C24 to C29, three of which serve as the …
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The Influence of Chirality on the Behavioral Responses of Longhorned Beetles (Coleoptera: Cerambycidae) to Volatile and Contact Pheromones
… influences the behavioral resposnses of longhorned beetles to volatile and contact pheromones. Structures of pheromones in the longhorned beetles generally fall along taxonomic lines, and various structural modifications such as functional groups and stereochemistry are used to grant …
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1-(1H-pyrrol-2-yl)-1,2-propandione is a crucial pheromone component of the rare North American cerambycid beetle Dryobius sexnotatus
… pheromone component of several Asian species of longhorned beetles in the subfamily Cerambycinae. Here, we report the first confirmed identification of this pyrrole as a pheromone component of a cerambycine species native to North America, the rare Dryobius sexnotatus Linsley. Headspace volatiles …
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Host plant relationships and chemical communication in the cerambycidae
… groups of insects. Commonly referred to as longhorned beetles, the larvae of cerambycids usually feed on the tissues of woody plants and can be important insect pests, damaging and even killing trees in managed and natural landscapes. In this dissertation, I revise a historical database on …
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Functional diversity enhances detection of ecosystem stability and resolution of predator-prey interactions within a multitrophic community
… in a multitrophic community consisting of longhorned beetles and their beetle predators. I also considered predator-prey interactions between beetles and their insectivore avian predators at the community level.</p> <p>To meet my objectives, I developed new functional traits to further …
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Host plant associations and chemical ecology of Cerambycidae
… species is of high importance. A number of longhorned beetle species (Coleoptera: Cerambycidae) are considered major pests worldwide. Longhorned beetles include some of the most damaging pests of woody plants and invasive species pose a serious threat to North American forests. The beetle …
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Chemical communication in cerambycid beetles and the molecular basis of olfaction
Longhorned beetles of the insect family Cerambycidae are a highly diverse group of insects whose larvae bore into the stems of forbs and the wood and roots of trees, and the family contains numerous pests of agriculture, forestry, and structural timber. The reproductive biology of adult cerambycids …
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Use of sensory information by cerambycids and their natural enemies to locate resources and mates
… to locate mates and resources. Many species of longhorned beetles (Coleoptera: Cerambycidae) prefer to feed in trees that are stressed, weakened, or in the process of dying. These resources are ephemeral, disappearing rapidly as they are colonized by competitors and the condition or quality of …