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Inbreeding decreases upwind pheromone: mediated male flight and frequency in female calling behavior in a lab culture of the pyraloid moth Plodia interpunctella
Högskolan Kristianstad, Fakulteten för naturvetenskap. (Pheromone Group)
2018 (Engelska)Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
Abstract [en]

Semiochemicals are chemicals used to communicate. Animals tend to use these e.g. to locate food sources or to find a suitable mate. In this study, the sex pheromone of the Indian meal moth, Plodia interpunctella, was analysed. Since this is an economically important species, it is mass-reared in labs and science centers worldwide for experimental purposes. A culture of these moths was brought into the lab at Lund University for studies and has after that served as a model species demonstrating up-wind pheromone-mediated male flight in different courses held by the university. As years went by, the culture got less successful in up-wind flights, most probably because of inbreeding and bottleneck effects, and therefore, a new culture was taken in. This study focuses on using various experiments to see if there was a behavioral and/or physiological difference between the two cultures. Results show a significant difference in behavioral traits (frequency of calling behavior in females and in male up-wind flights) but not in physiological traits (female pheromone production or male antennal response). This study discusses some effects of mass-reared lab cultures.

Ort, förlag, år, upplaga, sidor
2018. , s. 21
Nyckelord [en]
Plodia interpunctella, Indian meal moth, lab culture, degeneration, inbreeding
Nationell ämneskategori
Etologi Analytisk kemi
Identifikatorer
URN: urn:nbn:se:hkr:diva-18555OAI: oai:DiVA.org:hkr-18555DiVA, id: diva2:1239859
Externt samarbete
Lund University, dep. of Ecology, Pheromone Group, Glenn P. Svensson
Utbildningsprogram
Biologprogrammet
Presentation
2018-06-07, 20-425, Elmetorpsvägen 15, 291 39 Kristianstad, Kristianstad, 13:00 (Svenska)
Uppsök
bio-/geovetenskap
Handledare
Examinatorer
Tillgänglig från: 2018-08-27 Skapad: 2018-08-18 Senast uppdaterad: 2018-08-31Bibliografiskt granskad

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