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Investigating Patterns of Variation in Reproductive Dispersal and Wolbachia Infection in Malagasy Ants (Hymenoptera: Formicidae)

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dc.contributor.advisor Smith, M. Alex Tsoi, Fiona J. 2013-09-13T15:05:31Z 2013-09-13T15:05:31Z 2013-09 2013-09-10 2013-09-13
dc.description.abstract I examined patterns of variation in queen dispersal state and Wolbachia infection in Malagasy ants. My first study compared intraspecific genetic divergence between reproductive dispersal states. Using calculations of isolation by distance (IBD), all species with ergatoid (wingless) queens exhibited IBD as a result of short distance dispersal. The majority of species possessing alate (winged) queens also exhibited IBD despite their ability to travel farther distances. Alate body size was hypothesized to influence IBD, but this was not supported and requires further investigation. My second study investigated the prevalence of Wolbachia, a genus of endosymbiotic bacteria, in ants. Overall, 61.67% of species were infected and no correlation was observed between infection and ant queen dispersal state. Furthermore, DNA extracted from somatic tissue did not underestimate Wolbachia detection as was previously thought. Dispersal and Wolbachia infection influence reproductive outcomes in ants and are important factors for future investigations of genetic diversity. en_US
dc.description.sponsorship Field work in this project was supported by a National Geographic grant (no. 8429-08) and a National Science Foundation grant (no. DEB-0072713, DEB-0344731 to BLF and DEB- 0842395 to BLF and MAS). Research was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery and Research Tools and Instruments Grants and a Leaders Opportunity Fund (LOR) from the Canada Foundation for Innovation (CFI) to MAS. en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivs 2.5 Canada *
dc.rights.uri *
dc.subject ant en_US
dc.subject Formicidae en_US
dc.subject Wolbachia en_US
dc.subject bacterial endosymbiont en_US
dc.subject dispersal en_US
dc.subject infection en_US
dc.subject Madagascar en_US
dc.subject Malagasy en_US
dc.subject alate en_US
dc.subject ergatoid en_US
dc.subject isolation by distance en_US
dc.subject IBD en_US
dc.subject Mantel test en_US
dc.subject COI en_US
dc.subject ant reproductive en_US
dc.subject COI variation en_US
dc.subject Wolbachia infection prevalence en_US
dc.subject Wolbachia infection estimate en_US
dc.title Investigating Patterns of Variation in Reproductive Dispersal and Wolbachia Infection in Malagasy Ants (Hymenoptera: Formicidae) en_US
dc.type Thesis en_US Integrative Biology en_US Master of Science en_US Department of Integrative Biology en_US
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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada