Impact of attack by gallmakers on their ancestral and novel plant hosts in a goldenrod-insect system
| dc.contributor.advisor | Heard, Stephen | |
| dc.contributor.author | Shibel, Zoryana | |
| dc.date.accessioned | 2023-03-01T16:39:19Z | |
| dc.date.available | 2023-03-01T16:39:19Z | |
| dc.date.issued | 2016 | |
| dc.date.updated | 2016-05-03T00:00:00Z | |
| dc.description.abstract | Through coevolution reduced virulence and increased tolerance may evolve. Novel plant hosts may experience greater impact from herbivores compared to ancestral hosts. I tested this using Solidago altissima and Solidago gigantea as host plants and Eurosta solidaginis and Rhopalomyia solidaginis as gallmakers. In 4 out of 8 data sets, both gallmakers significantly reduced the aboveground biomass (by about 30%) in the novel host. (Overall, 7 out of 8 data sets showed a trend in the expected direction.). Coupled with previous data sets from Heard and Kitts 2012 on Gnorimoschema gallaesolidaginis, 6 out of 10 data show significant support for this coevolutionary hypothesis (9 out of 10 in the expected direction; sign test P = 0.011). In addition to herbivory, plants may also experience abiotic stressors. By inducing water stress and clipping on S. altissima and S. gigantea I found that S. altissima experiences synergistically greater damage when two stressors are present. | |
| dc.description.copyright | © Zoryana Shibel, 2016 | |
| dc.description.note | Degree Name mislabeled as "Masters of Biology" on the title page. | |
| dc.format | text/xml | |
| dc.format.extent | vii, 95 pages | |
| dc.format.medium | electronic | |
| dc.identifier.uri | https://unbscholar.lib.unb.ca/handle/1882/14277 | |
| dc.language.iso | en_CA | |
| dc.publisher | University of New Brunswick | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.subject.discipline | Biology | |
| dc.title | Impact of attack by gallmakers on their ancestral and novel plant hosts in a goldenrod-insect system | |
| dc.type | master thesis | |
| thesis.degree.discipline | Biology | |
| thesis.degree.fullname | Master of Science | |
| thesis.degree.grantor | University of New Brunswick | |
| thesis.degree.level | masters | |
| thesis.degree.name | M.Sc. |
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