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Habitat-based drivers of arthropod abundance and richness in an intensively farmed agricultural landscape

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dc.contributor.advisor MacDougall, Andrew
dc.contributor.author Dolezal, Aleksandra
dc.date.accessioned 2019-08-01T19:39:24Z
dc.date.available 2019-08-01T19:39:24Z
dc.date.copyright 2019-07
dc.date.created 2019-07-15
dc.date.issued 2019-08-01
dc.identifier.uri http://hdl.handle.net/10214/16782
dc.description.abstract Habitat is critical for sustaining arthropod populations, but its influence in agricultural landscapes where arthropods are declining is unclear. In a heavily farmed area of Ontario, I examined habitat effects on arthropods at two scales: landscape (habitat isolation) and local (farm cover type -crop, prairie, forest). Additional analyses tested differences in arthropod communities among cover types, how prairie addition affects leaf defoliation, whether crop type influences arthropods (soy, corn, orchard, mixed organic), and whether arthropod richness differs between farm and non-farm sites. I found arthropod richness and abundance to be determined locally, via the presence of restored high-quality prairie habitat. Prairie addition did not affect leaf defoliation but influenced the spatial distribution of herbivores in crops. Crop type influenced arthropod groups, especially herbivores, which preferred mixed organic cover. Lastly, farm and non-farm sites revealed similar family-level richness, suggesting that conventional farms can support arthropod biodiversity if habitat is not limiting. en_US
dc.description.sponsorship Tallgrass Ontario, Food from Thought, OMAFRA HQP en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-ShareAlike 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ *
dc.subject biodiversity en_US
dc.subject agriculture en_US
dc.subject arthropod en_US
dc.subject habitat en_US
dc.subject tallgrass prairie en_US
dc.title Habitat-based drivers of arthropod abundance and richness in an intensively farmed agricultural landscape en_US
dc.type Thesis en_US
dc.degree.programme Integrative Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Integrative Biology en_US
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