Main content

Latitudinal Effects on Diversity and Body Size: A Case Study with Parasitoid and Parasitic Wasps

Show simple item record

dc.contributor.advisor Smith, M. Alex Eagalle, Thanushi 2014-10-10T17:44:28Z 2014-10-10T17:44:28Z 2014-10 2014-10-07 2014-10-10
dc.description.abstract While greater species diversity exists at tropical latitudes for many groups, certain parasitoid wasp families (i.e. Ichneumonidae) exhibit a peak in species diversity at mid-latitudes (Janzen 1981). Recently, authors have questioned the legitimacy of observed latitudinal trends in species richness, body size and biology for parasitoids, due to geographic and taxonomic sampling biases. I combined DNA barcoding data with ecological variables to quantify parasitoid diversity across a latitudinal gradient (~4.088 - 58.676°N) and to test whether enumerating diversity using DNA supports a mid-latitude peak. I also compared Ichneumonidae and Braconidae body size across the same latitudinal gradient to test whether parasitoid wasps followed the Bergmann’s rule – larger specimens found at higher latitudes. My diversity estimates suggested that the number of species was consistent across latitude, though species found at higher latitudes were more closely related to each other. Body size, specifically hind tibia length, exhibited converse-Bergmann clines. en_US
dc.description.sponsorship Northern Scientific Training Program, Northern Research Fund,Nouragues Travel Grants Program 2011, Shaw Woods Outdoor Education Centre and Parks Canada for their support of the BIObus program (NAP-2008-1636) en_US
dc.language.iso en en_US
dc.subject parasitoid en_US
dc.subject hymenoptera en_US
dc.subject insect body size en_US
dc.subject diversity en_US
dc.subject macroecology en_US
dc.title Latitudinal Effects on Diversity and Body Size: A Case Study with Parasitoid and Parasitic Wasps en_US
dc.type Thesis en_US Integrative Biology en_US Master of Science en_US Department of Integrative Biology en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View
Eagalle_Thanushi_201410_Msc.pdf 7.774Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record