I have successfully presented my dissertation work and am currently finishing up the revisions for the final submission to the University of Texas at Arlington for the PhD degree. I expect the final dissertation to be available from the university library by July 2015.
The title of the dissertation is: The Spatial Ecology of the Comanche Harvester Ant, Pogonomyrmex comanche (Hymenoptera, Formicidae)
Dr. Esther Betran was the chair of my committee (UTA).
Other committee members were:
Dr. Jonathan Campbell (UTA)
Dr. Paul Chippindale (UTA)
Dr. Sophia Passy (UTA)
and Dr. Walter Tschinkel (FSU)
Here is the slide presentation and the notes which are numbered to correspond to the slides. I have included some of the corrections that came out of the discussion with my committee and otherwise have noted where there are other problems which I am addressing in the revision.
One of my committee members suggested I get more samples for my ant assemblage project. I have added three prairie sites and one woodland.
One prairie and one woodland site are in the Southwest Nature Preserve in Arlington, Texas. The Comanche harvester ant is nesting in this prairie. There are about 50 colonies of Pogonomyrmex comanche. Soil here is mixed but very sandy with some bare ground. Currently working through these samples.
Prairie Site at the Southwest Nature Preserve, Arlington, Texas
The woodland site at the Southwest Nature Preserve, Arlington, Texas
Today I set pitfall traps in the Tandy Hills Prairie and Stratford Prairie in Fort Worth, Texas. Comanche is not found in these sites. The soil here is dark and rocky, more clay and little sand, and no bare ground. I will collect these samples on Tuesday and see what I’ve got.
As part of my study of the spatial ecology of the Comanche harvester ant, I have been mapping colony or nest locations over a number of years. Here is the most recent mapping of a population of this ant in the Southwest Nature Preserve, in Arlington, Texas. I have also mapped this population in 2011 and 2012. There has been no significant change in the population size nor in the colony locations.
Comanche harvester ant colonies in the Southwest Nature Preserve, Arlington, Texas.