This dissertation describes arthropod responses to and effects on decay processes in
ponderosa pine, a dominant forest canopy tree in northern California. We used both
descriptive and experimental field techniques to establish how arthropod assemblages
depend on and are important to the disintegration of woody structures in forests of this...
Members of the tribe Sabethini (Diptera: Culicidae) oviposit and develop in phytotelmata (plant-held waters) and are primarily distributed in a pantropical pattern. Recent cladistic studies have demonstrated that while the tribe is monophyletic, three of its 13 genera are not. The genus Wyeomyia is particularly problematic and debate among culicidologists...
The family Bibionidae has a worldwide distribution and includes
approximately 700 species in eight extant genera. Recent studies have not produced
compelling evidence supporting Bibionidae as a monophyletic group or identified the
sister group to bibionids. Therefore, the purpose of this study is to examine the
classification and evolution of...
The phantom midges (Diptera: Chaoboridae) are a relatively small fly family
composed of 50 extant species in six genera. Larvae are of interest to limnologists and
ecologists because of their tolerance to toxicants, predatory avoidance strategies, and
the role chaoborids play in zooplankton community dynamics. Relative to
mosquitoes, systematists have...
Many Hymenoptera, with their painful stings and noxious chemical defenses,
exhibit bright aposematic warning color patterns and are the most frequently
mimicked group of organisms. Such aposematic color patterns are found in parasitic
wasps of the Neotropical Compsobracon group (Braconidae). Many members of this
group exhibit color patterns similar to...
This research examines two of parameters of vectorial capacity for mosquitoes associated with catch basins in Corvallis, Oregon. The parameters of interest were determining 1) abundance of the mosquito species associated with the catch basins and 2) feeding patterns of local mosquito species. Three species of mosquitoes were collected from...