Search Constraints

Start Over
Filtering by: Committee Member Obermiller, Fred Remove constraint Committee Member: Obermiller, Fred Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

Search Results

  • Chemical signaling and pheromone evolution in plethodontid salamanders

    Creator:
    Palmer, Catherine Anne
    Abstract:
    My dissertation focuses on the evolutionary forces that have shaped the chemical signaling system of plethodontid salamanders. Pheromones mediate two phases of plethodontid reproduction: mate attraction prior to courtship and female persuasion during courtship. Substrate-borne chemical signals are believed to play an important role in mate attraction for these animals....
    Resource Type:
    Dissertation
    Full Text:
    also goes out to my committee members, Dede Olson, Andy Blaustein and Fred Obermiller, for tolerating

  • Effects of lactofen herbicide on cellular uptake of glyphosate herbicide in malva parviflora L.

    Creator:
    Wells, Barbara Heard
    Abstract:
    Time-course growth chamber studies were conducted on little mallow (Malva parviflora L.) to determine whether sublethal doses of lactofen (1'-(carboethoxy)ethyl-5-[2-chloro-4-(trifluoromethyl) phenoxy]-2- nitrobenzoate) would enhance uptake of glyphosate (N'-(phosphonomethyl) glycine) by altering membrane permeability. Lactofen-induced membrane peroxidation was determined by harvesting leaf discs, measuring stress ethylene evolution, and recording increases in...
    Resource Type:
    Dissertation
    Full Text:
    . Glenn Fischer, Dr. Fred Obermiller, and Dr. Tony Chen, for their time and support. Special appreciation

  • Growth characteristics and site potentials of perennial grass species

    Creator:
    Borman, Michael M.
    Abstract:
    In this study I assessed the potentials of selected, established perennial grasses to maintain site occupancy in the foothills ecosystem of the Rogue River Valley of southwest Oregon which is currently dominated by a variety of annual plants. The first evaluation compared growth curves of the perennial grasses and contrasted...
    Resource Type:
    Dissertation
    Full Text:
    suggestions with respect to experimental design and focus. Dr. Fred Obermiller has become a friend as well