Precipitation occurrence in three winter periods and three
summer periods is examined for two Oregon stations: Seaside and
Squaw Butte. The winter periods are January, February, and the
interval January 15 to February 20. The summer periods are July,
August, and the interval July 10 to August 15. The two...
A mathematical model of the atmosphere in an airshed is developed, which relates pollutant source distributions and intensities
to the volume of air available for dispersion and to pollutant concentrations
or air quality standards. It can be used as a tool for obtaining
an answer to an air resource management...
The study provides the details of the ethology of Megachile rotundata
(Fabricius), and presents preliminary observations on its
foraging and nesting behavior. Development from prepupae to adults
proceeds most rapidly at 32 degrees C., and is retarded when held
at lower and higher temperatures.
Male behavior is distinct from that...
Heterostylum robustum (Osten Sacken) is the principal parasite
of the alkali bee, Nomia melanderi Ckll., one of the most efficient
pollinators of alfalfa in the western United States.
The purpose of the study was to determine the incidence of
parasitism and to investigate the biology of H. robustum.
The fly...
Phospholipids of Tenebrio molitor larvae were
separated on columns of DEAE-cellulose and silicic acid-Hyflo Super Cel. The major phosphatide components were
identified by various analytical procedures.
Phosphatidyl choline was demonstrated to be the
predominant phospholipid with a high percentage of
phosphatidyl ethanolamine. A small amount of inositol-containing
phosphatides were present....
An attempt was made to demonstrate isozymic forms of esterase,
MDH, LDH and GPDH and the variation in enzyme pattern with increasing
age in the thoracic muscle, appendage muscle and hemolymph
of the American cockroach, Periplaneta americana. Sampled specimens
of both sexes were aged one through seven days, two weeks...
The objectives of this study were: a) to obtain and evaluate
equipment for bio-acoustical analysis for this work and for future
work in the analysis of insect sounds, b) to study the acoustical and
sexual behavior of Acheta domesticus L., and c) to determine methods
for analyzing the changes effected...