Populations of mites and.nematodes were monitored on Watershed 10, H. J.
Andrews Forest. A minimum of 50 families and 60 genera of mites are
present, the majority being Cryptostgmata. Population estimates vary
from 5000-350,000 per square meter. Nine categories of nematodes are
present, most belonging to the saprozoic, dorylaimoid, aquatic...
Studies in the lower Lookout Creek-Blue River area have revealed a geomorphic history including glaciation and the development of three alluvial surfaces, presently active alluvial cones and older, deeply dissected cone remnants. Results are based on landform mapping, analysis of the types and distributions of surficial sediments, and the
distribution...
The role of weather in influencing tourist-recreation visitation
to the Oregon coast during the six-month summer season of May
through October has been investigated by this research. In addition,
the normal day-to-day fluctuations in coastal visitation has been
determined.
Based upon the normal visitation, the tourist-recreation season
on Oregon's coast...
The fleshy carpophores of fungi fruiling, on soil and litter were collected from watersheds 2, 3, and 10, IBP sites located in the H.J. Andrews Experimental Forest near Blue River, Oregon (122° W, 44° N). No effort was made to systematize collections: all
carpophores in fresh condition seen were taken....
The teliospore of Tilletia caries germinates to produce a promycelium
with a whorl of primary sporidia at its tip. The time between
emergence of the promycelium and the development of primary sporidia
averaged 2.3 h. Fusion between compatible sporidia occurred within
an additional 3.8 h. Primary sporidia appeared to be...
An investigation was made of the photoelectric emission from
sodium and the alteration in the emission produced by sulfur deposited
onto a sodium surface. Measurements were made at the temperature
of liquid nitrogen for photon energies between 2.0 ev and 4.5 ev. The
sodium was investigated in the form of...
A threestage, differentially pumped ion accelerator is used to produce low energy argon ions, which in turn, are used to bombard the surfaces of plane nickel single crystals. Nickel atoms ejected from the crystals are counted using the radioac tive tracing method. From the analysis of the angular distri butions...