Harlequin ducks (Histrionicus histrionicus) were observed during
the summers of 1979 and 1980 in Sawmill Bay, northeast Prince William
Sound, Alaska. Harlequins were associated with a short, medium gradient,
non-glacial stream (Stellar Creek) also used by salmon. Although
harlequins nested along Stellar Creek, they apparently did not establish
home ranges...
The photoelectron spectra of a series of halogenated
molecules have been investigated in the gas phase. Both
core-ionization energies and Auger kinetic energies were
measured to probe the nature of the interaction that holds
a core electron to the molecule.
It was found that satellite structure (shake) could be
used...
The purpose of this study was to obtain information about clothing acquisition practices of low-income mothers. An interview questionnaire was designed to obtain information about the clothing sources perceived as available to these women, the sources of clothing used, the sources of information used, the preplanning practices used, and demographic...
Potential problem pests found were Armillaria root disease, pocket gopher, western pine shoot borer, and white pine blister rust. Early detection of problem pests allows management actions to be taken if needed to prevent serious impacts. Unit managers should check the areas periodically and call on pest management specialists to...
Fruit set of sweet cherries was reduced if sprays containing fluoride (sodium or ammonium fluoride or hydrofluoric acid) were applied during anthesis. Sprays applied at other times during the fruit-growing season caused fruit and leaf symptoms, depending on the concentration of fluoride, but no reductions in fruit set. Symptoms of...
The effects of naturally shaded microsites on survival and height growth of natural and planted seedlings were evaluated after an initial shelterwood harvest in the eastern Siskiyou Mountains of southwestern Oregon. After 2 years, the probabilities of survival for planted Douglas-fir (84 percent) and ponderosa pine (56 percent) were significantly...