Published December 1965. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The mound-building harvester ant, Pogonmyrmex owyheei Cole,
(formerly included in the species occidentals) is widely distributed
on the semi-arid rangeland east of the Cascade mountains in Oregon.
Because of its seed foraging and vegetation clearing habits, this ant
has been considered as a possible competitor with livestock and
wildlife for...
The present investigation was designed to test two major hypotheses
and five sub-hypotheses. The two major hypotheses were:
(1) Parental models influence the shaping of children's responses to
frustration, and (2) There is a positive relation between parental
consistency in responses to frustration and children's imitation of
parental responses. Three...
Statistical data from breeding experiments suggested that a
reciprocal chromosomal translocation had spontaneously occurred in
a line of S. C. White Leghorn fowl. Approximately 50% of the
embryos from matings between suspected translocation heterozygotes
and normal birds died early during incubation. In an effort
to obtain cytological proof of this...
The partitioning of body fluids in the Pacific hagfish was investigated
using several experimental techniques. Direct measurement
of the blood volume was obtained through the simultaneous use
of tagged red blood cells and plasma proteins labeled with Evan's
blue dye. Blood cells obtained from donor animals were incubated
with L-methionin-methyl-C¹⁴...
Four species of euryhaline teleosts (chinook salmon, Oncorhynchus
tshawytscha, Walbaum; staghorn sculpin, Leptocottus armatus,
Girard; starry flounder, Platichthys stellatus, Pallas; shiner perch
Cymatogaster aggregata, Gibbons) were exposed to x-rays. The irradiated
animals were maintained in either of two different environments.
The effects of x-radiation were determined by observing the
percent...
Six species of Cleridae, including Enoclerus spegeus Fabricius,
E. lecontei Wolcott, E. schaefferi (Barr), E. eximius Mannerheim,
Thanasimus undatulus Say, and an undescribed species of Enoclerus,
were found on Douglas-fir in western Oregon. E. sphegeus was the
only clerid of the six species studied which was primarily associated
with the...