Catalog Search Results
Author
Pub. Date
2017.
Description
This guide is intended to assist field personnel in identifying life stages of, and damage caused by, emerald ash borer (EAB) (Agrilus planipennis Fairmaire). This difficult-to-detect insect causes symptoms in ash trees similar to those caused by many other abiotic and biotic causes. When diagnosing ash tree problems, it is important to step back and look at the whole picture as many diagnostic clues can be obtained by analyzing site conditions. Symptoms...
2) Aerial photograph/GIS analysis and field studies of the 15 and 18 mile reach of the Colorado River
Author
Pub. Date
1994.
Description
Surveys of the Colorado River near Grand Junction, Colorado show that populations of Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) are small and continue to decline. A potentially important factor in their decline is a reduction in the amount of available habitat. The fish are most commonly found in habitats of complex channel which may be affected by bank stabilizing activities and regulation of the river flow....