One of the dominant tree species in our Colorado Rocky Mountain subalpine forests is the spruce. A spruce is an evergreen tree or conifer belonging to genus Picea and there are about 35 species ...

Two major spruces are found in the western forests of the U.S. Engelmann spruce (Picea engelmannii) is found throughout the Rocky Mountains, from Alberta to Arizona. It is named after George Englemann ...

Hybrid zones provide an opportunity to study the effects of selection and gene flow in natural settings. We employed nuclear microsatellites (single sequence repeat (SSR)) and candidate gene ...

Banner image: A forest in the San Juan range of the Rocky Mountains, with dead Engelmann spruce trees alongside live aspen trees. (Credit: Robert Andrus) Bark beetle outbreaks and wildfire alone are ...

Two major spruces are found in the western forests of the United States. Engelmann spruce (Picea engelmannii) is found throughout the Rocky Mountains, from Alberta to Arizona. It’s named after George ...

He practiced medicine by day and pursued botany by night, the one to pay the bills the other to fulfill a passion. In George Engelmann’s day a person could starve as a botanist, but he couldn’t make a ...

Bryan Hankinson, a fall 2014 CU-Boulder student who graduated magna cum laude, developed hishonors thesis by investigating the relationship between an increase in spruce bark beetle population and a ...