In late summer and fall, many migratory birds journey south from the North American Great Plains to spend the winter in locations with greater food availability. As spring returns, a combination of genetics and environmental ...

Since the early 1970s, the United States has grown increasingly reliant on the criminal justice system to manage a wide array of social problems. Aggressive drug control policies and an over-reliance on imprisonment helped ...

The soybean cyst nematode (Heterodera glycines) (SCN) is an important pathogen of soybean in the United States. Annual yield losses from SCN are estimated to be over $2 billion worldwide. However, SCN virulence or the ...

This thesis explores the development of Derby, Kansas, from the arrival of its first settlers in 1869 through the early 1970s. During its first seventy-five years, Derby never grew beyond its origins as a tiny trade center ...

Interest has grown regarding management options to improve and stabilize dryland corn production (Zea mays L.) in challenging environments. Grain sorghum (Sorghum bicolor L.) has been documented to produce more consistent ...

The zebra mussel is an invasive bivalve that was first confirmed in Kansas in 2003, and has decreased zooplankton abundance and altered the aquatic community in other areas where it has invaded. However, little is known ...

The North American river otter (Lontra canadensis) was extirpated throughout much of its range but is now recovering in many areas. Consequently, there is a need to determine river otter occupancy and habitat associations. ...

County consolidation and reorganization has been rare in the United States in the last 100 years, and recent literature on county consolidation and reorganization is limited. Still, county consolidation appears to be a ...

In this study, laboratory measurements of ultrasonic frequency P- and S-wave velocities were collected and analyzed from two sets of cores. The first set is from a near surface study in southeastern Kansas, and the second ...

The AASHTO Guide for Design of Pavement Structures is the primary document used by the state highway agencies to design new and rehabilitated highway pavements. Currently the Kansas Department of Transportation (KDOT) ...