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Land-Use And Other Factors Affecting The Distribution Of Aquatic Macroinvertebrates In The Richland Creek Watershed On Walden Ridge In Tennessee, Jack Thomas Pickett
Land-Use And Other Factors Affecting The Distribution Of Aquatic Macroinvertebrates In The Richland Creek Watershed On Walden Ridge In Tennessee, Jack Thomas Pickett
Masters Theses
In this study aquatic invertebrates were sampled in riffle habitats of the 4 branches of Richland Creek on Walden Ridge, Tennessee (1800 feet elevation). The 4 branches have low-gradient upper portions on the ridge top and high-gradient lower portions in the canyons that descend the ridge. Pine plantations (pinus taeda) cover about 33% of the watershed, with the coverage of the 4 branch creeks varying from 6% to 90%. The pH and total alkalinity of the 4 branch creeks were found to be inversely correlated with the amount of pine plantation coverage of the watersheds of the creeks, …
Alarm Calls Affect Foraging Behavior In Eastern Chipmunks (Tamias Striatus), Jessica K. Baack
Alarm Calls Affect Foraging Behavior In Eastern Chipmunks (Tamias Striatus), Jessica K. Baack
Masters Theses
I used playback experiments to test whether alarm calls affected the foraging behavior of Eastern chipmunks (Tamias striatus). I subjected chipmunks, foraging at artificial feeding stations, to three playback treatments (silent, control noise, and alarm call) and examined changes in vigilant and foraging behavior. Chipmunks responded to alarm calls with a greater degree and duration of vigilant behavior, such as look-ups and alert postures. Chipmunks also ran a shorter distance to cover, ran more directly to cover, and took longer to re-emerge from the burrow after hearing an alarm call. Alarm calls caused individuals to spend more time …