(7) Seven-day cycles in spontaneous activity were found in wild animals (recently trapped Norway rats, chipmunks, ground squirrels, and squirrel monkeys), but not in tame domesticated animals (laboratory Norway rats and hamsters).(6) Movement, home range and density of chipmunk populations were determined by trap mark and recapture techniques on grid study areas.(5) triseriatus feeding on chipmunk blood containing LAC virus neutralizing (N) antibodies and for Ae.(4) The chipmunks were trapped and periodically recaptured in two study areas where 59 chipmunks became infected and developed neutralizing antibody during the summer cycle of virus transmission.

(3) The results demonstrate that meadow-mice, Columbian ground-squirrels, golden-mantled ground-squirrels, chipmunks and snowshoe hares (the latter to a lesser extent), when bitten by infected ticks, respond with rickettsiaemias of sufficient length and degree to infect normal larval D.

(2) To clarify the cause of uncoupling of Ca influx through Ca channels and the contractility of the myocardium in hibernating chipmunks, the electromechanical effects of two different internal Ca store inhibitors, caffeine and ryanodine, and a cardiotonic agent, isoprenaline, were investigated in papillary muscles of hibernating animals.

(1) Mean viremia titers and durations did not differ significantly among chipmunk age-classes.

The common species of the United States is the Tamias striatus.

(n.) A squirrel-like animal of the genus Tamias, sometimes called the striped squirrel, chipping squirrel, ground squirrel, hackee.

Chipmunk vs squirrel pictures