Baa 



UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 1091 



Also Tecbnicsl Bulletin No. 1 of the Agricnltural Experiment Station 

 University of Arizona 



Washington, D. C. 



PROFESSIONAL PAPER 



September 13, 1922 



LIFE HISTORY OF THE KANGAROO RAT 



Dipodomys spectabilis spectabilis Merriam 



BY 



CHARLES T. VORHIES, Entomologist 

 Agricultural Experiment Station, Uniyersity of Arizona; and 



WALTER P. TAYLOR, Assistant Biologist 



Bureau of Biological Survey, U. S. Department 



of Agriculture 



CONTENTS 



Page 



Importance of Rodent Gronps 1 



Identification 3 



Description 5 



Occurrence 7 



Habits 9 



Food and Storage 18 



Pag« 



Burrow Systems, or Dens . . > ■ . . 28 



Commensals and Elnemies 33 



Abundance 36 



Economic Considerations 36 



Summary 38 



Bibliography 40 



WASEDDMCTON 



GOVERNMENT PRINTING OFFICE 



1922 



