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UNITED STATES DEPARTMENT OF AGRICULTURE
BULLETIN No. 1091
LIFE HISTORY OF THE KANGAROO RAT
Dipodomys spectabilis spectabilis Merriam
BY
CHARLES T. VORHIES, Entomologist Agricultural Experiment Station, University of Arizona; and
WALTER P. TAYLOR, Assistant Biologist Bureau of Biological Survey, U. S. Department of Agriculture
CONTENTS
WASHINGTON GOVERNMENT PRINTING OFFICE 1922
UNITED STATES DEPARTMENT OF AGRICULTURE
BULLETIN No. 1091
LIFE HISTORY OF THE KANGAROO RAT,
Dipodomys spectabilis spectabilis Merriam.
CONTENTS.
IMPORTANCE OF RODENT GROUPS.
INVESTIGATIONAL METHODS.
IDENTIFICATION.
DESCRIPTION.
GENERAL CHARACTERS.
COLOR.
OIL GLAND.
MEASUREMENTS AND WEIGHTS.
OCCURRENCE.
GENERAL DISTRIBUTION.
HABITAT.
HABITS.
EVIDENCE OF PRESENCE.
Mounds.
Runways and Tracks.
Signals.
Voice.
DAILY AND SEASONAL ACTIVITY.
PUGNACITY AND SOCIABILITY.
SENSE DEVELOPMENTS.
MOVEMENTS AND ATTITUDES.
STORING HABITS.
BREEDING HABITS.
FOOD AND STORAGE.
Den 1.
Den 2.
Den 4.
Den 6.
Den 11.
Den 14.
Den 16.
Den 19.
Den 21.
Den 22.
Den 24.
BURROW SYSTEMS, OR DENS.
COMMENSALS AND ENEMIES.
COMMENSALS.
NATURAL CHECKS.
PARASITES.
ABUNDANCE.
ECONOMIC CONSIDERATIONS.
CONTROL.
SUMMARY.
BIBLIOGRAPHY.
FOOTNOTES:
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