| Volume 20, No. 4 | December 1988 |
| Paul B. Kannowski, Editor | |
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| TABLE OF CONTENTS | |
| Range Plant Communities of The Central Grassland Research Station in South Central North Dakota | |
| C. L. Lura, W. T. Barker and P. E. Nyren | 117 |
| Seasonal Patterns in Sampling Data for Largemouth Bass and Bluegills in A Northern Great Plains Impoundment | |
| E. A. Bettross and D. W. Willis | 193 |
| Introduction, Establishment, and Dispersal of Western Mosquitofish in Nebraska (Actinopterygii: Poeciliidae) | |
| J. D. Lynch | 203 |
| Observations on The Ecology of Chiggers (Acari: Tromiculidae) From South Dakota | |
| E. R. Eastern and W. J. Wrenn |
217
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| Movements of The Deer Mouse in Response to Prairie Fire | |
| D. W. Kaufman, S. K. Gurtz, and G. A. Kaufman |
225
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| NOTES | |
| Sandhill Cranes Roosting on Ice in Nebraska M. J. Folk |
224 |
| First Confirmed North Dakota Nesting of The Common Poorwill R. A. Royer and M. B. Thompson |
230
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| Hairlessness in A Golden-Mantled Ground Squirrel P. J. DuBowy and V. S. DuBowy |
231
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BOOK REVIEW |
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| Aldo
Leopold: The Land Ethic E. Podoll |
233 |
| Aldo Leopold: The Man S. H. Richards |
234 |
| Rate
Ones in The Canadian Prairie M. G. McKenna, A. J. Duxbury, and R. L. Kreil |
237 |
| INDEX
TO VOLUME 20 |
239 |