TABLE OF CONTENTS 



Introduction i 



Study Areas 4 



Methods 6 



Results lo 



Benton Lake National Wildlife REFUGE 13 



Mullan Trail Research Natural Area 13 



Charles M. Russell National Wildlife Refuge 15 



Fourth Ridge Research Natural Area 15 



Hell Creek Potential Research Natural Area 17 



Limber Pine Research Natural Area 18 



Manning Corral Prairie Dog Town Research Natural Area 22 



Missouri River Bottomlands Research Natural Area 24 



Prairie Dog Island Research Natural Area 28 



Spring Creek Research Natural Area 30 



Two Calf-Douglas-fir Research Natural Area 33 



York Island Research Natural Area 36 



Lake Mason National Wildlife Refuge 39 



Lake Mason Research Natural Area 39 



Medicine Lake NATIONAL Wildlife Refuge 41 



Big Island Research Natural Area 41 



Brace's Island Research Natural Area 45 



Homestead Research Natural Area 46 



Medicine Lake Sandhills 47 



Tepee Hills Research Natural Area 49 



Red Rock Lakes NATIONAL Wildlife Refuge 53 



Sheep Mountain Research Natural Area 53 



Discussion 57 



Conclusions and Recommendations 59 



Literature Cited 61 



