Table of Contents 



I. Introduction 1 



II. Study Area 2 



Cenntennial Valley 2 



Centennial Sandhills 2 



III. Methods 5 



Mammals 6 



Birds 7 



Amphibians and Reptiles 7 



Insects 7 



IV. Results 9 



Mammals 9 



Birds 13 



Amphibians and Reptiles 13 



Insects 14 



V. Discussion 16 



VI. Recommendations and Conclusions 18 



Sagebrush Manipulation 19 



Fire 19 



Livestock Grazing 19 



Concluding Remarks 20 



Future Work 20 



VII. Literature Cited : 22 



Figure 1. Centennial Sandhills study area 3 



Figure 2. Photograph of sparsely vegetated blowout 4 



Figure 3. Photograph of stabilized dunes 4 



Figure 4. Photograph of drift fence array 8 



Figure 5. Photograph of a tiger beetle Cicindela formosa 8 



Table 1. Total trapping effort 6 



Table 2. Standard skull measurements from shrews {Sorex) 10 



Table 3. Skulls recovered from raptor pellets 12 



Table 4. Counts of tiger beetles {Cicindela) 15 



Appendix 1 . Global and State Rank Guidelines 



Appendix 2. Small mammal species of special concern from the Centennial Sandhills 



Appendix 3 . Descriptions of trapping locations 



Appendix 4. Small mammals captured on live trap/snap lines 



Appendix 5. Small mammals captured on pitfall trap lines 



Appendix 6. Small mammals captured at drift fence arrays 



Appendix 7. Mammal, amphibian, and reptile species documented in the Centennial Sandhills 



Appendix 8. Bird species documented 



Appendix 9. Tiger Beetles and butterflies documented 



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