Vo I. 8, No. 7 
Page 6 
clipped. For slat plots, lengths of ordinary snow fence were suspended horizontally 
I foot above the ground. Vegetation under the snow fence was dipped periodically. 
On stake plots, pieces of 1 3/8-inch lathe were stuck into the ground at intervals 
of approximately 10 inches. Vegetation around the stakes was clipped periodically. 
The pen was checked 5 days a week and the locations of all rabbits noted. Over 
an 8-week period the following numbers of rabbit observations were recorded for 
the cover types tested: grass-18, forbs-43, slats-3, stakes-0. An analysis of 
variance (Table 5) was made to determine the significance of the results. The F 
value for rows is significant at the 90 percent level; that for treatments is 
significant at the 99 percent level. The difference between the number of rabbits 
observed in grass plots and in forb plots is significant at the 90 percent level 
of confidence (t=l-94 at 6 df). 
The rabbits preferred the forb plots to the grass plots, although both 
vegetative types were of approximately the same density and height. 
Table 5- Analysis of variance of rabbit use of cover plots arranged in a Latin- 
square.* 
Source of Variation 
Degrees of Freedom 
Mean Square 
F Value 
Rows 
3 
1-3751 
3-33 
Columns 
3 
0.3889 
0.78 
Treatments 
3 
5.0389 
12.19 
Error 
6 
0.4133 
Total 
15 
S = 0.4546 
* Square root transformation of data. 
