lines (Figure 78). These water bodies concentrated available seeds on their 

 surfaces and then deposited them along the shoreline. 



rr..4^ 



^U^^i^^^X^r-:,:: 







'y •* 



^^i 



?i^' 



^' 



;i^':i 



■'Vi 



-4-5 



Figure 78. Close-up of a concentration of willow seedlings 

 at the shoreline of the Jim River ponded area. 



The erosion, downstream transport, and subsequent deposition of large, 

 intact vegetated organic mats also was found to initiate vegetative recovery 

 of gravel mined sites (Figure 79). However, this process was not overall 

 significant because it most often occurred on a small scale and was not 

 widespread. It most frequently occurred in the larger more dynamic rivers. 

 Most observations of this occurrence were of mats that were believed to have 

 been deposited I or 2 years prior to site visits. In the type of river where 

 they most frequently occurred, they were vulnerable to continued downstream 

 movement during floods. However, in a few locations the root systems of 

 woody species had penetrated the underlying gravels and these mats appeared 

 to be firmly established. 



FAUNAL COMMUNITY CHANGES AT GRAVEL REMOVAL SITES 



Terrestrial fauna either displayed no response to gravel removal opera- 

 tions or displayed one of four different reactions depending upon fauna 



248 



