| OCR Text |
Show 12 Effects of and Topography Climate The heavy rainfall conditions. combines with the steep in flows. stream field trip near five cool water flowed around an torrent observed level directly on or the previous factor of districts effect But life on Several tions. This day. crushing in to in fall period. falls five feet to condition same the sierran others with ino This rolling rocks, a than the observed was region. [ and deeper life, sweeping stream Clear, day, after transformed been During through the next area an pleasant mounain a pools and stream had recurrent is of as are rapid yet, recurring many and destroy- continuous workers have recorded hilly ecological recording the of and moun studies in phenomenon and the effect of flooding on pOPQla mayflies studied in England, Harker (lQ53) flooding geatly reduced latArilis, least affected on to in woefully inadequate (Macan, 1963:l7). Of four different effect;. and fall rise great importance found that some twelve hour a the san;le Passing by rise and the Rocky Mountains. alternation of highly detrimntal such streams. its of streams great deal of fluctuation a streams done was in altering habitats. This tainous in region country produces unusual produce muddy, silty water, four individuals away and ing an of twoothe:r occasions flow is heavy of feet six to tropical rain, this intense raging in. boulders. huge to Tela, collecting reminiscent stream very .opography sierran relatively short periods in The, torriter has observed estimated minimum of a this typical of combination with the rainfall stream the of great relief of Te inticate topography the populations 'the populations Rhithrogena semicolorata, of with Baetis the of Heptag,nia rhodani, r educ had t Lorr or . |