20 



On the other hand, if the transplant populations do not persist, 

 then it is possible that transplant ponds were unsuitable for H. 

 aouatilis due to one or more environmental factors. 



All four transplant ponds should be re-surveyed in 1991, and 

 preferably through several more seasons. 



VI. STUDY RECOMMENDATIONS 



During continuation of these studies in 1991, the following goals 

 should be emphasized: 



1.) estimate population size, and percent cover of H. aquatilis 

 within ponds, for 26 populations. 



2.) conduct studies of the pond drying dates for selected 



locations to determine more closely the influence that this 

 factor may have on the abundance of H. aquatilis in the 

 subsequent year. 



3.) monitor the transplant locations (2nd year). 



4.) survey ponds that have suitable habitat in the Lake Five 

 area near West Glacier, Montana. 



5.) continue frequency studies in the five ponds containing line 

 transects. 



