63 



lack of inter- and intrapopulation genetic variation, and 

 oOTitinuing habitat eilteration in major portions of its extant 

 range. 



B. Rsocnnendaticns to other U.S. federal agencies. 



1. U.S. Forest Service: Ha>jellia aquatilis is currently 



included on the sensitive (Montana) and watch (Idaho) plant 

 lists in Region 1, and the sensitive list in Region 5. 

 Agency objectives eind policy provide for the management and 

 protection of such species. It is reocnmended that ji. 

 aquatilis be retained on all of these lists. 



C. other status rBocmnendations. 



1. C3cunties and local areas: No need for regulation at county 

 or other local levels of govemnent is appeurent at this 

 tine. 



2. States: The species should be retained on the respective 

 lists of each state in which it is historically or currently 

 known to occur. 



3. Other nations: Not currently pertinent. 



4. Intematicnal Ttade Qonventicn, etc.: None at this time. 



14. Reccmnended critical habitat: Gametic studies indicate that t). 

 aquatilis consists of one uniform genotype throughout its range 

 (Lesica s^ qX. 1988). Ihis lack of genetic veuriation, coupled with 

 the neunrow eoologiczd adaptation of the ^secies, suggests that U- 

 aouatillg is vulnerable to natural anchor artificial environmental 

 changes. Thus, it will be inportant to protect populations throug^xxit 

 as much of the range as possible. Should the species be listed, 

 criticed habitat should be designated in all three states where it is 

 currently extant; if it is rediscovered in Oregon or California, these 

 areas should also be included as critical habitat. 



A. QDncise statanent: Glacial pothole and riverine pond conplexes 

 in the Swan Valley, Lake and Missoula counties, Montana; 

 bottonland habitat in the vicinity of the population along the 

 I^cxise River in Latah County, Idaho; pond conplexes in Spokane 

 County, Washington; and habitat containing the population on the 

 Ridgefield National Wildlife Refuge in Clark County, Washington. 



B. Jjsgal description: The following occurrences conprise the 

 mininum reocnnended criticad habitat: 



Idaho: Harvard (001) 



McMitana: Condon Creek (006, 020-031) 



Lindbergh Lake (001-004, 032-051) 

 lest Creek-Cilly Creek Ftonds (008-017) 

 Swan River Oxbow (005) 



