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5 <br /> higher incidence of aborted fruits. Parasitization and resulting fruit abortion can severely <br /> reduce the size of, or eliminate a population. <br /> The reproductive strategy of L. bradshawii together with current habitat conditions and <br /> environmental stressors, such as drought and parasitism, may limit the survival and <br /> recovery of the populations. All currently known sites are relatively disjunct, separated <br /> by agricultural or urban development, substantial distance, and/or topography. Most sites <br /> also have relatively few plants and/or are small in area. Isolation, low seed dispersal, and <br /> selling, combined, could promote inbreeding, limit gene flow and decrease the <br /> reproductive capacity of L. bradshawii. <br /> Site specific <br /> The conservation area is primarily used for recreational purposes. Therefore, <br /> management of the conservation area has focused on recreational uses. Grassy areas, <br /> including wet prairie habitat, are often mowed. Mowing may have both beneficial and <br /> adverse affects on L. bradshawii and other native plants. Although regular mowing may <br /> prevent succession, native grasses and forbs may be adversely affected when mowing is <br /> conducted before seeds have set in late summer. At times, early mowing may h ve <br /> reduced seed production in the Upper Amazon Basin. <br /> Vehicle and pedestrian traffic may adversely affect L. bradsha • in the conservation <br /> areas. Damage may be most substantial after flowers have rmed but before seeds have <br /> matured. Impacts of this type have been noted in Amazon. For example, population <br /> impacts and habitat fragmentation from construction of Amazon Parkway may have <br /> caused the loss of individuals but the extent of the impacts are not known because of the <br /> lack of complete surveys at the time. Public education may also increase awareness of <br /> the plant and its habitat within the Upper Amazon Basin. <br /> As previously described, isolation and the cumulative loss of habitat continue to threaten <br /> L. bradshawii. The Recovery Plan identifies the tasks necessary to downlist the plant. <br /> Several of these tasks relate to the establishment of management areas within four <br /> identified recovery areas: North Central Willamette Valley, Central Willamette Valley, <br /> Southeastern Willamette Valley, and West Eugene. Within these four areas and using <br /> information on extant locations, ownership, and willing landowners, ten management <br /> areas were to be selected. Four within the West Eugene Area, which encompasses the <br /> Upper Amazon Basin. At the tim the Recovery Plan was written, the extent of the <br /> population at Amazon Park was on thought to be 750 flowering plants. However, with <br /> the estimated occurrence of over 10 00 p is at Amazon Park and an unknown number <br /> along Amazon Creek on school dis ict prope y, the Upper Amazon Basin may be more <br /> important than was anticipated. <br /> \ Le' cc\.0 ‘NCI <br />