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Ethen Perkins, Ph.D. <br /> 2410 Monroe, Eugene, <br /> OR 97405 <br /> (503) 345 -3944 <br /> 2 May, 1995 <br /> Bruce Newhouse <br /> State Threatened & Endangered Species Chair <br /> Native Plant Society of Oregon <br /> Dear Bruce, <br /> What follows are a few recommendations which I'd like to share regarding the Amazon Park <br /> population of Lomatium bradshawii (LB) Most of these address possible restoration measures <br /> and further protection of the population. I hope aspects of these can be incorporated in your <br /> report to the City of Eugene Parks and Recreation department. <br /> 1. The largest concentrations of plants are probably both remnants of a larger <br /> population and colonists of the existing suitable habitat. Restoration of lost or <br /> altered habitat should be the highest priority for wetlands restoration in this <br /> park since it would have such beneficial effects on this endangered resource. <br /> Fairly simple measures could be undertaken to increase suitable LB habitat within the confines of <br /> its present distribution. Particularly restoration of hydric top soils and wetter site hydrology which <br /> were removed and drained by scraping and ditching through the center of the area on both the <br /> north and south sides of Amazon Parkway is an obvious measure that could be taken, of course <br /> with great care not to further disturb existing plants, soils or surface water tables. Another <br /> measure would be to remove two mounds of fill which occur on the eastern end of the LB colony <br /> north of the Parkway. Finally, the 24 inch storm sewer which was placed close to the center of the <br /> northern LB colony with deepened feeder ditches is obviously lowering needed water table <br /> levels from core areas of potential habitat in this same area. The maps 1 provided for you earlier <br /> indicate core areas which were ditched, scraped and drained. <br /> 2. The existing LB colony could be better protected with planned buffer areas <br /> relative to its perimeters. Buffer areas are obvious places to begin some habitat <br /> restoration as well, because these areas have a high potential for natural LB <br /> recolonization. The most critical buffer areas to address are those places where other activities <br /> might inadvertently threaten the existing plants. One obvious area is the community garden, <br /> especially those plots which are adjacent to very dense LB concentrations only a few feet east of <br /> the last plots. While we were studying this population, a new fill event occurred within feet of a <br /> dense stand of LB plants from dumping of excess compost and bark mulch that had been carted <br />