The purpose of this report is to highlight lands acquired with 1997 and 2004 voter-approved bond funds, provide a historical record of Pima County’s land conservation efforts and consider how these properties contribute to Pima County’s long-term vision – the Sonoran Desert Conservation Plan. The report also provides a special feature on the evolution of conservation and land use planning in Pima County.

Two additional sets of fact sheets that describe the threatened, endangered, and priority vulnerable species of Pima County. For each plant or animal there is a physical description and full color illustration. The habitat, range, diet, status, and history of each species is also outlined. These fact sheets will be widely distributed through the youth participation program.

Fact sheets that describe the threatened, endangered and priority vulnerable species of Pima County. For each plant or animal there is a physical description and full color illustration. The habitat, range, diet, status, and history of each species is also outlined. These fact sheets will be widely distributed through the youth participation program.

Certain concepts related to the environment, particularly the conservation of biological and cultural resources, have been integrated into the Comprehensive Land Use Plan of Pima County. The attached cost model has been prepared to frame the issue of the estimated cost of Endangered Species Act compliance under the present planning model.

Demonstrates that an effort to protect only listed species would lead to a reserve that was closer to the urbanizing areas of Tucson, and therefore more expensive. The Listed Species Reserve is also one that makes a call on more non-federal land. By limiting the focus of the reserve to listed species, the broader and long term benefits are lost, and trade-offs of high potential habitat are not based on such comprehensive biological principles.

Species re-establishment is the attempt to establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct in the wild. Pima County and other agencies have proposed to re-establish species at a number of sites. Relevant laws and regulations governing re-establishment efforts are discussed. Case studies illustrate how previous efforts have been conducted and how the populations have fared.