An assessment of the problems that are presented by non-native and introduced species in maintaining native species and natural systems. Divided into two major sections, the study covers representative ecosystems in Pima County as well as representative species that have a negative impact on native species.

Chronicles some of the changes in the Pima County Zoning Code since 1953 and summarizes the comprehensive plan, the zoning code, and the building codes.

A study on the last five years of rezoning activity in eastern Pima County for the Suburban Ranch Zone, Rural Homestead Zone, and Rural Residential Zone. This indicator of development activity does not include activity in the incorporated areas or the land that was rezoned and often platted.

Summarizes applications placed in the newspaper and mailed directly to Steering Committee members to solicit Land Panel membership. 177 applications were received and compiled. Includes a suggested alternative for selecting Land Panel members.

Provides a thoughtful and timely assessment of how Pima County's practices and policy proposals in land use stand up under the test of nationally recognized principles of smart growth.

A companion to the study issued on July 5, 2000 entitled 'Cactus Ferruginous Pygmy-Owl Investigations in Pima County.' The major objective was to determine whether pygmy-owls chose nest sites or perch trees with characteristics that differ from other available sites within a nesting territory.

The spread of invasive species creates serious environmental problems as well as economic hazards for residents and will hamper implementation of parts of the SDCP.