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- All Subjects: Animal introduction
- All Subjects: Water table
- All Subjects: Wetlands
- All Subjects: Housing policy
- Creators: Pima County (Ariz.). County Administrator's Office
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.
Enhances the discussions of the feasibility of restoring flow paths at Aqua Caliente to a more natural state by providing information which allows us to better understand the wetland system that existed before periods of intervention.
The final version of the report issued in early 2001. County staff responded in writing to clarify misunderstandings in the letter by Tucson Water. Pima County will continue to assess and look for ways to contribute to the protection of the resources in the Tanque Verde area.
Survey results for wetland plant communities of the Agua Caliente Park and nearby La Cebadilla property. The study also documented the presence or absence of Huachuca water umbel, a plant listed as endangered in Pima County. By studying the wetland plants of the La Cebadilla property, and through historic herbarium collections, the biologist found that several plants still present at La Cebadilla were known to be present at the Agua Caliente Ranch at the turn of the century.
In the early 1990s, a study of the Tanque Verde Creek by Dr. Julie Stromberg and others described the relationship between the depth to groundwater and the health of the mesquite woodland habitat in the area. This report revisits the Stromberg study to describe variations in groundwater levels since the report was completed early last decade. They identified around 3,000 acres of riparian vegetation in the Tanque Verde-Agua Caliente shallow groundwater zone.
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.
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.
Describes existing inclusionary housing ordinances and programs, with a focus on those in Montgomery County, Maryland, Fairfax County, Virginia, Santa Fe, New Mexico, and the states of California and New Jersey. Inclusionary housing may be a viable policy proposal as we consider the land use and cost of growth elements of the Pima County Comprehensive Plan.