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Measuring Effectiveness of Open Space Land Acquisitions in Pima County, Arizona - Progress Report: Sonoran Desert Conservation Plan

Description

This report examines how effectively Pima County’s natural open-space acquisitions have addressed priorities for conserving species’ habitats and landscape features identified in the Sonoran Desert Conservation Plan. The scope of this study is beyond the County's Multi-Species Conservation Plan, which is a subset of the overall Sonoran Desert Conservation Plan.

Contributors

Created

Date Created
2009-08-28

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Habitat Mitigation in the Pima County Multiple Species Conservation Plan: Sonoran Desert Conservation Plan

Description

The purpose of this study is to provide the U.S. Fish & Wildlife Service with an analysis that identifies anticipated impacts to each of the covered species and asks the question: How effectively will the County's mitigation lands include the specific habitats of covered species under the Multi-Species Conservation Plan?

Contributors

Created

Date Created
2009-08-28

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Changes in Pima County Land Cover (1992-2001): Sonoran Desert Conservation Plan

Description

Develops the methods for using the National Land Cover Dataset to report change by jurisdictions and land ownership by utilizing an existing dataset. Local GIS-based measures of development based on tax assessor records do not provide direct measures of habitat loss.

Contributors

Created

Date Created
2009-01

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Suitability Analysis and Representation Goals for Cottonwood-Willow Forest Habitat: Sonoran Desert Conservation Plan

Description

If one species had to be chosen to preserve and restore, perhaps it should be cottonwood. Cottonwood-willow forests, where they exist and are healthy, indicated the presence of a viable riparian area, which is in turn the key to conserving

If one species had to be chosen to preserve and restore, perhaps it should be cottonwood. Cottonwood-willow forests, where they exist and are healthy, indicated the presence of a viable riparian area, which is in turn the key to conserving great proportions of our native species. A reflection of the dire status of our riparian systems is that the Sonoran cottonwood-willow and Sonoran mesquite-cottonwood forests.

Contributors

Created

Date Created
2001-10

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Determining Vulnerable Species Within Pima County, Arizona: Sonoran Desert Conservation Plan

Description

Compiles information on plants and animals that are already recognized by the federal government as imperiled species, species which have been extirpated, and a much larger number of species that are in decline either locally or nationally. Descriptions of status,

Compiles information on plants and animals that are already recognized by the federal government as imperiled species, species which have been extirpated, and a much larger number of species that are in decline either locally or nationally. Descriptions of status, location, distribution, and habitat needs are presented for each species proposed. The report also considers vegetative communities, their history of decline and modification, and recommends priorities for their protection.

Contributors

Created

Date Created
1999-11-19

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Determining Species of Concern Within Pima County, Arizona: Sonoran Desert Conservation Plan

Description

To facilitate discussion about which species might be considered for protection, a series of in-depth interviews were conducted with members of the local science community who have expertise in the areas of birds, fish, invertebrates, mammals, plants and plant communities, and reptiles and amphibians.

Contributors

Created

Date Created
1999-04-29

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Springs in Pima County

Description

Documents the preparation of a geographic information system cover that represents springs in Pima County, discusses characteristics of certain springs in Pima County, and identifies actions needed to improve the conservation of springs and spring habitats.

Contributors

Created

Date Created
2000-05

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Cocio Wash and the Gila Topminnow: Sonoran Desert Conservation Plan

Description

Chronicles how the intention to conserve a relic population of Gila topminnow under current resource conditions is generally insufficient. We have let the resource base degrade too far to expect project and site specific responses to stem losses, much less

Chronicles how the intention to conserve a relic population of Gila topminnow under current resource conditions is generally insufficient. We have let the resource base degrade too far to expect project and site specific responses to stem losses, much less lead to recovery. The Gila topminnow was considered to be among the most common of fishes in the Santa Cruz River system in the early 1940s. Three decades later is was considered endangered; and in another three decades time, its recovery is not foreseeable, given the piecemeal approach to protection efforts.

Contributors

Created

Date Created
2000-04