Matching Items (1,257)
Filtering by

Clear all filters

41283-Thumbnail Image.png
ContributorsDawson, C. D. (Author)
Created1916-04-18
Description

Letter from C. D. Dawson to Carl Hayden urging him to consider the rights of miners and farmers when drawing up the boundaries for the proposed park.

ContributorsArizona PBS Productions (Publisher)
Created2006-02-28
ContributorsArizona PBS Productions (Publisher)
Created1995-03-22
ContributorsArizona PBS Productions (Publisher)
Created1988-11-01
42547-Thumbnail Image.png
Created2010-02-05
Description

While we may view climate change issues as a more global or national problem, our unique Sonoran Desert ecosystem is a recognized global resource; hence climate change is an important consideration in how we manage and protect our fragile desert ecosystem. This discussion is designed to promote local awareness of

While we may view climate change issues as a more global or national problem, our unique Sonoran Desert ecosystem is a recognized global resource; hence climate change is an important consideration in how we manage and protect our fragile desert ecosystem. This discussion is designed to promote local awareness of how climate change may impact our resources.

42548-Thumbnail Image.png
Created2009-08-28
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.

42549-Thumbnail Image.png
Created2009-08-28
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?

42550-Thumbnail Image.png
Created2009-01
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.

42551-Thumbnail Image.png
Created2008-04
Description

Reports on the development of a reconnaissance level numerical groundwater model of the Davidson Canyon and Cienega Creek watersheds. Includes recommendations for data that must be collected prior to completing environmental analyses for the proposed project.

42552-Thumbnail Image.png
Created2008-01-14
Description

Provides a review of eight monitoring efforts in southern Arizona to highlight their accomplishments and to critique their efficacy and overview of important attributes of a monitoring program. This review of projects and successful attributes will provide an assessment framework to better guide the development of the Pima County Ecological

Provides a review of eight monitoring efforts in southern Arizona to highlight their accomplishments and to critique their efficacy and overview of important attributes of a monitoring program. This review of projects and successful attributes will provide an assessment framework to better guide the development of the Pima County Ecological Monitoring Program.