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42765-Thumbnail Image.png
Created1999-11
Description

The pygmy-owl was listed as endangered in 1997, but notice of the potential listing dates back to 1989. This paper provides a report on pygmy-owl research and rulings, evaluates whether the efforts of the community are leading to the recovery, downlisting and delisting of the pygmy-owl, and concludes that with

The pygmy-owl was listed as endangered in 1997, but notice of the potential listing dates back to 1989. This paper provides a report on pygmy-owl research and rulings, evaluates whether the efforts of the community are leading to the recovery, downlisting and delisting of the pygmy-owl, and concludes that with the exception of valuable in-kind services of the Arizona Game and Fish Department pygmy-owl biologist, meaningful financial support for research and conservation planning efforts has been limited to federal and County contributions.

42759-Thumbnail Image.png
Created2001-01
Description

Mr. Proudfoot, the leading pygmy-owl biologist in the United States, has worked for the last two years to gather and analyze the data that allows us to address issues regarding the genetic viability of ferruginous pygmy-owls in Arizona and to establish a framework for future management efforts. The two major

Mr. Proudfoot, the leading pygmy-owl biologist in the United States, has worked for the last two years to gather and analyze the data that allows us to address issues regarding the genetic viability of ferruginous pygmy-owls in Arizona and to establish a framework for future management efforts. The two major questions addressed are (1) do populations of concern lack genetic variation relative to putative healthy populations, and (2) how unique are geographically distinct populations within a species of special concern?

42646-Thumbnail Image.jpg
Created2001-03
Description

Provides a brief review of the rules, listing history, and biological issues relevant to the status and protection of the pygmy-owl in Pima County. Land use in unincorporated northwest Pima County is analyzed to determine existing commitments and conservation opportunities, and in order to begin to answer the question of

Provides a brief review of the rules, listing history, and biological issues relevant to the status and protection of the pygmy-owl in Pima County. Land use in unincorporated northwest Pima County is analyzed to determine existing commitments and conservation opportunities, and in order to begin to answer the question of whether a general biological goal of conserving 80 percent of the pygmy-owl's habitat can be achieved.

42645-Thumbnail Image.jpg
Created2001-03
Description

A primer on the impacts of recreational activities and types of activities allowed under the current program mandates and management plans of public land entities.

42697-Thumbnail Image.jpg
Created1999
Description

The Arizona population of the cactus ferruginous pygmy-owl was listed as an endangered species under the Endangered Species Act in 1997. Historical records and recent surveys definitely show a decline of species. There is a wealth of historical information out there and it still trickles in every day.

42696-Thumbnail Image.jpg
Created1999
Description

The historical range of the ferruginous pygmy-owl included areas of southern Arizona, southern Texas extending south along both coasts in Mexico, through Central America into the southernmost population in Argentina. However, over the past 150 years urban and agricultural expansion within the United States has reduced its population to a

The historical range of the ferruginous pygmy-owl included areas of southern Arizona, southern Texas extending south along both coasts in Mexico, through Central America into the southernmost population in Argentina. However, over the past 150 years urban and agricultural expansion within the United States has reduced its population to a few isolated pockets of uncertain stability.

42695-Thumbnail Image.jpg
Created1999
Description

Most of the owls until just the last couple of years have been found in residential areas in northwest Tucson. It take a lot of cooperation on the parts of private residents to help get the work done. These are incredible little birds that fill an interesting role in the

Most of the owls until just the last couple of years have been found in residential areas in northwest Tucson. It take a lot of cooperation on the parts of private residents to help get the work done. These are incredible little birds that fill an interesting role in the environment since they are more diurnal versus nocturnal. Our objective is to gather as much information as fast as possible to feed into the process to make this County plan based on the best available science that we have.

42687-Thumbnail Image.jpg
Created1999
Description

The author takes issue with the statement, "Only three percent of the cows are from the West" and discusses all that is involved in raising cows that are then shipped east to graze before slaughter. They forget that they were born and raised out here. The Altar Valley alone produces

The author takes issue with the statement, "Only three percent of the cows are from the West" and discusses all that is involved in raising cows that are then shipped east to graze before slaughter. They forget that they were born and raised out here. The Altar Valley alone produces millions of pounds of beef a year.

42686-Thumbnail Image.jpg
Created1999
Description

We need to look at what is management and how it has changed. What was once considered good practice in farming in some areas is no longer considered good practice because you are losing soil. The same thing is happening in ranching and as we look at the way range

We need to look at what is management and how it has changed. What was once considered good practice in farming in some areas is no longer considered good practice because you are losing soil. The same thing is happening in ranching and as we look at the way range management has changed in the last 30 years, it is really dramatic in what the goals and objectives are of those people that are on the land is to stay on the land.

42685-Thumbnail Image.jpg
Created1999
Description

The Santa Rita Ranches operate in cooperation with the Santa Rita Experimental Range located to the west of the Santa Rita Mountains, in the upper Santa Cruz Valley. It was established in 1903 and is recognized as a principal site for research on the improvement and management of semiarid grasslands

The Santa Rita Ranches operate in cooperation with the Santa Rita Experimental Range located to the west of the Santa Rita Mountains, in the upper Santa Cruz Valley. It was established in 1903 and is recognized as a principal site for research on the improvement and management of semiarid grasslands in the Southwest.