May 22, 2018
Edition Topics

  1. Message from Dr. Silvertooth
  2. Today's Q&A with Dr. Silvertooth
  3. WELD Planning Committee
  4. Congratulations - Navajo County Cooperative Extension
  5. Dr. Shirley Jo Taylor
  6. New Publications
Photo of Dr. Silvertooth

Message from the Associate Dean and Extension Director

The Cooperative Extension System (CES) is a unique element within the University of Arizona. The CES has a mission to conduct applied research and provide educational materials and opportunities to stakeholders covering a broad range of topics from the social, physical, and biological sciences to improve the lives of individuals, families, communities, the environment, and the economy. 

The process of bringing science to bear on practical problems was one of the fundamental objectives in the original formation of land grant universities.  All of us in the CES share a common purpose to build on our core strength of using science to solve practical problems and make a positive difference in our world. 

In the CES, I appreciate all the highly motivated professionals in the organization who are collectively working to deliver on our mission and put science to work to improves the lives and economic wellbeing of stakeholders in Arizona and beyond.    

Tune in for Today's Live Q & A Webinar with Dr. Jeff Silvertooth

Tune into today's Live Q & A webinar – where you can submit your questions *live* via ‘Go To Meeting’.

What: Dr. Jeff Silvertooth addresses Extension issues & answers questions

When: TODAY: Tuesday, May 22nd, 1:30pm-2:30pm

Where: Your computer

Register for the event by clicking: HERE

Pre-submit your questions:

Western Extension Leadership Development (WELD) Planning Committee Representative
The WELD Planning Committee is seeking an Arizona Extension representative. The planning committee will start making arrangements for WELD X in August, which will involve a cohort of about 25 interns from Western land-grant universities. The responsibility of the WELD representative is to participate in the monthly planning calls (generally the second Tuesday of the month at 11:00 or 12:00); attend the training seminars 1 and 2, which are four-day training sessions (the first usually held in February/March and the second held in May/June of the following year); and take on one or two tasks such as helping with evaluation, organizing book reviews, facilitating a workshop, or identifying speakers. This is a great opportunity for those interested in leadership. Preference will be given to Extension specialists or agents who have participated in WELD (however, participation in WELD is not a prerequisite to serving). If you are interested or would like more information, you are welcome to contact Dan McDonald and visit the WELD web site at:

Civic Partnership of the Year Award - Navajo County

Cooperative Extension, Navajo County was awarded “Civic Partnership of the Year” from the Holbrook School District !!

This is in recognition of work done through the Supplemental Nutrition Assistance program, bringing gardening and nutrition education to the schools, support to the Summer Food programs, and joining with schools in their special community events. 
Pictured: Members of the Holbrook School District and Margine Bawden (2) & LaVerne Vinyard (3)

Dr. Shirley Jo Taylor

It is with a heavy heart that we let everyone know of the death of Dr. Shirley Jo Taylor, alumni, emeritus faculty, and friend of the Norton School. Shirley Jo was killed in a tragic seven car accident in Tucson on Wednesday, May 16. A service to celebrate Shirley Jo’s life is planned for Friday, June 1, at 2:00 pm at Trinity Presbyterian Church, 400 E. University, Tucson, AZ. In lieu of flowers, the family prefers donations in her name, to organizations including the Norton School.  For more information

In November of last year, the Norton School of Family and Consumer Sciences Council of Alumni and Friends honored Shirley Jo for her service and commitment to the University of Arizona. Shirley Jo earned her bachelor’s, master’s, and doctorate degrees from the U of A, and served as the State 4-H Extension Specialist from 1980 until her retirement in 2000. The Council, with the help of Robert Lanza in the Norton School, produced a video as a tribute to Shirley Jo:  

New Extension Publications

Understanding Ecological Sites
Andrew Brischke, Ashely Hall, Kim McReynolds

Today, land managers are challenged with synthesizing an overwhelming amount of scientific information concerning soils, hydrology, ecology, management, etc. Discrete and arbitrary land ownership boundaries with differences in regulations (or lack of regulations) will often dictate the management goals and objectives for our rangelands (Table 1). Adding to this complexity, natural systems seldom have distinct boundaries with respect to either space or time; therefore, managing landscapes have a certain amount of variability and uncertainty. Ecological sites are a conceptual landscape classification system used to interpret potential across the landscape. The fundamental assumption of ecological sites is that landscapes can be grouped with sufficient precision to increase the probability of success of site-specific predictions, decisions, and management actions (USDA-NRCS, 2011). Ecological sites incorporate abiotic and biotic environmental factors such as climate, soils and landform, hydrology, vegetation, and natural disturbance regimes that together define the site. Each ecological site is identified, differentiated, and described based on the relationships among these environmental factors and how they influence plant community composition and other environmental processes. Publication Number: az1766-2018

Edward Franklin 

Solar photovoltaic (PV) energy systems are made up of different components. Each component has a specific role. The type of component in the system depends on the type of system and the purpose. For example, a simple PV-direct system is composed of a solar module or array (two or more modules wired together) and the load (energy-using device) it powers. The most common loads are submersible waterpumps, and ventilation fans. A solar energy system produces direct current (DC). This is electricity which travels in one direction. A stand-alone system with energy storage (a battery) will have more components than a PV-direct system. This fact sheet will present the different solar PV system components and describe their use in the different types of solar PV systems. Publication Number: AZ1742-2018

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