Posts Tagged ‘Pima County’
Join us this week to remove old fencing and improve wildlife connectivity between the Tucson Mountains and the Tohono O’odham Nation!
This past December, over 65 volunteers came together one morning to remove three miles of old fencing, including three tons of fence posts and wire fencing, from an area in Avra Valley west of the Tucson Mountains. Removing this fencing is important to improve the critical wildlife linkage areas between Tucson Mountain Park, Saguaro National Park, Ironwood Forest National Monument, and the Tohono O’odham Nation. And now this collaborative project is moving forward with another opportunity to pitch in and remove even more fencing!
When: Thursday, Friday, and Saturday – March 10, 11, and 12
Time: 8am-12pm, 12pm lunch (will be provided), Afternoon flexible
Where: Avra Valley area near Three Points (more detailed instructions on exactly where to meet will be sent out to volunteers after they sign up)
What to bring: Water bottle, work gloves, sturdy shoes, sun hat, etc. (again, more details to follow)
How to sign up: Head over to this GoogleForm to sign up
According to Don Swann, a biologist at Saguaro National Park, “Many studies have shown that barbed wire fences can stop large animals, change their movement patterns, and keep them away from water and food sources they need to survive. Animals can also be killed trying to jump over a barbed wire fence if they become entangled and are not able to free themselves.”
You can sign up for one, two, or all three days! All you need to do is sign up through our online form.
To see a slideshow and learn more about the December 2021 event and what’s in store for the March 2022 event, head over to this recent blog post on our website.
Questions? Feel free to reach out to CSDP Executive Director Carolyn Campbell at Carolyn.Campbell@
In January 2022, a group of people from Arizona Game and Fish Department, Arizona Department of Transportation, the Tohono O’odham Nation, and the Coalition for Sonoran Desert Protection conducted a scouting field trip to finalize the locations of two new wildlife bridges on SR86 near Kitt Peak. These bridges will complement two existing wildlife underpasses built nearby in 2013-2014. During the trip, the attendees also visited the underpasses and associated wildlife fencing and were able to identify ongoing maintenance tasks so these underpasses continue providing a safe crossing location for wildlife for many years to come.
The SR86 wildlife bridges will be built to attract local bighorn sheep and other wildlife so they can safely cross between the Baboquivari Mountains to the south and mountain ranges to the north. The Regional Transportation Authority is funding these crossings, under a plan approved by voters in 2006 from $45 million allocated for wildlife linkage infrastructure projects.
Check out some photos of the field trip below.
On December 11, 2021, a group of local organizations and state/federal agencies came together to celebrate National Public Lands Day by holding a Fence Removal Volunteer Day in Avra Valley. It was a wonderfully cool day with volunteers in high spirits to accomplish something tangible and positive for wildlife.
A few fun stats from this great event:
- Over 65 volunteers, a group from the American Conservation Experience (ACE) program, and staff from Arizona Game and Fish Department and the National Park Service joined together for the project.
- 3 miles of fence were removed from the landscape in one morning.
- 3 tons of metal, including fence posts and wire fencing, were hauled away.
This is a fantastic start to improving the permeability of the landscape for wildlife movement between the Tucson Mountains, Ironwood Forest National Monument, Pima County open space lands, and more. And a big thanks to the Coalition volunteers that came out and volunteered their time – we are so thankful for you.
This is the first of a few Fence Removal Volunteer Days – we plan to hold one to two more this winter and spring so keep your eye out for more details. We’d love to have you join in on the next event!
Thank you to all the organizations that helped make this event possible, including Friends of Ironwood Forest, Coalition for Sonoran Desert Protection, Saguaro National Park/National Park Service, Arizona Game and Fish Department, American Conservation Experience, Pima County, U.S. Bureau of Reclamation, and the Mule Deer Foundation.
Photos below are courtesy Carolyn Campbell and Lee Pagni.
By Janine Spencer-Glasson, Friends of El Rio Preserve
The Santa Cruz River serves as an important resource for migrating birds in the southwestern United States. Migrating birds depend upon riparian habitat more than any other type of habitat in Arizona. There are several links along the chain of stopovers for migrating birds on the Santa Cruz River. One of them is the El Rio Preserve in Marana. To date, over 240 species of birds have been identified at the Preserve (go to ebird.org and search in Hotspots for El Rio Open Space Preserve to view the complete list of birds).
El Rio Preserve is a 104-acre property located along the western bank of the Santa Cruz River. The site has a long history of human use; it is located at the northern end of the Los Morteros Archaeological site and was occupied from approximately 850-1,300 AD. In the 1960’s, a gravel pit was created there to provide material to build Interstate-10. Later, it was used as a disc golf course. In addition to the Preserve’s role in providing bird habitat, the Preserve also serves as a link between the Tortolita Mountains and the Tucson Mountains, allowing wildlife to access water and move about.
This site has flooded periodically over the years, and water tends to remain ponded for six months or more, with periods where it is completely dry. This has created intermittent habitat for birds that need a site with surface water. Throughout this time, birders knew the spot as the “Coachline Gravel Pit.” Occasionally some interesting avian species would appear, including blue grosbeak, grey hawk, peregrine falcon, white-faced ibis, osprey, belted kingfisher, Bell’s vireo, Inca dove, and hooded orioles, to name a few.
During a major rainstorm in 2014, the soil berm was breached between the gravel pit and the Santa Cruz River, and water filled the property almost completely, creating a beautiful lake and much buzz among people familiar with the area. Rare birds showed up, like the white-fronted goose, a white pelican, and plenty of ducks. Birders flocked to see the new lake’s avian inhabitants, and the parking area often hosted out-of-state vehicles. This prompted the Town of Marana to take a new look at what was now called the El Rio Preserve.
There were many problems at the Preserve, however. During storm events, invasive weed seeds and huge patches of trash would flow in and settle in the basin. Mosquitoes would breed where water remained under spots of dense vegetation. Much planning and work was needed to create a riparian site that would be an amenity to the neighborhood, while maintaining a natural state for birds, wildlife, and nature-lovers.
Improvements at El Rio Preserve have been a collaborative effort. The Town of Marana dedicated funding for design and implementation of riparian restoration. The Arizona State Forestry Department researched the area and wrote a comprehensive Forestry Management Plan that focuses on invasive species. Pima County and Marana extended the Loop Trail and constructed a parking lot with a ramada. Marana worked with a University of Arizona student, Alex Stoicof, to create a community survey, which identified riparian restoration as the top priority for the Preserve. She then designed a preliminary landscape plan. Marana has constructed a viewing deck, a water fountain, toilet, and interpretive signs, and planted native landscaping
Environmental education is an important element of the El Rio Preserve. Michael Bogan, Professor at the University of Arizona, has led a damselfly and dragonfly viewing and provided information and photos for an interpretive sign at the Preserve. The Town is coordinating with the Marana Unified School District and classes of students have toured the site and focused on science relevant to their studies. Boy Scouts have volunteered, putting up bee boards and bird boxes for kestrels and brown-crested flycatchers.
Tucson Audubon Society supplied plants and members helped plant a pollinator garden at the entrance to the Preserve. Bat Conservation International provided agaves and helped volunteers plant them. This spring, the pollinator garden was in full bloom, with butterflies, hummingbirds, and bees enjoying the gaillardia, penstemon, native salvias, desert marigolds, and other flowers.
The Friends of El Rio Preserve group has been formed to include neighbors and a diverse group of members from other environmental organizations. Friends of El Rio Preserve’s mission is “to promote wildlife habitat and connectivity in this beautiful, diverse natural area, so residents of all ages and interests can enjoy this urban oasis,” and we have planted pollinators, helped with weeding, and provided input on design elements and on interpretive signs. If you would like to learn more about Friends of El Rio Preserve, you can find us on Facebook or Instagram. You can become a Friend if you are willing to roll up your sleeves, join the team, and make a vital contribution to enhancing and protecting El Rio Preserve; contact Kathy at email@example.com or Janine at firstname.lastname@example.org.
It has been wonderful to see so many organizations and volunteers work to create a beautiful spot for people and birds!
Currently, more improvements are underway. Pima County Flood Control is in the early stages of constructing bank protection which will cost nearly $1.9 M (nesting bird and archaeological surveys have been completed prior to ground disturbance). The bank protection is designed to allow overflow connectivity with the Santa Cruz River during large rain events. Bank protection should be completed by this fall. There is currently no water flowing into the Preserve while bank protection is being constructed.
This fall, Marana will construct a connection to purchase water from the Cortaro-Marana Irrigation District and create a permanent pond approximately 5 acres in size. The Town is currently in the process of building an island to provide a safe place for birds to wade and rest once the pond is filled. The Friends of El Rio Preserve looks forward to assisting with pole planting native trees such as cottonwoods and willows and seeding other native annuals and perennials on the island.
Come visit El Rio Preserve once construction work is completed – you will be surprised at this lush natural site in the heart of the Sonoran Desert.
In March 2020, Pima County released its fourth annual report on its Multi-Species Habitat Conservation Plan (MSCP). The full report can be found on the Pima County website HERE. According to the Executive Summary, six Pima County capital improvement projects and 52 private development projects were “covered” by the MSCP in 2019. While these projects cumulatively had 196.8 acres of impact to the habitat of vulnerable wildlife species, the MSCP required 767.7 acres of mitigation to offset these impacts.
Some other highlights from the report include:
- The Regional Flood Control District reported that 94.5% of applicants avoided impacting regulated riparian habitat.
- The Pima County Board of Supervisors approved several land-use policies that promote reuse or infill instead of sprawl.
- U. S. Fish and Wildlife Service approved a plan for augmenting populations of covered species on our mitigation lands, and another for managing properties along the San Pedro River.
- A new population of Gila topminnow was established in a stream on the County’s M Diamond Ranch.
- During 2019, the portfolio of potential mitigation lands increased by approximately 250 acres.
- Pima County staff, contractors, and volunteers mechanically removed or chemically treated approximately 1,470 acres of buffelgrass on County preserve lands.
- Office of Sustainability and Conservation staff made 623 separate observations on Covered Species; these were reported to the Arizona Game and Fish Department.
- County staff developed comprehensive monitoring protocols for seven monitoring elements, including upland habitat, water resources, landscape pattern change, invasive aquatic and plant species, off-highway vehicles, and climate.
- County staff in partnership with Tucson Audubon Society and the National Park Service established an additional 21 long-term vegetation and soils monitoring plots on County preserve lands.
Arizona Game and Fish Department (AGFD) just released the latest and greatest monitoring data from the Oracle Road wildlife overpass and underpass. This represents FOUR FULL YEARS of monitoring these wildlife crossings since construction finished in March 2016.
Some notable data and results include:
- 26 different species have been observed using the crossings, including 11 species at the overpass and 25 species at the underpass.
- Over 10,000 wildlife crossings have been documented by AGFD cameras – 10,843 to be exact. These crossings are fairly evenly split between both structures, with 5,490 crossings at the overpass and 5,353 at the underpass.
- Over 98% of the crossings are by four species: mule deer, javelina, bobcat, and coyote.
- Total crossings at each structure have increased year upon year since construction finished. This means each year more and more wildlife are using these wildlife crossings.
For more results, you can read the full monitoring report HERE.
To learn more about why these crossings were built, how they were funded, and more, head over to the following webpages:
- Oracle Road Wildlife Crossings Overview
- Wildlife Results: It Works!
- The Big Picture: Tucson-Tortolita-Santa Catalina Mountains Wildlife Linkage
- Oracle Road Wildlife Crossings: Frequently Asked Questions
Thanks to a new partnership with volunteer, welder, and ecology student Raynor Vandeven, there are now four wildlife cameras out in the field with professional photography equipment capturing images of Sonoran Desert wildlife. These cameras are located in an area along the proposed I-11 route, in the Tucson Mountains, near the Oracle Road wildlife crossings, and in the I-10 East wildlife linkage area.
We are so grateful to Raynor for his willingness to share these images with the Coalition and can’t wait to start sharing more of them with you in the weeks and months ahead!
(Note: the photos below are examples of Raynor’s wildlife photography and were not taken in the locations described above. )
The Oracle Road wildlife crossings were recently featured on TV station FOX10’s Drone Zone segment in Phoenix. Check out this 3+ minute segment to see some amazing drone footage of both the Oracle Road wildlife underpass and overpass, along with a great interview of our partner Jeff Gagnon with the Arizona Game and Fish Department (click on the image/link below to access the full TV segment).
On August 8, 2019, the Center for American Progress released a new report on the proposed Interstate 11 as part of its “White Elephant Watch” series, which “profiles projects that demonstrates the failures of the current U.S. policy approach to transportation infrastructure.”
This report provides a detailed analysis of this proposed project, including a point-by-point analysis of the Purpose and Need section of the Draft Environmental Impact Statement. The report concludes the following:
“ADOT’s proposed I-11 corridor has four major flaws:
- Fails to increase transportation choice or reduce local single-occupant vehicle trips made within the Phoenix and Tucson metro areas
- Promotes low-density land use and dependence on automobility
- Produces significant environmental harms
- Is based on flawed travel demand models that do not adequately account for induced demand”
In July 2019, as part of the continued implementation of their Multi-Species Habitat Conservation Plan (MSCP), Pima County released a new Aquatic Species Management Plan. According to Pima County Environmental Planning Manager, Julia Fonseca:
“The Plan identifies opportunities for releasing target species on County-managed conservation lands where they do not currently occur.
The Plan inventoried streams, springs, stock tanks and large ponds for opportunities for releasing target species where they do not currently occur. Species with the most release opportunities are the Gila topminnow (15 sites) and Huachuca water umbel (14 sites). The most widespread target species on County conservation lands is the lowland leopard frog; there are eight additional sites available for future releases of this species. Opportunities at small, confined sites also exist, like the recent release of topminnow and umbel species at Mission Garden.
The Plan is a required element of the Multi-species Conservation Plan (MSCP). It supports implementation of Arizona Game and Fish Department’s (AZGFD’s) priorities for the Santa Cruz watershed, as well as recovery objectives established by U. S. Fish and Wildlife Service (USFWS). The Plan does not direct, authorize or fund any particular action on land owned or managed by Pima County or the Regional Flood Control District. Implementation will depend on partnerships with AZGFD and other conservation partners over the 30-year term of the MSCP.
The Plan includes guidelines prepared by USFWS for construction of wildlife-friendly water features. These guidelines may be of interest to private property owners who wish to maximize benefits and minimize risks to Arizona’s wildlife.”
We commend Pima County for their continued implementation of the MSCP since it was approved by the USFWS in 2016. And thank you for supporting the conservation of our must vulnerable Sonoran Desert wildlife species through our work advocating for the MSCP since 2000.
You can learn more about the MSCP at our Habitat Conservation Planning webpage.