What is in this article?:
- Pilot project encourages rice, wildlife in Sacramento Valley
- Pilot project a win-win opportunity
- California rice industry-wildlife development pilot project underway in the Sacramento Valley is a prime example of farmers and environmental groups partnering to achieve mutual long-term goals;
- Major players in program - California Rice Commission, PRBO Conservation Science, Audubon California, and The Nature Conservancy;
- The pilot program includes four potential changes in rice field management to enhance wildlife;
- One proposed change - flatten berms between the rice field checks (patties) and remove vegetation to create more desirable habitat for some shore birds and waterfowl.
A California rice industry-wildlife development pilot project underway in the Sacramento Valley is a prime example of farmers and environmental groups partnering to achieve mutual long-term goals.
The pilot program, underway in part at the Davis Ranch operated by the Sycamore Family Trust in Colusa County, is designed to tweak rice production management to spur habitat and wildlife expansion in the epicenter of California’s rice industry.
Among the major players include the California Rice Commission, PRBO Conservation Science, Audubon California, and The Nature Conservancy.
The $1.3 billion California rice industry wants to further improve its commitment to wildlife habitat development in part to maintain support for flooded rice production. Environmentalists view the rice industry as a natural gateway to improve and expand the habitats and populations of critters.
The pilot program, launched in 2009, follows two years of discussion between the groups. The program was detailed in late September to Western Farm Press at the Davis Ranch.
“We are developing new ideas and practices to further enhance water bird habitat for a variety of water birds in rice fields,” said Paul Buttner, environmental affairs manager with the California Rice Commission based in Sacramento. “Rice fields are an excellent habitat drawing 230 species of wildlife, including about 30 viewed as species of concern by state and federal agencies.”
Jon O’Brien, habitat restorationist with Audubon California in Winters, Calif., noted, “We don’t want to take rice land out of production or stop rice farming. We want to work with the rice industry to gain improved wildlife and waterfowl habitat in rice-growing areas while making the changes economically viable for rice growers.”
The pilot program includes four potential changes in rice field management to enhance wildlife. One is to flatten berms between the rice field checks (patties) and remove the vegetation. Buttner says this effort could create a more desirable habitat for some shore birds and waterfowl.
Don Traynham, Davis Ranch custom operator, is one of a handful of farmers participating in the pilot program. Davis Ranch includes 3,500 acres of rice.
“Traditional levees are more of a pyramid shape,” Traynham said. “For the pilot study, we rolled the berm top down to create more of a curvature while maintaining the same height. The idea is to attract more shore birds to the center of rice fields for nesting which can reduce predation from coyotes, raccoons, skunks, and possums.”
The cost to flatten berms is minimal, Traynham says, requiring an extra tractor pass or two across the berm.
A second concept in the pilot program encourages rice farmers to flood individual fields immediately after the fall harvest. Fields are traditionally flooded once the entire farm’s rice harvest is completed.
“The idea is to flood fields immediately after the harvester completes the harvest on a field-by-field basis rather than waiting to flood fields after the entire farm is harvested,” Buttner explained. “This would get water on some fields earlier. In late summer there is a dramatic shortage of open water for shorebird migration. Earlier flooding would increase the available acreage for shore birds.”
A third practice under study is varying the water depth in individual rice fields during the winter months. The current standard is about 5 inches of water across all rice fields. Creating variable water depths could provide habitat for water bird species which have various habitat preferences.
“The water depth of the field really drives which birds use it,” said Khara Strum, water bird ecologist with PRBO in Petaluma, Calif. “Water fowl can better utilize deeper water depths than shore birds and the long-legged waders typically use depths between waterfowl and shore birds. We’re trying to target those three guilds by creating a beneficial habitat for all of them.”
A fourth practice encourages more available water for birds during the winter by growers keeping water boards in place in the fields to improve rain water collection. Strum says the “boards in” procedure in the winter months can create improved habitat for shore birds.
“If boards are put back in back in the water control structures in un-flooded fields then we can accumulate more rain water to provide extra habitat for shore birds.”