The California Department of Fish and Wildlife (CDFW) recognizes the 10th National Endangered Species Day with a focused environmental concern. The purpose of the Endangered Species Act is to conserve imperiled species and the ecosystems upon which they depend to prevent extinction. Special activities are scheduled at the zoos in San Diego, Santa Ana, Los Angeles and San Francisco, at Yosemite National Park, San Diego National Wildlife Refuge, San Diego Botanic Gardens, Cabrillo Marine Aquarium in San Pedro, Buena Vista Audubon Society Nature Center, San Francisco Zoo and Sacramento’s Beach Lake Park. Visit www.endangeredspeciesday.org to learn more. California, with all its geographic variety, has tremendous biological diversity. Our state supports more than 5,000 native plants and more than 1,000 native animal species. At least one third of the plants and two thirds of the animals here are endemic species that occur nowhere else in the world. Of all these species, more than 300 are designated by the state as rare, threatened or endangered. There are 133 species listed under the federal Endangered Species Act in California. Loss of habitat, water management conflicts, invasive species, poaching and climate change are the greatest threats to their long-term survival. The combination of wildfires and extreme drought conditions in most of the state add to the pressures on our already-stressed wild plants and animals. CDFW is paying special attention to priority listed species and other sensitive native wildlife that are in areas most severely affected by the drought. Emergency drought funds support projects that transferred water to critical fish and wildlife populations that might not have survived the continuing severe dry conditions without it. Examples of actions taken last year include the flooding of wetland habitats for giant garter snakes in State Wildlife Areas and the relocation of stranded salmon and steelhead. CDFW is establishing fish and wildlife stressor monitoring to assess the drought’s effects and identify key support projects for high-priority listed species such as Amargosa vole, tri-colored blackbird, salmon and species that occur in the San Joaquin Valley. One endangered plant is Butte County meadowfoam (Limnanthes floccosa ssp. californica), a small annual plant that only occurs at the bottom of rocky vernal pools in Butte County. The species has been protected at CDFW’s Stone Ridge and North Table Mountain Ecological Reserves, and although several thousand plants were observed at Stone Ridge this year, only 107 plants were counted at North Table Mountain, which is open to the public and offers fantastic spring wildflower viewing. Endangered Species Day was started in 2006 by the U.S. Senate to raise awareness of and celebrate these disappearing plant and animal species, and draw attention to successful recovery programs and opportunities for the public to get involved. It also honors the people who uphold the legacy of the Act while inspiring the next generation of conservation leaders. To learn more about CDFW’s drought-related actions to protect California’s fish and wildlife, visit www.wildlife.ca.gov/drought.
Media Contacts: Daniel Applebee, CDFW Wildlife Branch, (209) 588-1879 Dana Michaels, CDFW Communications, (916) 322-2420
More than a few kind-hearted Californians are unnecessarily “rescuing” western pond turtles this spring, and the California Department of Fish and Wildlife (CDFW) is imploring to the public to leave them alone. Turtles normally travel away from water during a portion of their life cycle, and a solo turtle is not necessarily a lost or distressed turtle. Spring is nesting season, so many turtles are leaving their aquatic habitat and traveling upland to lay eggs.
Wildlife rehabilitation centers and animal shelters report that a surprising number of people have been bringing healthy western pond turtles – California’s only native freshwater turtle species – to their facilities, thinking there is something wrong with them because they’re not in a pond. The common name “pond turtle” doesn’t mean they never leave ponds. In fact, this species more frequently lives in rivers, streams, lakes, and permanent and temporary wetlands. It requires terrestrial habitats not only to nest, but also to wait out extended hot, dry periods or overwinter in a state of dormancy throughout many parts of California.
While most western pond turtles nest somewhat near water, they have been documented traveling long distances (more than 500 yards) to upland habitat to lay eggs and sometimes even farther to overwinter. With water becoming more scarce as the drought persists, more turtles are moving upland earlier in the season to estivate (summer dormancy). People may encounter turtles during these travels and think they are lost or sick, since they are quite some distance from water. CDFW receives many contacts from well-meaning people who report that they have found and collected what they believe to be a sick turtle, when in reality the turtle was traveling to upland habitat as part of its natural activities.
Western pond turtles are designated as a “species of special concern” in California, “critical” in Oregon, and “endangered” in Washington. The U.S. Fish and Wildlife Service announced in April that the species may warrant protection under the federal Endangered Species Act.
“Western pond turtles face a number of threats throughout their range,” said Laura Patterson, CDFW’s Amphibian and Reptile Conservation Coordinator. “They are shy animals and sensitive to human disturbance. Anyone who removes a healthy turtle from the wild is potentially compromising its ability to successfully reproduce and survive in the future. In addition, anyone – other than a licensed wildlife rehabilitator – who releases turtles that have been kept in captivity is not only breaking the law but putting the health of wild populations at risk by spreading disease. These actions are almost always unnecessary and often quite counterproductive, so I urge the public to take a hands-off approach to caring for these sensitive, imperiled animals.”
Western pond turtle populations have declined significantly in some parts of the state, especially Southern California, due to habitat loss, degradation and fragmentation. Predation, competition and diseases from non-native species, including pet turtles released into the wild, have also contributed to declines and localized extinctions.
According to the California Code of Regulations Title 14, section 40, it is illegal to capture, collect, intentionally kill or injure, possess, purchase, propagate, sell, transport, import or export any native reptile or amphibian, or part of one, with very few exceptions. Native reptiles covered under the law include western pond turtles and desert tortoises. Once they’ve been in captivity, they may not be returned to the wild without written authorization from CDFW.
It is best to leave all native wildlife alone. If you care, leave them there!
A brochure with more information on western pond turtles and what to do if you find one can be downloaded at http://tinyurl.com/ljy5cmu.
Laura Patterson, CDFW Wildlife Branch, (916) 341-6981
Dana Michaels, CDFW Communications, (916) 322-2420
The California Department of Fish and Wildlife (CDFW) has posted the 2015 Big Game Digest to its website. The 64-page document can be downloaded online for free at www.dfg.ca.gov/publications/digest/.
The popular guide includes season, quota and harvest information for deer, elk, pronghorn antelope and bighorn sheep, as well as tag drawing information, bear and wild pig hunting information and big game hunting regulations for the 2015-16 seasons.
Printed copies of the Big Game Digest will automatically be mailed in late April to hunters who purchased a big game tag or applied for the Big Game Drawing in California in 2014.
“As printing costs continue to rise, more funding for big game conservation will be available if the department reduces printing and mailing costs,” said Dan Yparraguirre, CDFW’s Deputy Director of Wildlife and Fisheries. “Making the Big Game Digest available online also means that hunters can access this information sooner.”
Californians around the state can now use an online tool to report incidents of fish and wildlife mortality directly to the California Department of Fish and Wildlife (CDFW). By contributing to CDFW’s growing database, citizens can help state environmental scientists gather important information necessary to monitor and evaluate wildlife populations and help prevent and control emerging diseases.
“The CDFW Wildlife Investigations Lab is asking for this information so we can be one step ahead of a potential disease outbreak or other health concern,” said CDFW Environmental Scientist Lora Konde. “If we don’t know about it, we can’t do anything about it.”
CDFW is particularly interested in reports of dead animals with no visible injuries, sick or dead animals in unusual locations and/or more than five sick or dead animals at one location.
There are three ways to submit information:
Online: The preferred method is to submit information using the new mortality reporting form found at wildlife.ca.gov/living-with-wildlife. From the “Living with Wildlife” webpage, click on the purple box, “Report Dead Wildlife,” to access the form. The form asks for such information as: observation date, the reporter’s name and contact information, what kind of animal, where the animal was located and estimated mortality date. Photographs may be uploaded as well. The form is meant to be submitted online, but can also be filled out manually, printed and faxed to the Wildlife Investigations Lab at (916) 358-2814.
Smartphone: There is not a smartphone “app” available, but the mortality reporting form on the CDFW website is phone-enabled and can be filled out and submitted directly from a smartphone. To access the form, go to the main CDFW website (wildlife.ca.gov) and type “mortality reporting” into the search engine. The first suggested link that appears will redirect you to the form and submission page.
Email: Reports can also be sent via email to the Wildlife Investigations Lab email at email@example.com.
CDFW’s database does not include small animals (cats, dogs, skunks, possums, etc.) killed by cars or other mechanical means. These can be reported to the California Roadkill Observation System, www.wildlifecrossing.net/california/. However, please contact your local CDFW office (www.wildlife.ca.gov/regions) if you observe a deer, mountain lion or bear that has been hit by a car.
Local animal control agencies can also assist with sick animals that may need help or small dead animals that should be removed.
Public contributions to state scientists’ efforts (dubbed “citizen science”) is encouraged and greatly appreciated by CDFW. “When people are going about their daily activities and they keep an eye out in the field for sick or dead animals and take the time to report it to us, it is very helpful. The public’s input is an extra resource to support this monitoring effort and keep wildlife populations healthy,” Konde explained.
Though still relatively new, the online submission feature is already proving to be useful. In January 2015, CDFW began closely monitoring the population of band-tailed pigeons for signs of disease. Many Californians who observed increased numbers of dead birds took the time to share that information with CDFW.
“We were grateful that the public responded enthusiastically and provided us with a lot of useful information through this online reporting method,” said Konde. “This makes the process of gathering data easier and more efficient. The faster we know about an outbreak, the faster we can analyze it and take action.”
There’s still time to help endangered species on your California income tax return, if you haven’t yet filed it. Near the end of Form 540 there is a section called Voluntary Contributions where you can donate one dollar or more to the Rare and Endangered Species Fund (line 403) and/or the California Sea Otter Fund (line 410). If you itemize deductions, the amount you donate this year will be tax-deductible next year.
With more than 200 species of plants and 80 species of California’s animals listed as rare, threatened or endangered, a great deal of work is needed to recover them. Donations on Line 403 help pay for essential California Department of Fish and Wildlife (CDFW) research and recovery efforts for these plants and animals, and critical efforts to restore and conserve their habitat.
Tiburon mariposa lily, California tiger salamander, giant garter snake, yellow-billed cuckoo and island fox are among the species CDFW is currently working on to ensure they survive well into the future.
California’s southern sea otter population remains below 3,000, so Enhydra lutris is still a fully protected species under state law and listed as threatened under the federal Endangered Species Act. Donations to the California Sea Otter Fund on line 410 support research by CDFW scientists, who are currently studying 15 years of sea otter mortality information and recently discovered viruses not previously known in this species. These studies should help us better understand the causes of mortality and contribute to population recovery efforts.
If someone else prepares your state tax return, please let him or her know you want to donate to the California Sea Otter Fund on line 410 or the Rare and Endangered Species Protection Program on line 403. If you use Turbo Tax, when you’re near the end of your tax return it should ask if you want to make a voluntary contribution to a special fund. Click “Yes” and go to lines 403 and 410.
CDFW scientists work with their counterparts in other government agencies, nonprofit organizations and the private sector to achieve important recovery milestones to conserve vulnerable species, thanks to California taxpayers like you. More information about how CDFW uses funds in the Rare and Endangered Species Protection and Sea Otter programs is available at www.wildlife.ca.gov/Tax-Donation and www.facebook.com/SeaOtterFundCDFW.
Caltrans and the California Department of Fish and Wildlife (CDFW) are cautioning motorists of an unusually high number of collisions between drivers and wildlife on mountain highways this autumn. The increase has been particularly notable on Interstate 80 and U.S. Highway 50 in Placer and El Dorado counties.
“There were an unprecedented 23 incidents involving large animals on Highway 50 and I-80 in just six days from Nov. 14-19,” said Caltrans Director Malcolm Dougherty. “Drivers need to use caution and watch out for wildlife as they travel through the Sierras and other rural areas.”
“Motorists need to be on the lookout for animals on or near roadways, particularly deer and bears,” said CDFW Director Charlton H. Bonham. “It’s not only dangerous for the animals, but drivers and their passengers can be injured or killed if they hit – or swerve to miss – an animal.”
Caltrans and CDFW offer a few tips for motorists:
Be particularly alert when driving in areas frequented by wildlife and give yourself more time than usual to react safely by reducing your speed.
“Sweep” the roadway from side to side with your eyes as you drive. This increases your chance of seeing anything that might become a hazard.
Pay particular attention when driving during morning and evening, as wildlife are most active during these times.
If you see an animal cross the road, know that another may be following it.
Don’t litter. Odors from all kinds of products may entice animals to venture near roadways.
There are probably several factors behind the animals’ increased movements near highways. One is the deer rut, or mating season, and bucks are always more active this time of year. Recent wildfires in the mountains and foothills also destroyed a considerable amount of vegetation, forcing wildlife to travel farther than usual to forage. The drought has stressed existing vegetation, likely reducing its normal nutritional value and forcing animals to eat more than usual. Bears are getting ready for hibernation and are foraging far and wide to get enough nutrition to make it through the winter.
“Wildlife corridors” constructed under some highways have helped reduce wildlife-related incidents. Caltrans recently completed construction of a wildlife crossing on State Highway 89 in Sierra County and has two others planned for construction next season. The district also built a wildlife crossing on Highway 50 and has a project programmed for next season to study wildlife activity near state highways.
In addition, Caltrans has wildlife warning signs posted in key areas along its state highway system and will be installing more with help from CDFW and other partner agencies. Caltrans will also be using its electronic message boards to alert motorists of increased wildlife activity.
Caltrans District 3 is responsible for maintaining and operating 4,385 lane miles in 11 Sacramento Valley and Northern Sierra counties. CDFW’s North Central Region is responsible for managing California’s diverse fish, wildlife and plant resources across 17 counties.
Amargosa voles, small rodents that inhabit rare marshes of the Mojave Desert, have faced dire circumstances in recent years. Loss of habitat, extreme drought and climate change brought this subspecies of the California vole to near extinction, leaving only a few hundred clinging to existence. It is now one of the most critically endangered mammals in North America. Its luck may be changing with the birth of the first set of pups from a new captive breeding program at the UC Davis School of Veterinary Medicine.
An interdisciplinary research team is working to study the vole and ultimately shore up the population so that it doesn’t go extinct. As part of that effort, the team began a captive breeding program. Ten females and 10 males, all about five weeks of age, were removed from the wild in mid-July and brought to UC Davis.
The research team includes members from UC Davis, the California Department of Fish and Wildlife, the Bureau of Land Management, the U.S. Fish and Wildlife Service, the U.S. Geological Survey and UC Berkeley.
In the field, researchers have observed fluctuations in the size of the Amargosa vole population.
“The numbers are at their highest just after breeding in the spring when the vegetation is still good,” said project lead Janet Foley, a professor of medicine and epidemiology at the UC Davis School of Veterinary Medicine. “But as the summer wears on and the limited marsh habitat dries up, the population may crash. This year, we saw their main marsh shrinking fast and we knew a large number would die in the coming months. If we wanted to save the species, we had to act quickly.”
During the first few weeks in captivity at Davis, the voles remained quarantined in individual enclosures. They underwent full diagnostic testing for pathogens and genetic analysis to ensure the most diverse breeding pool possible before placed together in breeding pairs.
By October, all three of the pairs produced pups. There are four healthy pups now. Eventually, the animals will be placed outside in large escape-proof tubs in a secure location. The tubs will be planted with bulrush to mimic their native habitat.
Researchers aren’t sure how long it will take the captive population to build. They also hope to learn about optimal breeding conditions – such as food, shelter, length of daylight and temperature – for the voles. Once a few hundred voles have been born in captivity, researchers plan to reintroduce them to the marsh areas in their home range.
“We know the population is already inbred, but we don’t know whether that has affected them as a species,” Foley said. “There’s so much we have yet to learn about this subspecies. This is a great opportunity to understand population genetics, basic ecology and behavior. Previously, we’ve made assumptions about those things, but now we can verify them.”
Taking a toll on the vole
The Amargosa vole (Microtus californicus scirpensis) inhabits sparsely located wetlands just east of Death Valley National Park. Those marsh habitats, which exist only in a few small, isolated patches throughout the desert, are increasingly threatened by drought, climate change and habitat modification by humans. The current drought has likely exacerbated their dire situation. Low water means fewer bulrushes – the wetland plants this subspecies depends heavily upon for habitat and food.
Once thought to be extinct, the Amargosa vole was rediscovered in the late 1970s by a state fish and wildlife biologist. It was listed as an endangered species in 1980 by the state and in 1984 by the federal government. Recent BLM research indicates an 82 percent chance that the species could go extinct within five years if immediate management action is not taken.
In the past few years, the research team has worked to update information about the number of voles and where they live. Researchers have looked at additional factors impacting the Amargosa vole, including infectious diseases, competition with other rodents, predation, and other environmental pressures.
“The commitment and collaboration demonstrated by the inter-agency/academia vole working group is a great example of what can be accomplished in a short time to conserve not only the Amargosa vole, but also its unique desert marsh habitat that other species also depend on,” said program co-lead Deana Clifford, CDFW wildlife veterinarian and assistant clinical professor at UC Davis. “By pooling our resources and working together we can increase the chances that healthy populations of Amargosa voles will persist well into the future.”
Funding for the research and captive breeding colony comes from BLM, CDFW, USFWS and the State Office of Emergency Services (drought funding). UC Davis and CDFW are donating personnel time, and a private landowner has been providing free field housing for the research crews.
About UC Davis
UC Davis is a global community of individuals united to better humanity and our natural world while seeking solutions to some of our most pressing challenges. Located near the California state capital, UC Davis has more than 34,000 students, and the full-time equivalent of 4,100 faculty and other academics and 17,400 staff. The campus has an annual research budget of over $750 million, a comprehensive health system and about two dozen specialized research centers. The university offers interdisciplinary graduate study and 99 undergraduate majors in four colleges and six professional schools.
About the School of Veterinary Medicine
Leading Veterinary Medicine, Addressing Societal Needs: The School of Veterinary Medicine serves the people of California by providing educational, research, clinical service and public service programs of the highest quality to advance the health of animals, people and the environment, and to contribute to the economy. For further information, please visit www.vetmed.ucdavis.edu/.
About the California Department of Fish and Wildlife
The California Department of Fish and Wildlife works to manage California’s diverse fish, wildlife, and plant resources, and the habitats upon which they depend, for their ecological values and for their use and enjoyment by the public.
Caltrans and the California Department of Fish and Wildlife (CDFW) remind motorists to remain alert for wildlife near roadways during Watch Out for Wildlife Week (WOW), which runs September 15-21.
“It’s important that motorists, when driving through areas frequented by deer, elk and other animals, be alert to protect themselves as well as California’s wildlife,” said Caltrans Director Malcolm Dougherty.
Defenders of Wildlife (Defenders), a national nonprofit organization dedicated to protecting native species and their natural communities, reports more than 200 people are killed nationally in collisions with deer, elk and other large mammals each year with an estimated 1.5 million animals hit annually.
The Watch Out for Wildlife campaign is supported by Caltrans, CDFW, Defenders and the Road Ecology Center at the University of California, Davis.
“It’s a shame that many animals and people are injured and killed on our roads every year,” said Craig Stowers, CDFW’s Game Program Manager. “Many injuries, deaths and costly vehicle repairs can be avoided if drivers would pay more attention when animals are most active, and be prepared to react safely if an animal moves onto the road.”
Caltrans, CDFW and Defenders offer a few tips for motorists:
Be particularly alert when driving in areas frequented by wildlife and give yourself more time to react safely by reducing your speed.
Pay particular attention when driving during morning and evening, as wildlife are most active during these times.
If you see an animal cross the road, know that another may be following.
Don’t litter. The odors may entice animals to venture near roadways.
Here are a few examples of what Caltrans, CDFW and their partners are doing to reduce wildlife-vehicle collisions:
Liberty Canyon Wildlife Crossing, Los Angeles County Caltrans has applied for $2 million in federal funding for the environmental and engineering design phases of a future wildlife crossing over U.S. Highway 101 at Liberty Canyon Road in Agoura Hills. In the interim, Caltrans is providing wildlife fencing in Liberty Canyon to prevent wildlife mortalities along the freeway until a permanent structure can be built. The highway presents an impassible barrier for wildlife migrating into or out of the Santa Monica Mountains. A new wildlife crossing promises to provide an improved habitat connection that will sustain and improve the genetic diversity of wildlife in the area.
State Route 76, San Diego County Five wildlife crossings and directional fencing were installed as part of the SR-76 Melrose to Mission Highway Improvement Project in 2012. A wildlife movement study, including road kill surveys, camera station surveys and tracking transect surveys, is underway to determine the effectiveness of the crossings and fencing. A review of the data collected to date suggests the combination of directional fencing and wildlife crossings may be limiting vehicle-wildlife collisions and allowing for wildlife movement across SR-76. Medium-to-large species using the wildlife crossings include the badger, bobcat, coyote, raccoon, striped skunk, desert cottontail and opossum.
State Route 17, Santa Cruz Caltrans has built wildlife undercrossings to accommodate wildlife on several highways in the Bay Area and is currently working with the Land Trust of Santa Cruz County to build a new wildlife undercrossing at the Laurel Curve on State Route 17. Since 2007, motorists have hit 14 mountain lions along this section of the highway in the Santa Cruz Mountains. The Land Trust is working to raise $5 million to purchase land on either side of the Laurel Curve, which would make it possible for Caltrans to proceed with building the undercrossing.
Central Coast Caltrans is seeking $1.8 million in federal funding to finance wildlife corridor projects in Monterey, San Benito, Santa Cruz and Santa Clara counties where local wildlife exists in close proximity to state highways. If the request is approved, Caltrans will obtain an additional $2.5 million in state funding to finance all aspects of the projects. Caltrans assembled an extensive list of stakeholders and partners for this proposal, including the California State Coastal Conservancy, the Nature Conservancy, UC Davis, the Elkhorn Slough Foundation, the Pinnacles National Monument and the Resource Conservation District of Santa Cruz County.
Caltrans has installed new wildlife fencing and electric mats at unfenced intersections along U.S. Highway 101 near San Luis Obispo, which bisects a major wildlife corridor in the Los Padres National Forest.
Media Contacts: Mark Dinger, Caltrans Public Affairs, 916-657-5060
Dana Michaels, CDFW Communications, 916-322-2420
The winners of the “Race to Protect Your Favorite Place” youth poster contest have been announced by the California Department of Fish and Wildlife’s (CDFW) Invasive Species Program.
As part of the California Invasive Species Action Week, 34 youths from across California submitted their original artwork. Participants were asked to create original posters depicting invasive species that threaten their favorite places and how they can take action to help protect that habitat. The top three posters for each grade division were selected by members of the California Invasive Species Advisory Committee and the poster which best exemplified the contest theme was selected as the CDFW Invasive Species Program Choice Award.
Jack Carr Ritchie, 8, of Half Moon Bay, was named the winner of the Invasive Species Program Choice Award. His poster depicts his family, represented by a Viking, utilizing prescribed fire, mechanical removal and goat grazing to control bristly oxtongue (Picris echioides) in Half Moon Bay. “We want to get rid of bristly oxtongue because it takes over everywhere and its bristles can hurt people,” Carr Ritchie wrote when submitting his poster.
The top three winners of the 2014 Invasive Species Action Week youth poster contest divisions were:
First Place: Kailan Mao, 10, Borrego Springs; subject: Sahara mustard
Second Place: Mario Giannini, 10, Chico; subject: northern pike
Third Place: Ivy Sayre, 9, Chico; subject: yellow starthistle
First Place: Charin Park, 13, Saratoga; subject: biodiversity conservation
Second Place: Rayni Kirkman, 12, Whiskeytown; subject: zebra mussel
Third Place: Clara Shapiro, 11, Chico; subject: velvetleaf
First Place: Claire Kepple, 18, Quincy; subject: gold-spotted oak borer
Second Place: Trisha Tabbay, 15, Los Angeles; subject: hydrilla
Third Place: Albert Brumat, 16, Los Angeles; subject: guava fruit fly
CDFW’s Invasive Species Program staff congratulates all the participants for their excellent work, and thank the teachers, nature centers, volunteer organizations and parents who encouraged, educated and assisted the students.
All submissions have been on display in the Nimbus Hatchery Visitor Center in Gold River during Invasive Species Action Week, Aug. 2-Aug. 10. To view the winning entries online, please visit the youth poster contest webpage at www.dfg.ca.gov/invasives/actionweek/postercontest.html.
The California Department of Fish and Wildlife (CDFW) has completed its 2014 waterfowl breeding population survey. The resulting data indicate the total number of breeding ducks (all species combined) remains similar to last year. The number of breeding mallards, however, has declined 20 percent compared to 2013.
The total number of breeding ducks is estimated at 448,750 compared to 451,300 last year. This estimate is 23 percent below the long-term average. The estimated breeding population of mallards is 238,700, a decrease from 298,600 in 2013, which is below the long-term average. CDFW attributes the decline to very low precipitation and poor habitat conditions. However, many other species increased in number this year.
“Habitat conditions were poor the last two years in both northeastern California and the Central Valley and the production of young ducks was reduced as a result, so a lower breeding population was expected in 2014,” said CDFW’s Waterfowl Program Biologist Melanie Weaver. “We would expect another low year of duck production from these two important areas in California in 2014. However, habitat conditions in northern breeding areas are reported to be better than average.”
CDFW has conducted this survey using fixed-wing aircraft since 1955. The California Waterfowl Association, under contract with CDFW, assists CDFW by surveying a portion of the transects using a helicopter. The population estimates are for the surveyed areas only, although surveyed areas include the majority of the suitable duck nesting habitat in the state. These areas include wetland and agricultural areas in northeastern California, the Central Valley from Red Bluff to Bakersfield, and the Suisun Marsh.
The majority of California’s wintering duck population originates from breeding areas surveyed by the U.S. Fish and Wildlife Service (USFWS) in Alaska and Canada, and these results should be available in July. CDFW survey information, along with similar data from other Pacific Flyway states, is used by the USFWS and the Pacific Flyway Council when setting hunting regulations for the Pacific Flyway states, including California.
The federal regulation frameworks specify the outside dates, maximum season lengths and maximum bag limits. Once CDFW receives the USFWS estimates and the frameworks for waterfowl hunting regulations from the USFWS, CDFW will make a recommendation to the Fish and Game Commission regarding this year’s waterfowl hunting regulations.