Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Posts Tagged: Adina Merenlender

UC Cooperative Extension works in local communities to help Californians adapt to climate change

Californians received bleak news last month when the state released its fourth assessment of climate change in California. The report predicts severe wildfires, more frequent and longer droughts, rising sea levels, increased flooding, coastal erosion and extreme heat.

“It's great to be living in a state where science and facts around climate change are valued,” said UC Cooperative Extension specialist Adina Merenlender, “but the recent forecasts may make you want to devour a quart of ice cream in a pool of salty tears.”

Modern civilization has changed the world climate, and even dramatic reductions in global greenhouse gas emissions at this point won't turn back the clock. The warming now predicted by Cal-Adapt is likely already “baked in,” even with our best mitigation efforts, said Igor Lacan, UC Cooperative Extension advisor in the Bay Area of California.

UCCE specialist Ted Grantham is the lead author of the Fourth Climate Assessment's North Coast Region Report.
Although the changes can't be reversed, people and communities can take several measures to prevent even greater warming – mostly by reducing the use of fossil fuels – and adapt to the changing environment. In fact, researchers are already helping California adapt to the warmer, more variable and extreme weather expected in the next 100 years.

California has been a leader in facing the future climate head on. The state's first comprehensive assessment on climate change was produced in 2006 under then-Gov. Arnold Schwarzenegger. The second assessment, released in 2009, concluded that adaptation could reduce economic impacts of loss and damage from a changing climate. The third assessment was shaped by a request for more information on the adaptation options in the 2009 report. The fourth assessment was the first effort to break down global climate predictions and their impacts onto specific regions of California.

Author of the North Coast Region Report of the Fourth Assessment, Ted Grantham, praised state leaders for pushing forward efforts to slow climate change and adapt to the new weather conditions expected in California.

“California is playing a unique role in filling the void of leadership on this issue that the federal government was beginning to address under the Obama administration,” Grantham, a UC Cooperative Extension specialist based at UC Berkeley, said.

Across California, UC Cooperative Extension specialists and advisors are working in their local communities to prepare for warming temperatures and adapt to the changing climate. Following are examples of the efforts now underway.

Following years of drought, millions of trees succumbed to bark beetles in the Sierra Nevada.

Managing forests to survive the future

Among the suggested adaptation strategies in the 81-page North Coast Region Report, written by Grantham and his colleagues, the authors encourage government agencies and private forest owners to use prescribed fires and active forest management to reduce an overgrowth of trees and shrubs that fuel the more frequent and intense fires expected in the future.

Although climate change will create conditions conducive to catastrophic wildfire, the reason for dangerous forest overgrowth is related to decades of fire suppression on the landscape.

“Our forests are much denser and have more fuel buildup than they would have under a natural fire regime,” Grantham said. “Mechanical thinning, removing wood from the landscape and prescribed fires can help limit the impacts of wildfire.”

Native American tribes are being tapped to share their traditional ecological knowledge to inform this practice.

“Native Americans have used fire since time immemorial to manage their landscapes,” Grantham said.

Plants and wildlife, like this mountain lion, will need to find natural corridors to migrate into areas with suitable climates. (Photo: National Park Service)

Connecting habitats to allow species movement

When climate changes, plant and animal species may find their current habitats no longer fit the environment where they evolved. The fourth assessment technical report, Climate-wise Landscape Connectivity: Why, How and What Next, written by UCCE specialist Adina Merenlender, documented potential techniques to erase barriers to plant and animal movement.

“When we talk about wildlife corridors today, we might view a road as a barrier,” Merenlender said. “With climate change, the movement is over a much longer range for species to find suitable habitat at the end of the century.”

The report says research is needed to compare different approaches to designing climate-wise connectivity, determining how wide corridors need to be, and quantifying the impact of natural and anthropogenic barriers on possible range shifts.

The Italian grape variety falanghina could be a sought-after white wine varietal in the future. (Photo: Wikimedia Commons)
New varieties for California wine industry

California's wine industry is based on international varieties that come from Northern France, where the climate is cool, mild and consistent.

“They really require a cool to warm climate, not a hot climate,” said Glenn McGourty, UCCE viticulture advisor in Mendocino County.

There are many wine grape cultivars from Southern Europe – areas in Italy, Portugal and Spain – that are adapted to heat and make quality wines, but aren't well known. The varieties include Monepulciano, Sagrantino, Periquita and Graciano.

McGourty is studying how these cultivars perform in the warm interior of Mendocino County at the UC Hopland Research and Extension Center.

“We have many options as climates warm in the interior part of California to make wine that needs less amelioration in the winery compared to cultivars from Northern France,” McGourty said.

Recruiting and training climate stewards

The UC California Naturalist Program is moving full steam ahead with a new Climate Stewards Initiative to build engaged communities and functioning ecosystems that are resilient to changing climates.

California Naturalist, with trained volunteers across the state working with myriad conservation organizations, will be using its educational network to improve the public's understanding of climate change and engage the public in community action and local conservation.

“Climate stewards will offer in-person communication with your neighbors, tapping into science,” Merenlender said. “Improving climate literacy is an important outcome, but that won't happen through a website.”

Volunteer UC California Naturalists will be recruited to engage the public in climate change resilience.

Helping growers modify farming practices due to changing climate

USDA Climate Hub has awarded a grant to UC Cooperative Extension to support tools to assist growers in making strategic decisions in season and long term.

“We have many credible sources of weather and climate data, but often times we are challenged with translating it into decision support tools tailored to growers' needs,” said Tapan Pathak, UCCE specialist in climate change adaptation in agriculture. “It's too early to say which specific tools we will develop, but we are aiming to help farmers use weather and climate information in decision making processes.”

Pathak is also working with colleagues to analyze how generations of navel orangeworm, a significant almond pest, might shift for the entire Central Valley under climate change and how growers can adapt their practices to manage the higher pest pressure.

Identifying drought tolerance in sorghum may help scientists impart drought tolerance in other crops. (Photo: Peggy Lemaux)

Using epigenetics to impart drought tolerance

At the UC Kearney Agricultural Research and Extension Center in Parlier and the UC West Side Research and Extension Center in Five Points, sorghum nurseries are being grown under drought and well-watered conditions to compare the environmental impacts on the plants' gene expression.

“We hope to tease out the genetics of drought tolerance in sorghum,” said Jeff Dahlberg, UCCE specialist, who is managing the trials at Kearney. “Using sorghum as a model, we expect this research to help us understand drought tolerance in other crops as well.”

Historically, the genetic manipulation of crops, which has been critical to increasing agricultural productivity, has concentrated on altering the plant's genetic sequence, encoded in its DNA.

Recent studies have shown that environmental stresses – such as drought – can lead to epigenetic changes in a plant's genetic information. Because epigenetic changes occur without altering the underlying DNA sequence, they allow plants to respond to a changing environment more quickly.

Read more about the study.

 

Cities can plant street tree species suited to future climate

Many common street trees now growing in the interior of California are unlikely to persist in the warmer climate expected in 2099, according to research published in the July 2018 issue of the journal Urban Forestry & Urban Greening. (Read the research report here until Sept. 27, 2018)

“Urban foresters in inland cities of California should begin reconsidering their palettes of common street trees to prepare for warmer conditions expected in 2099 due to climate change,” said the study's co-author, Igor Lacan, UC Cooperative Extension environmental horticulture advisor in the Bay Area.

Common trees in Coastal California cities appear to be better suited to withstand the 2099 climate.

“Our research shows that some trees now lining the streets of cities like Fresno, Stockton and Ukiah are likely to perform poorly in 2099,” Lacan said. “Those cities need to look at the conditions – and trees – now found in El Centro, Barstow and Fresno respectively.”

Read more about the study and see a chart that shows cities in 16 California climate zones along with the corresponding cities that approximate their climates in 2099.

Cities in inland areas can begin planting street trees that are suited to their future climates.

Trees to shade California in a warmer future

The changing climate predicted for California – including less rain and higher day and nighttime temperatures – is expected to cause chronic stress on many street tree species that have shaded and beautified urban areas for decades.

Realizing that popular trees may not thrive under the changing conditions, UC Cooperative Extension scientists are partnering with the U.S. Forest Service in a 20-year research study to expand the palette of drought-adapted, climate-ready trees for several of the state's climate zones.

“The idea is to look at available but under-planted, drought-tolerant, structurally sound, pest resistant trees for Southern California that do well in even warmer climates,” said Janet Hartin, UCCE horticulture advisor in San Bernardino County.

Twelve tree species were selected for each climate zone in the comparative study, with several area parks used as control sites.

Read more about this study

Managing the forest for survival in warmer conditions

UC Cooperative Extension scientists are part of a collaborative research project with the University of Nevada, Reno, CAL FIRE and the U.S. Forest Service aimed at developing new strategies to adapt future forests to a range of possible climate change scenarios in the Sierra Nevada.

“It includes the idea that we may be struggling just to keep forests as forests, let alone having the species we value,” said Rob York, manager of UC Berkeley's Blodgett Forest Research Station near Georgetown.

Forests sequester a tremendous amount of carbon. As the climate changes, foresters will need to be proactive to reduce the risk of these massive carbon sinks becoming carbon sources.

“We're working to mitigate predicted impacts to forests, including regeneration failures, drought mortality and catastrophic wildfire,” Ricky Satomi, UCCE natural resources advisor in Shasta County.

At three separate study sites across the Sierra Nevada, novel approaches to forest management are being implemented to develop treatments that scientists believe will increase resilience, resistance and adaptability of Sierra Nevada mixed conifer forests.

The 2018-21 project is led by Sarah Bisbing, forest ecology professor at the University of Nevada, Reno, and funded with $2.7 million from CAL FIRE.

Climate change impacts on vulnerable communities

The latest climate assessment also reports on the serious nature of climate threats to vulnerable communities and tribal communities in California, with a focus on working collaboratively with these communities on research and solutions for resilience.

“The impacts of climate change will not be experienced equally among the population,” Grantham said. “The most significant public health and economic impacts – from flooding, extreme heat, air quality degradation, etc. – will be disproportionately experienced by vulnerable populations, including people of color, the poor and the elderly.”

The assessment includes a Climate Justice Report, which shares the idea that no group of people should disproportionately bear the burden of climate impacts or the costs of mitigation and adaptation. The report suggests collaborating with these communities on research and solutions for resilience.

Posted on Wednesday, September 12, 2018 at 1:33 PM

UC ANR scientists contribute to California’s Fourth Climate Change Assessment

The California Natural Resources Agency released California's Fourth Climate Change Assessment today (Monday, Aug. 27), at http://www.ClimateAssessment.ca.govUC Agriculture and Natural Resources scientists contributed substantially to the report.

The Fourth Assessment is broken down into nine technical reports on the following topics:

  • Agriculture 
  • Biodiversity and habitat 
  • Energy 
  • Forests and wildlife 
  • Governance 
  • Ocean and coast 
  • Projects, datasets and tools 
  • Public health 
  • Water 

The technical reports were distilled into nine regional reports and three community reports that support climate action by providing an overview of climate-related risks and adaptation strategies tailored to specific regions and themes.

The regional reports cover:

  • North Coast Region 
  • Sacramento Valley Region 
  • San Francisco Bay Area Region 
  • Sierra Nevada Region 
  • San Joaquin Valley Region 
  • Central Coast Region 
  • Los Angeles Region 
  • Inland South Region 
  • San Diego Region 

The community reports focus on:

  • The ocean and coast 
  • Tribal communities 
  • Climate justice 

All research contributing to the Fourth Assessment was peer-reviewed.

UC Cooperative Extension ecosystem sciences specialist Ted Grantham – who works in the Department of Environmental Science, Policy and Management at UC Berkeley – is the lead author of the 80-page North Coast Region Report.  Among the public events surrounding the release of the Fourth Assessment is the California Adaptation Forum, Aug. 27-29 in Sacramento. For more information, see http://www.californiaadaptationforum.org/. Grantham is a speaker at the forum.

Other UC ANR authors of the North Coast Region Report are:

  • Lenya Quinn-Davidson, UC Cooperative Extension area fire advisor for Humboldt, Siskiyou, Trinity and Mendocino counties 
  • Glenn McGourty, UC Cooperative Extension viticulture and plant science advisor in Mendocino and Lake counties 
  • Jeff Stackhouse, UC Cooperative Extension livestock and natural resources advisor for Humboldt and Del Norte counties 
  • Yana Valachovic, UC Cooperative Extension forest advisor for Humboldt and Del Norte counties

UC Cooperative Extension fire specialist Max Moritz contributed to sections of the main report on Forest Health and Wildfire and to the San Francisco Bay Area Report

UC ANR lead authors of technical reports were:

  • Economic and Environmental Implications of California Crop and Livestock Adaptations to Climate ChangeDaniel Sumner, director of UC ANR's Agricultural Issues Center 

  • Climate-wise Landscape Connectivity: Why, How and What NextAdina Merenlander, UC Cooperative Extension specialist 

  • Visualizing Climate-Related Risks to the Natural Gas System Using Cal-AdaptMaggi Kelly, UC Cooperative Extension specialist 
Dan Stark, staff research associate  for Humboldt and Del Norte counties, contributed to the pest section of Fuel Treatment for Forest Resilience and Climate Mitigation: A Critical Review for Coniferous Forests of California.
Posted on Monday, August 27, 2018 at 3:23 PM
  • Author: Jeannette Warnert
Focus Area Tags: Environment

Enjoy nature, but don't love it to death

Spring is here and that means time to get outside and enjoy California's beauty. This year people are out in record numbers to see wildflowers and experience all the recreational opportunities that parks offer. CNN reported triple the usual number of visitors to Anza-Borrego Desert State Park. Numbers of recreational visits have surged at National Parks across the county with 330 million visitors recorded last year, during the 100th anniversary of the National Park Service.

Recreational bird watchers in Yosemite National Park. Photo courtesy of NPS.
Recently published research shows there are recreational impacts on wildlife, even from quiet recreation activities such as hiking and bird watching. Findings were based on 274 scientific articles published between 1981 and 2015 describing the effects of recreation on a variety of animal species across all geographic areas and recreational activities.

More than 93 percent of the articles reviewed indicated at least one impact of recreation on animals, the majority of which (59 percent) were negative. Hiking, for example, a common form of outdoor recreation in protected areas, can create a negative impact by causing animals to flee, taking time away from feeding and expending valuable energy. Among the negative impacts observed were decreased species diversity; decreased survival, reproduction, or abundance; and behavioral or physiological disturbance (such as decreased foraging or increased stress). These types of negative effects were documented most frequently for reptiles, amphibians, and invertebrates.

Park managers often struggle to balance the need to protect wildlife with the importance of accommodating visitors in support of the many essential benefits nature provides people and the importance of spreading conservation awareness. UC California Naturalists can often be found on the trail helping to interpret nature and focusing on leave no trace in an effort to ensure we don't love nature to death. When out enjoying nature please stay on the trail, respect seasonal closures, minimize noise, do not approach animals, and reduce your driving speed – all recommended steps to minimize the impacts of recreation on wildlife. A light touch now ensures wildlife viewing for many years to come.

Death Valley National Park visitors enjoy wildflowers from the road. Photo courtesy of the NPS.

Celebrating the 100th California Naturalist class

How did we get here and where shall we venture together?

This spring, the 100th California Naturalist class is being offered in Sonoma County – the very same county where we first piloted the curriculum. The UC Agriculture and Natural Resources California Naturalist Program is designed to introduce Californians to the wonders of our unique ecology and engage the public in study and stewardship of California's natural communities. The program mission is to foster a diverse community of naturalists and promote stewardship of California's natural resources through education and service. California Naturalist certification courses combine classroom and field experience in science, problem-solving, communication training and community service. Students are taught by an instructor and team of experts who are affiliated with the University of California, local nature-based centers, community colleges,  land trusts, or natural resource focused agencies such as California State Parks and cooperating “friends groups.”

A California Naturalist explores the creek.

What inspired the first California Naturalist class? Georgia, Florida, Texas and 22 other states have Master Naturalist-like programs, so why not California? After all, California is a global biodiversity hotspot filled with nature enthusiasts. It took a volunteer, Julia Fetherston, to get excited about the potential for a California program before our director Adina Merenlender was convinced to attend the 2005 National Master Naturalist Annual Conference in Estes Park, Colo. She was impressed with the impact these programs were having and decided to see what we could do in the Golden State. A good deal of effort followed to advance the cause within UC, secure grant funding, write the California Naturalist Handbook, develop ways to work with organizations across the state, and build a team to run California Naturalist. In 2012, we officially launched the program with five intrepid institutional partners (Santa Rosa Junior College/Pepperwood Foundation, Pacific Grove Museum of Natural History, UC Santa Cruz Arboretum, UC Berkeley Sagehen Creek Field Station, and Santa Barbara Botanical Garden). Four years later California Naturalist received Program of the Year from the national network, the Alliance of Natural Resource Outreach and Service Programs.

The 100th California Naturalist class is being offered at Stewards of the Coast and Redwood this spring. Stewards of the Coast and Redwoods is a non-profit, environmental and interpretive organization that works in partnership with California State Parks in the Russian River Sector of the Sonoma Mendocino Coast District to support volunteer, education and stewardship programs. Participants in this year's spring class have worked hard on a wide range of capstone projects, including multiple wildlife monitoring citizen science projects, improving fish habitat in the watershed, and creating educational materials on ticks, wetland birds, water quality and more. Co-instructors Meghan Walla-Murphy and David Berman have been teaching California Naturalist courses since 2013, first with Occidental Arts and Ecology Center and now with Stewards. Meghan is the author of Fishing on the Russian River and a well-respected wildlife tracker whose workshops are not to be missed. David is an extraordinary environmental educator, watershed expert, and Project Wild facilitator with the Sonoma County Water Agency.

 

2017 Stewards of the Coast & Redwoods class at their Bodega Dunes campout.

Now that we have 100 classes under our belt, oh, the places we can go! California Naturalist is a community of practice started deliberately with the goal of gaining natural history knowledge. We are working on releasing a citizen science challenge to provide an opportunity for California Naturalists to discover more about California's ecosystems - Discovery!

Surveys show that California Naturalists feel more empowered to address environmental challenges after their training and knowing they can lean on their fellow naturalists. We would like to know more about how California Naturalists are participating in civic engagement. With a new volunteer management system on the horizon, we plan to learn more about the many ways Naturalists are becoming involved in issues that affect their communities. - Action!

In particular, what activities are Naturalists doing that will help communities and natural ecosystems be more resilient to climate change – improving habitat connectivity, restoring riparian areas, or pre/post fire management?  We are looking for support to start an advanced training aimed at helping today's climate stewards learn more about climate science and adaptation to support their efforts on climate-wise - Stewardship!

Congratulations to the graduates of the 100th California Naturalist class and all those who went before you.

Naturalists from the Mountains Recreation and Conservation Authority's Bridge to Park Careers program.
Posted on Monday, April 17, 2017 at 8:55 AM

Feeling welcome in nature is essential to caring and wanting to learn more

“Feeling welcome in nature is essential to caring and wanting to learn more.” José González (Latino Outdoors), Plenary speaker at the UC California Naturalist conference 

Listening to Tom Ramos and his family who are Yuhaviatam, people of the pines, welcome all the naturalists to their land and share the sacred big horn sheep song was a wonderful way to honor the fact that native people are still here (Mütu č iip qac) and have a rich traditional ecological knowledge to share. This and all of the shared experiences that followed at the 2016 California Naturalist Conference reveal the enthusiasm this growing community has for nature and their dedication to paying attention to natural wonders. Author and artist John Muir Laws affirms that nature can be fascinating wherever you are. With a pine cone in hand we all noticed, wondered, and discussed what the cone reminded us of - "a cobra ready to strike" or "beaver tails going into a hole."

San Manuel Bird Singers from the San Manuel Band of Mission Indians welcome naturalists to their land at the opening ceremony.

Meeting in the San Bernardino Mountains surrounded by conifers and endemic plants and just a stone's throw from the Southern California urban core, California Naturalists and world-class experts gathered to learn from one another. Naturalists are leading efforts to strengthen local community stewardship efforts and engaging the public in citizen science. The Natural History Museum of Los Angeles, among others, is extending the power of citizen science for cataloging local biodiversity and the LA Neighborhood Land Trust is working to provide green space to those who are living without access to nature. The power that art has to connect with nature was illustrated by Elkpen's poignant signage reminding Angelenos that grizzlies once roamed where they now live and black pheobes can still be found locally. All of these actions on the ground help build resilient communities and landscapes in the face of the global change scenarios that were presented.  

Naturalists at the closing ceremony.

“UC California Naturalist is creating a vibrant, thriving, inclusive environmental movement for the 21st century.” Jon Christensen (UCLA), Plenary speaker at the UC California Naturalist conference

Thanks to conference sponsors, trainers, speakers, instructors, and our organizing committee, California Naturalists from all walks of life had a chance to meet one another, become familiar with new directions in environmental science, conservation, and communication, and share their enthusiasm for nature. We hosted over 275 participants and provided 60 scholarships to attending California Naturalists. Several attendees and organizations received well-deserved awards ranging from the individual with the most volunteer hours in 2015 (Melinda Frost-Hurzel from Sierra Streams Institute, 760) to the most iNaturalist observations by a California Naturalist partner project (Pasadena City College, 13,383), and the partner with the most trained California Naturalists (UCSC Arboretum, 145) with an important shout out to everyone for becoming a California Naturalist and working to strengthen our network.

The information sharing was powerful but perhaps the most important outcome was the opportunity for kindred spirits to share the weekend, forge new and lasting relationships, and learn how we can best set future collaborations in motion. The value of providing access to the California Naturalist program and working to make everyone feel welcome really paid off in the interactions we had star gazing, sharing at the poster session, and on the field trips.

The California Naturalist community of practice shares a passion for learning together and providing service to nature and environmental science. The 2016 conference showed that working together, we can include participation from Californians of all ages and backgrounds to foster discovery, action, and stewardship on behalf of nature.

Naturalists explore Whitewater Preserve.
Posted on Tuesday, October 4, 2016 at 9:30 AM

Next 5 stories | Last story

 
E-mail
 
Webmaster Email: jewarnert@ucanr.edu