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: California Naturalist

Connect more deeply with nature and contribute to a greater good

Have you ever been on a walk and observed an interesting plant you couldn't identify? Encountered an unusual insect trapped in your home?  Have you noticed you used to see certain species in nature that you don't now? Or have you thought it might be neat to compile a species list for a special place, like a favorite park or your own backyard?

There's an app (and website) for all that!

The free iNaturalist app is an online social network of people sharing biodiversity information to help each other learn about nature. Available for android, iPhone, and by a website, iNaturalist is a joint initiative by the California Academy of Sciences and the National Geographic Society that allows users to upload one or more pictures, provide a location, and make relevant notes like whether the subject is captivate or wild.

In response, the artificial intelligence in the app suggests what the species might be based on visual similarity and whether the species has ever been observed nearby. Once the observer has made an ID, the observation is available on the web for the world to see and verify or dispute via crowdsourcing. The individuals that verify observations are often experts in their particular field who leave encouraging messages or identification tips about the observation to help the original observer. Members and organizations can set up projects and download data within defined taxa or locations to follow presence and absence, abundance, seasonality and change over time.

Verified observations are sent to the Global Biodiversity Information Facility, an international network and research infrastructure funded by the world's governments and aimed at providing anyone, anywhere, open access to data about all types of life on Earth. Valuable open-source data is available to aid scientific research, government and conservation organizations, and the interested public. Nearly instant gratification for species ID combined with the ability of members to contribute to a greater good whenever they venture outdoors are huge motivators for much of the existing iNaturalist community which currently exceeds one million users and 14 million observations.

California Naturalists (USC Sea Grant and LA Conservation Corps Sea Lab) document a harlequin bug on iNaturalist

In a world where the term “nature deficit disorder,” coined by Richard Louv, author of Last Child in the Woods, is widely understood to refer to the modern maladies that occur as a broken bond between children and nature, we need to provide culturally and contextually relevant outdoor exploration time for kids. Many children love technology, and in response iNaturalist recently developed the Seek app, which differs from iNaturalist in its safety features where no user data or location information is gathered or stored. Kids make observations in the same way, but they can collect badges and learn facts about the nearby biota.

The UC Agriculture and Natural Resources California Naturalist Program has required participants to join iNaturalist and log at least one observation during their certification coursework since the inception of the program. To understand and protect California's unique natural resources, we need all the information we can gather across many different disciplines. Community or citizen science is one crowd-sourced approach to gathering that information, and iNaturalist is one useful tool in a broad toolkit.

While some individuals don't feel that technology has a place in the observation of natural history, through the use of iNaturalist, many others have had the opportunity to deepen their knowledge of their local area, create online journal pages, keep species lists, contribute to specific iNaturalist observation projects of their favorite organizations, and participate in BioBlitzes with other community scientists across the state. Our partner organizations benefit from the concentrated focus on their land, the discovery of new species, and the long-term data sets that accrue. The UCANR Hopland Research and Extension Center's 5,500-acre iNaturalist project, initiated in 2013, boasts 1,075 observations of 498 species. 

This review of iNaturalist isn't an ad, but a testament to the power of the iNaturalist community to assist with conservation efforts globally. Used by an individual, it can be a simple social tool to learn more about nature and find others that also think certain species and places are special. Used by an organization, iNaturalist can assist with data collection, training, and naturalist recruitment. Globally, iNaturalist is a powerful way to connect humans more deeply to nature and generate scientifically valuable biodiversity data from personal observations.

The UC ANR Hopland Research and Extension Center's 5,500 acre iNaturalist project boasts 1,075 observations of of 498 species.
Posted on Wednesday, August 22, 2018 at 8:41 AM
Focus Area Tags: Environment

Opportunity knocks for aspiring naturalists in California

The California Naturalist program will be offered in an eight-day immersion course in Cambria this month, and in a slower-paced eight-week program that starts in September in San Luis Obispo, reported Michele Roest in the San Luis Obispo Tribune. California Naturalist sessions begin in September in a wide range of California locations, including Pasadena, Santa Barbara, Sacramento and Yosemite National Park.

In all cases, fulfilling the course requirements will allow participants to join the growing ranks of California Naturalists in the Golden State, which number nearly 2,000.

The California Naturalist training involves both classroom and field sessions.

In her article, Roest likens California Naturalists to the well-known UC Master Gardeners. Master Gardener volunteers share research-based gardening information with the public. California Naturalists extend information to the public about natural California. The CalNat program also offers volunteers the opportunity to participate in nature-based activities in other capacities, such as citizen science, service to partner organizations or hands-on conservation.

The eight-day class in Cambria, Roest wrote, provides comprehensive information on "everything from algae to zebras." Zebras in California? There are a few who wander the land around Hearst Castle along Highway 1, descendants of zebras brought to San Simeon by the late Randolph Hearst.

The eight week program is offered in collaboration with Cuesta College. 

"The program is ideal for adults who want to strengthen their knowledge and understanding of California's natural history," the article said. 

It's a resume-builder for those seeking jobs in environmental fields, and includes the option of four units of transferable UC credit for students.

Posted on Friday, August 17, 2018 at 9:40 AM
Focus Area Tags: Environment

UC California Naturalists interpret nature with art

Art is an expression of creativity, a conveyance of beauty, and for naturalists, it is a way to process, remember and interpret nature.

Many branches of nature art are popular, such as photography, painting and sketching. The UC California Naturalist Regional Rendezvous in October introduced an old but uncommon method for documenting natural objects – cyanotype.

A completed cyanotype print.
Cyanotype is a photographic printing process invented in the mid-1800s. It is best known as the long-time technique for duplicating building designs and the reason they are still called “blue prints.” Now the deep cyan blue can be an artistic backdrop to the interesting shapes and forms of natural treasures.

At the CalNat Rendezvous at the Pepperwood Preserve, Santa Rosa artist Jessica Layton taught the cyanotype process to volunteers certified by the UC California Naturalist program, giving them a new tool to use in educating and engaging children and adults in conservation organizations they work with around the state.

The cyanotype process begins by mixing two chemicals - ferric ammonium citrate and potassium ferricyanide – to create the blue photo reactive solution. The chemicals may be purchased at art stores and online by searching for cyanotype solutions.

California Naturalists paint on the cyanotype solution in a darkened room.

Once blended, the chemicals are painted on paper or cotton cloth and allowed to dry. Leaves, grasses, seeds, pine cones, flowers, stones – any number of natural objects collected outside may be artfully arranged on the blue background and, if needed, held in place with a pane of glass.

The project is then set out in bright sunlight for 5 to 7 minutes, brought back inside to be washed in clean water and allowed to dry. The areas of the paper or cloth exposed to the sun are a radiant lapis blue; the areas that were shaded by the natural objects appear in silhouette.

Director of the UC California Naturalist program, Adina Merenlender, collects natural objects at Pepperwood Preserve for making cyanotype art.
The director of the UC California Naturalist Program, Adina Merenlender, participated in the cyanotype training.

“I have come to appreciate art as a way to improve observation skills and deepen an appreciation for nature,” Merenlender said. “We offered this session to our volunteers for them to improve their capacity and become better naturalists.”

Artist Jessica Layton, left, shows a cyanotype mural project made by the group. The fabric was commercially treated with the cyanotype solutions and captured the silhouettes of a wide variety of objects, including feathers, hands, sunglasses and a water bottle.
 
California Naturalist Kat Green said she's seen cyanotype before and always wanted to try it, so jumped at the chance to practice the project at the CalNat Regional Rendezvous.
 
"Different people connect with nature in different ways," Greene said. "I don't have an artistic knack, so being able to share this experience with people allows me to connect with them in a way I couldn't connect otherwise."
Posted on Thursday, October 19, 2017 at 10:15 AM
Tags: art (1), California Naturalist (28), nature (5)

Hybrid oak trees muddle identification at California Naturalist Regional Rendezvous

Knowing the names of trees is a point of pride for many California Naturalists. So a walk among the diversity of oaks at the Pepperwood Preserve left many feeling humbled.

The three-hour excursion was part of the UC California Naturalist Regional Rendezvous in October at the 3,200-acre nature preserve nestled in the foothills between Napa Valley and Santa Rosa.

Excursion leader Steve Barnhart, academic director emeritus at Pepperwood, said there are 500 oak species in the world; 21 in California. But cohabitating on the rolling hills and valleys of the Golden State, many oaks have produced hybrids that combine characteristics, making identification challenging.

Steve Barnhart opens the 'Oaks of Pepperwood' excursion during the California Naturalist Regional Rendezvous.

Doctoral candidate Phrahlada Papper, who is studying oak tree genetics, said, “I'm of the mind that you shouldn't ever name an oak.”

Even the tan oak, long thought to be misnamed, is coming under new scrutiny.

“It's not an oak,” Barnhart said. “It has acorns, male and female flowers on the same stalk, but tan oaks are insect pollinated. True oaks are wind pollinated. Tan oaks are closer to chestnuts.”

But Papper raised his hand. “Genetically, it might be an oak,” he said.

Barnhart laughed. “So tan oak is up in the air. That's why it's so much fun to be in science,” he said. “I learned something today.”

Doctoral student Phrahlada Papper discusses oak tree genetics.

In popular culture, oaks are thought to be majestic, towering trees, with wide spreading branches. However, Barnhart said, most California oaks are shrubs, including the leather oak.

Leather oaks grow in serpentine soils and have the ability to produce two types of flowers, one in the spring and another quite different in the fall. Leather oaks are monoecious, they have both male and female flowers on the same plant. On a particular leather oak at Pepperwood, Papper was surprised to find male and female flower parts in one bract and surmised that weather patterns may be responsible.

“California has weird weather and with climate change, it's getting even more weird,” Papper said.

Leather oak details.

Papper believes tracking phenology, the cyclic and seasonal changes in plants, is an ideal citizen science project for California Naturalists. One such project underway at Pepperwood is led by Wendy Herniman. A University of Edinburgh, Scotland, master's student, Heniman is documenting the phenology of 10 Pepperwood oak trees: 2 blue oaks, 3 coast live oaks, 2 black oaks and 3 Oregon oaks.

“Pepperwood is looking at climate change. It's a designated sentinel site. We're monitoring fog, we have soil probes, and we're collecting all weather and climate information. We can tie that to phenology,” she said. “We're trying to find out if phenophases are changing.”

Understanding the changing phenophases is important, Barnhart said.

“Everything is connected,” he said. “If acorns are produced early, animals species that depend on the food source will be disrupted. You have imbalances in the timing of the natural world. With climate change, what are the effects we'll be seeing?”

Wendy Heniman talks about her research near a hybrid Oregon-blue oak.
 
The acorn shape is Oregon oak-like. The leaf contours are blue oak-like. The specimen is evidence of hybridization in oaks.
 
California native poison oak is also found on the Pepperwood Preserve. It is unpopular with humans, but birds like the golden berries.
A 15-year-old Douglas fir was mechanically removed to stop it from crowding a 50- to 60-year-old oak tree, Steve Barnhart said. Fire suppression is giving oak competitors like firs a greater foothold in oak woodlands. "Fire suppression was an unhealthy thing to do," Barnhart said.
Posted on Monday, October 16, 2017 at 1:30 PM
Tags: California Naturalist (28), oaks (1)

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.

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