Featured Scientist

Erin gets some hands-on experience working with a San Joaquin kit fox.

Tiny radio collars are affixed to blunt-nosed leopard lizards as part of CDFW’s research into the lizards’ habitat preferences on several San Joaquin Valley ecological reserves where they are found.

Kayaking near Pismo Beach.

Erin participated in a 2014 CDFW Kern County women’s pheasant hunt as part of her ongoing effort to develop her hunting skills.

Erin and her husband, John Wang, enjoy a hike on Santa Cruz Island off the Southern California coast.

CDFW Environmental Scientist Erin Tennant lives and works out of her hometown of Bakersfield. She is assigned to CDFW’s Lands Program, where she assists CDFW’s Central Region in the management of tens of thousands of acres of wildlife habitat in 12 counties in the middle of the state.

Erin holds a bachelor’s degree in biology and environmental studies from Whitman College in Washington and a master’s degree in biology from California State University, Bakersfield, where she studied the Tipton kangaroo rat for her graduate thesis.

What prompted your interest in science and the outdoors?

I became interested just by being young and inquisitive about the natural world. I grew up in suburbia, but I spent a lot of time as a kid working in the garden with my mom. My mom was a second-grade teacher and used to take her classes on annual trips to visit spring wildflowers and, of course, I would join. I also was a horse-crazy kid and thought for a long time that I wanted to be a veterinarian. From about age 10 on, you could definitely find me at the horse barn after school and on weekends. I rode competitively, but I’d also just go out on rides with all my friends through the agricultural fields. I just loved being outside. I had no idea “wildlife biologist” was a career until I entered college and started taking environmental studies courses.

Who or what brought you to CDFW?

I got my start as a biologist when I was home on spring break from college and had a dentist appointment. I was in the waiting room and there was this Smithsonian magazine with a big feature story on the San Joaquin kit fox and all the research work a group called the Endangered Species Recovery Program was doing in Bakersfield. I was just shocked. That was exactly the kind of work I wanted to do and it was happening right here in my hometown. I started Googling all the people in the article and started e-mailing them and asking about internships and other opportunities to just volunteer and help out. It worked. I spent two summers working as an intern for the Endangered Species Recovery Program in Bakersfield and made all kinds of great connections and relationships as a result.

When I graduated from college and eventually returned to Bakersfield, Ellen Cypher, a former CDFW botanist in Fresno, was looking for a scientific aide. She hired me in 2006. I was working for CDFW and at the Endangered Species Recovery Program at the same time until I got a contract position with CDFW in 2007. I was hired permanently as an environmental scientist for the Lands Program in 2011. 

What do you like best about your job?

I really like the diversity. No day is really the same. We’re always working on new projects and have focused on research the last few years. I like to say that our Lands Program in the Central Region straddles many different department priorities – land management, threatened and endangered species conservation, non-game species conservation and even habitat conservation planning. There are endless opportunities available for restoration, research, outreach and even recreation on ecological reserves, which means that there are endless opportunities for professional growth, too. Plus, our unit is always trying to be innovative and adaptive in how we do things. With very limited budgets and personnel and a huge area to cover, this often requires a lot of creativity.

What interesting projects are you working on currently?

One project I have been working on the last three years is the blunt-nosed leopard lizard, which is a federally listed and state listed endangered species. We’re looking at their population size, demographics and space use on our ecological reserves to try to figure out how to better manage the reserves for them.

I have met lots of people who do not like lizards – maybe they think they are ugly and spiny – but blunt-nosed leopard lizards are very charismatic, beautiful lizards. In total length they can be over a foot long and they are active during the day. They especially like the early mornings in the Valley before it gets too hot. They’re really striking in their full breeding colors. Females have bright orange spots and males turn a salmon color throughout their bodies. They’re really fun to watch during the breeding season. 

I also have been working on a statewide Swainson’s hawk survey. We’re gearing up for a big survey year and I’m helping to lead the San Joaquin Valley effort.

What should we know about the Swainson’s hawk?

They’re a state-threatened species, and we’re conducting the first formal population survey in 10 years. It’s a team effort, and we are collaborating with Region 2 and our statewide raptor coordinator, Carie Battistone, to complete the survey. At least in the San Joaquin Valley, it seems like we are seeing more Swainson’s hawks, but we need data to determine if our suspicions are accurate. 

They’re fascinating because they breed throughout Central Valley but they spend their winters in South America, primarily in Argentina. They are readily able to use some of the agricultural areas around the San Joaquin Valley to find food, breed and rear their young. Then they make an incredible migration – they are one of the few raptors to migrate so far. They form these huge groups, called kettles, in the fall, especially in the agricultural fields like alfalfa, and there will be hundreds of these hawks flocking and foraging together in preparation for their migration. It’s amazing to watch.

It sounds like there may be more wildlife and habitat around Bakersfield than the average Californian realizes.

I grew up in Bakersfield, and one of the reasons I wanted to come back here was because I felt drawn to contribute to the conservation of local wildlife around my hometown. Growing up here, you hear a lot about agriculture and how this area is one of the top-producing agricultural areas in the world. But you don’t learn much in school – at least I didn’t – about the native wildlife and their habitats. One thing that struck me during my environmental studies field courses in college was that very few biologists stay in one place long enough to know and understand that place. After going away to college and traveling a ton after graduation, I was ready to come back to Bakersfield and contribute to environmental conservation in my hometown.

I think what’s unique about this area is that it really is a desert and, because of our geography, we have many endemic species. When you get down to the habitats, you see that all the species found here are desert-adapted. We have species such as the Bakersfield cactus, kangaroo rats, blunt-nosed leopard lizards and kit foxes. These are all species also found in places like the Mojave Desert. Desert ecosystems are very fragile and there are so few places around Bakersfield where you can see really what would’ve been – what the San Joaquin Valley would have looked like without development and without agriculture – that I think protecting those places and learning about those places and encouraging other people to get to know those places is really important.

Can you point us to a place where someone might see what the San Joaquin Valley looked like long ago?

One place that I always recommend to visit is the Carrizo Plains – both the Carrizo Plains National Monument and the Carrizo Plains Ecological Reserve. It is a great place to get a glimpse of what the San Joaquin Valley might have looked like historically. It’s a really beautiful place, especially in the spring. In wet years, there are lots of wildflowers to see. There are several overlooks in the area, and I love to go where you can stare down on the valley floor below and imagine what the San Joaquin Valley looked like before agriculture. It’s great to have that area protected.

Tell us something about yourself many people would be surprised to learn.

Most people are surprised to learn that I lived in China for two years. After I finished my undergraduate degree, I joined an exchange program through my college and taught English at Northwest Polytechnical University in Xi’an, which is in the center of China. I met my husband there, and after a very long and winding journey, which involved many years of long-distance, we eventually landed in Bakersfield together two years ago. Our family grew this fall with the birth of our son, Kian.

Erin Tennant Photos. Top Photo: Erin holds a great horned owlet that was banded as part of a raptor research project in the Tehachapi Mountains.

Wildlife training with a mountain lion at CDFW’s Wildlife Investigations Lab outside of Sacramento.


John climbs redwoods at Hendy Woods State Park in Mendocino County.


Wildlife biologist by day, rock guitarist by night in the band Sticky’s Backyard.


John with wife, Trish, and daughters Phoenix (left) and Sequoia.


Mountain biker John near Lake Almanor.


Snowboarders’ expert runs have the best views

Wildlife biologist John Krause is a 17-year CDFW employee who serves Marin, Alameda and Contra Costa counties. In the heavily populated San Francisco Bay Area, human-wildlife issues often dominate his workday. But his professional pride and joy is the Eden Landing Ecological Reserve near Hayward. John has spent his career overseeing the restoration of 6,400 acres of commercial salt ponds to tidal marsh and other natural habitat while creating access and recreational opportunities for the public.

A native of Carmichael in Sacramento County, John holds a degree in terrestrial plant ecology from UC Davis.

Do you find it ironic that you are a wildlife biologist working in some of the most urbanized communities in the country?

Sure, at times. When I took this job back in 2001, I did not really know how much of the human dimension aspect of things I would be getting into. It’s a regular part of the job, dealing with the public about everything from “Where can I go hunt?” to “I’ve got a problem with a coyote in my backyard.”

How much of your time is spent dealing with human-wildlife conflicts?

It’s every day. A lot of it is depredation-related calls from the public – wild pigs, wild turkeys in the urban-wildlife interface, occasionally deer out in the vineyards causing property damage. There are regular calls about coyotes being perceived as a public safety risk, though coyotes are really more of a risk to domestic animals like cats, small dogs and backyard, free-ranging chickens. The number of these incidents is definitely increasing, primarily because we have open space immediately adjacent to these metropolitan areas. Many of these communities are tucked into the natural landscape so they are inextricably linked to the landscape.

Many people today just don’t have the background or understanding about the behavior of these wild critters. Our general message is to leave these critters be. But when wildlife becomes a nuisance, then it’s time to step up and make an effort to discourage that behavior. That might mean building a coop for your free-range chickens, hazing a coyote out of a neighborhood or thinking carefully about the kind of landscaping you are installing in your yard.

What prompted your interest in science and the outdoors?

I grew up on the American River. I had friends who lived right out there on the bluffs so as kids we were out there all the time biking around and hiking around, swimming in the river, going fishing.

I was a pre-med student originally. I thought I was going to go to professional school to be a dentist. My motivation as a kid was “I’ll be a dentist and I’ll be rich!” But I realized over time that wasn’t for me. I didn’t want to spend my life looking into people’s mouths. So I got into this career by thinking about what it was that I really cared about.

What brought you to CDFW and what inspires you to stay?

I was a biologist for Caltrans for two and a half years before I came to the department. I learned a lot at Caltrans – really useful stuff like reading plans and working with engineers that has served me well over the years with the wetland restoration work I do now. I was out on construction jobs in the Santa Cruz Mountains and there were all these issues coming up with listed species. It was great training. But ultimately, I wanted to work for a conservation agency instead of doing conservation work for a transportation agency.

This job was advertised and I was all over it. Counting deer and elk by helicopter or by driving out to remote areas to survey? Working in and managing wetlands for waterfowl and shorebirds or endangered mice? Counting rails by airboat? Yes, please! The work is really diverse, and I think that’s what keeps me so engaged. And I have this really cool project I get to work on – my legacy project, Eden Landing. I will hand it off to somebody else at some point and they will have a whole career finishing it off.

What is special about the Eden Landing Ecological Reserve?

It’s part of the largest wetlands restoration on the West Coast – 15,100 acres in the South Bay. It’s what I studied in college. Landscape change over time. We are restoring salt ponds to tidal marshes, keeping some managed ponds that birds have come to rely upon. It’s a 50-year project that started in 2003. I’m the guy on the ground working with all of our contractors and partners.

The water birds are the real stars of the show out there. They are the poster species for nature. We manage the ponds for the different seasons and bird species. I will go out and take a dry pond that has been set aside for snowy plover nesting in the spring, flood it up in late summer and watch the bugs come back. And a couple of weeks later the shorebirds show up and are taking advantage of it. And then later in the year we transition from shorebirds to ducks and we start flooding it up a little more for ducks. We’ve got shallower ponds for the dabblers and deeper water for the diving ducks.

Is there public access for birders and others at Eden Landing?

Absolutely. Public access is part of our mandate. We’ve got 4 miles of trails. We’ve got anglers out there. We’ve got kayaking and a kayak launch out there. I started the waterfowl hunting program there and we are just wrapping up our 14th waterfowl season. It’s a success in many ways.

What’s the story behind the waterfowl hunting program? It’s unique in that it is free, for one thing, and you allow hunting on some non-typical shoot days such as Tuesdays and Thursdays.

Hunters have to buy their license and state and federal duck stamps, but they don’t have to buy a lands pass for Eden Landing. San Francisco Bay has a long history and tradition of duck hunting and we wanted to continue that at Eden Landing. When Cargill owned the property, they leased out ponds and hunters built duck blinds and had duck hunting out there for decades. When CDFW took it over, we made it accessible to the public. We now host about 10 hunt days annually.

The South Bay federal wildlife refuges allow hunting on Wednesdays, Saturdays and Sundays. I wanted to provide more opportunities for hunters when those wildlife areas are closed so I added shoot days on Tuesdays and Thursdays. We get a lot of local hunters, and we see new hunters every year. Eden is getting pretty well-known in the hunting community, and our averages are pretty good for people coming out and getting birds – better than the wildlife areas and refuges a lot of the time. The hunters really appreciate that their dollars are supporting the restoration and enhancement of Bay-Delta wetlands.

Away from work, where are we likely to find you?

My wife and I have two young girls, 13 and 11. I’m an outdoor sports person. I mountain bike all the time. I go hiking. I love snowboarding. I’ve been snowboarding since 1984 – back before snowboarding was even a thing. I love to travel. My wife and I have been all over the world and have visited countries in Europe, Central America and Africa. More recently, my family has traveled in America, Mexico and Canada.

Tell us something about yourself many people would be surprised to learn.

I’m in a band. I play rhythm guitar and sing back-up vocals with friends I met in college. The band is called Sticky’s Backyard – Sticky was the nickname of a guy in Davis and we played our first gig in his backyard. That was 26 years ago, and we are still together. We play all original music. Jam rock is the best way I can describe it. We played the Lucasfilm employee holiday party in December. It’s a fun outlet – scientist by day, rocker by night. Sometimes those days and nights blend together.

John Krause photos
Top photo: John welcomes U.S. Senator Dianne Feinstein to the South Bay’s salt ponds in 2010, where native habitat was being restored and public access opened for the first time.

Morgan Knechtle is an environmental scientist with CDFW’s Northern Region in Yreka. He works on the Klamath River Project, which has a primary focus of estimating the return of adult salmon and steelhead to the Klamath and Trinity rivers. He is responsible for multiple field projects that manage salmonids in the Klamath River Basin, such as operating adult salmonid counting stations and coordinating adult spawning ground surveys on the Shasta River, Scott River and Bogus Creek, three highly productive salmonid tributaries to the Klamath River in Siskiyou County. Knechtle also assists with adult recovery efforts, which involve collecting biological information from returning adult salmon at Iron Gate Hatchery, and serves as one of CDFW’s technical representatives for the Klamath Dam Decommissioning Project, which involves the proposed elimination of four hydroelectric dams in northern California and Southern Oregon.

Knechtle earned a Bachelor of Science degree in freshwater fisheries from Humboldt State University and got his first job with CDFW as a scientific aide in the Russian River watershed. He was hired permanently in 2000 and spent four years working on salmonid life cycle monitoring stations on the Mendocino coast. Since 2004, he has worked with salmonids in the Klamath Basin, both on the Trinity River and in the tributaries to the Klamath River in Siskiyou County.

Who or what inspired you to become a scientist?

My love for rivers inspired me to become a scientist. During college at Humboldt State University, I was spending all of my free time fishing for salmon and steelhead and came to the realization that I could study these animals and make a living working with them.

The ability to be an advocate for fishery resources brought me to CDFW. CDFW is one of the only places a scientist can work with fisheries and truly be an objective voice for the resource. Many other organizations do not have this luxury.

What is a typical day like for you at work?

It depends on the time of year. During the fall and winter when adult salmonids are returning to the Klamath River, my world is extremely busy running and participating in multiple field projects monitoring the return of these amazing species. During the spring and summer, I spend much more time in the office crunching numbers and writing reports.

My Chinook salmon work focuses on providing information that can help accurately forecast abundance. This enables us to provide fishing opportunities while maintaining enough fish in the river for future generations. My coho salmon monitoring work focuses on providing accurate abundance information to track the status and trends of this endangered species over time.

As a technical expert on the Klamath Dam Decommissioning Project, in cooperation with other technical experts from other state and federal agencies, I help minimize effects to aquatic species inhabiting the Klamath River during the decommissioning phase of the project. Additionally, I participate in post-dam removal planning projects, including creating plans on how to implement the Iron Gate Hatchery post dam removal and coordinate with Oregon scientists on the reintroduction of salmon above Iron Gate Dam, with a goal of ensuring the recovery of salmonids and aquatic species above the project area.

What is the most rewarding project that you have worked on for CDFW?

Although the project is not yet complete, the Klamath Dam Decommissioning Project has the potential to be the most rewarding project I have worked on. It stands to be the largest river restoration project to ever be completed in North America, and given that status, as one can imagine, the project has a lot of moving parts. The potential benefits to salmonids in the Klamath and the improvements to the health of the river itself could be enormous. The long-term predicted improvements to water quality, habitat availability, natural flow dynamics and restoration of natural processes to the Klamath River will improve conditions, for not only anadromous salmon and steelhead but also the rest of the plant and animal community that depend on the river for part or all of their life history.

What is the most challenging aspect of your career as an environmental scientist?

It is extremely challenging when social and political concerns get mixed in with natural resource management. Working with coho salmon in the Klamath Basin has been very challenging due to its listed status and the fact that their abundance is extremely low.

If you had free reign and unlimited funding, what scientific project would you most like to do?

With unlimited funding, I would like to track and monitor the recovery of spring Chinook in the upper Klamath River post dam removal. They are nearly extinct and they are thought to once have been the most abundant species in the Klamath River Basin.

What aspect of working on the Klamath River is particularly challenging or rewarding?

Multiple stakeholders -- which include Native American tribes, federal and state trustee agencies, and freshwater and ocean anglers -- in the Klamath Basin make some aspects of salmon management challenging. However, when progress is made to restore the river, it is also extremely rewarding because you know that groups with very different perspectives have come together, negotiated agreement and reached consensus on difficult issues.

What is your favorite species to interact with or study?

Steelhead trout are my favorite species to work with. Steelhead are the most elusive of the Klamath salmonids and their complex life history make them a very difficult species to study. They are also my favorite fish to catch.

Any advice for people considering careers in science or natural resources?

The most obvious is for folks to stay in school and graduate from college. In addition, volunteering and interning in their field of interest early in their education is a benefit to get a taste of what the career might really be like.

CDFW photos of Morgan Knechtle working along the Shasta River.