College of Natural Resources, UC Berkeley

News & Events

January 23, 2004

Researcher Helps Communities Challenge Polluters

by Kelly Hill

In New Sarpy, Louisiana, residents live near and downwind from three petrochemical plants. Each year, the refineries release tons of pollution into the air and water of the surrounding communities.

While most of the releases are permitted by law, regulations limit them (by both amount and kind) to protect public health. But nearby residents may be the first to notice when an unhealthy level of chemicals is released. The companies don’t always agree, dismissing residents’ complaints of odor and illness as attributable to other causes.

College of Natural Resources Assistant Professor Dara O’Rourke is helping residents back up their complaints with science. His recent research is intended to assess whether environmental regulation can be democratized, in order to become more transparent and effective.

He examined situations with the Shell and Orion facilities in New Sarpy; with an Exxon refinery in Chalmette, Louisiana; and in the Greenpoint-Williamsburg section of Brooklyn, which has a pollution problem caused by the many trash-transfer stations for waste coming from Manhattan.

In each place, residents worked with local nonprofit groups to use various methods of monitoring to try to keep track of contaminants in their environment. Since the citizens had little or no technical expertise, the sampling ranged from low-tech to high-tech.

Sometimes residents kept written “sniffer logs” in which they
recorded the time, date, and locations where they smelled odd odors, and also recorded any resulting physical symptoms, such as watery eyes, nausea, or respiratory ailments.

O’Rourke said that although the sniffer logs are low-tech, companies have been known to cut the number of releases simply because they know the releases are being tracked.

Some communities have formed “bucket brigades” of residents trained to use a five-gallon paint bucket, a pump, and a sterile bag to grab air samples whenever they suspect a toxic release has occurred. [Berkeleyan Editor’s note: Similar “brigades” have been formed in the East Bay communities of Richmond,
Crockett, and Rodeo in response to frequent toxic releases from the nearby Chevron and Unocal facilities.] The samples can be analyzed for volatile organic compounds or sulfur compounds, which would be expected from a petrochemical plant. Then it can be determined if spikes in chemical levels correlate to the releases, which companies must report to environmental officials. Other testers employ expensive, handheld readers.

Before residents could do their own tests, O’Rourke says, they had no way to contest a company’s claim that even if there had been a release, it was harmless.

“It was basically the community saying, ‘It smelled bad and we felt bad,’” he says. “Now, with the bucket brigades, they can say, ‘No, it wasn’t just steam or smoke. It was methyl ethyl ketone. We know that there are things in the release that are chemicals of concern.’”

Improving citizens’ knowledge and giving them an active way to participate in regulation, O’Rourke says, raises awareness and gives them a stronger voice in debates with regulators,
companies, and activist groups. It also puts additional pressure on the government to do a more thorough job of monitoring and inspections, and on firms to police themselves better. In general, that leads to more complaints when environmental violations occur, and more enforcement, he says.

But however promising it might seem to combine citizens’ efforts with governmental regulation and firms’ cooperation, there are many roadblocks. Some state environmental agencies, such as Louisiana’s, are skeptical of data from the bucket brigades. “Citizens often don’t have the time or energy to do long-term monitoring,” O’Rourke notes.

“The high-tech equipment is expensive, and the usefulness of the data varies.” Although citizens’ data have sometimes been useful in winning settlements, they have not been successfully used to prosecute a lawsuit against a company, because state-agency data are relied upon in court to determine whether a company has violated the law. Finally, even if toxic chemicals are present, linking them directly to poor health or cancer is nearly impossible.

Still, O’Rourke says, joint environmental policing has potential to hold regulators and companies more accountable while providing community members with better information and a chance to intelligently participate in the debates that shape their health. In New Sarpy, he says, residents told him “they felt like now they had some role to play, an active role — they were no longer just victims but participants in environmental protection.”

This article appeared in the Berkeleyan. Kelly Hill is a student at the Graduate School of Journalism and an intern for the College of Natural Resources.

January 20, 2004

New at CNR v2

CNR Student to Represent Berkeley at UC Day

Inga Wilder, a junior in Microbial Biology, is one of two UC Berkeley undergraduates to represent the campus with a research poster presentation at UC Day in Sacramento on March 8-9, 2004. Her research project, "The Role of Cell-Cell Signaling in Host Plant Symptom Development by Xylella Fastidiosa," was selected among 50 applicants. Jason Melinski, who has an individual major in Environmental Policy and Investigative Journalism, will also represent Berkeley. The selected projects will be showcased at a luncheon that will be attended by legislators, alumni, and perhaps the governor. After the luncheon, the posters will be moved to the Capitol Building for one week, where they will be displayed outside the Governor's Office.

Online Discussion with Norman Borlaug and Sara Scherr

Nobel Laureate Norman Borlaug, known as the “father of the Green Revolution,” came to Berkeley last summer to meet with participants in the Beahrs Environmental Leadership Program (ELP), run by the College’s Center for Sustainable Resource Development. Borlaug’s visit was so successful that alumni of the ELP wanted to continue their conversations with him.

This week, Borlaug responded online to four questions in order to launch a listserve-based, online discussion about the Green Revolution, environmental sustainability of agriculture, globalization, and biotechnology. Dr. Sara Scherr, Executive Director of Ecoagriculture Partners, Senior Associate of Forest Trends, and member of the UN’s Hunger Task Force, provides counterpoint to Dr. Borlaug’s responses. She is co-author, with Jeff McNeeley, of Ecoagriculture: Strategies to Feed the World and Save Wild Biodiversity and a lecturer to the 2002 ELP.

State budget proposals call for an additional $12 million in cuts to the educational outreach programs at the University of California. Read about budget concerns as well as an update on City Bugs, Urban Environmental Education, and the College's other outreach success stories in the Fall Outreach Report.

Read About Inez Fung and Max Moritz

January 16, 2004

New Study Finds Evolutionary Diversification in Hawaiian Spiders


by Sarah Yang

In a new paper published in the Jan. 16 issue of Science, University of California, Berkeley, biologist Rosemary Gillespie uses genetic detective work to describe how these spiders, otherwise common streamside inhabitants throughout the world, diversified to fill an entire spectrum of habitats in the Hawaiian Islands. Along the way, she challenges the assumption that the formation of communities through evolutionary processes in the remote Hawaiian archipelago is different from the way communities are assembled through immigration on a large continent.

"The Hawaiian Islands are often considered to be so unusual and remote that what happens there cannot be applied to other places," said Gillespie, College of Natural Resources professor of insect biology, director of the Essig Museum of Entomology at UC Berkeley and author of the paper. "What I'm showing is that the same kinds of things happen on these islands as elsewhere; it's just that evolution plays more of a role."

Because Hawaii consists of a chain of islands that formed chronologically, Gillespie was able to study the spiders' adaptive radiations over time in what she calls a "natural time-series laboratory" of evolution. The oldest island, Kauai, was formed 5 million years ago, followed in age by Oahu, Molokai, Lanai, Maui and finally the big island of Hawaii, the youngest island at less than 1 million years old.

Gillespie found 16 species of Tetragnatha spiders, all of which have abandoned web building, actively hunt their prey and have long spines along their legs. By examining the spiders' DNA, she determined that the 16 species descended from one common ancestor that began life on the oldest island of Kauai 5 million years ago, early in the island's history. She studied the ecological roles of different spiders, recording their behavior patterns and noting which insects they fed upon. She also used the DNA of the spiders to create a family tree charting the evolutionary history of the Tetragnatha species in Hawaii.

The spiders can be grouped into four distinct ecological types, or ecomorphs: the "green" type, which dwells on leaves; "maroon," which lives mostly on moss; "small brown," which lives among twigs; and "large brown," which dwells on tree bark.

Gillespie found that spiders can evolve and differentiate from a single species on the same island. So, spider types on any one island were often more closely related to very different looking spiders of another ecomorph on the same island than to spiders that looked the same on other islands. For instance, a maroon type spider on Oahu is a closer relative to the green type spider on the same island than it is to a maroon type spider on Maui.

At the same time, Gillespie found that when niches become available on a new island, spiders from other islands can move in to fill the spots. For example, the small brown types dispersed as new islands formed to establish new species.

"There appears to be a race between which species can fill the empty slot in the community first," said Gillespie. "Is it going to be a similar type from another island by immigration, or a different type from the same island by evolutionary change and adaptation?"

One of the most interesting outcomes of the study was that the mountain with the highest diversity of spider species is Mt. Haleakala on Maui, a surprising finding since it is neither the oldest nor the largest mountain.

The study results suggest a possible explanation: Species colonize new islands as they form. Over the years, species keep piling on, as a result of both evolution and adaptation, resulting in more species than the land mass can actually maintain over the long term. On older islands, species jostle and compete for space and other resources until an equilibrium is reached, so that there is only a single ecological type on any of the older mountains.

The result is reminiscent of the results scientists have found when studying how mainland communities, if empty, quickly fill in as a result of immigration. Prior studies have shown that more and more species pile in until there are more than the community can hold. At that point, species compete like mad, and, after a short period, only those most adapted to living together remain. Gillespie concludes that there are fundamental similarities between the largely ecological processes that govern the formation of communities on a continent and evolutionary process that dominate community formation in the Hawaiian Islands. "This study suggests that the process of community assembly - the way niches are filled by a set of co-adapted species - is governed by universal principles," she said.

In the process of studying these spiders, Gillespie charted numerous species that had never before been documented. The varied habitat types on the islands, cold and wet areas closely juxtaposed with hot and dry, have provided a rich tapestry of species diversity. The flip side of such extraordinary diversity that evolved in isolation is its vulnerability to change and to invasive species that are now flooding in as a result of human traffic, Gillespie noted.

"The danger of species extinction is humongous in these islands," she said. "Part of what I'm doing is documenting these species, which have adapted so well to specific habitats, and which clearly play a key role in the maintenance of the mountain environments that define the beauty of the Hawaiian Islands. Without an understanding and recognition of this role, these species may easily go extinct without people knowing what was there, or why it was so special."

The study was supported by the William M. and Esther G. Schlinger Foundation and the National Science Foundation.

January 12, 2004

Survival vs Recovery: a Biologist and an Economist Discuss the Endangered Species Act


by Kathryn Stelljes

Steven Beissinger and David Sunding teach conservation biology and environmental economics at UC Berkeley’s College of Natural Resources. Both have extensive experience with endangered species and relevant legislation. As the Endangered Species Act reached its 30th anniversary, the two reflected upon the Act, its impacts, and its future. The Act was signed into law on December 28, 1973, and is administered by the U.S. Fish and Wildlife Service. Today there are 1,263 species listed as federally endangered or threatened, including 517 animals and 746 plants. This includes 288 species that live in California.

“The Endangered Species Act is the only place in the law where we’ve given existence rights, in essence, to nonhuman species,” said conservation biologist Steven Beissinger. He added that other legislation protects specific types of species in specific habitats, such as the Marine Mammal Protection Act or the Forest Management Act, but the Endangered Species Act provides a unique nexus for all public—and to some extent private—lands regarding the taking or potential to impact a species.

Further, he noted that California is an endangered species hotspot.

“Outside of the state of Hawaii, we have the largest numbers of threatened and endangered species. At the same time, one out of every 9 people in the U.S. lives in California,” Beissinger said. “There are cataclysmic forces coming together from two different directions here.”

But evaluating the success of the Act is difficult.

“Few species come off the list or are down-listed from endangered to threatened,” said natural resource economist David Sunding. “By this one measure, the Act has not been as successful as everyone had hoped 30 years ago. On the other hand, we haven’t had as many species go over the precipice, either. There are a lot of species that are on life support, but at least they’re alive. That is an accomplishment of the Act and I think it’s something that people should be thankful for,” he said.

“But that illustrates there is a real difference between keeping a species alive and returning a species to a viable population,” Sunding continued. “Recovery is much harder to implement and it takes a lot more resources.”

Beissinger agrees.

“A key point for agencies in interpreting the Act is to ‘do no harm’. Federal agencies spend far more time trying not to harm species than they do on recovering them,” he said. “People like to evaluate the Act on what’s delisted. We could have the best act in the world but not have the tools and the funding to implement it, so species would never get delisted.”

Beissinger said he’s participated in several recovery teams but questions the value of some of their products. “A recovery plan is a nice document, and the administration loves them because it shows they’ve accomplished something. But do the recovery actions identifiied in the plan actually get done? No, not even a lot of the first priorities,” he said.

Funding is one obvious issue, but biological challenges exist as well.

“Even with a species like the California condor, which has received substantial resources, our ability to recover species is a great biological challenge because the population has been reduced to such a small number of individuals. Also, the factors that caused condors to become endangered have not been reversed,” Beissinger said. “The species we’ve been successful getting off the list have often been in situations where we’ve made a policy intervention that changed the environment across entire species ranges and across state and political boundaries, like eliminating DDT and some other pesticides.”

The difference between survival and recovery is at the heart of three decades of contention between environmental groups, land owners, and industry.

“To be successful at recovering an endangered species, you often have to change the way land is used. Some land has to be set aside entirely, some land may need improvements, economic activities on other land may need to be changed or worked around,” said Sunding. “The basic problem with the Act from a regulatory point of view is that land use planning in this country has historically been one of the things under the purview of local governments.”

“Land owners and communities have things that they want to do with their land, and putting the federal government in there with environmental oversight of proposed land use changes is pretty obviously going to lead to conflict,” Sunding said.

In addition, recovery is expensive.

“Take the case of the Coho salmon,” Sunding said. “To recover the species, we estimated a price tag of about 6 billion dollars, just in California, for one species.” This would involve dozens of counties and cities in the state and would require sweeping land use changes, including changing timber harvesting practices, acquiring water, decommissioning and paving forest roads, and cataloging the upper reaches of relevant watersheds. “In this budget environment,” Sunding said, “it’s very hard for me to imagine the state, even combined with the federal government, allocating 6 billion dollars to recover the Coho salmon. We can keep it from going extinct, but it is a public policy decision whether recovering this fish is worth that amount of money.”

At the same time, nothing in the Act’s legislation provides funding for implementation.

“The Endangered Species Act has been cited as the biggest unfunded mandate passed by Congress in the last 50 years,” said Sunding. “The Clean Water Act, in contrast, is one of the biggest public works projects this country has ever undertaken. There were literally tens of billions of dollars allocated by the federal government to help private industry and governments deal with Clean Water Act requirements. Those funds have never flowed for endangered species. The Endangered Species Act, in other words, has only sticks and no carrots.”

The funding situation is so dire that there has been a moratorium on listing new species for most of the time period since the Reagan administration.

Beissinger noted that the Fish and Wildlife Service is so backlogged that they invited him to a workshop to help them prioritize species that should be considered to begin the listing process. Approximately 117 animals and 139 plant species are candidates for listing but because they have not gone through the formal process, have no legal protection from the Act.

Beissinger says that only a few species have become extinct in the U.S. in spite of listing. “The first place they are disappearing is in Hawaii. The second place they’re going to disappear is here.”

The funding issues are compounded by another section of the Act, which requires designation of critical habitat for each species within one year of listing.

“Historically, the Fish and Wildlife Service had not designated habitat because it was thought that it didn’t provide any additional protection to the species, noted Sunding.” So far, 450 species have designated critical habitat.

There were also concerns by some, noted Beissinger, that small populations might be risked further by specifying their location.

But in many cases, environmental groups have successfully sued the service for not designating habitat, tying up the agency’s resources in litigation or habitat designation rather than in listing.

Both Beissinger and Sunding agree that the Act would benefit from reform and that it faces numerous challenges in today's political and economic environment. The authorization for spending for the Endangered Species Act—such as for the Fish and Wildlife Service to list species--expired in October 1992. Although the tenets of the law are still in force, the Act has not been reauthorized and spending must be allocated annually.

In addition to outright reform or rejection, legislative and administrative changes in other areas can weaken the Act or change how it is implemented. For example, Congress recently exempted military training exercises from requirements of the Act. The Department of Defense controls millions of acres of land that are home to hundreds of rare species.

Even more significant, in December federal regulations eased rules for compliance with the Act for actions that fall under the National Fire Plan. Normally, land management agencies must consult with the Fish and Wildlife Service before authorizing or carrying out actions that could harm listed species or critical habitats. Now, biologists within the individual land management agencies can make the initial determination of whether there is likely to be an adverse habitat.

Two areas that would help reform the legislation, said Sunding, are separating critical habitat designation from listing and providing federal funding.

“Right now, the Act requires critical habitat to be designated at basically the same time as listing, but critical habitat is really part of the recovery phase,” he said. “Moving the critical habitat designation has broad-based support. That would remove a lot of on-the-ground roadblocks and eliminate a lot of lawsuits that have held up listings. And listing is where people feel we get the most benefits,” he added.

“But the most complex challenges are between federal, state, and local governments,” Sunding said. “The federal government needs to develop more trust in state and local governments that they’ll protect species that the nation considers important.”

California has lead the way in innovative methods to address some of these issues, particularly, said Sunding, in a process known as Natural Community Conservation Planning or NCPP launched in 1991. Administered by the California Department of Fish and Game, NCPP seeks to anticipate and prevent the controversies and gridlock caused by species' listings by focusing on the long-term stability of wildlife and plant communities and including key interests in the process. The focus of the initial effort was to protect the coastal sage scrub habitat of Southern California, home to the California gnatcatcher and approximately 100 other potentially threatened or endangered species.

“In addition to the biological innovation of focusing on landscapes rather than species, the Fish and Wildlife Service has reviewed California’s process and through the NCPP delegates a lot of the authority,” said Sunding. “It didn’t come free—California has expended a lot of resources on this process—but it has streamlined the process and helps developers and local governments deal with the Endangered Species Act.”

“Mitigation banking in wetlands is another example of regulatory innovation that reduces compliance costs,” Sunding said. “If you are building a single family development on a designated wetland, you either have to protect it where it is, or you can restore wetlands elsewhere. These types of creative policy solutions have worked very well. It’s when agencies are rigid that things get much more expensive,” he said.

The biological knowledge is also evolving. In a recent paper in Bioscience, Beissinger and coauthors discuss the challenges of defining a viable population of any specific species and of developing methods of evaluating risks to those populations. Some species are key to ecosystem function, while in other cases, evaluating communities or habitats may be sufficient.

Hopeful, rather than optimistic, describes both Sunding’s and Beissinger’s thoughts about the future.

“We’ve got to get real about how much endangered species conservation is going to cost.” he said. For example, Sunding participated in a study in Southern California concluding that endangered species protection in certain areas of Orange County can raise the price of a house by more than $50,000. “That’s where you get into the billions of dollars of impacts,” Sunding said.

“Another way to deal with reform is to understand that developers want certainty. They want to know exactly what it’s going to take in time and money to complete a project. Right now it is a very uncertain process. Anything that adds transparency or streamlines the process will reduce the impact of endangered species regulation on housing,” he said.

But for recovery from a biological standpoint, more sweeping changes would be necessary.

“While the Endangered Species Act has stopped hundreds of species from going extinct, creating an act that recovers species rather than just prevents them from disappearing requires a different kind of legislation,” Beissinger said.

“From a biological perspective, such legislation would deal more directly with the threats to species viability, such as habitat destruction, invasive species and diseases, pollution, and over-harvesting. It would also take a preventative approach to conservation that would aim to conserve ecosystems and communities to avoid listing of individual species. Finally, it would have to recognize the three "r's" of conservation - redundancy, resilience, and resistance. We need to create the conditions that will preserve species and ecosystems, by both making them able to recover from drastic change (resilience) and making them less susceptible to such events (resistance). “

“Redundancy means conserving multiple populations of a species across its range. Redundancy at the ecosystem and community level means conserving
multiple species with the same functions and conserving representations of community/ecosystem types.”

“On one hand,” Beissinger said,” it is hard to be optimistic about the future for many species given the current political impasse and lack of support for conservation in the White House. On the other hand, the Bush doctrine is a religious one and it should recognize that humans have a unique role in stewardship of nature. In this way, both religious groups and environmentalists should agree that all creatures have an intrinsic right to exist and that an Endangered Species Act should be structured to achieve that goal.”

Steven Beissinger holds the A. Starker Leopold Chair in Wildlife Biology and currently chairs the Department of Environmental Science, Policy & Management. He has been involved in field recovery and management of a number of threatened birds including tropical parrots, the Florida Snail Kite, and the Marbled Murrelet. He’s developed models to estimate risks for these and other species, such as the California Condor. He has participated on several federally appointed recovery teams and has recently been elected to the board of the National Audubon Society.

David Sunding previously worked at the Clinton White House as an economic advisor. He is an expert in resource economics regarding water issues and habitat protection. He has helped the Department of the Interior design a framework for designating critical habitat and has served on recovery teams for the Coho salmon and greater sandhill crane.


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Researcher Helps Communities Challenge Polluters
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New Study Finds Evolutionary Diversification in Hawaiian Spiders
Survival vs Recovery: a Biologist and an Economist Discuss the Endangered Species Act


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