Share This Profile
Share this profile on Facebook.
Link to this profile on LinkedIn.
Tweet this profile on Twitter.
Email a link to this profile.
See other services through which you can share this profile.
This profile was last updated on 8/2/14  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. James A. Estes

Wrong Dr. James A. Estes?

Board Member

Phone: (802) ***-****  HQ Phone
Wildlands Network
P.O. Box 5284
Titusville, Florida 32783
United States

Company Description: We focus on things that make life possible. We want future generations to inherit a continent rich in wildlife, with plenty of room for all species to roam. We...   more

Employment History

  • Research Scientist
    U.S. Geological Survey
  • Research Biologist
    U.S. Geological Survey
  • Marine Biologist
    U.S. Geological Survey
  • Expert In the Population Dynamics of Sea Mammals
    University of California , Santa Cruz
  • Professor of Ecology and Evolutionary Biology
    University of California , Santa Cruz
  • Research Associate and Adjunct Professor With the Center for Marine Studies
    University of California , Santa Cruz
  • Professor of Ecology and Evolutionary Biology
    UC Santa Cruz
  • Adjunct Professor of Ecology and Evolutionary Biology
    UC Santa Cruz
  • Marine Ecologist
    UC Santa Cruz
  • Science Director
    Friends of the Sea Otter
  • Biology Professor
    University of California
  • Ecologist
    University of California
  • Marine Ecologist
    University of California
  • USGS Research Ecologist
    Western Ecological Research Center
  • Research Biologist
    Western Ecological Research Center
  • Geological Survey Research Ecologist
    Western Ecological Research Center
  • Marine Program Associate
  • Professor of Ecology and Evolution
    University of California at Santa Cruz
  • Faculty Member
    University of California at Santa Cruz
  • Professor of Ecology and Evolutionary Biology
    University of California at Santa Cruz

Board Memberships and Affiliations


  • B.A
    University of Minnesota
  • Ph.D
    University of Arizona
  • M.S.
    Washington State University
197 Total References
Web References
Board of Directors | Wildlands Network, 2 Aug 2014 [cached]
Highlights of her program include Continental Conservation, edited by Michael E. Soulé and John Terborgh; The Wolf's Tooth, by Cristina Eisenberg; An Introduction to Restoration Ecology, by Evelyn Howell et al.; TrophicCascades, edited by James Estes and John Terborgh; The Carnivore Way, by Cristina Eisenberg; Collected Papers of Michael E. Soulé on Conservation Biology.
Jim Estes Adjunct professor of ecology and evolutionary biology University of Ca, Santa Cruz Jim, a research biologist with the USGS Western Ecological Research Center, is based at UCSC's Center for Ocean Health at Long Marine Laboratory. He is well-known nationally and internationally for his research on sea otters and the key role they play in kelp-forest ecosystems. The USGS award citation outlined the many ways in which he has worked with the media to publicize his findings about sea otter populations. Through his research and communications efforts, Jim has made widely known the fascinating story of the precipitous decline of sea otters in Alaska, the discovery that killer whales were preying on otters, and the subsequent chain reaction that resulted in the loss of entire kelp-forest ecosystems. He first published his findings in the journal Science in 1998, then went on to capture the public's attention around the world by telling his story through newspaper, magazine, radio, and television media, including the New York Times and Washington Post, the Associated Press, Reuters, ENN News, National Geographic magazine, NBC Nightly News, MSNBC, National Public Radio, CNN, ABC, and the Canadian Broadcasting Company. Among his many awards, Jim received the Shoemaker Award for Distinguished Achievement in Communication from the U.S. Geological Survey (USGS).
Institute for Ocean Conservation Science, 27 Aug 2014 [cached]
PI: James Estes, University of California, Santa Cruz; John Terborgh, Duke University*
Dr. James Estes, Research Scientist with the U.S. Geological Survey and Adjunct Professor at the University of California, Santa Cruz, and Dr. John Terborgh, Director of the Duke University Center for Tropical Conservation, convened a group of 21 world-class scientists who have studied the ecological roles of large predators.
James Estes, PhD Dr. James Estes is an international expert on sea otters and a specialist in the critical role of apex (top level) predators in the marine environment. He has been a research biologist at the Western Ecological Research Center of the U.S. Geological Survey for more than 20 years. Estes also holds academic posts as research associate and adjunct professor with the Center for Marine Studies at the University of California, Santa Cruz.
His interest in predation as an ecosystem-level process began in the early 1970s, after he began working with sea otters. Using the otters' fragmented distribution across the Aleutian archipelago (which resulted from a history of near-extinction and recovery), he and a colleague discovered the species' keystone role in kelp forests by comparing islands where it was abundant or rare. This work provided a spectacular example of how apex predators influence ecosystem functions. Estes continued to explore the dimensions of sea otter-kelp forest interactions over the next 30 years, including the unanticipated collapse of sea otters and kelp forests in western Alaska.
He has now published nearly 70 scientific articles and reports on wildlife ecology, predation and conservation, and was lead editor of the 2007 book, "Whales, Whaling, and Ocean Ecosystems. Estes is a recipient of the prestigious Pew Fellowship in Marine Conservation (1999).
Dr. Estes' Pew Fellows in Marine Conservation webpage
Gene C. Gerard OrBlog » 2006 » December, 1 Dec 2006 [cached]
Jim Estes, a well-known USGS marine biologist told the Associated Press, "I feel as though we've got someone looking over our shoulder at every damn thing we do.
Our Team || Friends of the Sea Otter || Sea OtterFriends of the Sea Otter, 29 June 2013 [cached]
In April 2008, Jim, along with Dr. Jim Estes, world-renowned expert on sea otters, Andy Johnson, Manager, Monterey Bay Aquarium's Sea Otter Research and Conservation Program, were invited to be expert witnesses to testify about sea otters before the Congressional Subcommittee on Fisheries, Wildlife and the Oceans.
Prior to re-joining Friends of the Sea Otter, Jim was the marine program associate for Defenders of Wildlife for just under 11 years and Science Director for Friends of the Sea Otter for 2.5 years.
James A. Estes
After growing up in southern California, Jim received a bachelor's degree from the University of Minnesota in 1967 and doctorate from the University of Arizona in 1974. He subsequently worked as a research scientist for the Fish and Wildlife Service and the US Geological Survey. After retiring from federal service in 2007, Jim took a part time faculty position with the Department of Ecology and Evolutionary Biology at the University of California at Santa Cruz, where he currently resides. Jim is an internationally known expert on marine mammals and a specialist in the critical role of apex (top level) predators in the marine environment. Much of this work has been with sea otters and coastal ecosystems in the North Pacific Ocean. Jim has conducted field research in Alaska, California, Mexico, New Zealand, and Russia. He has published more than 150 scientific articles, several books and monographs, and has served on the editorial boards for a variety of professional journals. He also served on the California and southwest Alaska sea otter recovery teams. Jim's most recent book, published by Island Press in 2010, is a co-edited volume with John Terborgh entitled Trophic Cascades: Predators, Prey and the Changing Dynamics of Nature.
Jim is a Pew Fellow in marine conservation and a Fellow of the California Academy of Sciences. He received the Western Society of Naturalist's Lifetime Achievement Award in 2011 and the American Society of Mammalogists' C. Hart Merriam Award in 2012.
The Orca Zone - News - A Site Dedicated to Wild and Captive Orca Whales, 10 May 2009 [cached]
Professor James Estes, an expert in the population dynamics of sea mammals at the University of California, Santa Cruz, believes that, faced with a shortage of food, some groups of Pacific orcas have altered their diets. Each killer whale is capable of eating several otters or seals a day.
Estes, whose research will be published in the Philosophical Transactions journal of the Royal Society, said: "Killer whales are the world's largest carnivores.
Estes is very cautious about such ideas, partly because he believes the science needs to be more certain and because pred-ator control programmes are seldom successful. A cull would also cause an outcry among conservationists.
"Culling killer whales might solve the problem but it would have a huge political dimension. A lot of people involved in conservation are nervous about this issue," he said.
Estes, however, remains deeply concerned that the current population levels of sea otters, Steller's sea lions and some seal species is so low that they are at risk of extinction. Although exact numbers are unknown, the population of these species has dwindled to about 10,000-20,000, a fraction of their natural levels.
Such animals were intensively hunted for their fur, oil, meat and blubber from the 18th century onwards but their numbers began to recover after they were all given protection in the early 20th century.
Last century, however, industrial whaling wiped out most of the great whale populations in the Pacific, Atlantic and Southern Ocean. "It seems likely that killer whales expanded their diets to include a higher percentage of sea otters and other sea mammals after the reduction in great whale numbers caused by postworld war two industrial whaling," said Estes.
Other People with the name "Estes":
Other ZoomInfo Searches
Accelerate your business with the industry's most comprehensive profiles on business people and companies.
Find business contacts by city, industry and title. Our B2B directory has just-verified and in-depth profiles, plus the market's top tools for searching, targeting and tracking.
Atlanta | Boston | Chicago | Houston | Los Angeles | New York
Browse ZoomInfo's business people directory. Our professional profiles include verified contact information, biography, work history, affiliations and more.
Browse ZoomInfo's company directory. Our company profiles include corporate background information, detailed descriptions, and links to comprehensive employee profiles with verified contact information.