Conservation Awards



  • Jacob A. Esselstyn
  • Jacob R. Goheen
  • José González-Maya
  • Kristofer M. Helgen
  • Chris N. Jacques
  • Thomas Jung
  • Michael E. Tewes
  • Samantha Wisely

History and Mission

In 2002, the American Society of Mammalogists established 2 new conservation awards to recognize outstanding contributions to the conservation of mammals and their habitats.

Aldo Leopold Award

The first award, the Aldo Leopold Award, is awarded to a well-established individual who has made a lasting contribution to the conservation of mammals and their habitats. In 2003, the inaugural Aldo Leopold Award recipient was E. O. Wilson of Harvard University for his valuable contributions to mammalian conservation through his development and promotion of the concepts of biodiversity.

Murie Family Conservation Award

The second award, the Murie Family Conservation Award, is awarded to a current undergraduate or graduate student, post-doctoral fellow, or early career researcher (within 5 years of their terminal degree) who has made a significant contribution to the conservation of mammals and their habitats. Originally called the William T. Hornaday Award, nominations were first taken in 2004. 

2021 Aldo Leopold Award Recipient

The recipient of the 2021 Aldo Leopold award is of Texas A&M. Dr. Lacher has been a prolific researcher for almost 40 years, conducting research in over 100 countries, including 60 tropical countries during their tenure as Senior Vice-President and Executive Director of the Center for Applied Biodiversity Science (the research division of Conservation International). He is a member of the Climate Change Specialist Group of the International Union for the Conservation of Nature and Natural Resources (IUCN) and co-chair of the IUCN Species Survival Commission/ Small Mammal Specialist Group. He has (co) authored or edited 13 books and monographs and over 215 research articles, including works such as volumes 6 & 7 of Handbook of Mammals of the World, supervised dozens of graduate students, and taught hundreds of undergraduate students. Dr. Lacher was nominated for his “(1) strong scholarly contributions to mammalian conservation, ecology, and ecotoxicology; (2) his commitment to and success in educating and training the next generation of conservation biologists; and (3) his enduring engagement with and leadership of various international conservation organizations that use science to inform policy and management.”


2020 Murie Family Conservation Award

The first recipient of the Murie Family Conservation Award is Dr. Jennifer A. Guyton, recent graduate from Princeton University and current National Geographic–Fulbright Digital Storytelling Fellow. Since 2013, Dr. Guyton has worked in Gorongosa National Park in Mozambique, Africa. Her recent paper in Nature Ecology & Evolution on the control of the alien invasive Mimosa pigra in Gorongosa by large mammalian herbivores has given scientists important insights into the management of the habitats of those species. This is very relevant because Gorongosa National Park is fast recovering from a catastrophic decline in its large mammal population during the long period of the Mozambican civil war and its aftermath. In addition to her PhD research, Dr. Guyton participated in the parks small mammal surveys and eventually became the small mammal specialist, conducting surveys for mice, rats, shrews, and bats. She has since continued the biodiversity surveys each year for bats, having censused 37 species of bat in the park. The survey eventually lead to the discovery of three entirely new species of bat, some of which may only occur in the Park. Her research on bats in Gorongosa is soon to become its own field guide. Along with the extensive field based conservation biology work, she has made it a point to share her experience and her life through a camera lens. Through her photography of wildlife and African mammals, Dr. Guyton has become a National Geographic Explorer, Fulbright – National Geographic Digital Storytelling Fellow, and a Fellow with the International League of Conservation Photographers. She has won numerous awards with her wildlife conservation based photography, along the way writing articles for National Geographic and the BBC.

Streaming Presentations 

ASM Members can log into the Business Office site and stream presentations from past winners!

Aldo Leopold Award

We are proud to honor the memory of former ASM member Aldo Leopold with the senior award. Not only did Aldo Leopold have a significant and lasting influence in wildlife conservation and management, but he also had a great interest in mammals. He was an active member of ASM and a member of the Conservation of Land Mammals Committee (4 years) in the 1930s and during this time worked to defend wolves in Wisconsin and the Great Lakes states and grizzly bears in New Mexico. Leopold is well known for his famous land ethic philosophy, and is considered to be the “father” of wildlife ecology and management. His son, A. Starker Leopold, served as Chair of the Conservation of Land Mammals Committee in the 1950s. Students of both generations of Leopolds have had a profound impact on the field of mammalogy. 

The Murie Family Conservation Award (2020+)

Among the founding figures in wildlife management and conservation biology are the half-brothers Olaus and Adolph Murie and their wives (also half-sisters!) Margaret (Mardy) and Louise. Olaus Murie conducted and published groundbreaking research on a variety of large mammals, much of it focused on Alaska, Wyoming, and Canada. He was an early biologist for the US Bureau of Biological Survey and served as president of both The Wilderness Society and Wildlife Society (1944–45). Margaret Murie was a naturalist and a conservationist, received the Presidential Medal of Freedom in 1998, and was called the “Grandmother of the Conservation Movement” by both the Sierra Club and the Wilderness Society. Olaus and Mardy secured passage of the Alaska National Interest Lands Conservation Act, expansion of Olympic National Park, and creation of the Jackson Hole National Monument, among many other achievements. Adolph Murie was an ecologist and a strong proponent of science-based and ecologically informed wildlife management. He worked for the Wildlife Division of the National Park Service, conducting now-classic studies on a number of predator and prey species. The first scientist to study wolves in their natural habitat, his book The Wolves of Mt. McKinley is widely considered a classic. Louise Murie was a botanist, made 25 expeditions to Mt. McKinley (now Denali) National Park, and served on the board of directors for the Jackson Hole Conservation Alliance.  She made extensive collections of plants from Denali and other places. Settling in Jackson Hole in 1945, Louise continued with work in conservation and community service, including work with the Teton Science Schools, the Jackson Hole Conservation Alliance, and The Murie Center. The legacy of the Murie Family continues through their children, the many students and colleagues who have followed in their path, and the wonderful wilderness areas that are now protected because of their efforts.

William T. Hornaday Award (2003-2019)

William T. Hornaday was a pioneer in wildlife conservation and the “architect” of two of the most renowned zoological parks in the United States, the National Zoo in Washington, D.C. and the New York Zoological Park in Bronx, New York. Hornaday was responsible for a number of early wildlife protection laws in the US, was instrumental in saving the northern fur seal from extinction, and authored 15 books and numerous articles about wildlife and the need for conservation. The fate of the American bison seemed to stir Hornaday most deeply, perhaps because he had himself witnessed the systematic slaughter of this species in the west. His 1889 book entitled “The extermination of the American bison” established him as a prominent defender of these animals. In the early 1900s, he founded the National Bison Society and promoted the establishment of the herds at Wichita Mountains in Oklahoma and the National Bison Range in Montana. However, review of Hornaday’s writings and political assertions reveals that they are in conflict with the ASM’s committment to promoting diversity, embracing inclusivity, and actively engaging with anyone with an interest in mammals. Thus, in July 2020 the ASM Board of Directors voted to rename this award as the Murie Family Conservation Award, thereby recognizing one of the founding families in wildlife and wilderness conservation.

The Aldo Leopold Award is awarded to a well-established individual who has made a lasting contribution to the conservation of mammals and their habitats.
The Murie Family Conservation Award is awarded to a current undergraduate or graduate student, post-doctoral fellow, or early career researcher (within 5 years of their terminal degree) who has made a significant contribution to the conservation of mammals and their habitats.

The recipient of each award will have contributed substantially to (1) the conservation of 1 or more mammalian species, subspecies, or populations, (2) the conservation of mammalian assemblages and communities, and/or (3) advancing the field of conservation biology through focal research on mammals. We interpret “contribution” broadly to include (1) scientific research or political activism that has resulted in the preservation of an imperiled species; (2) development of protective management recommendations; (3) acquisition of new knowledge regarding the conservation status or causes for decline of mammalian species or populations; (4) the protection of significant mammalian habitat; or (5) promotion of the conservation of mammals through public education.

All persons are invited to submit nominations for these awards. For each award, the nomination packet should include:
  1. A brief (2 pages maximum) narrative that introduces and describes the conservation activities of the nominee;
  2. A list of relevant journal articles, government and NGO reports, newspaper clippings, and other materials that chronicle and corroborate the conservation-related activities of the nominee;
  3. Contact information for the nominator and nominee;
  4. Inclusion of the statement...
    As a part of preparing this nomination, I have read and understood the American Society of Mammalogists' Code of Professional Conduct (here). To the best of my knowledge, the individual I am nominating exemplifies the high caliber of professional conduct that the ASM expects and promotes as required to be eligible for this award, as well as to retain this recognition should they be the award recipient.
  5. Supporting material as follows:

Aldo Leopold Award -- A complete nomination packet (nominating letter, curriculum vita, 3 pieces of corroborative literature that most succinctly and directly describe the nominee’s contributions to mammalian conservation, and up to 4 additional letters of support) should be submitted (as a single PDF file) to John L. Koprowski ( by 1 March. Nominations will be retained for two years.

Murie Family Conservation Award -- Letters of recommendation from 2 individuals familiar with the nominee’s conservation activities. One of these letters must be from the student’s research advisor that confirms the nominee’s status as a student or early career researcher with 5 years of receiving their terminal degree. Completed nomination packets (as a single PDF file) should be sent to John L. Koprowski ( Deadline for submission of has been extend to June 15, 2023. The recipient will be announced at the annual meeting of the Society.  Nominations are not retained from previous years.  Please send any questions about the award or the nomination to John L. Koprowski (


for outstanding contributions to the conservation of mammals and mammalian biodiversity

  • 2003—Edward O. Wilson, Harvard University, Cambridge, MA
  • 2004—Russell A. Mittermeier, Conservation International, Washington, DC
  • 2005—George B. Schaller, Wildlife Conservation Society, Bronx, NY
  • 2007—Rodrigo A. Medellín, Instituto de Ecología, UNAM, Ciudad de México, México
  • 2008—Virgilio G. Roig, Jardín Zoológico de Mendoza, Mendoza, Argentina
  • 2009—Helene Marsh, James Cook University, Townsville, Queensland, Australia
  • 2010—Herbert Prins, Chair of Resource Ecology, Wageningen University, The Netherlands
  • 2011—Rubén Bárquez, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET of Argentina), Buenos Aires, Argentina
  • 2012—Dean Biggins, US Geological Service, Fort Collins, CO
  • 2013—Joel Berger, University of Montana, Missoula, MT
  • 2014—Lawrence R. HeaneyField Museum of Natural History, Chicago, IL
  • 2015—Andrew T. SmithArizona State University, Tempe, AZ
  • 2016—Marco Festa-Bianchet, Université de Sherbrooke, Québec, Canada
  • 2017—Gerardo Ceballos, Instituto de Ecología, UNAM, Ciudad de México, México
  • 2018—Steve GoodmanField Museum of Natural History, Chicago, IL
  • 2019—Bernal Rodríguez-Herrera, Universidad de Costa Rica, San José, Costa Rica
  • 2020—Gladys Kalema-ZikusokaConservation Through Public Health
  • 2021Thomas E. Lachler Jr., Texas A&M


presented to a student/young professional who has made a significant contribution as a student to the conservation of mammals and their habitats.


presented to a student/young professional who has made a significant contribution as a student to the conservation of mammals and their habitats.

  • 2004—Brent Sewall, University of California, Davis, CA
  • 2005—Isabel Beasley, James Cook University, Queensland, Australia
  • 2008—Angelia S. M. Vanderlaan, Oceanography Department, Dalhousie University, Halifax, Nova Scotia, Canada
  • 2009—Gerrit Jan Schipper III, Ph.D. Student, Director of IUCN-SSC/CI-CABS Global Mammal Assessment, Arlington, VA; University of Idaho/CATIE, Moscow, ID
  • 2011—Enzo Aliaga-Rosel University of Hawai`i at Manoa, Manoa, HI
  • 2013—Abdullahi Hussein Ali Ph.D. student, University of Wyoming, Laramie, WY
  • 2014—Erin Baerwald Ph.D. student, University of Calgary, Calgary, Alberta
  • 2015—José F. González-Maya Ph.D. student, Instituto de Ecología, UNAM, Ciudad de México, México
  • 2016—Héctor Ramirez-Chaves Ph.D. studentUniversity of Queensland, Australia
  • 2017—Roberto Salom-Pérez Ph.D. student, University of Idaho & Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Costa Rica
  • 2018—Kristoffer Everatt Ph.D. studentNelson Mandela University in Port Elizabeth South Africa
  • 2019—Clayton Lamb Ph.D. studentUniversity of Alberta, Edmonton, Alberta