elephant

Using innovative research,education, and public outreach to address the impacts on threatened and endangered species around the world.

- Dr. Sam Wasser, Director

poached ivory

African Elephant © Art Wolfe

Tracking Poached ELephant Ivory

Poaching decimated African elephant populations from ~ 1.3 million to 500,000 individuals in the eight years between 1979 and 1987. The illegal ivory trade is currently approaching its highest levels in history.

Our goal is to identify poaching hot spots and potential trade routes by determining the geographic origin of large volumes of contraband ivory seized by wildlife authorities.

poached ivory

African Elephants © Art Wolfe

Effects of poaching

Poaching caused a decline of African elephants from 1.3 million to 600,000 individuals between 1979-1987. Mortality was unusually concentrated among the largest adults with the biggest tusks.

We examined long-term impacts of poaching on elephants of the Mikumi-Selous Ecosystem, Tanzania, one of the largest and most heavily poached elephant populations on the continent prior to the 1989 ivory ban.

poached ivory

Grizzly Bear © Art Wolfe

Grizzly Bears in Jasper

Conservation and management of species at risk demands cost effective methods for rapidly monitoring change in animal abundance, distribution and physiologic health over time.The value of our noninvasive approach was clearly demonstrated in our fist study employing detection dogs as part of a comprehensive monitoring program for large landscapes.

poached ivory

Northern Spotted Owl © Zachary Folk

Northern Spotted Owl Research

The Northern spotted owl (NSO), Strix occidentalis caurina, is the flagship threatened species of the Pacific Northwest. The Northern spotted owl (NSO), Strix occidentalis caurina, is the flagship threatened species of the Pacific Northwest.

poached ivory

Pacific Fisher © Art Wolfe

Monitoring Fisher Populations

The Pacific fisher (Martes pennanti pacifica ) is a Federal Species of Concern, at risk of extinction from logging, fur trappng and habitat loss. The Center for Conservation Biology (CCB) employed their scat detection dogs as an alternative non-invasive method of monitoring the northern and southern fisher populations in California.

poached ivory

Caribou © Art Wolfe

Impacts of oil extraction

We are working in collaboration with the Chipewyan Prairie Dene First Nation, StatoilHydro, Inc. of Norway and the Alberta provincial government to monitor impacts of the oil extraction development on the caribou, moose and wolf living on oil sands lease areas in NE Alberta.

poached ivory

Killer Whales © Sam Wasser

Causes of Decline among Killer Whales

The Center for Conservation Biology is using noninvasive hormone measures of stress and nutrition in feces to examine the relative importance of the two largest of the proposed threats to the Southern resident Killer Whales in the Puget Sound: Disturbance from private and commercial whale watching vessels and decline in their primary prey, Chinook salmon.

Brazillian Mammals

Jaguar © Art Wolfe

Mammals and landscape connectivity conservation

Increasing agricultural expansion and land use is having severe impacts on persistence of wide ranging species. Mortality of such species disproportionately occurs outside of reserves that are intended to protect them.


Research and development, including careful validation experiments, are essential to our mission of providing the conservation community with cost and time effective monitoring tools.

Our combined field and laboratory techniques enable us to non-invasively acquire essential biological information from numerous individuals over large geographic areas. We continually expand our measures to acquire the most comprehensive estimates of wildlife population health.

Most of our studies rely on animal feces (scat) because of its high accessibility in the wilderness and the enormous amount of information contained in these samples. However, sample degradation in a variable environment necessitates meticulous validation of these measures.

Validation confirms the biological significance of the products being measured in scat, how these products change with time on the ground, and how these processes vary across species and environmental conditions. Validation also indicates how best to preserve samples in the field for subsequent analyses as well as how to optimize extractions of the necessary products from the sample. All of these experiments are necessary to assure that results can withstand the many scientific and legal challenges that stem from the political and economic implications of conservation work.

Validation studies are time and cost intensive due to the need for numerous controls, multiple groups, and large sample sizes. Our Center has devoted considerable resources to such studies. We intend to continue these development and validation efforts, as we strive to expand and improve upon available monitoring tools.

Human population growth and consumption are placing ever-increasing demands on the environment. Yet, there is a serious lack of quantitative techniques to monitor these impacts over large landscapes.

The Center’s mission is to develop and apply noninvasive field, lab and analytical methods to address pressing conservation problems worldwide.

We develop and apply comprehensive tools to cost-effectively gather vast amounts of genetic, physiologic and ecological data over very large landscapes, along with creative ways of integrating and analyzing this information. These monitoring programs focus on a wide variety of species and frequently take advantage of our detection dog program. Dogs locate scat of multiple target species, from considerable distances, over large remote areas. We extract a variety of DNA and hormone measures from these samples and use this information to quantify changes in the health, abundance and distribution of endangered species due to human disturbances over large geographic scales. Such data indicate the causes of decline, the magnitude of the problem, and the efficacy of mitigation.

Dogs sniff out scat from endangered animals, trumping more technical tracking methods.

We apply this same approach to DNA-based, wildlife forensics on a continent scale. The burgeoning illegal wildlife trade is destroying biodiversity at rates that are now rivaling those of habitat loss. Our DNA-based forensics tools are helping wildlife authorities combat the burgeoning illegal elephant ivory trade across Africa, although our techniques are clearly applicable to other species. This work is a collaborative effort between our Center, Interpol and several other wildlife authorities. By pinpointing poaching hot spots, authorities are better able to direct law enforcement efforts; we are able to identify strategies used by organized crime syndicates driving this illegal trade; and governments are forced to take responsibility for the magnitude of these problems in their country.

Combating the illegal trade in African elephant ivory with DNA forensics.

The Center relies on the excitement of its innovative applied research to foster public awareness as well as to help build capacity in developing countries.

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© Fred Felleman

  • “Species extinctions are occurring at alarming rates. The Center for Conservation Biology is providing important tools to quantify impacts of two principal causes of these extinctions on a landscape scale - habitat loss and the illegal wildlife trade.”

    — Simon N. Stuart, Ph.D., Chair, IUCN Species Survival Commission

  • “The Center for Conservation Biology’s use of detection dogs to locate scat, followed up with fecal hormone and DNA analyses, provides a powerful approach to monitoring wildlife over large remote areas. This, coupled with the Center’s capability to undertake wildlife forensics has opened new approaches for the conservation of many wildlife species.”

    — John Robinson, Executive Vice President and Chief Conservation Officer, Wildlife Conservation Society.

  • “Good science provides wildlife law enforcement with a technological advantage required to detect and arrest criminals who exploit wild animals illegally. Sam Wasser’s pioneering break-throughs in DNA technological applications are critical to helping wildlife law enforcement understand the structure and dynamics of ivory poaching and trafficking syndicates. Sam’s work provides us with advantages and insight that would not otherwise be available.”

    — Bill Clark, Chairman, Interpol Working Group on Wildlife Crime