Just published in the Journal of Wildlife Management: SLN member article “Assessing Estimators of Snow Leopard Abundance”

The article Assessing Estimators of Snow Leopard Abundance was published in the Journal of Wildlife Management 72(8), pages 1826-1833. 2008. Congratulations to authors Kyle McCarthy, Todd Fuller, Ma Ming, Thomas McCarthy, Lisette Waits, and Kubanych Jumabaev.

The article in its entirety is available on the SLN Bibliography and may be found by visiting the link below:

http://www.snowleopardnetwork.org/bibliography/Assessing Estimators of Snow Leopard Abundance.pdf

Abstract:

The secretive nature of snow leopards (Uncia uncia) makes them difficult to monitor, yet conservation efforts require accurate and precise methods to estimate abundance. We assessed accuracy of Snow Leopard Information Management System (SLIMS) sign surveys by comparing them with 4 methods for estimating snow leopard abundance: predator:prey biomass ratios, capture–recapture density estimation, photo-capture rate, and individual identification through genetic analysis. We recorded snow leopard sign during standardized surveys in the SaryChat Zapovednik, the Jangart hunting reserve, and the Tomur Strictly Protected Area, in the Tien Shan Mountains of Kyrgyzstan and China. During June–December 2005, adjusted sign averaged 46.3 (SaryChat), 94.6 (Jangart), and 150.8 (Tomur) occurrences/km. We used counts of ibex (Capra ibex) and argali (Ovis ammon) to estimate available prey biomass and subsequent potential snow leopard densities of 8.7 (SaryChat), 1.0 (Jangart), and 1.1 (Tomur) snow leopards/100 km2. Photo capture–recapture density estimates were 0.15 (n = 1 identified individual/1 photo), 0.87 (n=4/13), and 0.74 (n=5/6) individuals/100 km2 in SaryChat, Jangart, and Tomur, respectively. Photo-capture rates (photos/100 trap-nights) were 0.09 (SaryChat), 0.93 (Jangart), and 2.37 (Tomur). Genetic analysis of snow leopard fecal samples provided minimum population sizes of 3 (SaryChat), 5 (Jangart), and 9 (Tomur) snow leopards. These results suggest SLIMS sign surveys may be affected by observer bias and environmental variance. However, when such bias and variation are accounted for, sign surveys indicate relative abundances similar to photo rates and genetic individual identification results. Density or abundance estimates based on capture–recapture or ungulate biomass did not agree with other indices of abundance. Confidence in estimated densities, or even detection of significant changes in abundance of snow leopard, will require more effort and better documentation.

Mongolian Wildlife to be Recorded on Film

Written by Kirril Shields
Friday, October 17, 2008
MONGOLIAN wildlife will soon be captured, on camera that is. A Wildlife Picture Index programme is set to begin in January of 2009, aiming to ‘camera trap’ Mongolian mammal and bird species. The program intends to help scientists gain an understanding of population figures and biodiversity across an array of environments, from desert, to steppe, to the rugged and snow-capped mountains of the taiga.

While the WPI was trialled on a small scale in the Democratic Republic of Congo, Sapo National Park, Liberia, and to a lesser degree in other locations around the world, it will be used for the first time on a large scale to record Mongolian wildlife. “This is a great step for Mongolia,” says Eleanor Monks of the Zoological Society of London. “It gives us the opportunity to monitor data deficient species which are rarely seen by the public eye.”
In addition to catching a glimpse of rare and elusive animals such as the Gobi bear, the snow leopard, or the long-eared jerboa, zoologists and scientists are hoping to discover new species of mammals and birds.
The WPI program will also provide insight into a species’ habits -including nocturnal activity- build an understanding of how these animals live, and reveal the impact mining and deforestation have on species’ populations.

According to the team establishing Mongolia’s WPI program, the use of photographic imagery is an effective way of enthusing and educating the public about wildlife by producing vivid colour pictures of rare or, as yet, undiscovered animals.

The camera trapping will be implemented by the Zoological Society of London (through the Steppe Forward Programme), the Wildlife Conservation Society and the Mongolian Academy of Science.

According to Cambridge University, the benefits of camera trapping are that it “offers a non-obtrusive, low cost, verifiable, simple and effective means of meeting objectives across disparate sites.” The objectives, they continue, include “monitoring trends in the diversity, abundance, and distribution of a broad range of terrestrial mammals and birds, including nocturnal, rare and elusive animals.”

The majority of funds for the project’s first year have been supplied by the World Bank. The program will employ roughly six foreign scientists, including two project leaders, four young Mongolian scientists, two Mongolian student interns, and as many as sixty herdsmen from the aimags where the cameras will be placed.
Led by Dr. Jonathan Baillie from ZSL (based at London’s Regent Park Zoo), Monks and Dr. Amanda Fine from the Mongolian office of the Wildlife Conservation Society, the program will monitor six sites around the country: three in central and southern Mongolia, three others far to the west of Ulaanbaatar.

Mongolia, according to the report Silent Steppe: The Illegal Wildlife Trade Crisis in Mongolia, has a “flourishing illegal and wildlife trade, now estimated to be worth more than US$ 100 million annually.” Add to this the depletion of forests and the impact mining companies can have on the environment, and the future of Mongolia’s rare and depleted species may be grim. In 2006, for example, the population of red deer in Mongolia was said to have declined by 92 percent over the last 18 years.

In 2006, Baille enumerated some of the environmental problems Mongolia currently faces. “Mongolia was once a refuge for Central Asia’s mammals, but the Mongolian steppe is now being silently cleared of its wildlife. Even the marmot, a large rodent, is estimated to have declined 75 percent over the past 12 years, due to hunting.”
Others seem to agree. “Mongolia’s growing population and changing lifestyles are intensifying pressures on the country’s fragile ecosystems,” a World Bank report states. “Overgrazing is degrading significant areas and displacing wildlife from its habitat. Pollution from industrial and urban growth is negatively affecting environmental quality. Moreover, hampering progress in the management of and protection of the environment is a conspicuous lack of human and financial resources.”

The Wildlife Picture Index hopes to reverse some of these trends. Implementing the program, according to ZSL, means that “robust monitoring will take place so that the scope and severity of the problem can be defined, communicated and defended.” The society hopes this project will in turn lead to public and government awareness initiatives, launched both by Mongolia and the world at large.

http://ubpost.mongolnews.mn/index.php?option=com_content&task=view&id=2333