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Bischof, R.,Hameed, S.,Ali, H.,Kabir, M.,Younas, M.,Shah, K. A.,Din, J. U.,Nawaz, M. A. |
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Title |
Using time-to-event analysis to complement hierarchical methods when assessing determinants of photographic detectability during camera trapping |
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2013 |
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Methods in Ecology and Evolution |
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Cox proportional hazards model, cumulative incidence, Martes foina, Panthera Uncia, survival anaalysis, Vulpes Vulpes, weighted observations |
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1. Camera trapping, paired with analytical methods for estimating occupancy, abundance and other ecological parameters, can yield information with direct consequences for wildlife management and conservation. Although ecological information is the primary target of most camera trap studies, detectability influences every aspect from design to interpretation.
2. Concepts and methods of time-toevent analysis are directly applicable to camera trapping, yet this statistical field has thus far been ignored as a way to analyze photographic capture data. to illustrate the use to time-to-event statistics and to better understand how photographic evidence accumulates, we explored patterns in tow related measure of detectability: Detection probability and time to detection. We analyzed camera trap data for three sympatric carnivores ( snow Leopard, red fox and stone marten) in the mountains of northern Pakistan and tested predictions about patterns in detectability across species, sites and time.
3. We found species-specific differences in the magnitude of detectability and the factors influencing it, reinforcing the need to consider determinants of detectability in study design and to account for them during analysis. Photographic detectability of snow leopard was noticeably lower than that of red fox, but comparable to detectability of stone marten. Site-specific attributes such as the presence of carnivore sign ( snow Leopard), terrain ( snow leopard and red fox) and application for lures ( red fox) influenced detectability. For the most part, detection probability was constant over time.
4. Species- specific differences in factors determining detectability make camera trap studies targeting multiple species particularly vulnerable to misinterpretation if the hierarchical origin of the data is ignored. Investigators should consider not only the magnitude of detectability, but also the shape of the curve describing the cumulative process of photographic detection, as this has consequences for both determining survey effort and the election of analytical models. Weighted time-to -event analysis can complement occupancy analysis and other hierarchal methods by providing additional tools for exploring camera trap data and testing hypotheses regarding the temporal aspect of photographic evidence accumulation. |
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SLN @ rakhee @ |
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1405 |
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Bohnett, E., Faryabi, S. P., Lewison, R., An, L., Bian, X., Rajabi, A. M., Jahed, N., Rooyesh, H., Mills, E., Ramos, S., Mesnildrey, N., Perez, C. M. S., Taylor, J., Terentyev, V., Ostrowski, S. |
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Title |
Human expertise combined with artificial intelligence improves performance of snow leopard camera trap studies |
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Journal Article |
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Year |
2023 |
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Global Ecology & Conservation |
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41 |
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e02350 |
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1-13 |
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Snow leopard, Artificial intelligence, Camera trap misclassification, individual ID, HotSpotter |
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Camera trapping is the most widely used data collection method for estimating snow leopard (Panthera uncia) abundance; however, the accuracy of this method is limited by human observer errors from misclassifying individuals in camera trap images. We evaluated the extent Whiskerbook (www.whiskerbook.org), an artificial intelligence (AI) software, could reduce this error rate and enhance the accuracy of capture-recapture abundance estimates. Using 439 images of 34 captive snow leopard individuals, classification was performed by five observers with prior experience in individual snow leopard ID (“experts”) and five observers with no such experience (“novices”). The “expert” observers classified 35 out of 34 snow leopard individuals, on average erroneously splitting one individual into two, thus resulting in a higher number than true individuals. The success rate of experts was 90 %, with less than a 3 % error in estimating the population size in capture-recapture modeling. However, the “novice” observers successfully matched 71 % of encounters, recognizing 25 out of 34 individuals, underestimating the population by 25 %. It was found that expert observers significantly outperformed novice observers, making statistically fewer errors (Mann Whitney U test P = 0.01) and finding the true number of individuals (P = 0.01). These differences were contrasted with a previous study by Johansson et al. 2020, using the same subset of 16 individuals from European zoos. With the help of AI and the Whiskerbook platform, “experts” were able to match 87 % of encounters and identify 15 out of 16 individuals, with modeled estimates of 16 ± 1 individuals. In contrast, “novices” were 63 % accurate in matching encounters and identified 12 out of 16 individuals, modeling 12 ± 1 individuals that underestimated the population size by 12 %. When comparing the performance of observers using AI and the Whiskerbook platform to observers performing the tasks manually, we found that observers using Whiskerbook made significantly fewer errors in splitting one individual into two (P = 0.04). However, there were also a significantly higher number of combination errors, where two individuals were combined into one (P = 0.01). Specifically, combination errors were found to be made by “novices” (P = 0.04). Although AI benefited both expert and novice observers, expert observers outperformed novices. Our results suggest that AI effectively reduced the misclassification of individual snow leopards in camera trap studies, improving abundance estimates. However, even with AI support, expert observers were needed to obtain the most accurate estimates. |
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SLN @ rakhee @ |
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1715 |
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Author |
Farrington, J. |
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A Report on Protected Areas, Biodiversity, and Conservation in the Kyrgyzstan Tian Shan with Brief Notes on the Kyrgyzstan Pamir-Alai and the Tian Shan Mountains of Kazakhstan, Uzbekistan, and China |
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2005 |
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1-276 |
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Report; protected; protected areas; protected area; protected-areas; protected-area; areas; area; biodiversity; conservation; Kyrgyzstan; Tian; Tian-Shan; shan; Pamir-Alai; mountains; mountain; Kazakhstan; Uzbekistan; China; environmental; study; former; soviet; central; Central Asia; asia; land; Forest; snow; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; leopard; Chinese; range; republic; wildlife; International; research; land-use; land use; recent; inner; project; ecological; Middle; Middle Asia; Organization; awareness; region; preserve; species; ecosystems; ecosystem; potential; community; Biodiversity conservation; Xinjiang; information; Kyrgyz; Kyrgyz-Republic; protection; flora; fauna; mammals; birds; reptiles; amphibians; endemic; plants; plant; history; Southern; survey; protect; river; heart |
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Kyrgyzstan is a land of towering mountains, glaciers, rushing streams, wildflowercovered meadows, forests, snow leopards, soaring eagles, and yurt-dwelling nomads. The entire nation lies astride the Tian Shan1, Chinese for “Heavenly Mountains”, one of the world's highest mountain ranges, which is 7439 m (24,400 ft) in elevation at its highest point. The nation is the second smallest of the former Soviet Central Asian republics. In
spite of Kyrgyzstan's diverse wildlife and stunning natural beauty, the nation remains little known, and, as yet, still on the frontier of international conservation efforts. The following report is the product of 12 months of research into the state of conservation and land-use in Kyrgyzstan. This effort was funded by the Fulbright Commission of the U.S. State Department, and represents the most recent findings of the author's personal environmental journey through Inner Asia, which began in 1999. When I first started my preliminary research for this project, I was extremely surprised to learn that, even though the Tian Shan Range has tremendous ecological significance for conservation efforts in middle Asia, there wasn't a single major international conservation organization with an office in the former Soviet Central Asian republics. Even more surprising was how little awareness there is of conservation issues in the Tian Shan region amongst conservation workers in neighboring areas who are attempting to preserve similar species assemblages and ecosystems to those found in the Tian Shan. Given this lack of awareness, and the great potential for the international community to make a positive contribution towards improving the current state of biodiversity conservation in Kyrgyzstan and Central Asia, I have summarized my findings on protected areas and conservation in Kyrgyzstan and the Tian Shan of Kazakhstan, Uzbekistan, and Xinjiang in the chapters below. The report begins with some brief background information on geography and society in the Kyrgyz Republic, followed by an overview of biodiversity and the state of conservation in the nation, which at the present time closely parallels the state of conservation in the other former Soviet Central Asian republics. Part IV of the report provides a catalog of all major protected areas in Kyrgyzstan and the other Tian Shan nations, followed by a list of sites in Kyrgyzstan that are as yet unprotected but merit protection. In the appendices the reader will find fairly comprehensive species lists of flora and fauna found in the Kyrgyz Republic, including lists of mammals, birds, fish, reptiles, amphibians, trees and shrubs, wildflowers, and endemic plants. In addition, a
draft paper on the history and current practice of pastoral nomadism in Kyrgyzstan has been included in Appendix A. While the research emphasis for this study was on eastern Kyrgyzstan, over the course of the study the author did have the opportunity to make brief journeys to southern Kyrgyzstan, Uzbekistan, Kazakhstan, and Xinjiang. While falling short of being a definitive survey of protected areas of the Tian Shan, the informational review which
follows is the first attempt at bringing the details of conservation efforts throughout the entire Tian Shan Range together in one place. It is hoped that this summary of biodiversity and conservation in the Tian Shan will generate interest in the region amongst conservationists, and help increase efforts to protect this surprisingly unknown range that forms an island of meadows, rivers, lakes, and forests in the arid heart of Asia. |
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Ph.D. thesis |
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Kyrgyzstan |
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Fulbright Fellow – Environmental Studies, Kyrgyzstan, Former Soviet Central Asia 2003-2004 |
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SLN @ rana @ 1060 |
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269 |
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Graham, L.H.; Goodrowe, K.L.; Raeside, J.I.; Liptrap, R.M. |
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Non-invasive monitoring of ovarian function in several felid species by measurement of fecal estradiol-17-beta and progestins |
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1995 |
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Zoo Biology |
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14 |
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3 |
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223-237 |
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Artificial-Breeding-Program; captive-management; Estradiol-17beta; Pregnancy; Progesterone; Progestin; sexual-behavior; genetics; zoo; medicine; veterinary; snow-leopard; feces; fecal-analysis; snow leopard; artificial; breeding; program; captive; management; Estradiol; 17beta; sexual; behavior; browse; snow; leopard; fecal; analysis; 1390 |
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An extraction and assay procedure to measure fecal estradiol-17-beta and progestin concentrations in several cat species was developed and validated for use for noninvasive monitoring of ovarian function. Fecal samples were collected over a range of 3-20 months from female tigers (three), lions (three), snow leopards (three), cheetahs (two), caracals (two), and domestic cats (five). Samples were extracted with 90% methanol, lipids removed with petroleum ether, and the estradiol and progestins in the methanol measured by radioimmunoassay (RIA). High Performance Liquid Chromatography (HPLC) fractionation and subsequent RIA of the fractions indicated that the estradiol-17-beta antiserum cross-reacted primarily with estradiol-17-beta in the feces of lions and tigers and was assumed to be specific for estradiol-17-beta in the feces of other species as well. However, there were several immunoreactive compounds, presumably progesterone metabolites, excreted in the feces which varied both quantitatively and qualitatively among species. The behavior of tigers, lions, cheetahs, and caracals was visually monitored during the collection period and frequency of sexual behaviors was positively correlated with increases in fecal estradiol in all species observed. The mean fecal estradiol-17-beta peaks were as follows: tigers, 128.0 +- 13.1; lions, 186.0 +- 14.8; snow leopards, 136.7 +- 15.9; cheetahs, 140.9 +- 9.0; caracals, 24.5 +- 4.0; and domestic cats 158.9 +- 19.3 ng/gm. Fecal progestin concentrations rose significantly (P lt 0,001) only after breeding or during pregnancy and were as follows: tigers, 5.6 +- 0.6; lions, 1.9 +- 0.1; cheetahs, 8.4 +- 1.1; and caracals, 2.4 +- 0.4 mu-g/gm. Fecal progestins were elevated for one-half to two-thirds of the gestation length during presumed pseudopregnancy but remained elevated throughout successful pregnancies. These results suggest that ovarian function can be monitored noninvasively in the family Felidae by the measurement of fecal estradiol-17-beta and progestin concentrations. |
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Document Type: English |
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SLN @ rana @ 279 |
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345 |
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Heinen, J.T.; Mehta, J. |
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Emerging issues in legal and procedural aspects of buffer zone management with case studies from Nepal |
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2000 |
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Journal of Environment and Development |
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conservation; legal; management; Nepal; park; participatory; protected area; regulations |
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Buffer zones have been used as part of larger integrated conservation development programs to provide the benefits of ecological buffering of protected areas and socioeconomic buffering of neighboring communities. The authors explore the legal and managerial development of buffer zones internationally and with the passage of a conservation amendment in Nepal. A review of Nepal's buffer zone policies and several ongoing projects shows that there are several potential inherent problems. As written, regulations tend to expand the authority of the state by imposing restrictions in populated areas formerly not under control of park officials. Some participatory rights are provided to citizens, but management authority largely remains top down from the standpoint of local users. The authors question whether the managerial and research capacities exist to monitor buffer zones for their effectiveness both for conservation and development purposes and make several recommendations to improve implementation. |
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SLN @ rana @ 939 |
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378 |
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Author |
Hunter, D. |
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Title |
Mongolian-American Snow Leopard Project |
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Miscellaneous |
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1996 |
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Snow Line |
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xiv |
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behavior; collars; desert; gobi; home-range; Islt; Macne; McCarthy; Mongolia; Munkhtsog; radio-collars; Satellite; Slims; telemetry; Wcs |
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International Snow Leopard Trust |
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Seattle |
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SLN @ rana @ 442 |
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391 |
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International Snow Leopard Trust |
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Snow Leopards in Ancient Artwork In Central Asia |
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1994 |
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Snowline |
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xii |
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Kazakhstan; Kyryzstan; art; browse; paintings; 4630 |
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Islt |
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Seattle |
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Full Text at URLJournal Title: Snowline |
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923 |
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International Snow Leopard Trust |
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Snow Leopard News Spring 2000 |
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2000 |
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Snow Leopard News |
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Rutherford; Freeman; Morse; Jackson; Hillard; Natural-Partnerships-Program; Pakistan; Islt; Slims; training; Chitrol-Gol; parks; preserves; reserves; protected-areas; surveys; Hemis; Conflict-Resolution-Workshop; conflict; herders; leh; Jammu; Kashmir; Ladakh; corrals; predator; prey; livestock; depradation; human-wildlife-conflict; Uzbekistan; Gissar; Peace-Corps; Mongolia; Macne; fiction; populations; browse; 4390 |
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Islt |
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Seattle, Wa |
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Full Text at URLTable of Contents1.Transitions at the Trust2.Message From ISLT Founder Helen Freeman and President Charles Morse3.Jakson and Hillard to Leave ISLT for New Pursuits4. News and Notes5. ISLT's Natural Partnerships Program6.Thoughts from a Snow Leopard7. Snow Leopards, Local People,and Livestock losses: Solutions through Paticipation8.U.S. Peace Corps and ISLT Team Up in Mongolia |
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930 |
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International Snow Leopard Trust |
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Snow Leopard News Summer 2000 |
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2000 |
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Snow Leopard News |
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Woodland-Park-Zoo; seattle; cubs; McCarthy; Allen; volunteer; Peter-Mathiessen; Chitrol-Gol; Pakistan; livestock; predator; prey; killing; Haleem; field-study; research; corraling; villagers; herders; browse; 4380 |
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Islt |
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Seattle, WA |
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Full Text at URLTable of Contents1.Woodland Park Zoo Society Awards $65,000 Challenge Grant to ISLT2.ISLT Completes Search for Conservation Director and Program Officer3.Volunteer Needed4.News and Notes5.Donate to ISLT on the Internet without Spending a Cent6.Seven Snow Leopards Spotted in Chitral Gol National Park in Pakistan |
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SLN @ rana @ 426 |
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929 |
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International Snow Leopard Trust |
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Snow Leopard News Autumn/ Winter 2000 |
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2000 |
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Snow Leopard News |
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McCarthy; Mongolia; field-work; surveys; collars; habitat; research; home-ranges; tourism; parks; preserves; reserves; Islt; Nepal; women; conservation; awareness; herders; crafts; livestock; pelts; furs; bones; hunting; incentives; browse; 4370 |
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Islt |
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Seattle, Wa |
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Full Text at URLTable of Contents:1. Dr. Tom McCarhty Joins ISLT Team2.Community Based Tourism3.Women and Snow Leopard Conservation4.Taking Stock in Snow Leopard Conservation5.Saving the Snow Leopard with Knitting Needles |
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