| Home | [101–110] << 111 112 113 114 115 116 117 118 119 120 >> [121–130] |
|
| Records | |||||
|---|---|---|---|---|---|
| Author | Johansson, O., Samelius, G., Wikberg, E, Chapron, G., Mishra, C., Low, M | ||||
| Title | Identification errors in camera- trap studies result in systematic population overestimation | Type | Journal Article | ||
| Year | 2020 | Publication | Scientific Reports | Abbreviated Journal | |
| Volume | 10 | Issue | 6393 | Pages | 1-10 |
| Keywords | |||||
Abstract  |
Reliable assessments of animal abundance are key for successful conservation of endangered species. For elusive animals with individually-unique markings, camera-trap surveys are a benchmark standard for estimating local and global population abundance. Central to the reliability of resulting abundance estimates is the assumption that individuals are accurately identified from photographic captures. To quantify the risk of individual misidentification and its impact on population abundance estimates we performed an experiment under controlled conditions in which 16 captive snow leopards (Panthera uncia) were camera-trapped on 40 occasions and eight observers independently identified individuals and recaptures. Observers misclassified 12.5% of all capture occasions, resulting in systematically inflated population abundance estimates on average by one third (mean ± SD = 35 ± 21%). Our results show that identifying individually-unique individuals from camera-trap photos may not be as reliable as previously believed, implying that elusive and endangered species could be less abundant than current estimates indicate. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | SLN @ rakhee @ | Serial | 1496 | ||
| Permanent link to this record | |||||
| Author | Atzeni, L., Cushman, S. A., Bai, D., Wang, J., Chen, P., Shi, K., Riordan, P. | ||||
| Title | Meta-replication, sampling bias, and multi-scale model selection: A case study on snow leopard (Panthera uncia) in western China. | Type | Journal Article | ||
| Year | 2020 | Publication | Ecology and Evolution | Abbreviated Journal | |
| Volume | Issue | Pages | 1-27 | ||
| Keywords | MaxEnt, meta-replication, multi-scale, Panthera uncia, sampling bias, scale selection, snow leopard, species distribution model | ||||
| Abstract |
Replicated multiple scale species distribution models (SDMs) have become increasingly important to identify the correct variables determining species distribution and their influences on ecological responses. This study explores multi-scale habitat relationships of the snow leopard (Panthera uncia) in two study areas on the Qinghai–Tibetan Plateau of western China. Our primary objectives were to evaluate the degree to which snow leopard habitat relationships, expressed by predictors, scales of response, and magnitude of effects, were consistent across study areas or locally landcape-specific. We coupled univariate scale optimization and the maximum entropy algorithm to produce multivariate SDMs, inferring the relative suitability for the species by ensembling top performing models. We optimized the SDMs based on average omission rate across the top models and ensembles’ overlap with a simulated reference model. Comparison of SDMs in the two study areas highlighted landscape-specific responses to limiting factors. These were dependent on the effects of the hydrological network, anthropogenic features, topographic complexity, and the heterogeneity of the landcover patch mosaic. Overall, even accounting for specific local differences, we found general landscape attributes associated with snow leopard ecological requirements, consisting of a positive association with uplands and ridges, aggregated low-contrast landscapes, and large extents of grassy and herbaceous vegetation. As a means to evaluate the performance of two bias correction methods, we explored their effects on three datasets showing a range of bias intensities. The performance of corrections depends on the bias intensity; however, density kernels offered a reliable correction strategy under all circumstances. This study reveals the multi-scale response of snow leopards to environmental attributes and confirms the role of meta-replicated study designs for the identification of spatially varying limiting factors. Furthermore, this study makes important contributions to the ongoing discussion about the best approaches for sampling bias correction. |
||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1616 | |||
| Permanent link to this record | |||||
| Author | Mallon, D. | ||||
| Title | The snow leopard in Ladakh | Type | Journal Article | ||
| Year | 1984 | Publication | International Pedigree Book of Snow Leopards | Abbreviated Journal | |
| Volume | 4 | Issue | Pages | 23-37 | |
| Keywords | Ladakh; India; livestock; herders; tracking; tracks; surveys; sign; distribution; predator; prey; herder; mortality; conservation; status; browse; 2380 | ||||
| Abstract |
Reports on 1 summer survey and four winter surveys covering some 3100 km in Ladakh, India. Reports on snow leopard sign commonly found, distribution, prey, attacks on livestock and peoples reaction, mortality factors and conservation status. Suggest recomendations for preventing unnecessary killing of snow leopards and estimates population of 100 to 200 snow leopards in Ladakh | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Full text available at URL | Approved | no | ||
| Call Number | SLN @ rana @ 78 | Serial | 642 | ||
| Permanent link to this record | |||||
| Author | Koshkarev, E.P. | ||||
| Title | Characteristics of snow leopard (Uncia uncia) movements in the Tien Shan | Type | Journal Article | ||
| Year | 1984 | Publication | International Pedigree Book of Snow Leopards | Abbreviated Journal | |
| Volume | 4 | Issue | Pages | 15-21 | |
| Keywords | Tien-Shan; Russia; Soviet-Union; Ussr; behavior; habitat; tracks; tracking; prey; predator; ibex; kills; browse; tien shan; soviet union; soviet; union; 2750 | ||||
| Abstract |
Reports on a 3 yr winter study of snow leopard movements and activity, based on following tracks in the snow in Tien Shan Mountains of USSR. Travel route preference is examined with regard to snow and terrain characteristics, and prey abundance. Snow leopard kills of ibex and hare are noted | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Full text available at URL | Approved | no | ||
| Call Number | SLN @ rana @ 403 | Serial | 570 | ||
| Permanent link to this record | |||||
| Author | Blomqvist, L. | ||||
| Title | Conservation Measurements taken for the Captive Snow Leopard, Panthera uncia, Population and a Report of Fluctuations in Stock in 1983 | Type | Journal Article | ||
| Year | 1984 | Publication | Int.Ped Book of Snow Leopards | Abbreviated Journal | |
| Volume | 4 | Issue | Pages | 55-71 | |
| Keywords | captivity; zoo; zoos; status; breeding; reproduction; conservation; browse; 2920 | ||||
| Abstract |
Reports on conservation measures over the past 10 years. Notes current snow leopard exchange programs between zoos in the US and USSR and Europe. Describes status and reproductive success of the captive snow leopard population, list animals currently in captivity. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 79 | Serial | 160 | ||
| Permanent link to this record | |||||
| Author | Fox, J.L. | ||||
| Title | An ecological survey of the proposed Langtang National Park | Type | Miscellaneous | ||
| Year | 1974 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Langtang; park; parks; reserve; refuge; reserves; Nepal; protected-area; browse; protected; area; 2340 | ||||
| Abstract |
Reports probable sighn of snow leopard at two high elevation points in the Langtang National Park | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | A report to the National Parks and Wildlife Conservation Office, Kathmandu, Nepal. | Approved | no | ||
| Call Number | SLN @ rana @ 26 | Serial | 287 | ||
| Permanent link to this record | |||||
| Author | Rowell, G. | ||||
| Title | China's Wildlife Lament | Type | Journal Article | ||
| Year | 1983 | Publication | International Wildlife | Abbreviated Journal | |
| Volume | 13 | Issue | 6 | Pages | 4-11 |
| Keywords | China; Qinghai; bounty; hunting; poaching; browse; 3200 | ||||
| Abstract |
Reports sightings of snow leopard in Qinghai Province. One freshly killed; a 15 yuan bounty exists on snow leopards | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 75 | Serial | 833 | ||
| Permanent link to this record | |||||
| Author | McVittie, R. | ||||
| Title | Nursing behavior of snow leopard cubs | Type | Journal Article | ||
| Year | 1978 | Publication | Applied-Animal-Ethology | Abbreviated Journal | |
| Volume | 4 | Issue | 2 | Pages | 159-168 |
| Keywords | suckling; behavior; veterinary; zoo; zoos; medical; browse; 1580 | ||||
| Abstract |
Reports that a preliminary project on nursing behavior in 3 young snow leopards revealed 2 phases in suckling pattern: nonnutritive and nutritive. The latter was distinguished by stereotypic rhythmical movements of the ears associated with swallowing. The cubs also demonstrated a teat preference, but the adaptive significance of such preferences and the accompanying agonistic behavior were unclear. (27 ref) (PsycINFO Database Record (c) 2000 APA, all rights reserved)(unassigned) | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Document Type: English | Approved | no | ||
| Call Number | SLN @ rana @ 37 | Serial | 669 | ||
| Permanent link to this record | |||||
| Author | Osborne, B.C.; Mallon, D.P.; Fraser, S.J.R. | ||||
| Title | Ladkh, threatened stronghold of rare Himalayan mammals | Type | Journal Article | ||
| Year | 1983 | Publication | Oryx | Abbreviated Journal | |
| Volume | 17 | Issue | Pages | 182-189 | |
| Keywords | Ladakh; India; pelt; coat; hunting; poaching; distribution; skin; livestock; herders; predator; prey; browse; 3290 | ||||
| Abstract |
Reports the results of seven visits to Ladakh over past five years. The snow leopard occurs throughout Ladakh but is not common. Livestock are often taken in winter. At least five snow leopards were shot in the Suru Valley over the past five years. The pelt is worth about $350 in Srinagar. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 80 | Serial | 756 | ||
| Permanent link to this record | |||||
| Author | Alibekov L.A. | ||||
| Title | Fauna | Type | Miscellaneous | ||
| Year | 1978 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 192-195 | ||
| Keywords | Uzbekistan; Jizak region; fauna; landscape; biotic factors; fishes; reptiles; birds; insects; mammals; snow leopard.; 5970; Russian | ||||
| Abstract |
Represented is fauna of big salt-marsh valleys and pre-Kyzylkum area, a tier of low desert foothill valleys, tiers of lowland ridges, deeply cut hillside midlands, and cold highlands of the watershed ridge-top tier in the Jizak region of Uzbekistan. The highest tier of the Jizak region, a habitat of snow leopard, Menzbier's marmot, Siberian ibex, sometimes wild Tajik sheep coming from the East, bear ascending from lower elevations, and wolf in summer, has the most adverse living conditions. Central Asia argali and stone marten inhabit in central part of the North Nurata ridge. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Full text available in RussianJournal Title: Natural conditions and resources of the Jizak region. | Approved | no | ||
| Call Number | SLN @ rana @ 576 | Serial | 60 | ||
| Permanent link to this record | |||||