Results 171 to 180 of about 3,799 (190)

Pose-Guided Complementary Features Learning for Amur Tiger Re-Identification

2019 IEEE/CVF International Conference on Computer Vision Workshop (ICCVW), 2019
Re-identifying different animal individuals is of significant importance to animal behavior and ecology research and protecting endangered species. This paper focuses on Amur tiger re-identification (re-ID) using computer vision (CV) technology. State-of-the-art CV-based Amur tiger re-ID methods extract local features from different body parts of ...
Ning Liu, Qijun Zhao, Nan Zhang, Xinhua Cheng, Jianing Zhu   +4 more
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Behavior observation of Amur tiger (Panthera tigris altaica) in captivity

Journal of Forestry Research, 2002
The various behaviors of four Amur tigers in captivity were investigated in March from 1998 to 2001 in Harbin Zoo. The results showed that the behavior could be divided into 5 major types: moving, resting, sleeping, eating and other behaviors (including drinking, urinating, grooming, playing, standing).
Teng Li-wei, Li Feng, Liu Zhen-sheng
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Early pregnancy diagnosis of captive Amur tigers (Panthera tigris altaica)

Acta Ecologica Sinica, 2019
Abstract From January 2015 to February 2017, urine samples was collected from twelve captive female Amur tigers during both their mating (or receptive) periods and the first four weeks after mating at the Hengdaohezi Feline Breeding Center (FBC) in China. A radioimmunoassay was applied to determine the progesterone levels in the urine samples.
Zhenglei Qiao, Jianzhang Ma, Yan Xing, Chunyan Liu, Zhimin Jin, Shaocheng Yang, Changhai Liu, Miao Wang   +7 more
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Estimating abundance and density of Amur tigers along the Sino–Russian border

Integrative Zoology, 2016
AbstractAs an apex predator the Amur tiger (Panthera tigris altaica) could play a pivotal role in maintaining the integrity of forest ecosystems in Northeast Asia. Due to habitat loss and harvest over the past century, tigers rapidly declined in China and are now restricted to the Russian Far East and bordering habitat in nearby China.
Wenhong, Xiao, Limin, Feng, Pu, Mou, Dale G, Miquelle, Mark, Hebblewhite, Joshua F, Goldberg, Hugh S, Robinson, Xiaodan, Zhao, Bo, Zhou, Tianming, Wang, Jianping, Ge   +10 more
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The fecal epigenetic clock of Amur Tigers

The fecal epigenetic clock of Amur Tigers.
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[Genetic diversity of microsatellite loci in captive Amur tigers].

Yi chuan = Hereditas, 2006
The tiger is one of the most threatened wildlife species since the abundance and distribution of tiger have decreased dramatically in the last century. The wild Amur tiger (Panthera tigris altaica) only distributed in northeast China, the far east area of Russia and the north Korea and its size of wild population is about 450 in the world and 20 in ...
Yu-Gaung, Zhang, Di-Qiang, Li, Qi-Ming, Xiao, Li-Qun, Rao, Xue-Wen, Zhang   +4 more
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Combination of facial and nose features of Amur tigers to determine age

Integrative Zoology
We found that the area of black round or irregular-shaped spots on the tiger's nose increased with age, indicating a positive relationship between age and nose features. We used the deep learning model to train the facial and nose image features to identify the age of Amur tigers, using a combination of classification and prediction methods to achieve ...
Caiping, Zhao, Wenrui, Dai, Qiang, Liu, Dongqi, Liu, Nathan James, Roberts, Zhaoli, Liu, Ming, Gong, Hongkun, Qiu, Changhai, Liu, Dan, Liu, Guangkai, Ma, Guangshun, Jiang   +11 more
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[Amur tiger: path to the third millennium (experience of development of the "Strategy of preservation of the Amur tiger in Russia")].

Izvestiia Akademii nauk. Seriia biologicheskaia, 1998
The development of a system of measures for conservation of the Amur tiger is summarized. In the middle of the 1990s, no marked reduction in the numbers of the Amur tiger took place in Russia; the animals were always present in most of the forest-covered area of the Primorskii and South Khababrovsk districts. However, new threats to the survival of the
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Amur tiger individual automatic identification based on object detection

Acta Ecologica Sinica, 2021
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Research on Re-Identification of Amur Tigers and Bengal Tigers

2024 2nd International Conference on Big Data and Privacy Computing (BDPC)
Yuanze Xia, Yanling Hu, Wenjian Liu, Tengcheng Que   +3 more
openaire   +1 more source