Results 31 to 40 of about 364 (126)
野生动物学报东北虎（Panthera tigris altaica）作为世界上最大的猫科（Felidae）动物，同时也是濒危物种，其个体识别是回答进化生物学中许多重大问题的关键步骤。尽管目前已提出虹膜和DNA分析等传统方法用于东北虎个体识别，但这些方法在远程获取和样本收集方面面临挑战，且在很大程度上依赖人工识别。随着计算机视觉技术的发展，深度学习成为动物个体识别的强大工具。因此，提出使用基于深度学习的方法进行东北虎个体识别。首先收集黑龙江东北虎林园20只东北虎个体的监控视频图像，然后采用Mask R ...
刘丹 +5 more
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Wildlife Letters, Volume 1, Issue 4, Page 163-170, December 2023., 2023 Per‐ and polyfluoroalkyl substances (PFASs), especially long‐chain perfluorinated carboxylates and perfluorinated sulfonic acids, were considered as global environmental contaminants due to their wide industrial and commercial applications and their threat to human and animal health.
Luyao Wang +7 more
wiley +1 more source
Wildlife Letters, Volume 1, Issue 3, Page 119-130, September 2023., 2023 We collected Amur tiger track data and occurrence data through snow track tracking, sample line surveys, and camera traps. The study concluded that forest roads, scrub vegetation, and human landscape factors were the main factors influencing Amur tiger movements at fine scales and examined the negative correlation between tiger path curvature values ...
Ying Wang +9 more
wiley +1 more source
Wildlife Letters, Volume 1, Issue 1, Page 32-41, March 2023., 2023 AF‐TigerNet automatically detects the position of Amur tigers and determines detection confidence. Overall network structure of AF‐TigerNet consists of the backbone, neck, and head. The backbone is the modified CSPNet which outputs C3–C5 feature maps to the neck with the channel numbers 64 (C3), 128 (C4), and 256 (C5).
Bohan Liu, Zhilin Qu
wiley +1 more source
欲求层次基围· 机微面面观：个人· 族群之行为志向· 兴味指向的极致原理及机制规律试掘（《中日社会、文化多面比较：生活、行为篇—日常光景机微解析》绪论之1 · 下） [PDF]
, 2012 departmental bulletin ...
33141, 夏, 刚
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Assessing the common welfare in the Giant Panda National Park:From the perspective of stakeholders [PDF]
Aims: Common welfare is one of the three foundational concepts in the establishment of Chinese national parks. Existing research predominantly focused on theoretical and qualitative analyses, with few empirical explorations and quantitative discussions ...
Li, Shengzhi +3 more
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Wildlife Letters, EarlyView.In the winter of 2021/2022, a winter track survey revealed 43–46 tigers (without cubs) in 5.4 thousand km2 of suitable habitats in the Southwest Primorsky Province of Russia. In the same period, a network of camera traps registered 54 adult/subadult tigers here.
Yury Darman, Dina Matiukhina
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, 2013 2013-07针对以往的“提喻是转喻的一个小类”这一看法，本文主要从范畴关系和整体与部分之间的关系的角度，重新考察了提喻和转喻之间的关系。虽然两者之间有着某种的相似性，但我们认为提喻表达的范畴关系和转喻表达的整体与部分之间的关系是两种截然不同的关系，而且从认知能力的角度看，前者反映的是一般化能力，而后者体现的是参照点能力。由此，我们提出“提喻独立观”，并对提喻的定义和分类作了一个初步性考察。In opposition to the classical theory that treated ...
55226, 韩, 涛
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Wildlife Letters, Volume 3, Issue 1, Page 7-15, March 2025.Human–tiger conflict (HTC) is an important barrier to tiger recovery in the Laoyeling landscape of Northeast China, where 90% of China's Amur tiger population is living. The distributions of tiger habitat and HTC risk were predicted; 35.24% of high‐risk areas of HTC are suitable for tiger living.
Yongchao Jin +8 more
wiley +1 more source
, 2011 我国在野生动物的保护方面取得了可喜的成绩,但是,野生动物致人损害的事件频繁发生,也严重影响了人们对野生动物保护的积极性。因此,对野生动物致害进行法律救济是野生动物保护机制不可忽视的环节。我国的现行立法对野生动物致害提供了一定程度的救济,但是这些救济仍然贫乏,相关规定存在着诸多的漏洞与空白。国外的立法经验为我国野生动物致害救济制度的完善提供了良好的借鉴。我国野生动物致害的救济制度应从统一立法、明确野生动物的归属状态、建立专项赔偿基金、建立有效保险机制等方面进行完善。农业部课题 ...
罗施福
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