Results 21 to 30 of about 1,886,537 (208)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grasslands worldwide are experiencing severe degradation due to overgrazing, climate change and anthropogenic disturbances, resulting in substantial declines in biodiversity and ecosystem functioning.
Xiaoqi Wang +5 more
wiley +1 more source
野生动物学报, 1992 野生动物保护法的核心是保护野生动物资源,拯救珍贵、濒危野生动物。但是,实践当中破坏野生动物资源和非法捕杀国家重点保护的珍贵、濒危野生动物的事件还时有发生。为此,野生动物保护法专门规定了法律责任一章。这一讲就给大家介绍一下违反野生动物保护法应负的法律责任的问题。一、什么是法律责任法律责任是指由于违法行为所应承担的法律后果。国家工作人员、公民或者法人,拒不履行法律义务,或者从事了法律所禁止的行为 ...
王洪杰
doaj
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) serve as important indicators for assessing nutrient balance in forest ecosystems, but their relationships with photosynthetic dynamics require deeper characterization.
Minghao Chen +9 more
wiley +1 more source
Looking at Us Through Their Eyes. The Analytical Process from Ethnographic Perspectives1
Journal of Analytical Psychology, EarlyView.Abstract This article looks at the analytical situation through the Others’ eyes—through examples from contemporary ethnographies of foreign cultures. It discusses the following issues: a) The analogy between the ontological worlds of the dead, ghosts, animals and dreams in “primitive populations” and the analytical psychological descriptions of the ...
Stefano Carta
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2023 高等级病原微生物实验室是国家生物安全的战略科技力量，是国之重器。完善高等级病原微生物实验室管理政策制度，强化实验室生物安全监管，对于保障国家生物安全具有重要意义。本文通过梳理我国现行的高等级病原微生物实验室生物安全法律法规、标准规范等，总结我国在法规监管体系、分级分类管理、标准规范体系、机构法人责任、职业准入制度和人员培训体系等方面存在的问题和面临的挑战，并提出针对性的政策建议，为我国高等级病原微生物实验室生物安全管理提供决策支撑。
赵添羽, 朱敏
doaj +2 more sources
中国濒危野生生物栖息地法律保护多元性之缺失和完善——与美国濒危物种栖息地法律保护的比较
野生动物学报, 2003 栖息地是指生物生活的空间和其中全部生态因子的总和,包括个体或群体生物生存所需要的非生物环境和其他生物。我国法律法规中对应用语是野生动物的生存环境或生息繁衍场所,以及野生植物的生长环境。1966年美国《濒危物种保存法》就提到 ...
王小钢
doaj
Methods in Ecology and Evolution, EarlyView.Abstract Elliptic Fourier analysis (EFA) is often employed in geometric morphometrics (GM), but the normalization of elliptic Fourier descriptor (EFD) has persistently posed challenges for obtaining unique and comparable results, especially in the application of outline‐based GM methods, which limits the implementation in automated analysis of numerous,
Hui Wu +6 more
wiley +1 more source
野生动物学报, 2006 野生动物驯养繁殖在世界野生动物资源保护中具有重要作用,有关野生动物驯养繁殖的法律制度也成为各国野生动物资源保护立法的主要内容。本文针对目前中国野生动物驯养繁殖的立法现状与存在问题,提出完善中国野生动物驯养繁殖的国内法对策,以推进中国野生动物资源保护立法的发展。
陈春艳
doaj
Zhejiang Daxue xuebao. Lixue ban, 2007 应用氢化物发生-原子荧光光谱方法(HG-AFS)研究了舟山岛海域沉积物和生物样中砷的质量分数并进行了评价，结果如下：1.建立方法的线性方程为，If(As) = 6.166 9 C—1.064 9，方法的检出限为0.2 ng/mL，该法测定两种标准样品的偏差分剐为—6.6%和0.2%.2.沉积物和生物体中均检测到一定量的砷，沉积物中砷质量分数为：12.33~16.49 µg/g，生物样中质量分数为：1.31~17.25 µg/g.参考海洋沉积物和生物质量标准，前者属于一类沉积物，后者属于二类海洋生物 ...
WANGPu(王镨) +3 more
doaj +1 more source
When and why to give shorebirds a head start
Conservation Biology, EarlyView.Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source