1.Comparison among threatened categories of conifers from China;中国松杉类植物濒危等级划分的比较 3)endangered species criteria濒危物种等级 4)endangered[英][in'deind??d][美][?n'dend??d]濒危 1.The endangered causes and preserving strategies for Euryodendron excelsum, a plant endemic to china...
Category count models have been used for a variety of resource management applications, including conservation of endangered species, land management and the management of pest infestations.3. This paper provides for the first time a general framework for such models, briefly reviews existing ...
濒危物种的判定基于其灭绝风险及栖息地威胁程度。美国《濒危物种法》将濒危物种细分为两类:“濒危”(Endangered)指当前已处于灭绝边缘的物种,如加州秃鹰;“受威胁”(Threatened)则指未来可能转为濒危的物种,如北极熊。这种分类有助于优先分配保护资源,针对不同风险等级制定差异化管理策略。...
(1) On the top of the hill stands a(n) ___ dating back to over 800 years ago. (2) He is the only one of the boys who ___ in the English Corner every week. (3) Efforts in wildlife ___ focus on protecting endangered species and their habitats to prevent their extinction and m...
Populations have fallen and habitats have been lost due to ocean warming and human development, according to the International Union for Conservation of Nature (IUCN), which lists the species as seriously endangered. One area where they can still be seen is Fish Rock, an underwater cavern (...
How many endangered species of reptiles, mammals, birds etc are found in different countries? What are the national levels of pollution? Emissions? Nuclear waste generation? Salination of water resources and expenditure for waste treatment. International treaties, ratification and complaince. You'll fi...
“species”属于单复数同形名词,类似“deer”“sheep”等词。其单复数形式均写作“species”,例如: 单数用法:This species is endangered.(这一物种濒临灭绝) 复数用法:Several species are newly discovered.(多个物种被新发现) 唯一区别在于动词的搭配(如is/are),而非单词本身的变...
Endangered'的固定搭配主要围绕物种保护与生态研究领域展开,其核心用法可分为状态描述、对象指代及保护实践三类。以下是具体分类解析
National Endangered Species Day: Protecting life on the brink Every third Friday of May, we pause to recognize the...Read more... 05-16-2025 World's oldest ceropode has been found: A 165-million-year-old femur The discovery of a fossilized femur belonging to a cerapodan...Read more.....
Guangxi is possessed of 124 species of rare and endangered plants (REPs) of China, and is one of the provinces that rich in REPs in China. 除了对珍稀植物资源进行观赏价值的论述和评价外,还针对珍稀植物观赏特性的应用现状和前景,提出了在园林绿化建设中引种推广珍稀植物上存在的问题及相应的对策。