《濒危野生动植物种国际贸易公约》附录Ⅰ与附录Ⅱ物种的商业贸易管制有何本质区别？
What is the essential difference in commercial-trade controls between CITES Appendix I and Appendix II species?
附录Ⅰ收录面临灭绝威胁的物种，其国际商业贸易原则上被全面禁止，仅科研、保育等特殊用途经进出口国双重许可后放行；附录Ⅱ物种虽未必然濒危，但贸易须受管控，出口国须签发许可证并完成“非致危性判定”，确认出口不会损害该物种野生种群的存续。这种分级把管制强度与物种受威胁程度和贸易压力直接挂钩。
Appendix I lists species threatened with extinction; their commercial international trade is essentially banned, with narrow exemptions for scientific or conservation purposes granted only under permits from both the importing and exporting countries. Appendix II species are not necessarily threatened, but trade is controlled: the exporting country must issue a permit backed by a non-detriment finding confirming that the offtake will not harm the species' wild populations. This tiering ties regulatory stringency directly to extinction risk and trade pressure.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
CITES秘书处，《濒危野生动植物种国际贸易公约》文本与附录（1975年生效）
CITES Secretariat, Convention on International Trade in Endangered Species of Wild Fauna and Flora, text and Appendices (in force 1975)
#野生动植物贸易 #CITES #附录管制
穿山甲被称为全球遭非法贸易最严重的哺乳动物之一。它的鳞片在成分上与人的指甲相同，这个化学事实如何反而加剧了对它的盗猎与走私？
The pangolin ranks among the world's most heavily trafficked wild mammals. Its scales are chemically identical to human fingernails—so how does that very fact fuel the poaching and smuggling crisis?
穿山甲鳞片由角蛋白构成，与人指甲同质，并无严格临床证据支持其药效，但传统需求持续推高价格，使八种穿山甲全部沦为重点盗猎目标。2016年CITES第17届缔约方大会把它们整体升入附录I，商业性国际贸易自此禁止；然而禁令没有消解需求，黑市价格上涨反而放大盗猎激励，治理重心因此转向削减消费需求与摧毁走私网络。
Pangolin scales are pure keratin, the same protein as human fingernails, and no rigorous clinical evidence backs their claimed medicinal effects—yet entrenched demand keeps prices high, making all eight species prime poaching targets. At CITES CoP17 in 2016 they were collectively uplisted to Appendix I, banning commercial international trade from 2017. Bans suppress rather than erase demand, though: rising black-market prices sharpen poaching incentives, so strategy has shifted toward cutting consumer demand and dismantling smuggling networks.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-02
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Challender等《理解市场以保护受贸易威胁的物种》，Biological Conservation第187卷，2015
Challender, Harrop & MacMillan, Understanding markets to conserve trade-threatened species in CITES, Biological Conservation 187: 249-259, 2015
独立核验依据 · Independent verification: 核验依据 1 CROSSREF 标识 10.1016/j.biocon.2015.04.015：Understanding m
#穿山甲 #角蛋白 #CITES附录I #盗猎
欧洲鳗鲡的人工繁育至今无法商业化，这个技术瓶颈如何反而助长了“玻璃鳗”的走私贸易？
Why has commercial breeding of the European eel never been achieved, and how does that technical bottleneck fuel the smuggling trade in glass eels?
鳗鲡在大洋深处产卵，幼体要经历叶状的柳叶鳗等变态阶段，所需的环境条件至今无法在养殖中复现，因此各地鳗鱼养殖场的苗种仍依赖捕捞野生玻璃鳗。欧洲鳗鲡资源持续衰退且被限制出口后，亚洲市场高价与合法供应短缺形成巨大利差，走私者将玻璃鳗偷运出境牟利，又反过来加重野生种群承受的捕捞压力。
Eels spawn in remote ocean depths, and their larvae pass through leaf-shaped leptocephalus stages whose conditions have never been reproduced in captivity, so eel farms worldwide still depend on wild-caught glass eels. After European eel stocks kept declining and exports were restricted, high Asian prices met scarce legal supply, opening a wide margin that smugglers capture by trafficking glass eels abroad, which in turn adds pressure on wild populations.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：此条未指向带版次的可引用著作（通识性内容、机构文件或未展开的英文书名），本库不提供独立书目出处；如需精确引用，需由编辑补全具体篇目与版次。
ICES/GFCM/EIFAAC 联合鳗鲡工作组（WGEEL）年度报告
Joint EIFAAC/ICES/GFCM Working Group on Eel (WGEEL), annual report, ICES
#欧洲鳗鲡 #玻璃鳗走私 #人工繁育瓶颈