生物多样性危机

量化当前生物多样性危机的规模：物种灭绝速度已达到背景灭绝速度的100至1000倍；解释衡量生物多样性丧失的方法（物种-面积关系、种群生存力分析、IUCN红色名录等级）；评估再野化案例研究——黄石公园重新引入狼群后触发营养级联，甚至改变了河流走向；伊比利亚猞猁的种群恢复；阐述最小可存活种群理论和保护分诊；探讨在决定优先保护哪些物种时涉及的伦理争论。

Quantify the current biodiversity crisis: extinction rates 100-1000x the background rate; explain methods for measuring biodiversity loss (species-area relationship, population viability analysis, IUCN Red List categories); evaluate rewilding case studies — Yellowstone wolf reintroduction triggering a trophic cascade that changed river courses; Iberian lynx recovery; describe minimum viable population theory and conservation triage; examine ethical debates in deciding which species to prioritise

评估问题 / Assessment

{{name}}能否描述一下黄石国家公园在重新引入狼群后发生了什么——当一个捕食者回归，哪些意想不到的变化会波及整个生态系统，甚至影响到河流？

Can {{name}} describe what happened to Yellowstone National Park after wolves were reintroduced — what unexpected changes rippled through the whole ecosystem, including effects on rivers, as a result of one predator coming back?