环境 DNA 宏条形码（metabarcoding）技术如何实现对多个物种类群的同时监测？
How does environmental DNA metabarcoding enable simultaneous monitoring of multiple species groups?
宏条形码对样本中所有生物的特定 DNA 片段进行高通量测序，再用通用或类群特异性引物比对参考库，一次性检出鱼类、两栖类、无脊椎类等多类群。它极大提升了监测通量，但受引物偏好与数据库完整性限制，可能出现假阴性。
Metabarcoding sequences a specific DNA region from all organisms in a sample via high-throughput sequencing, then matches universal or taxon-specific primers to reference libraries to detect fish, amphibians, invertebrates and more at once. It boosts monitoring throughput, but primer bias and incomplete databases can cause false negatives.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Miya 等,《MiFish metabarcoding: a high-throughput approach for simultaneous detection of multiple fish species from environmental DNA and other samples》,Fisheries Science,2020 (DOI: 10.1007/s12562-020-01461-x)
Miya et al., 'MiFish metabarcoding: a high-throughput approach for simultaneous detection of multiple fish species from environmental DNA and other samples', Fisheries Science, 2020, DOI: 10.1007/s12562-020-01461-x
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.1007/s12562-020-01461-x
#eDNA #宏条形码 #多类群监测
遥感与物种分布模型如何协同支撑大尺度生物多样性评估？
How do remote sensing and species distribution models jointly support large-scale biodiversity assessment?
遥感提供植被指数、温度和降水等环境变量，物种分布模型据此推算物种潜在适生区并预测气候变化下的迁移。该方法弥补了地面调查覆盖不足，但依赖物种出现点质量，存在模型外推不确定性。
Remote sensing supplies environmental variables such as vegetation indices, temperature and precipitation, which species distribution models use to map potential habitats and project climate-driven shifts. It fills gaps left by ground surveys but depends on occurrence-data quality and carries extrapolation uncertainty.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Choe 等,《Mapping Potential Plant Species Richness over Large Areas with Deep Learning, MODIS, and Species Distribution Models》,Remote Sensing,2021 (DOI: 10.3390/rs13132490)
Choe et al., 'Mapping Potential Plant Species Richness over Large Areas with Deep Learning, MODIS, and Species Distribution Models', Remote Sensing, 2021, DOI: 10.3390/rs13132490
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.3390/rs13132490
#遥感 #物种分布模型 #适生区
微卫星与基因测序技术在遗传多样性监测中如何应用？
How are microsatellites and gene sequencing applied in genetic diversity monitoring?
微卫星等分子标记可量化种群内等位基因丰富度与近交系数，揭示种群瓶颈与基因流；高通量测序进一步刻画全基因组水平多样性。这类数据对制定极小种群物种的保护优先级至关重要。
Molecular markers such as microsatellites quantify within-population allele richness and inbreeding, revealing bottlenecks and gene flow, while high-throughput sequencing characterizes genome-wide diversity. Such data are crucial for prioritizing conservation of small populations.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
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。
Science 种群基因组学研究
Science — population genomics research
#遗传多样性 #微卫星 #种群基因组
红外相机陷阱如何帮助开展野生哺乳动物调查？
How do camera traps aid surveys of wild mammals?
红外相机在动物经过时自动触发拍摄，可全天候、大范围记录物种出现与相对丰度，并减少人为干扰。配合占用模型，能估算物种分布与活动节律，是中大型地栖动物监测的标配工具。
Camera traps auto-trigger when animals pass, recording species presence and relative abundance across large areas day and night with minimal disturbance. Combined with occupancy models, they estimate distribution and activity patterns and are standard for medium-to-large terrestrial mammals.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
G. Tyler Miller,《Living in the Environment》Cengage 多版
G. T. Miller, Living in the Environment, Cengage Learning, various editions
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL66394W：Living in the environment
#红外相机 #占用模型 #相对丰度
什么是指示物种，它在环境监测中有什么作用？
What is an indicator species and what role does it play in environmental monitoring?
指示物种对环境因子的变化反应灵敏且可预测，其种群或生理状态可反映栖息地质量与污染程度。例如地衣对二氧化硫敏感，常被用于大气酸沉降监测。
An indicator species responds sensitively and predictably to environmental change, so its population or physiology can reflect habitat quality and pollution levels. Lichens, for example, are sensitive to sulfur dioxide and are used to monitor acid deposition.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
G. Tyler Miller,《Living in the Environment》Cengage 多版
G. T. Miller, Living in the Environment, Cengage Learning, various editions
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL66394W：Living in the environment
#指示物种 #生物指示 #栖息地质量
为何鸟类常被用作生态系统健康的指示类群？
Why are birds frequently used as an indicator group for ecosystem health?
鸟类处于食物链中上层、移动性强且分类与分布数据丰富，其种群变化能综合反映栖息地破碎化、污染与气候变化。标准化样线调查使鸟类成为监测网络中最具可比性的指标之一。
Birds occupy upper trophic levels, move widely and have rich taxonomic and distribution data, so their population changes integrate habitat fragmentation, pollution and climate signals. Standardized point-count surveys make them among the most comparable monitoring indicators.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
《环境科学》生态指示生物研究
Environmental Science journal — bioindicator research
#鸟类 #指示类群 #种群监测
公民科学在生物多样性监测中能发挥哪些作用？
What roles can citizen science play in biodiversity monitoring?
业余观察者借助手机应用提交物种照片与位置，可在时空上极大扩展采样覆盖，并提升公众生态意识。数据需经专家校验以控制鉴定误差，方可纳入科研数据库。
Amateur observers submit species photos and locations via apps, vastly expanding spatial–temporal sampling coverage and raising public ecological awareness. Records need expert verification to control identification error before entering research databases.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Chandler, See, Copas, Bonde,《Contribution of citizen science towards international biodiversity monitoring》,Biological Conservation,2017 (DOI: 10.1016/j.biocon.2016.09.004)
Chandler, See, Copas, Bonde, 'Contribution of citizen science towards international biodiversity monitoring', Biological Conservation, 2017, DOI: 10.1016/j.biocon.2016.09.004
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.1016/j.biocon.2016.09.004
#公民科学 #公众监测 #数据校验