Estimating species relative abundances from museum records
Estimating species relative abundances from museum records
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DOI：
10.1111/2041-210x.13705
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发表时间：
2021-09-07
影响因子：
6.6
通讯作者：
Primack, Richard B.
中科院分区：
文献类型：
--
作者：
Gotelli, Nicholas J.;Booher, Douglas B.;Primack, Richard B.
有日期的、有地理参照的博物馆标本是重建物种分布和丰度模式的丰富数据源。然而，博物馆记录可能偏向于稀有物种的过度代表，目前还不清楚博物馆记录是否可以用来估计该领域的相对丰度。我们收集了17个耦合场和博物馆数据集，定量比较相对丰度估计与狄利克雷分布。总的来说，这些数据集包括73，039个博物馆记录和2，240个物种的1，405，316个实地观察。虽然博物馆记录的稀有物种的相对丰度高估了1倍至100倍以上（中位数研究= 9.0），博物馆出现记录估计的物种的相对丰度与标准化实地调查估计的相对丰度密切相关（r（2）范围为0.10-0.91，中位数研究= 0.43）。这些分析提供了一个理由，估计物种相对丰度与精心策划的博物馆发生记录，这可能会允许检测常见和稀有物种的排名顺序的时间或空间变化。
Dated, geo-referenced museum specimens are a rich data source for reconstructing species' distribution and abundance patterns. However, museum records are potentially biased towards over-representation of rare species, and it is unclear whether museum records can be used to estimate relative abundance in the field. We assembled 17 coupled field and museum datasets to quantitatively compare relative abundance estimates with the Dirichlet distribution. Collectively, these datasets comprise 73,039 museum records and 1,405,316 field observations of 2,240 species. Although museum records of rare species overestimated relative abundance by 1-fold to over 100-fold (median study = 9.0), the relative abundance of species estimated from museum occurrence records was strongly correlated with relative abundance estimated from standardized field surveys (r(2) range of 0.10-0.91, median study = 0.43). These analyses provide a justification for estimating species relative abundance with carefully curated museum occurrence records, which may allow for the detection of temporal or spatial shifts in the rank ordering of common and rare species.