A test of six simple indices to display the phenology of butterflies using a large multi-source database
Ecological Indicators(2020)
摘要
•Opportunistic records may provide meaningful information on species phenology.•Raw indices perform as well as corrected measures for butterflies.•Expert opinion and standardized data were used to calibrate opportunistic data
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关键词
Opportunistic data,Citizen science,Lepidoptera,Flight period,Seasonality,Bias correction,Sampling effort
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