How did these records get into GBIF in the first place? The data come from many sources -- various museums, universities, and other institutions. Specimen label data has been recorded and digitized in spreadsheets, and this info is contributed to GBIF. I wrote a script in R to demonstrate how to import records for a desired taxon found in a region, and then I use R functions to display the data.
Below I display the number of eucharitid records per year in two different ways.
On the left is a violin plot, which I think is a neat way to look at how data are distributed. The width of the violin is relative to the number of yearly records -- not the actual values, but a probability density distribution. The boxplot within shows the median value as a white dot. I excluded zeros here, so we aren't seeing the years where no Eucharitidae were recorded (this keeps the script slightly simpler).
On the right is a chronological view of records per year, excluding years with zero records. I've distinguished the years having more than ten records by using a darker bar color.
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