Question from Nora https://twitter.com/laguanegna/status/659345136841793536
Is there a way I can tell GBIF to show what was the data they had for Magnoliophyta back in Oct 13/2010?
I assume two things:
- you don't mean specimens/records here, but taxa within Magnoliophyta
- by 2010-10-13, you mean as of that date, not collected on that date
If yes to both, I'd approach it this way:
Search for Magnoliophyta against GBIF backbone taxonomy
name <- name_backbone(name = "Magnoliophyta")
#>  49
Search for occurrences (could use
occ_count(), but year based searching isn't working right now)
res <- occ_search(taxonKey = name$usageKey, year = "*,2010", limit = 10)
#>  0
#>  10
#>  FALSE
#>  94648899
A total of 94648899 records. As far as I know, you can't get more detailed than that with the date searching.
To actually get records, don't use
occ_search(), but instead use the
occ_download*() functions, which is the same thing as using from the GBIF website, but this way you do it from R. For example:
occ_download('taxonKey = 49', 'year <= 2010')
which will ask GBIF to prepare a download for you. You could get these results and further filter to the specific date October 13, 2010. It will be a lot of data, so best probably to put in a database first, I can help if you want.