One further graph...
These observations are separated into the main classes. Clearly birds are by far the most common observation, note the logarithmic scale. The data hints that the publication rate for mammals is slower, but it is not clear. Regards Quentin
[image: Inline images 1]
Dr. Quentin Groom (Botany and Information Technology)
Botanic Garden Meise Domein van Bouchout B-1860 Meise Belgium
ORCID: 0000-0002-0596-5376 http://orcid.org/0000-0002-0596-5376
Landline; +32 (0) 226 009 20 ext. 364 FAX: +32 (0) 226 009 45
E-mail: quentin.groom@plantentuinmeise.be Skype name: qgroom Website: www.botanicgarden.be
On 25 September 2016 at 13:19, Quentin Groom < quentin.groom@plantentuinmeise.be> wrote:
I've had a look at the GBIF data for the 100 Worst Aliens. Just to remind you, the intention is to see how long it takes for the records of invasive species take to reach GBIF.
This first graph is a histogram showing the days between observation (eventdate) and publication date (date_created) for each publication year. What is notable is that there is no indication that the time to publication is reducing with time. The GBIF analytics suggest that data are getting to GBIF faster, but this is not clear from this subset (http://www.gbif.org/ analytics/global).
[image: Inline images 4]
Grouping all the observations together this histogram summarises the rate of publication. Clearly, most observations take longer than a year to be published. [image: Inline images 2]
This is the same as above except for specimens. The numbers of records are a lot less and I assume they take longer to get to GBIF as a result of the the current digitisation of herbaria and museums. [image: Inline images 3]
Regards Quentin
Dr. Quentin Groom (Botany and Information Technology)
Botanic Garden Meise Domein van Bouchout B-1860 Meise Belgium
ORCID: 0000-0002-0596-5376 http://orcid.org/0000-0002-0596-5376
Landline; +32 (0) 226 009 20 ext. 364 FAX: +32 (0) 226 009 45
E-mail: quentin.groom@plantentuinmeise.be Skype name: qgroom Website: www.botanicgarden.be
