iNaturalist Research-grade Observations

Latest version published by Test Organization #1 on Apr 22, 2020 Test Organization #1
Publication date:
22 April 2020
Published by:
Test Organization #1
CC-BY 4.0

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Observations from, an online social network of people sharing biodiversity information to help each other learn about nature. iNaturalist is a joint initiative of the California Academy of Sciences and the National Geographic Society.

Observations included in this archive met the following requirements:

* Published under one of the following licenses or waivers: 1) 2), 3)

* Achieved one of following iNaturalist quality grades: Research

* Created on or before 2020-04-09T22:41:14-07:00

You can view observations meeting these requirements at


The table below shows only published versions of the resource that are publicly accessible.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Test Organization #1. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has not been registered with GBIF




Ken-ichi Ueda
  • Metadata Provider
  • Originator
  • Point Of Contact
Co-director, iNaturalist
iNaturalist / California Academy of Sciences
55 Music Concourse Dr., Golden Gate Park
94118 San Francsico

Geographic Coverage

Bounding Box

Bounding Coordinates South West [-89.927, -179.999], North East [89.995, 180]

Temporal Coverage

Start Date / End Date 1897-12-06 / 2020-04-10

Sampling Methods

No Description available

Quality Control iNaturalist observations become candidates for Research Grade when they have a photo, date, and coordinates. They become Research Grade when the community agrees on an identification. If the community has multiple opinions on what taxon has been observed, iNaturalist chooses a taxon from all the proposed taxa (an implied ancestor taxa of the proposed taxa) that more than 2/3 of the voters agree with. The full algorithm is as follows: for all identified taxa and the taxa that contain them (e.g. genus Homo contains Homo sapiens), score each as the ratio between the number of cumulative IDs for that taxon over the sum of the cumulative IDs, the number of more conservative IDs added after the first ID of that taxon, and the number of IDs that are completely different (i.e. IDs of taxa that do not contain the taxon being scored). For the identified taxa that have a score over 2/3 and at least 2 identifications, iNaturalist chooses the lowest ranked taxon as the community taxon. An observation can lose Research Grade status if the community has voted it down on several metrics, including whether the organism is wild / naturalized (i.e. not captive / cultivated), whether the location and date seem accurate, and whether the content of the observation is appropriate for the context (e.g. violation of iNaturalist's Terms of Service, copyright violation, plagiarism, etc.). To learn more about data quality on iNaturalist, see

Method step description:

  1. Observation recorded and verified by the community

Additional Metadata

Purpose is a website where anyone can record their observations from nature. Members record observations for numerous reasons, including participation in citizen science projects, school projects, and personal fulfillment.
Alternative Identifiers