Easy way to compare lists

#1

I’d like to see a simple way to compare a list of species found in a given location to the list of all species I have seen. For instance, I’m planning a trip to Death Valley, and I would love to be able to create a list of the species that occur within the park that I have never observed.

It would also be useful to compare observations within a place - if I’m surveying a specific area, what species have been observed in that place that I have not yet observed from that same place?

It would even be fun to be able to compare places to each other, and see the differences in species lists found there.

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#2

It’s still “experimental” but you can do some of this with the compare tool:
https://www.inaturalist.org/observations/compare

For example, these spring wildflowers of Illinois observed in 2018 but not yet in 2019:
https://www.inaturalist.org/observations/compare?s=eyJxdWVyaWVzIjpbeyJuYW1lIjoiMjAxOCIsInBhcmFtcyI6InllYXI9MjAxOCZwbGFjZV9pZD0zNSZsaXN0X2lkPTExMTgyMCJ9LHsibmFtZSI6IjIwMTkiLCJwYXJhbXMiOiJ5ZWFyPTIwMTkmcGxhY2VfaWQ9MzUmbGlzdF9pZD0xMTE4MjAifV0sInRhYiI6InNwZWNpZXMiLCJ0YXhvbkZpbHRlciI6Im5vdF9pbl9jb21tb24iLCJ0YXhvbkZyZXF1ZW5jaWVzU29ydEluZGV4IjoxLCJ0YXhvbkZyZXF1ZW5jaWVzU29ydE9yZGVyIjoiZGVzYyIsIm1hcExheW91dCI6ImNvbWJpbmVkIiwiaGlzdG9yeUxheW91dCI6ImNvbWJpbmVkIiwiaGlzdG9yeUludGVydmFsIjoid2VlayJ9

Or vertebrates observed in Death Valley that you’ve never observed:
https://www.inaturalist.org/observations/compare?s=eyJxdWVyaWVzIjpbeyJuYW1lIjoiRGVhdGggVmFsbGV5IiwicGFyYW1zIjoicGxhY2VfaWQ9NDUwNCZ0YXhvbl9pZD0zNTU2NzUifSx7Im5hbWUiOiJncmF5c3F1aXJyZWwiLCJwYXJhbXMiOiJ1c2VyX2lkPWdyYXlzcXVpcnJlbCZ0YXhvbl9pZD0zNTU2NzUifV0sInRhYiI6InNwZWNpZXMiLCJ0YXhvbkZpbHRlciI6Im5vdF9pbl9jb21tb24iLCJ0YXhvbkZyZXF1ZW5jaWVzU29ydEluZGV4IjoxLCJ0YXhvbkZyZXF1ZW5jaWVzU29ydE9yZGVyIjoiZGVzYyIsIm1hcExheW91dCI6ImNvbWJpbmVkIiwiaGlzdG9yeUxheW91dCI6ImNvbWJpbmVkIiwiaGlzdG9yeUludGVydmFsIjoid2VlayJ9

You have to narrow your searches to groups of taxa with fewer than 500 results, but other than that it’s super useful.

You can also add the query “unobserved_by_user_id=graysquirrel” to an observations search URL to get some of that info: https://www.inaturalist.org/observations?place_id=4504&view=species&unobserved_by_user_id=graysquirrel

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#3

Why is this not what was requested?

https://www.inaturalist.org/lists/2802-Death-Valley-National-Park-Check-List/compare?show=left&utf8=✓&with=87551-kl_kleins-Life-List

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#4

Lists are pretty buggy—mine don’t show all the species I’ve observed. But yeah, if they were not buggy, it would be a nice way to compare.

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#5

Since there are several different ways to compare lists, I’m going to close this topic.

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closed #6
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