I suggest starting with the Wiki threads about papers that used iNaturalist data. You will see how wide the possibilities are.
Published papers that use iNaturalist data - wiki 1 (up to 2019) - General - iNaturalist Community Forum
Published papers that use iNaturalist data - wiki 2 (2020 and 2021) - General - iNaturalist Community Forum
Published papers that use iNaturalist data - wiki 4 (2024) - General - iNaturalist Community Forum
Number three is in the reply above. There are hundreds of possibilities.
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