Following up one day later, I saw this study come across my LinkedIn feed. I went to IUPUI for my undergrad, and they are done some great research.

https://news.iu.edu/stories/2021/06/iupui/releases/18-vegetation-growth-stunted-by-water-constraints-in-warming-climate.html

I wouldn't have paid as much attention to it had it not been for your info about the saguro cactus, which they used for the online article photo.

Thanks!