Thank you very much for taking the time to read this!

I have many (~70) time series showing the average body size (kg) for the ~50 years. Each time series is for the same species but from a different region/area.

I would like to look at the change in body size over time and how this correlates with different regions and variables (e.g., temperature).

I am in over my head! I have scoured through Google and forums but have not found my answer! I would greatly appreciate any help or direction to other resources that you can provide.

Thank you!