I have the following situation. We want to measure if animal weight has an influence on their home range size (measured as an area).

However, there is inherent error measuring an animal home range. The method we're using output the home range value plus a 95% confidence interval.

Is there a way to incorporate this confidence interval in the regression of home range and mass?

I am aware that you can add weight to samples but I'm not sure if there is a better way.