I have a couple of questions about how do you determine the threat factors and how do you determine their maximum impact distance?
Hi @JCJC -
Iâm guessing that youâre asking about the Habitat Quality model? Hopefully others will have more guidance, because my response is âexpert opinion and literature searchâ.
Once youâve determined which species youâre modeling (or perhaps not a particular species, but more generalized natural habitat), youâll look around the area of interest to see whatâs happening there that you (or some other local or species expert) believe to pose a threat. Of course, you can only model what you have spatial data for, so thatâs also a consideration. Then youâll look for studies that talk about the impact distance of those threats, perhaps even studies that used this model.
~ Stacie
One more possible resource is this database of publications that we know of that use InVEST models. It includes which model(s) were used, so you could search for Habitat Quality and see if any of those publications help. This database is about a year old, and is currently being updated.
~ Stacie
Thank you very muchïŒCan these publications be read onlineïŒ
Each entry in the database includes a DOI, which links to the paper online. Itâs likely that some of them are open access, while others are behind a paywall, which you may or may not have access to through your institution.
~ Stacie
Thank you very much!