Introducing the Continental Gall Size Project, a two-year study on clinal variation in the goldenrod gallfly system.

We are recruiting collaborators to help conduct a systematic assessment of goldenrod-gallfly-predator interactions with the ultimate aim of determining whether optimal gall size varies latitudinally.


Read more about the system here


Left: Goldenrod gallfly (*Eurosta solidaginis*) ; Right: gall induced by oviposition on goldenrod

Left: Goldenrod gallfly (Eurosta solidaginis) ; Right: gall induced by oviposition on goldenrod


Current sign up affiliations and collecting sites



Do you fill a gap in our sampling? Get info on joining the project here!






Written in R and RMarkdown. Source code available on GitHub
gall.size@utoronto.ca