I am surprised by the large number of posts that do not actually contain much more information beyond, "please go to the birdsite and read this or that".
I think we can do better than that. Why not pick the actual content of that tweet (which is usually somewhere on a website anyway) and post it directly?

Hi there! I am Tobias, geoecologist running a #biogeochemistry lab in Berlin. Truly amazed by the chemical machinery of our planet and all things #water! My research is in oceans, rivers and lakes and deals with #waterquality #nutrients #carbon #pollution #isotopes. Looking forward to make #sciencemastodon a thing! Further musings likely include #bikes, #cycling, and #mobility change (did I say bikes?)