Altmetrics have led to new quantitative studies of science through social
media interactions. However, there are no models of science communication that
respond to the multiplicity of non-academic channels. Using the 3653 authors
with the highest volume of altmetrics mentions from the main channels (Twitter,
News, Facebook, Wikipedia, Blog, Policy documents, and Peer reviews) to their
publications (2016-2020), it has been analyzed where the audiences of each
discipline are located. The results evidence the generalities and specificities
of these new communication models and the differences between areas. These
findings are useful for the development of science communication policies and
strategies