Tripartite Umwelt model applied and further developed in ecocriticism MA thesis of Hernández

Mauricio Sánchez Hernández has written the master thesis "Mariposas imaginando árboles de oyamel: Representaciones literarias del umwelt de la monarca migrante y del humano en la ecoliteratura de Homero Aridjis" (in Spanish) at University of Oslo. He refers quite extensively to an article, especially with regard to the tripartite Umwelt model:

Tønnessen, Morten (2015). “Umwelt and language”. En: E. Velmezova, Stephen J. Cowley y K. Kull (eds.), Biosemiotic Perspectives on Language and Linguistics (Biosemiotics 13): 77-96. DOI: 10.1007/978-3-319-20663-9_5

The thesis includes a section numbered 2.2.2 and named "El modelo tripartito del umwelt según Tønnessen". Hernández also further develops diagrams based on the tripartite Umwelt model, cf. below (imagen 5, p. 21, imagen 6, p. 21, imagen 7, p. 22).