Furthermore, as I just discovered, Timo Maran, my fellow Tartu semiotician, refers to my article in 'Where do your borders lie? Reflections on the semiotical ethics of nature', which was published (pgs. 455-476) in Nature in Literary and Cultural Studies: Transatlantic Conversations on Ecocriticism (eds. Catrin Gersdorf, Sylvia Mayer - Amsterdam/New York 2006: Rodopi). On pg. 467 (footnote 11), he writes:
"Seeing ourselves as intertwined with our environments, surroundings and contexts by meaning relations should also lead us to consider our fellow humans on the same premisses. As shown by Morten Tønnessen, this in its turn may bring along the need to consider ethically also higher semiotic structures, such as habitats, populations, cultures, with which other subjects are related (Tønnessen 2003: 291-2)."
This is to my knowledge the sixth academic reference to my work (2002x2, 2004, 2005, 2006, 2007) - whereof the third to 'Umwelt ethics' (2005, 2006, 2007).