Reference to "Umwelt ethics" article/ontological crisis notion in article by Affifi

My 2003 article "Umwelt ethics" (Sign Systems Studies 31(1): 281-299) is cited in the following article:

Affifi, Ramsey 2013. Biological Pedagogy as Concern for Semiotic Growth. Biosemiotics. Published online June 6^th 2013 (DOI 10.1007/s12304-013-9178-4).

Excerpt:

Habits that encourage future habit-making facilitate the organism's exploration (or development) of its Umwelt landscape. Human actions can either reduce or enable habit-making in other species. Processes such as ecological degradation have broad and violent semiotic impacts and need to be addressed immediately. We are indeed facing an "ontological crisis" (Tønnessen, 2003). But the focus of this paper is on developing a biological pedagogy for our direct encounters with other species. The argument forwarded is that we should encourage novel habit-making.