Nicholas Houde, in an article published in
Ecology and Society, identifies six facets of traditional ecological knowledge: factual observations, management systems, past and current uses, ethics and values, culture and identity, and cosmology. These aspects emphasize how "cooperative management [can] better identify areas of difference and convergence when attempting to bring two ways of thinking and knowing together."
Factual observations The first aspect of traditional ecological knowledge incorporates the factual, specific observations generated by recognition, naming, and classification of discrete components of the environment. This type of "empirical knowledge consists of a set of generalized observations conducted over a long period of time and reinforced by accounts of other TEK holders."
Management systems The second facet refers to the ethical and sustainable use of resources in regards to management systems. More specifically, issues such as dealing with pest management, resource conversion, multiple cropping patterns, and methods for estimating the state of resources can be thought of as part of such management systems. How resource management can adapt to local environments is another crucial aspect of such considerations.
Past and current uses The third facet refers to the time dimension of TEK, focusing on past and current uses of the environment transmitted through oral history, such as land use, settlement, occupancy, and harvest levels. Oral history is used to transmit cultural heritage generation to generation about such topics as medicinal plants and the existence of historical sites, and contributes to a sense of family and community.
Ethics and values The fourth facet refers to value statements and connections between the belief system and the organization of facts. In regards to TEK it refers to
environmental ethics that keeps exploitative abilities in check. This facet also refers to the expression of values concerning the relationship with the habitats of species and their surrounding environment - the human-relationship environment.
Culture and identity The fifth facet refers to the role of language and images of the past giving life to culture. This facet reflects the stories, values, and social relations that reside in places as contributing to the survival, reproduction, and evolution of aboriginal cultures, and identities while stressing "the restorative benefits of cultural landscapes as places for renewal."
Cosmology The sixth facet is a culturally based
cosmology, a system of beliefs and assumptions that underpins other aspects of a
society. It shapes how people understand how the world works, how its elements are connected, and the place of humans within it.
Traditional knowledge varies widely across cultures and are expressed and passed on through language, particularly through
myth and
symbolic terms that convey principles guiding
human–animal relations, interactions with the
natural environment, and broader ideas about
existence. ==Ecosystem management ==